[Q]Manually updated to 4.2.2... Now locked out of adb and recovery. Help. - Nexus 4 Q&A, Help & Troubleshooting

I'm in a bit of jam. I flashed the official zip from google to update to 4.2.2 and the flash seemed to work fine. I cleared both caches after the update
However, now I seem to be completely locked out of adb and the phone doesn't prompt me for authorization (the new feature in 4.2.2) http://www.androidpolice.com/2013/0...s-from-stealing-your-data-in-some-situations/ . I am showing connected but offline just like this article. I have tried multiple reboots (phone/computer) as well as different USB ports. I have not tried another computer yet.
When I try to go to recovery I get a red exclamation point dead robot as I assume the flash wiped TWRP and I can't reflash TWRP without adb/root.
I would like to try to avoid a complete internal memory factory reset from the rom which I'm not sure would work anyway.
Please help.

update your adb / sdk.

bodh said:
update your adb / sdk.
Click to expand...
Click to collapse
Fortunately, I was able to reflash TWRP using fastboot w/o using adb. At the bootloader, I ran
Code:
fastboot flash recovery recovery.img
which got my recovery back up and running.
I decided to do a factory wipe and even after that adb was showing as offline and not prompting. I am very confident that your suggestion of updating the platform tools is going to fix my issue.
Thank you.

Locked on 4.2.2
My Nexus 7 is locked on 4.2.2. I tried to Unlock with Nexus Root Toolkit and I get "adb offline". I did the command "adb devices" and the device showed up, but when I tried to unlock again, it gets stuck on "checking adb status". I updated SDK and copied the new adb.exe, fastboot.exe, etc into the platform-tools folder and it still doesnt work. So basically my oem is locked on 4.2.2 and I can get adb or the toolkit to work properly.. Is there a way to downgrade back to 4.2.1 or get the Wugfresh Nexus Toolkit to actually unlock my Nexus 7 on 4.2.2??

Yea, there's a way to downgrade if you have a nandroid and know what you're doing. The toolkit will need to be updated, and it helps to know how to do it manually first.

bodh said:
Yea, there's a way to downgrade if you have a nandroid and know what you're doing. The toolkit will need to be updated, and it helps to know how to do it manually first.
Click to expand...
Click to collapse
If you know the steps or can link me to a page, that would be much appreciated. I want clear steps.

Basically the same thing just happened to me. I updated to the newest android sdk then followed the steps here http://forum.xda-developers.com/showthread.php?t=2010312
I had to restore the complete stock image first, then I sideloaded the update. I made sure all of my files were in C:\Development\sdk\platform-tools (thats the directory I used, yours may be different). Open a command prompt on the platform-tools folder and run fastboot devices, if you see a number there you are good to go. Just follow the steps in the link above to flash each file.

Why cant people wait..
lol

Bronk93 said:
Basically the same thing just happened to me. I updated to the newest android sdk then followed the steps here http://forum.xda-developers.com/showthread.php?t=2010312
I had to restore the complete stock image first, then I sideloaded the update. I made sure all of my files were in C:\Development\sdk\platform-tools (thats the directory I used, yours may be different). Open a command prompt on the platform-tools folder and run fastboot devices, if you see a number there you are good to go. Just follow the steps in the link above to flash each file.
Click to expand...
Click to collapse
I'm going to try this. Can i just type "fastboot devices" in the command prompt and it'll work?
EDIT: I found a simple fix for anyone with this problem: CREATE A BACKUP FIRST, THIS WILL ERASE EVERY THING
1. Go into the platform-tools and open the command prompt by pressing Shift + Right Click.
2. Type in "adb reboot bootloader"
3. Then type in "fastboot oem unlock"
4. WALA! It'll take a while to start up, don't worry. Set up your device and that's all.

AJ Bryant said:
I'm going to try this. So would I have to copy a fastboot.exe into the platform-tools folder? Or can i just type "fastboot devices" in the command prompt and it'll work?
Click to expand...
Click to collapse
If you downloaded the new android sdk fastboot should already be in there

I found a simple fix for this problem: CREATE A BACKUP FIRST, THIS WILL ERASE EVERY THING
1. Go into the platform-tools and open the command prompt by pressing Shift + Right Click.
2. Type in "adb reboot bootloader"
3. Then type in "fastboot oem unlock"
4. WALA! It'll take a while to start up, don't worry. Set up your device and that's all.
---------- Post added at 12:05 PM ---------- Previous post was at 11:55 AM ----------
XX-RAZOR-XX said:
Why cant people wait..
lol
Click to expand...
Click to collapse
No need to wait because I found the fix, by myself.

Can't wait to get home and try this. I got stuck last night at adb offline
Sent from my Nexus 4 using xda app-developers app

But with oem unlock, you'll still be on 4.2.2. This thread should offer good info on flashing, albeit for a galaxy nexus, but it should be mostly applicable for a nexus 7. http://forum.xda-developers.com/showthread.php?t=1626895

bodh said:
But with oem unlock, you'll still be on 4.2.2. This thread should offer good info on flashing, albeit for a galaxy nexus, but it should be mostly applicable for a nexus 7. http://forum.xda-developers.com/showthread.php?t=1626895
Click to expand...
Click to collapse
That's the point; we want to be unlocked and rooted on 4.2.2. I previously thought that in order to get an unlocked and rooted Nexus, I'd have to be on 4.2.1, unlock and root, then upgrade to 4.2.2 but that's not the case. I just unlocked and rooted via ADB since the Nexus Root Toolkit wasn't working for 4.2.2. I (and probably others) kept getting the "adb offline" error even after allowing USB debugging between the device and PC. Point is, if you're on 4.2.2 with a locked bootloader, you'll need to unlock and root using ADB commands. I don't know how many people have this issue but if someone requests it, I'll just post the steps on how to unlock and root 4.2.2 jelly bean using the ADB commands.

Re: [Q]Manually updated to 4.2.2... Now locked out of adb and recovery. Help
What if I'm on 4.2.2 completely stock but with an unlocked boot loader. I get the adb offline message when I try to root using a toolkit. How would I go about rooting?
Sent from my Nexus 4 using xda app-developers app

Place su.zip on sdcard. Reboot in fastboot mode, probably volume up+down+power. In terminal on pc, fastboot boot cwm.img for your device, install zip from sdcard.

bodh said:
Place su.zip on sdcard. Reboot in fastboot mode, probably volume up+down+power. In terminal on pc, fastboot boot cwm.img for your device, install zip from sdcard.
Click to expand...
Click to collapse
What do u mean by terminal on my PC fast boot cwm.img
Sent from my Nexus 4 using xda app-developers app

Rooting Jelly Bean 4.2.2 via ADB
DowntownJeffBrown said:
What if I'm on 4.2.2 completely stock but with an unlocked boot loader. I get the adb offline message when I try to root using a toolkit. How would I go about rooting?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
1. Download the SuperSU.zip from here: http://download.chainfire.eu/282/SuperSU/CWM-SuperSU-v0.98.zip and place it on your device in the sdcard. I'm assuming you already enabled USB debugging.
2. Download the recovery-clockwork-touch-6.0.1.0-grouper.img from here: https://www.dropbox.com/s/v4hjsb4lse3dwtc/cwm6010touch_INSTALL.zip and place it in the platform-tools folder. Assuming you know where it's located on your PC
3. Locate the "platform-tools" folder on your PC, open it, and press Shift + Right Click & Open the command prompt there.
4. Type in the command "Adb reboot bootloader"
5. Then type in the command "fastboot flash recovery recovery-clockwork-touch-6.0.1.0-grouper.img"
6. Now go to Recovery Mode on your Nexus and install the CWM-SuperSU-v0.98.zip from there.
7. Reboot the device once you're done and you have a rooted Nexus 7 via adb. Hope this helps.

AJ Bryant said:
1. Download the SuperSU.zip from here: http://download.chainfire.eu/282/SuperSU/CWM-SuperSU-v0.98.zip and place it on your device in the sdcard. I'm assuming you already enabled USB debugging.
2. Download the recovery-clockwork-touch-6.0.1.0-grouper.img from here: https://www.dropbox.com/s/v4hjsb4lse3dwtc/cwm6010touch_INSTALL.zip and place it in the platform-tools folder. Assuming you know where it's located on your PC
3. Locate the "platform-tools" folder on your PC, open it, and press Shift + Right Click & Open the command prompt there.
4. Type in the command "Adb reboot bootloader"
5. Then type in the command "fastboot flash recovery recovery-clockwork-touch-6.0.1.0-grouper.img"
6. Now go to Recovery Mode on your Nexus and install the CWM-SuperSU-v0.98.zip from there.
7. Reboot the device once you're done and you have a rooted Nexus 7 via adb. Hope this helps.
Click to expand...
Click to collapse
What about for a nexus 4. Do u know where I can get that cwm?
Sent from my Nexus 4 using xda app-developers app

DowntownJeffBrown said:
What about for a nexus 4. Do u know where I can get that cwm?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
For the Nexus 4 use this cwm image instead: http://download2.clockworkmod.com/re...0.2.3-mako.img
When youre doing the fastboot recovery, put in the name of this img file at the end. "fastboot flash recovery [name of the download file].img

Related

[Q] help, no rom in my nexus 7

I Did something really stupid, I have a Nexus 7, rooted, unlocked, went to twrp and did a back up of the stock rom, it said successful, then rebooted used the rom, everything perfect but I had tablet mod on it, decided to go back to full stock, booted to recovery, wiped everything, tried to restore and my backup is not there, and I deleted the rom as well, so now I have no rom to flash and I'm stock in recovery, anyway to push a rom into the nexus in recovery or bootloader? I tried flashing it with root toolkit 1.5.5 but it doesn't find the tablet,(all the drivers are installed), any and all help is appreciated...
Your PC won't see your N7 in Android because you haven't turned on USB debugging, and probably can't now.
You should be able to push an updated TWRP in fastboot that will see your 4.2 backup. The older version can't find its backups in 4.2,as you've discovered.
I'm not the lowest of the low, but I am the slowest of the slow.
I did have it on, I can see the tablet from control panel, but when I run the kit it says adb device not found..
Sent from my EVO using xda app-developers app
The drivers will let your PC see the N7, but you have to be in USB debugging for ADB to work. You lost it when you wiped your system, as the failure of the toolkit to see the ADB proves.
I'm not the lowest of the low, but I am the slowest of the slow.
exglynco said:
The drivers will let your PC see the N7, but you have to be in USB debugging for ADB to work. You lost it when you wiped your system, as the failure of the toolkit to see the ADB proves.
I'm not the lowest of the low, but I am the slowest of the slow.
Click to expand...
Click to collapse
USB Debugging doesn't need to be on for ADB through recovery to work.. Why would it? The system isn't even on it is in recovery.
Try the toolkit in fastboot.
Sent from my Full Android on Grouper using Tapatalk 2
joshnichols189 said:
USB Debugging doesn't need to be on for ADB through recovery to work.. Why would it? The system isn't even on it is in recovery.
Try the toolkit in fastboot.
Sent from my Full Android on Grouper using Tapatalk 2
Click to expand...
Click to collapse
when I'm in the bootloader it says it's in fastboot mode, but the toolkit wont find it!
I running recovery 2.3.2.1
tried adb sideload as well and it says "cannot read sideload" any ideas? getting a little crazy here..
Can anybody give me specific commands in ADB or fast boot I'm an idiot when it comes to that, on how to try to push a ROM into the device so I can flash it from recovery, or maybe a link to where I can read about it, I would really appreciate it..
Sent from my EVO using xda app-developers app
While in recovery, type in the following:
Code:
adb push <name of ROM zip> /sdcard
You need to open a command prompt window, change directories (cd) to your Android SDK - platform tools directory, and to make things easy, move the ROM zip file into that directory as well (platform-tools that is). Then type the adb push command above.
EDIT: This puts the ROM zip on the root of your sd card (/sdcard). I have a ROM folder on my sd card, so I would type:
Code:
adb push <name of ROM zip> /sdcard/ROM
This just shows that you can push a file into a folder on your sd card.

Rooted and Unlocked, will installing CWM format my device?

following some people's tips here to understand what the hell is going on and following this:
http://www.youtube.com/watch?v=DIL1iTr5vto
i unlocked and rooted my phone, everything got deleted as expected and now i decided i might want to install CM 10.1 or another mod...
going into fastboot, navigating to "Recovery mode" and getting an error picture (android with red thing above his open chest) i realized
i do not have CWM installed...
1. no idea how to install it - since i did everything else with a tool that did everything automatically but not this, help
2. all the guides i've seen say this action too will erase my whole device..., is this true? and can it be avoided?
ty!
Flashing recovery only? Nope it does not wipe. If you wanna flash recovery:
1. Download cwm.IMG (place it where adb and fastboot is)
2. Connect the phone and reboot to fastboot mode
3. Open command prompt by holding shift and right clicking the mouse and selecting open command prompt here
4. Type "fastboot flash recovery NAME_OF_FILE.img
Sent from my Nexus 4 using xda app-developers app
kyokeun1234 said:
Flashing recovery only? Nope it does not wipe. If you wanna flash recovery:
1. Download cwm.IMG (place it where adb and fastboot is)
2. Connect the phone and reboot to fastboot mode
3. Open command prompt by holding shift and right clicking the mouse and selecting open command prompt here
4. Type "fastboot flash recovery NAME_OF_FILE.img
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Hey kyokeun1234!
first of all ty for answering.
now im gonnna have to ask you to speak slowly so i can understand fast.
1.when you say "Flashing recovery" you mean "installing a costume recovery" - it being CWM?
2. how do i find ADB and Fastboot? since i installed it using a tookit i didnt manually place them. searching ADB with my file manager found a folder called "Android_Adb" (inside it i have power and Subsystem folders) but cant find "fastboot" anywhere - or do u mean in the same folder in the PC? - yet again, i do not have these files since i used a toolkit
3-4 will do after i understand 1-2.
after i do this, when i installed a mob (lets say CM), do i than lose all my data? and if so, if i use titanium recovery, will it install all my games+saves in a functional way on the new mod?
Don't use toolkits, it's better to learn what you're doing yourself
Sent from my Galaxy Nexus using xda premium
alright u can lock this.
all i needed to do is re-root using the same toolkit but check the V for custom recovery.
TY!

Please help! Stuck on

Please help, I downloaded ChameleonOS Rom for Mako and I was on PA. I did a backup in TWRP and after I wiped data and cache I tried tp flash CHAOS ROm. It said success but it won't boot passed Google and If I try to restore PA it says failed and now I have no rom to flash to boot up and also I can't turn on debug to use ADB.
Zehlek said:
Please help, I downloaded ChameleonOS Rom for Mako and I was on PA. I did a backup in TWRP and after I wiped data and cache I tried tp flash CHAOS ROm. It said success but it won't boot passed Google and If I try to restore PA it says failed and now I have no rom to flash to boot up and also I can't turn on debug to use ADB.
Click to expand...
Click to collapse
i'm not on twrp at the moment but you may be able to try this
you may also try the nexus toolkit
Nexus 4 toolkit says device not found when trying to push file to device. It shows serial under fastboot mode but not ADB Mode. Is that because I can't turn on debug?
Zehlek said:
Nexus 4 toolkit says device not found when trying to push file to device. It shows serial under fastboot mode but not ADB Mode. Is that because I can't turn on debug?
Click to expand...
Click to collapse
hmm... can you try setting the current status to "Soft-Bricked/Bootloop" and do the Flash Stock + Unroot? might be able to get you back to square one.
if you can get into twrp you might be able to run adb commands from the recovery even if you didnt have it enabled before using the toolkit.
efan3719 said:
hmm... can you try setting the current status to "Soft-Bricked/Bootloop" and do the Flash Stock + Unroot? might be able to get you back to square one.
if you can get into twrp you might be able to run adb commands from the recovery even if you didnt have it enabled before using the toolkit.
Click to expand...
Click to collapse
That might work, how do I set the current status to "Soft-Bricked/Bootloop" and do the Flash Stock + Unroot?
Zehlek said:
That might work, how do I set the current status to "Soft-Bricked/Bootloop" and do the Flash Stock + Unroot?
Click to expand...
Click to collapse
On the main screen of the nexus tool kit there is a radio button option you can click for it.
Sent from my Nexus 4 using xda premium
not sure what you're trying to do, but if you just want to get the device up and running again..
- Download recovery with sideload
- Go into fastboot
- Use CMD to navigate to your Nexus Toolkit folder,
- Execute " fastboot flash recovery recovery.img ", assuming the image you downloaded was renamed to recovery
- Go into recovery, choose flash with sideload
- Back to CMD, type "adb-toolkit sideload *zipnamehere.zip*" , assuming your adb is named adb-toolkit
reboot, profit.
exb0 said:
not sure what you're trying to do, but if you just want to get the device up and running again..
- Download recovery with sideload
- Go into fastboot
- Use CMD to navigate to your Nexus Toolkit folder,
- Execute " fastboot flash recovery recovery.img ", assuming the image you downloaded was renamed to recovery
- Go into recovery, choose flash with sideload
- Back to CMD, type "adb-toolkit sideload *zipnamehere.zip*" , assuming your adb is named adb-toolkit
reboot, profit.
Click to expand...
Click to collapse
This guy sounds like he knows what he's doing.
Sent from my Nexus 4 using xda premium
exb0 said:
not sure what you're trying to do, but if you just want to get the device up and running again..
- Download recovery with sideload
- Go into fastboot
- Use CMD to navigate to your Nexus Toolkit folder,
- Execute " fastboot flash recovery recovery.img ", assuming the image you downloaded was renamed to recovery
- Go into recovery, choose flash with sideload
- Back to CMD, type "adb-toolkit sideload *zipnamehere.zip*" , assuming your adb is named adb-toolkit
reboot, profit.
Click to expand...
Click to collapse
It says fastboot is not recognized as an internal command
In twrp, it keeps saying starting adb sideload feature
i posted this in another thread. try this...
1. First make sure that you have fastboot driver installed.
2. Power down your Nexus 4 (hold the power button until it shuts off) before rebooting into fastboot mode. You can do this by holding down the the Volume Down and Power buttons simultaneously.
3. Connect your device to your computer. Open up a terminal or command prompt, and navigate to the folder containing the fastboot program.
4. Type fastboot devices into the command line, and you should then see your device’s ID, which means fastboot is setup correctly. if not, check to make sure Google Nexus 4 drivers are installed correctly.
5. now open Nexus 4 toolkit and Flash Google Factory stock Rom. Once you are back to stock continue on from there...
Good Luck!
Zehlek said:
It says fastboot is not recognized as an internal command
Click to expand...
Click to collapse
my bad, it's fastboot-toolkit. But since you have a recovery with sideload already, just download a rom that's working, put it in your nexus 4 toolkit folder, rename it to flash.zip, and type in CMD
"adb-toolkit sideload flash.zip"
Thank you all for your help. What I had to end up doing was extracting the factory image and flash boot, system, and use data IMG files manually with nexus 4 toolkit. My Nexus 4 is alive. Again thank you all very much
Sent from my Nexus 4 using Tapatalk 2
Zehlek said:
Thank you all for your help. What I had to end up doing was extracting the factory image and flash boot, system, and use data IMG files manually with nexus 4 toolkit. My Nexus 4 is alive. Again thank you all very much
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
Glad to here it. My heart sank when I read your issue. Happy to see it resolved.
Sent from my Nexus 4 using xda premium
efan3719 said:
Glad to here it. My heart sank when I read your issue. Happy to see it resolved.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Thank you. I was beginning to panic when I saw there nothing working that would transfer a rom to my sdcard. Again thank you for all your help
Sent from my Nexus 4 using Tapatalk 2

Nexus 4 (4.4.2) not mounting after unlocking bootloader

Nexus 4 running 4.4.2 bootloader version MAKOZ30d
I used Wug's root toolkit to unlock my bootloader but after reboot into fastboot, neither my windows 7 machine nor my linux mint machine will mount the phone without MTP turned on. I can run adb commands while MTP is on but drivers fail to load if mtp is off.. So now I have an unlocked bootloader and am unable to complete the rooting proces..
Any help is much appreciated.
Cheers!
go to settings/storage open 3dots menu /usb computer connection. if nothing is selected that is why your phone doesn't connect. select mtp an problem solved.
if it's not that i cannot help you except suggesting to reinstall android from scratch using wug toolkit.
wasabitobiko said:
Nexus 4 running 4.4.2 bootloader version MAKOZ30d
I used Wug's root toolkit to unlock my bootloader but after reboot into fastboot, neither my windows 7 machine nor my linux mint machine will mount the phone without MTP turned on. I can run adb commands while MTP is on but drivers fail to load if mtp is off.. So now I have an unlocked bootloader and am unable to complete the rooting proces..
Any help is much appreciated.
Cheers!
Click to expand...
Click to collapse
You can't "mount storage" in Fastboot mode.... what exactly are you trying to do?
acejavelin said:
You can't "mount storage" in Fastboot mode.... what exactly are you trying to do?
Click to expand...
Click to collapse
Trying to finish the rooting process by using adb.. by "mount" I mean get access in fastboot from either of my computers. Didn't have this problem with my other N4.. when I plug the phone into my computer while in fastboot and try any adb commands.. I get <waiting for device> nothing... It seems like the adb drivers aren't loading while in fastboot. I'll try to back things out using the toolkit again..
wasabitobiko said:
Trying to finish the rooting process by using adb.. by "mount" I mean get access in fastboot from either of my computers. Didn't have this problem with my other N4.. when I plug the phone into my computer while in fastboot and try any adb commands.. I get <waiting for device> nothing... It seems like the adb drivers aren't loading while in fastboot. I'll try to back things out using the toolkit again..
Click to expand...
Click to collapse
OK, so your fastboot commands are not working, that would likely be a driver issue? If you do
Code:
fastboot devices
and get a result, then keep going, if you don't, use one of the driver options in Wugfresh's toolkit, follow the instructions TO THE LETTER...
If you are just trying to get root and are unlocked, download the latest SuperSU.zip (to your phone preferably) from http://download.chainfire.eu/supersu and openrecovery-twrp-2.7.0.0-mako.img then start phone in Fastboot mode and enter:
Code:
fastboot boot openrecovery-twrp-2.7.0.0-mako.img
this will start TWRP on your device WITHOUT flashing it.
If the SuperSU zip file is on your phone, just use TWRP's Install button and navigate the file and flash it, then reboot and enjoy.
If the SuperSU zip is on your PC, then in TWRP go to Advanced, and start ADB Sideload, give it a few seconds for it to be recognized by your PC, you should be able to enter
Code:
adb devices
and get a result of SIDELOAD back, then enter:
Code:
adb sideload UPDATE-SuperSU-v1.94.zip
Or whatever the current SuperSU zip file is named. Then reboot and enjoy, your rooted!
Remember that adb commands only work in android and custom recovery NOT in fastboot mode.
Sent from my Nexus 4 using XDA Free mobile app
Ok.. If I can't run adb commands from fastboot, how do I enter that command in fastboot?
Sent from my Nexus 4 using XDA Free mobile app
wasabitobiko said:
Ok.. If I can't run adb commands from fastboot, how do I enter that command in fastboot?
Sent from my Nexus 4 using XDA Free mobile app
Click to expand...
Click to collapse
ADB sideload is a special mode that recovery can be placed into, it only allows the "sideload" command to be used. Fastboot is different, it uses the fastboot.exe program and fastboot mode on the android device to allow a limited list of features to be used.
I don't know what you are using for a rooting guide, but basically the end result is to flash SuperSU via recovery, that is all that is really needed.
Sent from my Nexus 4 using Tapatalk
Well, basically if your boot loader is unlocked and you have a custom recovery installed just download the latest superSU zip to your SD card. Reboot into recovery, install SuperSU, reboot. Alas, you're rooted.
Sent from my Nexus 4 using XDA Free mobile app
That's the problem.. No custom recovery installed.. Still working on the driver issue.
Sent from my Nexus 4 using XDA Free mobile app
wasabitobiko said:
That's the problem.. No custom recovery installed.. Still working on the driver issue.
Sent from my Nexus 4 using XDA Free mobile app
Click to expand...
Click to collapse
If you unlocked your bootloader your drivers should be working fine. If you rebooted your phone now you'd see it works fine. Next step in rooting is to flash custom recovery. Download a custom recovery, I recommend latest version of TWRP, then flash the recovery image. 'fastboot flash recovery recovery.img' (replace recovery.img with whatever .img file you are flashing.
Once custom recovery is installed you can boot into it to flash supersu. If using TWRP it will prompt you to root when you reboot it.
Thanks.. And please don't take offense to this but re-read the thread. Ever since I used wug's rootkit to unlock the bootloader, neither my pc nor linux machine will recognize the Nexus 4. When I plug it in I get a usb error "device failed to load".. When I look at the device mgr it's listed as unknown device. Btw.. I've restarted both my phone and machine multiple times to no avail.
Sent from my Nexus 4 using XDA Free mobile app
Unknown device? Youve probably installed no or wrong fastboot drivers.
Sent from my Nexus 4 using XDA Free mobile app
wasabitobiko said:
That's the problem.. No custom recovery installed.. Still working on the driver issue.
Sent from my Nexus 4 using XDA Free mobile app
Click to expand...
Click to collapse
Google tool 15 second adb xda
Sent from my Nexus 5 using XDA Free mobile app
UPDATE: It looks like the micro usb port on the phone is fried... had been charging fine until today. I'll keep you posted. Thanks for all the help. Does anyone know if this is a relatively easy fix?
Update: Fixed..
Replacing the usb port on the Nexus 4 is super easy. Thanks for the help guys. Everything's working and root has been achieved.

Help getting back from 5.x.x (lollichop)to older versions because it kills my tablet!

Hello! I have a very bad problem! After the new updates Nexus 7 (first get I think 2012) it's supper laggy and the battery discharges very quick! I would like if someone could tell me how to install the kitkat or jellybean firmware on my nexus 7
I already found this site: developers.google.com/android/nexus/images but I don't really understand how to install it. I and I may also want root on it
Note: I am not new to this because I already rooted my phone.
Please help me!
adih2001 said:
Hello! I have a very bad problem! After the new updates Nexus 7 (first get I think 2012) it's supper laggy and the battery discharges very quick! I would like if someone could tell me how to install the kitkat or jellybean firmware on my nexus 7
I already found this site: developers.google.com/android/nexus/images but I don't really understand how to install it. I and I may also want root on it
Note: I am not new to this because I already rooted my phone.
Please help me!
Click to expand...
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Hi, first, download the factory image for 4.4.4 kitkat.
Enable developer options on your tablet by going to settings>about tablet and tapping on build number 7 times. Then press back and enter developer options. In dev. options, enable USB debugging.
Install this on your PC:
http://forum.xda-developers.com/showthread.php?t=2588979
Now connect your tablet to your PC and open a command prompt window. Type "adb devices" (without quotes) and see if your device serial number shows up. If it does, type "adb reboot-bootloader" (again, without quotes). If your tablet reboots to bootloader, then type "fastboot devices" in command prompt. Again, if your device serial number shows up, you're good to go.
Remember, unlocking the bootloader will wipe all your data so backup anything you don't want to lose.
Now, from command prompt, type "fastboot oem unlock"
When it finishes, type "fastboot reboot"
After it boots up, just power it off and then hold power and volume down until it boots to bootloader again. Navigate to the factory image you downloaded, unzip with 7zip or another file extractor and click on the flash-all bat file. It will auto run from here.
Good luck!
Evolution_Tech said:
Hi, first, download the factory image for 4.4.4 kitkat.
Enable developer options on your tablet by going to settings>about tablet and tapping on build number 7 times. Then press back and enter developer options. In dev. options, enable USB debugging.
Install this on your PC:
http://forum.xda-developers.com/showthread.php?t=2588979
Now connect your tablet to your PC and open a command prompt window. Type "adb devices" (without quotes) and see if your device serial number shows up. If it does, type "adb reboot-bootloader" (again, without quotes). If your tablet reboots to bootloader, then type "fastboot devices" in command prompt. Again, if your device serial number shows up, you're good to go.
Remember, unlocking the bootloader will wipe all your data so backup anything you don't want to lose.
Now, from command prompt, type "fastboot oem unlock"
When it finishes, type "fastboot reboot"
After it boots up, just power it off and then hold power and volume down until it boots to bootloader again. Navigate to the factory image you downloaded, unzip with 7zip or another file extractor and click on the flash-all bat file. It will auto run from here.
Good luck!
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Afet all thoose steps how I add root? or I need other custom firmware for that?
adih2001 said:
Afet all thoose steps how I add root? or I need other custom firmware for that?
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Have you tried doing a factory reset on your nexus 7? That might fix any problems you're having with lollipop otherwise try the excellent Nexus root toolkit by wugfresh good luck.
adih2001 said:
Afet all thoose steps how I add root? or I need other custom firmware for that?
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Flash TWRP recovery from fastboot. Download TWRP recovery for grouper then from fastboot type "fastboot flash recovery (name of) recovery.img
Then download SuperSU zip and flash in TWRP.
When it doesn't work I will buy your "broken" tablet. Pm me.
fwayfarer said:
When it doesn't work I will buy your "broken" tablet. Pm me.
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When what doesn't work? ??? You'd rather have someone use a toolkit and learn nothing as opposed to learning how to do it the right way? There's no need for toolkits on a nexus.
Evolution_Tech said:
When what doesn't work? ??? You'd rather have someone use a toolkit and learn nothing as opposed to learning how to do it the right way? There's no need for toolkits on a nexus.
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When the OP fails to follow instructions exactly, does not set up a daily fstrim, and still has lag. I didn't say anything about toolkits.
Evolution_Tech said:
When what doesn't work? ??? You'd rather have someone use a toolkit and learn nothing as opposed to learning how to do it the right way? There's no need for toolkits on a nexus.
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Hey don't confuse me with fwayfarer I'm only trying to help
fwayfarer said:
When the OP fails to follow instructions exactly, does not set up a daily fstrim, and still has lag. I didn't say anything about toolkits.
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My apologies. I'm a tad bit grumpy today.
Evolution_Tech said:
Flash TWRP recovery from fastboot. Download TWRP recovery for grouper then from fastboot type "fastboot flash recovery (name of) recovery.img
Then download SuperSU zip and flash in TWRP.
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Will TWRP recovery work and supersu with the new flashed version of android? (4.4.4) Can you pls give me a link for TWRP recovery and supersu for nexus 7 2012?

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