Database Users

[GUIDE] MAC Rooting Nexus S

1/27/11 Update: Some members have commented that the MoDaCo Superboot method is easier, and although I haven't used it myself, it does look easier. If you want to go that route instead, you'll still need to unlock your bootloader, which means completing Steps 1-5 below. After that, you can go with the method given here: http://forum.xda-developers.com/showthread.php?t=927838
________________________________________________________
The following directions should let you root your Nexus S using an Intel Mac running OS 10.5 or 10.6. Thanks to Koush for providing the method and the recovery img, to ChainsDD for providing Superuser, and to Luxferro for providing a workaround for 2.3.1.
You should apply the 2.3.1 OTA update before obtaining root. Otherwise you'll have to do it over again after the update. If you installed a rooted/insecure boot image with the original instructions and now find yourself unable to upgrade to 2.3.1 (Status 7 error), one option is to use ROM Manager to restore the 2.3.1 Nandroid backup kindly provided by momohammed20 in this thread. From there, you will have stock 2.3.1 and can follow the steps below to obtain root again.
Warning: If you break your phone trying this, I am not responsible. I do not guarantee that the following is safe or that the steps are correct. Rooting your phone voids the warranty. I have no responsibility for anything that occurs as a result of your following these directions! I cannot provide any support nor guide you in undoing this process and restoring the phone to factory condition.
This process will wipe your phone. Ie, you will lose all your apps/data on your phone and have to reinstall them. It will also wipe your external storage, so back that up prior to proceeding if you want to keep anything.
1) Download the "androidsdk.zip" file from here: http://www.box.net/shared/ljhg8t5sjh
Unzip that file (if not already unzipped automatically upon download), and place the "androidsdk" folder on your Desktop. It has to be in this location for the rest of the steps to work.
2) On your phone, go to Menu>Settings>Applications. Select "Development" and check the box next to "USB debugging"
3) Connect the phone to your Mac via the USB cable
4) Open a Terminal window on your Mac (Applications>Utilities>Terminal), and copy/paste the following into the Terminal:
Code:
~/Desktop/androidsdk/platform-tools/adb reboot bootloader
Hit "Return" and wait for your phone to to reboot into Bootloader/Fastboot mode
5) If your Bootloader screen says "LOCK STATE - UNLOCKED" then skip to Step 6. If it says "LOCK STATE - LOCKED" then copy/paste the following into the Terminal:
Code:
~/Desktop/androidsdk/tools/fastboot oem unlock
Hit "Return" and on your phone will prompt you to confirm and warn you that you are going to lose everything. Confirm. At this point you will have an unlocked bootloader.
6) Copy/paste the following into the Terminal window:
Code:
~/Desktop/androidsdk/tools/fastboot flash recovery ~/Desktop/androidsdk/tools/recovery-clockwork-3.0.0.0-crespo.img
Hit "Return" again and wait for recovery to flash.
7) At this point you should still be in Bootloader/Fastboot mode. DO NOT REBOOT YOUR PHONE*. Press the "Volume Down" key until "RECOVERY" is highlighted, and press the "Power" key to select this option.
*Note: You must go to Recovery directly from Bootloader/Fastboot mode after Step 6 without rebooting your phone in between, or else your phone will replace ClockworkMod Recovery, hang at the "Google" splash screen requiring a battery pull, and you'll need to start again from Step 6.
For the following steps while in Recovery, use "Volume Down" to highlight a selection and "Power" to choose that selection:
8) Choose "mounts and storage"
9) Choose "mount USB storage". Your phone should now be mounted on the Mac as a Device called "NO NAME"
10) Look inside the "androidsdk" folder on your Desktop for a file called "su2361ef.zip", and using the Finder on your Mac, copy that file (without unzipping it) to the main directory of your mounted phone ("NO NAME").
11) Eject/unmount your phone in the Finder on your Mac.
12) On your phone, choose "Unmount"
13) Choose "mount /system"
14) Choose "+++++Go Back+++++"
15) Choose "install zip from sdcard"
16) Choose "choose zip from sdcard"
17) Choose "su2361ef.zip"
At this point you have root, but your phone will continue to replace ClockworkMod Recovery on reboot. To prevent this, do the following:
1) Reboot your phone, and download the app "Root Explorer" from the Market
2) Open Root Explorer and navigate to the "etc" directory.
3) Tap on the gray box that says "Mount R/W"
4) Tap and hold on the file "install-recovery.sh" and rename this file to "install-recovery.sh.old"
5) Download the app "ROM Manager"
6) Open ROM Manager and choose "Flash ClockworkMod Recovery". At this point you are all set .
---------------------------------------------
To re-lock your bootloader (Optional step):
1) With your phone connected and "USB Debugging" still enabled (which it will be unless you disabled it after the above), copy/paste the following to the Terminal:
Code:
~/Desktop/androidsdk/platform-tools/adb reboot bootloader
Hit "Return" and wait for your phone to to reboot into Bootloader/Fastboot mode
2) Copy/paste the following to the Terminal:
Code:
~/Desktop/androidsdk/tools/fastboot oem lock
Hit "Return".
Reboot your phone.
---------------------------------------------
Major thanks to Koush, ChainsDD, momohammed20, and Luxferro!

Your gonna need the recompiled fastboot. Then it makes it super easy.

So whats the advantage of having a rooted/insecure boot image as opposed to not? Sorry for the noob question

thanks x1,000,000
I would be lost without this, thanks a lot!!!
took me about 10-15 minutes
Didn't know I was going to lose all my data though, luckily I've only had it a few days and it all can be replaced

You freaking rock man! Thanks for this. Ill be rooting mine very soon.

I'm a little confused here...
About 1/5 of the way down on that page, find the link for "su-2.3.6.1-ef-signed.zip", which is the link for the Froyo version of Superuser. Control-click (right click) on that link and choose "Download Linked File As..." Save that file (called "su2361ef") to your desktop and then copy it to the main directory of your mounted phone ("NO NAME").
Am I to change the name of this file to "su2361ef" or leave it as is... "su-2.3.6.1-ef-signed.zip" than place it into my main directory?
Thanks

Help please.
I'm down to the final steps, but when I try to get into recovery mode I keep getting a little Android with an "!" over it.
What am I doing wrong? I've pulled the battery, and tried it over a few times, but I keep getting the same thing.

rashad1 said:
thanks x1,000,000
I would be lost without this, thanks a lot!!!
took me about 10-15 minutes
Didn't know I was going to lose all my data though, luckily I've only had it a few days and it all can be replaced
Click to expand...
Click to collapse
Glad it was helpful. You should have gotten a warning on your phone screen about losing the data in Step 10, and you could have turned back at that point. I've now edited the post above to make it clear there as well.

WilliamStern said:
I'm a little confused here...
About 1/5 of the way down on that page, find the link for "su-2.3.6.1-ef-signed.zip", which is the link for the Froyo version of Superuser. Control-click (right click) on that link and choose "Download Linked File As..." Save that file (called "su2361ef") to your desktop and then copy it to the main directory of your mounted phone ("NO NAME").
Am I to change the name of this file to "su2361ef" or leave it as is... "su-2.3.6.1-ef-signed.zip" than place it into my main directory?
Thanks
Click to expand...
Click to collapse
When I did it, the zip was already called "su2361ef". If yours is called "su-2.3.6.1-ef-signed.zip", I would leave it like that without renaming. Just remember the name so you can choose it in Step 21.
WilliamStern said:
Help please.
I'm down to the final steps, but when I try to get into recovery mode I keep getting a little Android with an "!" over it.
What am I doing wrong? I've pulled the battery, and tried it over a few times, but I keep getting the same thing.
Click to expand...
Click to collapse
Which step were you at? I hope someone can help you. I don't have any expertise . I only shared the steps above because they worked for me.

Amin Sabet said:
When I did it, the zip was already called "su2361ef". If yours is called "su-2.3.6.1-ef-signed.zip", I would leave it like that without renaming. Just remember the name so you can choose it in Step 20.
Which step were you at? I hope someone can help you. I don't have any expertise . I only shared the steps above because they worked for me.
Click to expand...
Click to collapse
I keep getting the "!" above the little Android, but when press power button plus volume up I only get 4 options.
-reboot system now
-apply update from /sdcard
-wipe data/factory reset
-wipe cache partition
I'm not seeing any of the other options you mention above.
I WANT ROOT! lol

WilliamStern said:
I keep getting the "!" above the little Android, but when press power button plus volume up I only get 4 options.
-reboot system now
-apply update from /sdcard
-wipe data/factory reset
-wipe cache partition
I'm not seeing any of the other options you mention above.
I WANT ROOT! lol
Click to expand...
Click to collapse
You did not flash the clockworkmod recovery correctly. The Triangle with exclamation point is the stock recovery image.
Redo the step that says fastboot flash recovery etc..etc..
Sent from my Nexus S

How about a noob guide for windows also Not that I wont be able to figure out from other sources when I want to root for the first time. But a noob guide here will come handy as well ;-)

Err... I give up. I just can't seem to get anything to work. I've followed everything step by step and nothing. I think it's my bootloader that won't unlock?

WilliamStern said:
Err... I give up. I just can't seem to get anything to work. I've followed everything step by step and nothing. I think it's my bootloader that won't unlock?
Click to expand...
Click to collapse
we can't help you much if you don't provide any detailed info other than you're not in the right recovery. Boot the phone on again and type this in terminal:
Code:
./adb reboot bootloader
check status of bootloader: LOCKED / UNLOCKED
and we go from there.

jroid said:
we can't help you much if you don't provide any detailed info other than you're not in the right recovery. Boot the phone on again and type this in terminal:
Code:
./adb reboot bootloader
check status of bootloader: LOCKED / UNLOCKED
and we go from there.
Click to expand...
Click to collapse
I think this is where I'm having an issue? Nothing seems to happen whenever I input a command into my terminal on my computer.

WilliamStern said:
I think this is where I'm having an issue? Nothing seems to happen whenever I input a command into my terminal on my computer.
Click to expand...
Click to collapse
What happens if you plug your phone into the USB and type adb devices?

Michael.B. said:
What happens if you plug your phone into the USB and type adb devices?
Click to expand...
Click to collapse
I'm new at all this, so I'm sorry.
this is what I get
-bash: adb: command not found

WilliamStern said:
I'm new at all this, so I'm sorry.
this is what I get
-bash: adb: command not found
Click to expand...
Click to collapse
Seems like you have not installed adb yet. What OS are you on?
EDIT: Duh, looked at the thread title. I may not be of much help, but did you update your path directory to look at the correct folders?

Michael.B. said:
Seems like you have not installed adb yet. What OS are you on?
EDIT: Duh, looked at the thread title. I may not be of much help, but did you update your path directory to look at the correct folders?
Click to expand...
Click to collapse
Yeah, I did the updates.
I'm gonna try again from scratch. Thanks for the help.

William, what happens when you plug your phone into the Mac, open Terminal, and copy/paste the following command (don't forget to change "Amin" to the name of YOUR home directory):
Code:
/Users/Amin/Desktop/androidsdk/platform-tools/adb devices
Typing just "adb devices" won't work because we never set the path to adb, but the above code should work (and give you a list of connected devices, which would be just your Nexus represented as a number) if you correctly did Steps 1-4 above.

[Noob] The Noob Guide to Rooting 2.3.3 (hboot 2.16)

I rooted my phone this last Monday with great success, and have been happily flashing ROMs ever since. I have had a few friends/aquaintances asking me how to do this, so I thought I would post this here to help them, and hopefully a few others here.
Special thanks to evilecho. I just added a few “noob” steps to his amazing tutorial.
If installed, uninstall HTC Sync. This is very important!
Backup anything you need backed up off your phone. Most things on your phone will be safe but back everything up just to be sure.
Download SuperUser zip & Amon_RA’s recovery (if you don’t want to use the Clockwork Mod recover that ships with Revolutionary)
Note: Many people are advising that people new to rooting use Amon_RA’s recovery. Amon_RA’s recovery is very simple, reliable, and very solid and does everything you need to flash a new ROM, if you would like.​
Copy both to your root of SD card
Download and install HTC Drivers
Download Revolutionary: S-OFF & Recovery Tool
Note: The download link is at the bottom of the page. You will need to enter your EVO’s Serial number which is located under the battery. Make sure you to copy/write down the beta key. You will need it later)​
Copy the beta key to Notepad or a similar app
On your EVO:
Enable USB debugging mode: Go to Settings –> Applications –> Development –> check box for USB debugging [/INDENT]
Disable Fast boot: Go to Settings –> Power –> check box for Fast Boot
Connect your EVO to your PC with a USB cable - Select Charge Only
Unzip the Revolutionary tool and run it as admin (to run as admin, right click and select run as admin)
Open a command prompt (Start -> Run -> cmd)
Navigate to the folder where you unzipped the Revolutionary tool
Type revolutionary.exe
The tool will recognize your device
Enter/paste the beta key that you pasted into Notepad
Note: to paste into the command prompt, right click on the top bar of the window -> Edit -> Paste​
The phone will fastboot twice
It will ask you if you want to install the Clockwork Mod recovery. Select Yes.
Note: Instructions to switch to Amon_RA to follow.​
After Revolutionary is complete, boot into the bootloader (if not already there) by turning off the phone, then hold the power button and the down volume button for a few seconds. You should then see “Revolutionary” at the top, and “S-OFF”.
The phone should now ask you if you want to update the recovery (by recognizing the PC36IMG.zip file that we downloaded and copied to the SD card of the phone). Select yes. This will update your recovery to Amon_RA's.
Use the up and down arrow keys and choose “Recovery” by pushing the power button
Choose “Flash zip from sdcard”
Choose “Choose zip from sdcard”
Use the up arrow key to move you to the bottom of the list, then look for “su-2.3.6.3-efgh-signed.zip” and push the power button to select
Push the power button again to accept
You are now rooted!
At this point, I would recommend going to this awesome thread by sekigah84, which will walk you through creating a Nanroid backup and flashing ROMs. Enjoy!
As always, this will void your warranty and may possibly damage your phone. You and you alone are responsible for anything that you do. Everything contained in this thread is for informational purposes only.​
If any of the amazing other readers/contributors here on XDA find any discrepancies here, please let me know!​

[Guide] Ultimate Nexus 4 Root Guide

Post One: Unlocking and Rooting
Post Two: Installing Roms / Kernels / Tweaks
Post Three: Panic Section / FAQ / Miscellaneous
Unlocking The Bootloader And Obtaining Root
*This part of the tutorial is geared towards Windows users. The MAC instructions are very similar, from what I understand. Install the package the same way. All ADB/Fastboot commands may need to start with "adb-mac" (no quotes) rather than "adb" (no quotes). Due to the vast amount of Linux distros available; instructions will vary for your device. Once ADB/Fastboot are set up all command will begin with "./adb" (no quotes) rather than "adb" (no quotes). Once ADB/Fastboot are set up; this guide is relevant to everyone.*
Time required:
20-40 minutes.
Setting up ADB for our device:
Download the AndroidSDK onto your computer.
Note: Google changes their mind every other week as to if this will be distributed as a .zip or an .exe. If you get an .zip file, simply extract the contents to your C:\ drive. For an .exe install it like you would any other program, but set the path directly to the C:\ drive when the installer asks.
Or...you can use this page to download the "ADB for Dummies AIO App."
This will automatically install ADB for you to your C:\ directory. It's very very simple this way.
If your platform-tools folder doesn't have a fastboot.exe, place this fastboot.exe file in your C:\android-sdk-windows\platform-tools (or possibly simply called tools, if you set up ADB ages ago) folder.
Now you have ADB installed! Congratulations.
Unlocking the Bootloader:
***NOTE***
This will perform a factory reset on your device. You will lose all applications. Even the data on your SD Card! I'd recommend making a Backup to your computer BEFORE performing this. There is a method for backing your data up, detailed HERE.
For the time being, there is a method available that will allow you to unlock your device (and root it) without losing your data.
For instructions, click HERE. Please note: this is a hack and isn't the "conventional" and "accepted" way of unlocking your bootloader on a nexus device. The wipe requirement is there for your safety, really, and I'm certain this will be patched in the upcoming releases.
Get the drivers:
Uninstall any previously attempted drivers if they don't work and move to the next.
Option One:
Navigate to the "Device Manager" (Control Panel > Device Manager) in Windows and Select the android device. Open the properties and select the "Install Driver" option. Pick the driver with "Install from disk." Ignore any warnings about the driver not being signed properly.
PDAnet's drivers may work if the above options don't. Simply install PDAnet (after uninstalling any previous attempted driver installations) to get the drivers.
While that is downloading, on your Nexus 4: turn USB debugging on.
To do so; you must first go to Settings>About>Build Number and click seven times.
The actual setting can then be found in Settings>Developer Options>USB Debugging
Once the drivers are installed, navigate to the C:\android-sdk-windows\platform-tools folder on your computer.
Hold shift and right click. Select "Open Command Window Here."
Plug your phone into the computer. Now in this command window type:
Code:
adb reboot bootloader
(Hit Enter)
Your phone should now boot into a screen with a green android with his chest exposed.
Type this:
Code:
fastboot oem unlock
(Hit Enter)
If your Command Prompt displays the message "waiting for device" your driver wasn't successfully installed.
Close the Command Prompt window and open Device manager while your phone is still plugged in. (Search for it using the search option).
Right Click the "Android" option and select Update Driver. Choose to "Browse My Computer" and "Let Me Pick From A List." Pick the Driver with the newest date and install it. Now retry the code above.
Your phone will ask if you want to unlock it. Select "Yes" by using the volume keys and use power to select it.
Now, navigate to "Recovery Mode" with the volume keys. Use power to select.
A screen with another Android will pop up. Press Volume Up and Power at the same time.
Select Factory Reset. This process may take a few minutes. Be patient and let it work.
Once finished, select "Reboot."
Your phone is now unlocked!
Obtaining Root Access and Custom Recovery:
Turn on USB Debugging.
To do so; you must first go to Settings>About>Build Number and click seven times.
The actual setting can then be found in Settings>Developer Options>USB Debugging
Download the following:
SuperSU (CWM .zip)
CWM (Pick the version for your device)
Place the recovery-clockwork-VERSIONNUMBER-mako.img file into your C:\android-sdk-windows\platform-tools folder.
Put the SuperSU.zip on your phone.
Open another Command Prompt if it isn't still open. (Navigate to C:\android-sdk-windows\platform-tools and shift + right click. Select "Open Command Window Here.")
With your phone plugged in type:
Code:
adb reboot bootloader
(Hit Enter)
And wait for your phone to boot into the android again.
Now type:
Code:
fastboot flash recovery IMAGENAME.img
(Change the file name to the correct file name and Hit Enter)
Once that is finished: select the "Recovery Mode" option again on your phone.
You should get a new recovery menu here. Select "install zip from sd card" and "choose zip from sd card."
Find the SuperSU.zip that you transferred earlier and select "Yes" to installing.
Navigate back to "Reboot" and reboot your phone.
You're now rooted!
However, ClockworkMod Recovery won't continue to load after this.
To fix this, find "Rom Manager" from the market. (The free version is fine.) Use the "Flash ClockworkMod Recovery" option.
If your recovery still doesn't stick around after a reboot, you have another couple options. Find a file explorer that allows root access, such as Root Explorer. Use this program to rename /system/etc/install-recovery.sh to /system/etc/install-recovery.bak. You'll need to mount the system as r/w to do this. Root Explorer provides a button at the top to do so.
Or, you can do this completely manually by firing up ADB again and running a few commands:
Code:
adb shell
(Hit Enter)
Code:
su
(Hit Enter)
Code:
mount -o remount,rw -t ext4 /dev/block/mmcblk0p1 /system
(Hit Enter)
Code:
mv /system/etc/install-recovery.sh /system/etc/install-recovery.bak
(Hit Enter)
Congratulations!
Your phone is now unlocked, rooted, and has a custom recovery!
Continue reading the next posts for info on getting custom roms, kernels, tweaks, and more!
***I take no responsibility for what happens to your phone due to following this guide! That being said, not only am I sure you'll be fine...but there are an endless amount of users who would be glad to help if you need it.***
Thanks:
Google, for making Android a reality.
VanillaTbone, for the ADB AIO app.
Efrant, for posting about a bootloader locking utility without USB.
ClockworkMod team, for being a part of making our phones as awesome as they are.
The assorted developers, who continue to push out amazing material for us to use.
The awesome community, for endlessly supporting both Android itself and its users.

Installing Custom Roms Kernels and Tweaks
All of the instructions below require your bootloader to be unlocked. Please follow the guide above and return here when you're done.
Backing Your Files Up:
Time required:
15-25 minutes.
Making a Nandroid
The first thing you're going to want to do is back up your phone's entire system. This is done by making a "nandroid."
To do this, boot into ClockworkMod Recovery. To accomplish this: Turn your phone off. Once it is completely off: hold both volume buttons and the power button until the Android with his chest exposed is displayed. Navigate to the "Recovery Mode" option and select "backup."
This will take some time. Be patient and let it finish. This process is important! You should always have a recent nandroid available on your device.
Backing Your Data Up
Install Titanium Backup from the market.
Open Titanium Backup. A Superuser request should pop up. Allow it. Note: if Titanium Backup then says it failed to obtain root access; press the menu button and select more>reload application.
Press menu>batch. Select "Backup all User Apps." Select all and "Run the Batch Operation."
Let the process complete. This may take quite some time: depending on how many applications you have installed.
You can now backup your Text Messages, Bookmarks, and WiFi addresses with Titanium Backup as well.
Press Menu>Backup Data To XML to do so.
Backing Your Contacts Up
Note: This process may or not be useful to you. The Google servers should automatically import any contacts you have stored back whenever you install a new rom. Also note that Facebook/Google+/etc contacts will need to be synced again through their respective applications.
Open the Contacts application.
Press the Menu button.
Select import/export.
Export to storage.
Installing A Rom (Or Kernel/Radios/Tweaks/Themes/etc.)
Time Required:
5-10 minutes.
Note:
Follow the guide above about backing your phone up before attempting!
This guide will also work for flashing kernels/radios/themes/tweaks/etc. Simply ignore the part about wiping data and wipe whatever the thread says you should. You only need to restore data after a rom install.
Find a Rom You'd Like To Try:
Nexus 4 Original Development
Nexus 4 Development
Download the rom you'd like to try on your device.
Most roms also require you to install "gapps" as well.
You can find the correct ones for the rom you're using in the rom thread.
Make sure the Rom and Gapps are on your SD card.
Now, open Google Wallet (if you have it installed) and press Options>Settings>Reset Google Wallet. This will prevent the "Secure Element" errors some users have experienced.
Boot into ClockworkMod Recovery by turning your device completely off. Hold volume up, volume down, and power until the green Android with the open chest is displayed. Navigate to "Recovery Mode" with the volume buttons and select using the power button.
Remember to have a recent nandroid before continuing!
Navigate to "wipe data/factory reset" and select it. Select "yes."
Wait for the process to complete. This may take some time. Be patient!
Once complete: Navigate to "Install Zip from SD card" and "Choose zip from SD card."
Find the rom's .zip and install it. Once that completes install any applicable gapps' .zip.
Select the "Reboot" option.
Congratulations! Your phone should now boot into the custom rom!
Follow the prompts to re-activate your phone.
Restoring Your Applications / Contacts / Nandroid
Time Required:
5-15 minutes.
Restoring Your Applicaions
Install Titanium Backup. Note: you may want the pro key. If you have it, you won't have to manually click "install" on each application. The process is completely automated. Open Titanium Backup (grant root access. If titanium says it failed to obtain root access, press menu>more>reload application). Press menu>batch>restore missing apps with data. Now, here you have a choice to make. Do you want a completely clean install? Select "app only" and run the batch operation (Deselect Google Wallet first. We don't want to risk restoring wallet in any way. Install it manually through the Play Store.). Do you want all of your application data (saved games/settings/etc)? Select "app+data" and run the batch operation (Deselect Google Wallet first. We don't want to risk restoring wallet in any way. Install it manually through the Play Store.). This MAY cause you problems or it may not. Personally, I often restore application data and seldom run into any trouble. If you do find that restoring data caused problems, follow the guide above to re-install your rom and restore without data. This process will take some time. Be patient (I'd suggest turning your screen off so the screen doesn't burn, but that's just me.) It will vibrate upon completion.
You can now restore your Text Messages, Bookmarks, and WiFi addresses if you backed them up by pressing Menu>Restore Data From XML.
Note:
Overclocking/CPU tweaking applications should never be restored with data. Simply deselect it from the list.
Facebook/Haxsync/Google+ may have problems restoring your contacts when installed through Titanium Backup. Simply uninstall and reinstall through the market (and be sure to log in and select to sync your contacts again).
Also, if you have NFC Task Launcher successfully launching Tasker tasks with your stickers: they may not immediately work.
Through my testing, it's as simple to fix as uninstalling NFC Task Launcher and Tasker. Restore Tasker first. Then restore NFC task launcher.
Restoring Your Contacts
If google fails to restore your contacts (not facebook/haxsync/google+/etc) you may import them manually if you backed them up.
Open the contacts application and press menu>import/export>import from storage.
Restoring A Nandroid
If your phone is acting funny or won't boot...restore a nandroid from a previous rom or working set-up.
You may also use a Nandroid to switch back to a previous rom if you decide you don't like the one you're on.
Do this by booting into ClockworkMod Recovery (hold volume up, volume down, and power while your phone is off and navigate to "Recovery Mode").
Simply select "restore" and find the most recent (or relevant) backup.
This process will take some time. Be patient and let it complete! Once done, select "Reboot."
Note:
Nandroids are stored in the "clockworkmod" folder on your SD card. They take up quite a bit of space. ALWAYS have at least one recent one on your SD card. However, since these are huge files: you may like to delete old ones to save space. You must delete backups by booting into CWM and navigating to Backup and Restore>Delete.
Important Notes About Restoration
I outline the method of using Titanium Backup above for a reason. Restoring system applications and data is the most common cause of problems on custom roms. For this reason, always ONLY restore "missing applications" from "user applications" that were backed up when restoring onto a new rom. Every time you restore system data or applications a narwhal sodomizes your favorite childhood cartoon. This is FACT.
Installing Alternate Custom Recoveries
If you find a custom recovery (such as the touch-recovery options) that came as a .img file:
Use these instructions to flash. Plug your phone into the computer. Open up ADB. Move the .img to the C:\android-sdk-windows\platform-tools folder.
Type the following:
Code:
adb reboot bootloader
(Hit Enter)
You can also manually boot to the bootloader by powering off and holding volume down, volume up, power buttons until the green Android with his chest exposed is displayed.
Then type:
Code:
fastboot flash recovery FILENAME.img
(Replace the file name with whatever the .img is called and Hit Enter).
Wait for the process to complete and reboot.
***I take no responsibility for what happens to your phone due to following this guide! That being said, not only am I sure you'll be fine...but there are an endless amount of users who would be glad to help if you need it.***

Panic Section! (Something is Wrong)
Q: My phone won't boot!
A: The easiest option is to get into recovery and restore a nandroid using the above guide (pull battery to put phone in an off-state if needed).
However, more advanced options are available if you don't have a nandroid available (You're naughty).
Do you have another rom .zip available on your SD card? If so, simply use the above guide for installing a rom to get you booting again.
If not, you can download one on your PC. Boot into fastboot (the green Android with open chest menu). Navigate to recovery and select it with the power button.
Move the .zip to the C:\android-sdk-windows\platform-tools folder.
Open ADB.
Change the NAMEOFZIP.zip below to the correct file name...and perform the action.
Code:
adb push NAMEOFZIP.zip /sdcard/NAMEOFZIP.zip
(Hit enter)
You may have to reboot recovery to get the file to show up. Now follow the guide above for flashing a rom to get you booting again.
Did you install a tweak that modified only a file or two on your phone? (Find this out by opening the .zip and looking in the folders (ignore META-INF). Good news! We MAY be able to recover you completely. If this doesn't work...you'll have to follow another method.
Get your phone into fastboot (the boot-menu that allows you to select recovery/reboot/etc). Navigate to Recovery. Start up ADB. Pull the files that were modified out of the stock rom's .zip (using whatever tweak you were installing as reference to find what was changed) that you're on into the C:\android-sdk-windows\platform-tools folder. Now we're going to push these files onto your phone...replacing the tweaked ones and hopefully getting you booted again. Use this code, but change the values of the file name and where it should reside. This is only an example!
Code:
adb shell
(Hit Enter)
Code:
su
(Hit Enter)
Code:
mount -o remount,rw -t ext4 /dev/block/mmcblk0p1 /system
(Hit Enter)
This will mount your system so you can write to it.
Code:
exit
(Hit Enter)
This should exit shell and allow the use of adb commands again. You may need to type it a couple of times (until the #_ changes back to the platform_tools> prompt).
Code:
adb push framework-res.apk /system/framework/framework-res.apk
(Press enter after each file that you need to replace).
Note: This last option probably won't work. I'd just skip over it unless you're absolutely adamant about restoring your current setup and want to try everything possible.
Q: I want my SDcard files from my phone...but I'm in a situation where I need to flash stock images! This will erase my SD content. What can I do to save it?
A: Do you have a custom recovery installed? If not, download a custom recovery from post one in this guide and flash it using those instructions. You'll need to be in a custom recovery in order to obtain ADB access without booting your phone. Boot into recovery (With phone turned off: hold Power and Volume+ and Volume- until the bootloader pops up and navigate to "Recovery"). Run the command:
Code:
adb pull /sdcard/ /SDCARD/
(Hit Enter)
This will put all of your files into a folder called "SDCARD" in your C:\ drive. Keep in mind that this will take a LONG time. Maybe a couple of hours.
To restore once you're booting again:
Move the "SDCARD" folder you created from your C:\ drive to the platform-tools folder. *Then input:
Code:
adb push SDCARD /sdcard/
(Hit Enter)
Q: How do I make an "ADB Backup?"
A: An ADB Backup will backup your phones data (applications and their settings). Follow the guide HERE about ADB Backups.
Q: My phone gets really sluggish and often turns off or reboots on its own.
A: Without knowing anything about your situation...I'd say you either have severely bad data somewhere or some bad kernel tweaks. Use the rom install guide above, paying close attention to the part about backing up and restoring if you haven't already. In the case of a kernel problem, you're likely undervolting too low. Restore the stock kernel values and see if your problems subside.
Q: My phone screen won't turn on! This requires a battery pull to fix.
A: This is called a "Black Screen of Death" or BSOD. This is generally due to using a hotplug governor (one that turns cores off with the screen off) or possibly undervolting your device too low. Change governors or up your slots a bit.
Q: My phone is doing really weird things. Regardless of kernel/rom and even if I don't restore any data at all! Either that or I simply cannot boot up! My phone is possessed no matter what I do!
Download the stock IMAGES for your device and extract the files using 7-zip. Move all of the extracted files to your platform-tools folder. Open the flash-all.sh file with a text editor. Copy and paste the commands (one by one) and wait for each process to complete for continuing.
FAQ
Roms/Kernels
Q: What is the best rom?
A: The "best" rom is a matter of opinion. Do you like a certain customization and can't live without it? Use a rom that has that option.
Q: What is the best rom for battery life?
A: Roms themselves really shouldn't impact your battery all that much. They can have an impact, but if you're really looking for better battery I'd suggest swapping kernels or tweaking yours.
Q: What is the best rom for stability?
A: All of the roms out are "stable." They may have options that don't work correctly, but generally: this is user error. If you follow my advice on installing a rom, you'll end up with MUCH fewer bugs.
Q: What is the best kernel?
A: The best kernel is a matter of opinion. Some users may love one, while others swear by another. Find one you like and tweak it accordingly.
Q: How do I tweak a kernel for better battery?
A: Generally, you'll want to either change your governor and or undervolt and or underclock your kernel. This is done either by using SetCPU or similar apps, or with an option in your rom (usually labeled "performance" or something similar). Take note: extremely high/low voltages may cause instability. Never "set at boot" until you've thoroughly tested the options you've set. Testing includes low strain (like turning your screen off for an hour) and high strain (like playing a game for an hour) scenarios. To be extra safe: run the values for a couple days before setting them at boot. Follow the users ideas in the kernel's threads for some guidelines. However, remember that not all values will play nicely with all phones.
Miscellaneous
Q: Why isn't Google Wallet working at [store]?
A: I'm not sure if it's a Google Wallet problem, or a problem with the terminal. But I personally struggle to find a terminal that consistently works in my area. Something that has generally worked for me is to open wallet and go to Options>Reset Google Wallet. You must then re-add any cards you had.
Q: Does my ass look good in these shorts?
A: Yes.
Neat Ideas / How to Show Off the Nexus 4
-Get some NFC stickers. Tagstand has them available.
You can use these to make your phone perform certain tasks when you touch the sticker. Use NFC Task Launcher to define the tasks. These are capable of doing simple things like muting your volume to the more complex like turning on Tasker tasks that do things like auto-reply to text messages while you're at work.
-Do you have any suggestions? Submit them below!
***I take no responsibility for what happens to your phone due to following this guide! That being said, not only am I sure you'll be fine...but there are an endless amount of users who would be glad to help if you need it.***

ADB Backups:
SDcard backup:
Code:
adb pull /sdcard/ /sdcard/
(This will pull all of your sdcard contents to an "sdcard" folder in your C:\ directory)
Applications and their data:
Take note, that you'll need to be using CyanogenMod's method for setting up ADB to do this. The ADB AIO application installs an older SDK without this functionality. First, get your drivers installed (detailed in post one). Once you get ADB installed (post one), navigate to the C:\android-sdk-windows\platform-tools folder on your computer. Hold shift and right click. Select "Open Command Window Here."
Input this while your phone is turned on and USB Debugging is Enabled:
To do so; you must first go to Settings>About>Build Number and click seven times.
The actual setting can then be found in Settings>Developer Options>USB Debugging
Type this:
Code:
adb backup -apk -noshared -all -nosystem
(Hit Enter)
Your phone will ask for a password. Input one and remember it.
Once the process completes: continue with unlocking and rooting your phone.
Restoration:
Upon unlocking and rooting your phone: open up ADB again.
Enter this code:
Code:
adb restore backup.ab
(Hit Enter)
Input the password you saved to this file earlier, and wait for the restore to complete.
To restore your SDcard backup, first move the "sdcard" folder that was made in the backup process to your platform-tools folder.
Then run:
Code:
adb push sdcard /sdcard/

Do you have to install "ADB" ?

As far as like...clicking it and letting the windows installer install...no.
The exe file will read the commands in cmd without "installation."

Nice Work!

I've just added this guide to the Nexus 4 Complete Index
Sent from my GT-I9100 using xda premium

Great work!!! nice and clean reading!

Can this guide include information on how to re-lock bootloader and unroot the device? Does this informaiton exist?
I need to RMA my phone due to dead pixels and I want to make sure I dont have any issues with the warranty.

jayluke said:
Can this guide include information on how to re-lock bootloader and unroot the device? Does this informaiton exist?
I need to RMA my phone due to dead pixels and I want to make sure I dont have any issues with the warranty.
Click to expand...
Click to collapse
Post 3.
fastboot oem lock
Locks the device.

How long is the first boot, after unlocking the bootloader, supposed to take? Mine's sitting there for quite a while already. (I had a lot of stuff installed, but still, this is really long.)
EDIT: When rebooting the custom recovery, you have to say "yes" to the message it gives you, something about keeping some recovery. I had originally said no because I didn't flash it, I just booted it once.

I just got my nexus yesterday, and this isnt the first phone that I have rooted.... however... my settings on the thing are extremely basic..
How do I enable usb debugging if I dont have the option in the settings?
Thanks
Chris
---------- Post added at 03:19 PM ---------- Previous post was at 03:14 PM ----------
I just got my nexus yesterday, and this isnt the first phone that I have rooted.... however... my settings on the thing are extremely basic..
How do I enable usb debugging if I dont have the option in the settings?
Thanks
Chris
Edit: Got an app to enable it... still not in the menu though.

wizshaw said:
I just got my nexus yesterday, and this isnt the first phone that I have rooted.... however... my settings on the thing are extremely basic..
How do I enable usb debugging if I dont have the option in the settings?
Thanks
Chris
---------- Post added at 03:19 PM ---------- Previous post was at 03:14 PM ----------
I just got my nexus yesterday, and this isnt the first phone that I have rooted.... however... my settings on the thing are extremely basic..
How do I enable usb debugging if I dont have the option in the settings?
Thanks
Chris
Edit: Got an app to enable it... still not in the menu though.
Click to expand...
Click to collapse
Oh geeze!
I forgot.
Settings>about>version number I think...
Click 7 times to enable developer options.
Will update op soon.

Quick question: is there a reason the first post links to SuperSU version 0.98, when version 0.99 is the most recent? If version 0.99 has known issues with the Nexus 4, I don't want to use it on my device.

The 0.99 version came out after this guide was posted. I was offered to upgrade to the new version of supersu from 0.98 and so far no problem at all.

Does this work on the latest version of JB (4.2.1)?

When installing a new ROM it says to perform a factory reset through CWM, which will remove all apps and data but should keep all your pictures, videos, songs etc.
It doesn't mention to wipe the System partition as well. Is this not necessary when flashing ROMs on a Nexus?
Prior to owning the N4 I had the Galaxy S 2 and it was always stated in the OP instructions to wipe data/factory reset, wipe system, clear cache, clear dalvik and then flash ROM and Gapps.
However, I don't notice in any guides or instructions for N4 ROMS to wipe the system partition, just the data partition. Is there a reason for this or is it not necessary to wipe the system partition? Thanks. Great guide by the way.
Peace

thank u for ur effort

Chochiwpg said:
When installing a new ROM it says to perform a factory reset through CWM, which will remove all apps and data but should keep all your pictures, videos, songs etc.
It doesn't mention to wipe the System partition as well. Is this not necessary when flashing ROMs on a Nexus?
Prior to owning the N4 I had the Galaxy S 2 and it was always stated in the OP instructions to wipe data/factory reset, wipe system, clear cache, clear dalvik and then flash ROM and Gapps.
However, I don't notice in any guides or instructions for N4 ROMS to wipe the system partition, just the data partition. Is there a reason for this or is it not necessary to wipe the system partition? Thanks. Great guide by the way.
Peace
Click to expand...
Click to collapse
I actually have a question along these lines.
I just came from a LG G2X so things were different for me whenever I flashed ROM's/kernels. For one thing, I had an external sd card so whenever CWM made it's backups, they went to that automatically and I didn't have to worry about wiping since everything was on the external. This phone doesn't have an external so where do the backups go? From the looks of the new CWM 6.0.2.0, the backups (and blobs now apparently) go to /data/media/clockworkmod. Well I guess my question here is if you have to wipe /data for installing new ROM's, how would I restore a backup because they would have been deleted off the /data partition. I tried adb pulling /data/media/clockworkmod to my computer but it won't go. Don't know if it's because that partition is mounted while the phone is in use or what. I tried the mount/umount command that OP listed but it won't work for me. Don't want to flash ANYTHING on this phone until I know for a fact I can get to the backups that I'm creating.

trying to bring my brothers A500 to life in 2019

Hey together,
I really hope someone out there is still using a A500 Tablet and may be able to help me fix a weird issue i encounter on every ROM i tried so far.
I installed the ROMs mentioned in this Thread: https://forum.xda-developers.com/iconia-a500/general/2018-a500-upgrade-threaddownloads-to-t3832293
And all of them come with the Same Problem for me.
If i try to open the Google PlayStore or something else that wants me to login into a Google Account it just says: "There was a problem communicating with Google Servers" "Try again later"
anyone knows of this issue ? All the fixes several Google searches gave me did not help to fix that issue for me on any of the ROMs.
help would be highly appreciated
kind regards
Finn

Hi,
have you read the tips? It says:
"- Google play will not work right if you do not format your data partition to f2fs. (You can do this in recovery)"
Have you tried it?

Matra-PB said:
Hi,
have you read the tips? It says:
"- Google play will not work right if you do not format your data partition to f2fs. (You can do this in recovery)"
Have you tried it?
Click to expand...
Click to collapse
That may not be the problem I've hear a lot of people are having this problem. But it's a good place to start if he hasn't tried it yet.

Success story upgrading A500 in 2019 July
finneus_ said:
Hey together,
I really hope someone out there is still using a A500 Tablet and may be able to help me fix a weird issue i encounter on every ROM i tried so far.
I installed the ROMs mentioned in this Thread: https://forum.xda-developers.com/iconia-a500/general/2018-a500-upgrade-threaddownloads-to-t3832293
And all of them come with the Same Problem for me.
If i try to open the Google PlayStore or something else that wants me to login into a Google Account it just says: "There was a problem communicating with Google Servers" "Try again later"
anyone knows of this issue ? All the fixes several Google searches gave me did not help to fix that issue for me on any of the ROMs.
help would be highly appreciated
kind regards
Finn
Click to expand...
Click to collapse
First my thanks to the forum key members for providing answers to queries and to all the key contributors of SW/ROMS in this forum. I followed the procedures from this forum to Flash / upgrade my Acer Iconia A500 on 4.0.3 ICS that was sitting in a trunk for the last few years. Summary of steps I tried out.
STEP 1: Install the Acer device drivers listed in the links in this forum on your Laptop/Computer even if by default your Windows 10 OS (assuming you are on Win10 like me) is able to recognize the A500 connected to the USB port.
USB_Acer_1.00.0524_A30HA31HA32H_A.ZIP
STEP 2: ROOTING the Acer A500.
1. The tablet should be already upgraded to stock ICS for A50x (or stock ICS A10x/A510 for other tablets).
2. On a tablet: "Settings" -> "Applications" -> "Development" -> "USB debugging" switch ON. If you do not see this menu, then click 7 times of the Android Build No. listed under settings and come back to the menu above to enable USB Debugging.
3. Connect the tablet to the computer (Before connection it is recommended to update the driver for a tablet from here: A10x, A50x, A510).
4. Since most of the discussions regarding flashing A500 were from 2011, the earlier Gingerbreak method for rooting did not work.
I downloaded the following file from this forum to root my tablet.
ICS_rooting_A10x_A5xx.zip
5. Open the directory with the unpacked archive. Execute file: for windows - runit-win.bat; for Linux - runit-linux.sh.
The root is received!
Note: The McAfee Antivirus software started tagging a file 'mempodroid' within this ZIP file Tools folder as a virus or malicious file. This rooting method uses the 'mempodroid' exploit which is detected as a VIRUS by McAfee and Qurantined. So restore from Qurantine and check list of files are still present in the folder. If not verify 8+8 files in folders again.
As per inputs in this forum, I restored the files quarantined and then suppressed McAfee SW for the duration of my upgrade activities on my laptop and was able to successfully extract all the files in the ZIP file to a local folder on the laptop. This ZIP file has adb and fastboot - two key programs useful for rooting your A500 apart from SU or superuser base file used in step 2. The file to run is the BAT file runit-win.bat if you are on windows. At the end of this step your tablet should be rooted. You may check by installing the RootCheck app from Google Playstore.
Step1a: Install a File Manager app from the Google playstore. This will help you extract the CPU ID and convert it with the SBK tool to get the SBK number/string. important steps SBK tool was available in file - SBCalc_v1.1.ZIP available in this forum.
STEP 2b: SUPERUSER and SUPERSU installation
1. Install SuperUser.apk first.. (IMP - Its available in this forum. Its like a base version for superSU to install over. If you do not install SuperUser.apk, then each time you try installing SuperSU, you would get an error message about a SU file being incompatible.)
2. Then install an older version of SuperSU downloaded from the website - filename -> eu.chainfire.supersu_v2.65-265.ZIP . Newer versions will not work. U got to install an older version as new version seems to be a paid SW.
3. Next Open SuperSU app on your tablet and let it update itself a couple of times each time opening and closing the app after the upgrade.
4. Remove SuperUser.apk file as now its no longer needed.
5. Now that you have ROOT access and SuperUSer access
6. Install Titanium Backup. File name in this forum- update-recovery-TWRP-rev2.0-beta4.ZIP . This will help you to flash/upgrade ROM software on your tablet.
Twrp 2.8:
http://www.mediafire.com/file/e7wpny5f39vw3pc/update-recovery-TWRP-rev2.0-beta4.zip/file
Compressed Archive (.ZIP)
File size: 4.91MB
Uploaded: 2018-08-14 21:40:26
https://www.mediafire.com/download/e7wpny5f39vw3pc
STEP 3: Install an Unlocked Bootloader i.e. unlocked bootloader Skrillax v9 - file name in this forum BabSector.rar or A500-Bootloader-Nvflash.ZIP
Once you have reached this step, you now have the basic tools needed for the final ROM upgrade of the tablet.
I did get error message after the reboots that happened after Unlocking the Bootloader. Someting about a LNX partition not being okay or some such msg. Each time I just WIPED the Cache and selected similar options to wipe System, Data, User, Dhelvic cache (spelling incorrect) etc. Since you have not installed the final OS or ROM for your tablet yet, no harm in deleting these partition data. Actually its recommended to wipe, format in f2f formats etc. all of which is possible using the TWRP Recovery software you installed in step 2. Choose Recovery menu option each time the tablet boots or gives errors.... using the volume rocket and power buttons. More info -> Go through this thread and install unlocked bootloader.
https://forum.xda-developers.com/showthread.php?t=1622425
Flashing Bootloader Steps
-------------------------
1. generate your SBK from cpuid
2. put tab in APX by holding reset (small pinhole bottom right side)
and pushing power for 3-4 sec. - then release reset approx 1 sec. later
the screen should be blank and power button should be lit - plug in USB to PC.
2. Run A501 A.bat - when finished reboot tab to recovery (win 7 and under
right click on A501 A.bat and select Run as Administrator)
3. run Recovery(power and volume-) ->WIPE -> "Advanced wipe ->System (only)and swipe to wipe.
4. unplug USB and reboot tab to APX
5. plug in USB afer it is in APX mode -> Run A501 B.bat (win 7 and under
right click on A501 B.bat and select Run as Administrator)
Bootloader unlock tutorial
--------------------------
Step 1: Get your cpuid - https://forum.xda-developers.com/showthread.php?t=1624645
Step 2: Convert it into an SBK - https://forum.xda-developers.com/showthread.php?t=1810618
Step 3: Download the A500 drivers
- http://www.mediafire.com/file/pde8rojv1t8gnif/USB_Acer_1.00.0524_A30H_A31H_A32H_A500_A501.zip/file
Step 4: Download the files to install the bootloader
- http://www.mediafire.com/file/o7m2ouwo6zuod4d/A500-Bootloader-Nvflash.zip/file
Step 5: Follow the instructions in "how to.txt"
Step 6: Download a rom and flash in twrp
This tutorial is based of
https://forum.xda-developers.com/showthread.php?t=2450119 thread so big thanks to KaijiKun .
Bootloader unlock files:
http://www.mediafire.com/file/o7m2ouwo6zuod4d/A500-Bootloader-Nvflash.zip/file
STEP 4. Downloaded file omni-4.4.4-20150210-a500-IconiaHD.ZIP as I was not sure version omni 5.1.1 was as stable as Omni4.4.4 reading all the threads in this forum.
First rename the downloaded OMNIROM file as update.zip .
OmniRom 4.4.4
http://www.mediafire.com/file/ghd72j3g618kk9g/OMNIROM-5.1.1-Tegraowners_ROM_v13t2.zip/file
File size: 244.66MB
Uploaded: 2015-04-05 17:40:14
STEP 5: Install another tool adb_fast.ZIP. This tool is also available in this forum.
Note:You need to copy the update.zip file to your computers folder where this tool adb_fast is installed. In mine it was C:\Program files (x86)\Minimal ADB and Fastboot folder. This adb_fast file creates an application shortcut on your computer desktop. Clicking on the short cut launches adb and fast boot programs I mentioned at the beginning.
STEP 6: Copy the file to the SD card (16GB) of your tablet.
Run the adb_fast tool from your desktop shortcut. This will open a Command Prompt type black screen window where you can enter the code as given below. Note you may need to see how your SD card is listed in a file manager in your computer
Code:
adb push update.zip /mnt/sdcard/update.zip --- NOTE: this creates mnt folder on internal storage and I had to then move the file using TWRP recovery tool installed in step 2, to the SD card.
adb push < ------- is the push command.
rom.zip < ------- is the name of the Rom zip file.
/sdcard < ------- is the location your pushing the Rom to.
E.) Reboot tablet with Power+Down Arrow i.e. This will start the Upgrade process for the tablet to OMNIROM 4.4.4
-- Power Button + UP VOLUME pressed... then release Power button after LED lights.
-- System will boot to commmand prompt
STEP 7: Install GAPPS using pico gapps short version and Wipe Data/Factory reset ----------------?>and wipe cache partition?
Reboot after 1st reboot
G.) https://opengapps.org/ to install a minimal version of Google Apps on the tablet.
File name -> pa_gapps-modular-mini-4.4.4-20150410-signed.ZIP
Root tablet again and install SuperSU if you need it
other info.
You can use TWRP to flash the OmniROM on the tablet or you can use the following in worst case senario to do the same.
Code:
fastboot devices
fastboot flash update.zip -- check if syntax is ok from threads in this forum
fastboot reboot-bootloader
copied below from other threads ---->
I find that a large amount of complaints in developer threads are due to people not properly wiping before a flash.
Of course there is times when a 'dirty' flash is fine, but if you're ever not sure, wipe as cleanly as possible.
fastboot allows for about the cleanest of wipes by the way. And each partition can be done separately too.
Code:
fastboot erase system
fastboot erase data
fastboot erase cache
can all be done individually, but to do these all in one command
Code:
fastboot erase system -w
If possible I recommend to do these steps before flashing a ROM, and now that you know you can do this all within fastboot mode i suggest to try it out, its quick and painless!
Don't forget to wipe your kernel too! (fastboot erase boot)
~Important~ If your device uses an emulated SD card (as in no removable micro SD but an SD partition on phone)
Then be careful wiping data/userdata as this will erase all contents of internal SD - you are forewarned!
ADB= Android Debugging Bridge (ADB)
[TOOL]Minimal ADB and Fastboot [2-9-18]
https://forum.xda-developers.com/showthread.php?t=2317790&page=12
First a short explanation:
Fastboot, like ADB, is a tool to communicate from PC to Android phone. There are times when it is a must to use, and times when it is just helpful.
ADB is used within your recovery or within your OS, but when you are in bootloader mode and need to communicate with your phone then you need fastboot.
And you may ask why would i ever need this?
Well many reasons. Main one is knowledge, learning the ins and outs of fastboot, like learning ADB, can get you out of many jams.
And if you want to unlock your bootloader this is done through fastboot. Granted HTC's unlock is... well crap, but for a Nexus this is how its done.
One other reason I have to stress is learning for safety reasons, This is about the safest way possible to flash firmware to your phone (ie Radio, Hboot, Recovery)
Lastly you may want to know the limitations,
There are many of course, this isnt JTAG, it will not resurrect a hard brick, but it often save peoples phones from 'soft bricks' and lots of time when know how and when to use it.
Think of fastboot as the program that takes over when ADB cant be used, it works with firmware more than software.
https://forum.xda-developers.com/showthread.php?t=1624645&page=3
GUIDES
---------------
Civs Guide to flashing the bootloader http://forum.xda-developers.com/showthread.php?t=1622425
Walkthrough using APXFLASH tool at Step 6 http://forum.xda-developers.com/showthread.php?t=1624645&page=2
From Civato's OP of The Guide: nvFlashToolPackages
Skrilax_CZ bootloader thread http://forum.xda-developers.com/showthread.php?t=1619913 and should be "required reading" for anyone mucking about in their tabs internals!!!!
Rollback to HC
jazzyjames guide http://forum.xda-developers.com/showthread.php?t=1516012
Iconia Root http://forum.xda-developers.com/showthread.php?t=1138228 /gingerbreak: For returning to Honeycomb
----------------
To get my CPUID, I have followed the steps below:
Open yr file explorer, esfile explorer is a great one....navigate to:
/sys/firmware/fuse/acer_cpuid - add a zero to the front!
To get CPUID get a Root browser of some sort and go to sys/firmware/fuse/acer_cpu_id
convert my CPUID into SBK?
--------------------------
https://forum.xda-developers.com/showthread.php?t=1055354&page=6
What Does Root Give Me?
1. Full control over your system
2. Ability to alter system files. You can replace many parts of the "Android Core" with this including:
o Themes
o Core apps (maps, calendar, clock etc)
o Recovery image
o Bootloader
o Toolbox (linux binary that lets you execute simple linux commands like "ls") can be replaced with Busybox (slightly better option)
o Boot images
o Add linux binaries
3. Run special apps that need more control over the system
o SuperUser (lets you approve or deny the use of root access to any program)
o Task Manager For Root (Lets you kill apps that you otherwise could not kill)
Tether apps (like the one found at [android-wifi-tether.googlecode.com])
4. Backup your system
o You can make a folder on your SDCARD and backup all of your .APK files to your SDCARD (helps if an author decides to "upgrade" you to a version that requires you to pay to use the version you just had)
5. Relocate your (browser/maps/market) cache to your /sdcard
6. Relocate your installed applications to your /sdcard
7. Reboot your phone from the terminal app easily (su <enter> reboot <enter>)
Turn the rotation lock off.
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SUMMARY - Regardless of version, rooting is the same... next
** Unlock the bootloader.
** Fastboot flash a Custom Recovery (TWRP).
** Download to the Tablet, Chainfire's SuperSU root updater .zip
** Boot into the previously fastboot flashed Custom Recovery, and flash the SuperSU updater .zip.
** Reboot - you're rooted.
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PS. I tried to maintain a log in Notepad during my upgrade. Unfortunately did not write detailed instructions and link to required files. Above is a summary of what worked for me.

Can not root
sukasis said:
First my thanks to the forum key members for providing answers to queries and to all the key contributors of SW/ROMS in this forum. I followed the procedures from this forum to Flash / upgrade my Acer Iconia A500 on 4.0.3 ICS that was sitting in a trunk for the last few years. Summary of steps I tried out.
STEP 1: Install the Acer device drivers listed in the links in this forum on your Laptop/Computer even if by default your Windows 10 OS (assuming you are on Win10 like me) is able to recognize the A500 connected to the USB port.
USB_Acer_1.00.0524_A30HA31HA32H_A.ZIP
STEP 2: ROOTING the Acer A500.
1. The tablet should be already upgraded to stock ICS for A50x (or stock ICS A10x/A510 for other tablets).
2. On a tablet: "Settings" -> "Applications" -> "Development" -> "USB debugging" switch ON. If you do not see this menu, then click 7 times of the Android Build No. listed under settings and come back to the menu above to enable USB Debugging.
3. Connect the tablet to the computer (Before connection it is recommended to update the driver for a tablet from here: A10x, A50x, A510).
4. Since most of the discussions regarding flashing A500 were from 2011, the earlier Gingerbreak method for rooting did not work.
I downloaded the following file from this forum to root my tablet.
ICS_rooting_A10x_A5xx.zip
5. Open the directory with the unpacked archive. Execute file: for windows - runit-win.bat; for Linux - runit-linux.sh.
The root is received!
Note: The McAfee Antivirus software started tagging a file 'mempodroid' within this ZIP file Tools folder as a virus or malicious file. This rooting method uses the 'mempodroid' exploit which is detected as a VIRUS by McAfee and Qurantined. So restore from Qurantine and check list of files are still present in the folder. If not verify 8+8 files in folders again.
As per inputs in this forum, I restored the files quarantined and then suppressed McAfee SW for the duration of my upgrade activities on my laptop and was able to successfully extract all the files in the ZIP file to a local folder on the laptop. This ZIP file has adb and fastboot - two key programs useful for rooting your A500 apart from SU or superuser base file used in step 2. The file to run is the BAT file runit-win.bat if you are on windows. At the end of this step your tablet should be rooted. You may check by installing the RootCheck app from Google Playstore.
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Click to expand...
Click to collapse
Hi sukasis, i was unable to root the tablet. I download all and run the runit.win.bat (trying normal, as admin, and open a cmd as admin and then navigate to the bat to execute).
- It say device connected
- Then push 7 files correctly
- Executing of the main script. (it freeze here a lot of time)
Then error: protocol fault (no status)
The file "su" isn't created
Not getting root!
I try in USB 3.0 and 2.0 same error.
I have windows 10.
I uncheck the Debugging mode and it's bring another error, so i believe the connection is good because in debug mode can push files.
I don't know whate else i can do.

[NOOBIEST GUIDE]INSTALL ALL REQUIRED DRIVERS AND FULL STOCK ROM+Little tip

So this is a guide for quick full stock installation which is fully compatible with your device
Warning:All of your data will be gone
REQUIREMENTS:A PC A MICRO SD CARD AND A WORKING DATA CABLE
Step One: Download and install Lenovo Moto Smart Assistant
Step 2: go under "Flash" option and then rescue and select the product you are using now choose the model and also select your hw code which i found under battery i dont know yours, and then wait for download.
Step 3:Enable usb debugging and then open cmd and use this command "adb reboot edl" without double quotation marks ofc
Step 4roceed and press ok to all of em
Additional process (follow steps with "a.") OTA installation (i will guide on windows)
a.1Open your explorer and then ur hard drive C: at the top you will see file etc. come to view which is 4th from left and then tick show hidden files (i am using windows Turkish so trying to translate)
a.2:Go ProgramData/LMSA/Download/CountryCodeFiles/a6020xxx____yyy/now choose the file with Country.ota.zip
a.3:Now you can sideload the file (go recovery and then select apply update from ADB)or you can copy it to your sd card and use "Apply update from Sd" using stock recovery and apply it.
AND CONGRATULATIONS! you are now on stock rom with all compatible drivers installed on your drive!
Also this is to everyone, a quick tip:if you cant reboot to download mode which you can do on cmd, you can go to fastboot mode first (Voldown+power)and then keep pressing on VolUp+VolDown+Power (keep doing until you see a whole black or a glowing screen)