Help, fastboot can't recognize device - Nexus 10 Q&A, Help & Troubleshooting

Hi there,
I've tried root my Nexus 10 today, I've unlocked the bootloader first, then use the fastboot root the device.
However, when I reboot the device, it was stuck on the symbol "X".
I thought it might something wrong, so I try to flush the 4.2.2 ROM from Google.
When I using the fastboot flush the system.img, it got an error, so I terminate it.
After I reboot the device, my computer can't recognize the device anymore.
Currently my Nexus 10 can still get the fastboot mode, the only problem is that fastboot and adb both can't see my device on my computer.
I tried on Mac and Windows 8, same result..
Help! Any suggestions?
Thanks.
Update:
I change another cable which I use on my kindle, then every thing goes well...
Thanks

Related

Need Help Unbricking Nexus 7

The problem is I can't unbrick and restore my nexus to stock rom.
I can't boot the device and I'm only able to boot to bootloader. However, my computer doesn't recognize the nexus. It keeps saying Window cannot recognize it whenever I plug my tablet to the computer in bootloader. I tried uninstall and reinstall driver several times, but none of them seems to work . ----> That means I can't even use adb to restore the phone simply because my tablet is not recognized in window.
Is there anyway to fix this problem? I really need your helps as soon as possible.
Thank you for reading !
Get to bootloader. Then use Wugs toolkit, open advanced options. On the very left is something like "temp boot to recovery". Once that boots it to recovery, ADB should work. It did for me. I was in some trouble last night and got out by this. If you know how to use adb/fastboot commands, you should be good. And I uninstalled my drivers and when I plugged it in the device automagically reloaded the drivers. But you have to do it a few times. Had to do it in bootloader, recovery, and another point. Anytime it asks to load drivers/etc do it.
I can't boot to recovery through Wug Tool Kit. It keeps saying Fastboot device was not found >"<
By the way, whenever I connnected my device to computer, the bootloader freezes :|
What were you doing before you go into this situation?
I was on Glazed Jelly Bean rom and wanted to go back to stock rom. I used nexus 7 toolkit to do all the work for me. However, there was something wrong like the toolkit didnt extract the stock img right or something like that, my tablet got bootloop, and what happened next was what i had been telling you guys.
Best bet is if somehow you could get into recovery or get adb working. Might want to uninstall drivers and install again and reboot computer. I would suggest using this thread and flash things manually back to stock. http://forum.xda-developers.com/showthread.php?t=1907796 but you would need adb working.
When you power off device and use volume and power can you get it to go into boot loader then plugged into computer try to get to recovery or adb.
Consider deleting the drivers from Windows after uninstalling them otherwise Windows may try to be "clever" and reinstall the bad driver when you plug the device in. The Nexus 7 drivers from Asus can be downloaded here and Google's USB drivers are here
Travisdroidx2 said:
Best bet is if somehow you could get into recovery or get adb working. Might want to uninstall drivers and install again and reboot computer. I would suggest using this thread and flash things manually back to stock. http://forum.xda-developers.com/showthread.php?t=1907796 but you would need adb working.
When you power off device and use volume and power can you get it to go into boot loader then plugged into computer try to get to recovery or adb.
Click to expand...
Click to collapse
What if I couldn't get adb working?
I tried everything and windows still doesn't recognize my device in fastboot
Have you tried Nexus Root Toolkit v .1.5.4?
kiddo94 said:
I tried everything and windows still doesn't recognize my device in fastboot
Click to expand...
Click to collapse
try connecting to the usb port at the back of your computer
Paranoid flashed with the bricked kernel did this to me once right after the move to 4.1.2. Even with a full wipe and all the usual safety precautions it just stuck on bootloop forever and wouldn't let me in. I chalked it up as that's what I get for being the guy that's never satisfied with stock. I was unable to get my nexus7 fixed. I sent you a suggestion on pm though.
Never mind everyone. Thank you so much for your help.
I tried install the nexus 7's driver on another computer and it recognized my device in bootloader mode, and restore everything back to stock now. Thank you so much!!!!
Mine did that to the first time I tried. After I got it to work, the permissions were all messed up and I could not get it to download anything off the web and I was getting a playstore error 90% of the time as well. I finally just wiped everything on my tablet, installed the stock rom via N7 toolkit, then reflashed smooth rom, and all is working now. It may have been a bug with the older version of N7 toolkit, as I updated it before I reran everything.

Bricked nexus 7 please read!

Hi,
I. Have gotten myself into quit a frustrating situation. My nexus 7 was unlocked, rooted and had several different custom roms installed at various times and had never had a problem. But then one time in particular, when trying to flash a rom (which I can't even remember which one it was,) after the rom had "successfully" been flashed, it rebooted to the splash screen, which it stayed at for a very long time; before just turning into a series of flashing vertical lines that never end. I can use the power+vol- method to get to fastboot, but not recovery; it would appear that my recovery has been wiped as I get the same google splash screen loop as when I try to boot. My problem is that nothing I do allows me to successfully connect the device to my pc (w7, 32bit.)
I have uninstalled any conflicting drivers, un/re-installed the proper drivers from like 7 different guides, I have also tried two different nexus root toolkits. I even tried to use a Linux machine to no avail. I have switched USB cables, everything I have tried has not worked. This is by no means my first foray into android devices, I even freshly installed my android SDK and still my computer just fails to recognize the nexus 7 in fastboot mode.
Any tips or advice would be a godsend. Thanks.
This sounds like a issue a few people have been having.. As far as i know as of a week ago there is no solution . You need to flash the boot-loader it sounds like. There is a thread about this. Search for NV FLASH .. OR APX MODE. Sorry for being lazy and not looking for the thread for you..
They may have some things in that thread that you have not tried.
Turn your Nexus off and plug it into your computer. Does your Nexus start charging? A completely bricked Nexus wouldn't charge. If it starts charging, then try turning it on into Fastboot mode.
Sorry, I'm no dev. Just a random thought to try. But if your Nexus can charge you shouldn't be fully bricked, hopefully. At least this is what I think.
When you say your computer fails to recognise the device...
If you open your device manager in Windows and then plug in the nexus 7 in fastboot mode, what happens? Does it show up in the device manager in any category? Even with a yellow exclamation mark or as unknown device?
Sent from my Nexus 7 using Tapatalk 2
My bro bricked his N7
He was rooted and unlocked, flashed a rom now it bootloops on the logo. Now when doing adb devices, it doesnt detect the device when in bootloader, went to device manager and shows problem with driver. Tried other drivers but says its up to date. Thing is I just upgared his friends N7 with the same drivers so I know thats not a problem.
It wont go into recovery either. Now when it is bootlooping, the decive is recognised when doing adb devices. So can I flash a factory image when it is bootlooping or does it have to be in fastboot?
TRY THIS
from powered down,
hold VOL- and POWER for ten seconds,. then let go of POWER and still hold down VOL-
dramdrum said:
When you say your computer fails to recognise the device...
If you open your device manager in Windows and then plug in the nexus 7 in fastboot mode, what happens? Does it show up in the device manager in any category? Even with a yellow exclamation mark or as unknown device?
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
it doesn't even acknowledge that I plugged anything in to the computer at all.
chismay said:
TRY THIS
from powered down,
hold VOL- and POWER for ten seconds,. then let go of POWER and still hold down VOL-
Click to expand...
Click to collapse
Just goes to bootloader?
Edit seems to be working now even though when doing adb devices in fastboot it doesnt list the device id
In fatboot mode you don't have adb access - down load a recovery image and name recovery.img
Hold shift and right click in the folder recovery.img is in
Choose open command here, in cmd type
fastboot devices
If you see your serial number proceed
fastboot flash recovery recovery.img
When finished reboot to recovery and flash rom of choice
ps, you have had to either change your path in enviromental variables to include platform-tools from the sdk or have both fastboot.exe and recovery.img in the same folder that cmd is pointed to
Sent from my HTC Vision using xda premium

Soft Bricked Nexus, fastboot/bootloader non-responsive

So I managed to bricked Nexus last night trying to flash the factory images. It wouldn't flash correctly through the Nexus Root Toolkit, due to the outdated bootloader. I tried to install the 4.2 boot loader through recovery, (as it was flashable). It it didn't work, and I can't boot into recovery as it gets stuck on the splash screen. And of course I can do anything in fastboot because the tablet freezes when I plug in USB. Anything else I can try?
Here's some quick info.
Recovery- TWRP 2.3.3.x
Bootloader- 3.3.4
ROM- CM10.1
Sent from my Rooted Nexus 4
JiG Brick USB
JiG Brick USB might help, but i don't know for sure.
AW: Soft Bricked Nexus, fastboot/bootloader non-responsive
Are you able to boot into boot loader? If yes, you are not bricked. You can flash the factory image and you can flash a new recovery.
Sent from my Nexus 7 using xda app-developers app
So I got back from school today and tried to turn it back on again, and it decided to boot up normally.
This is happening to me. I can boot the Nexus into Fastboot, but as soon as you plug in a USB it freezes and any commands sent from the PC receive only "awaiting device" in response. I can't boot into recovery, it just stays on the Google splash screen and unfortunately the ROM I was trying to install didn't work. Any advice?
Ethicistabdiel said:
This is happening to me. I can boot the Nexus into Fastboot, but as soon as you plug in a USB it freezes and any commands sent from the PC receive only "awaiting device" in response. I can't boot into recovery, it just stays on the Google splash screen and unfortunately the ROM I was trying to install didn't work. Any advice?
Click to expand...
Click to collapse
Could you please describe a bit in more details what you are doing nd what is freezing?
If you are in bootloader mode, you can send only fastboot commands to your device, nothing else, so I am wondering what is freezing ...
AndDiSa said:
Could you please describe a bit in more details what you are doing nd what is freezing?
If you are in bootloader mode, you can send only fastboot commands to your device, nothing else, so I am wondering what is freezing ...
Click to expand...
Click to collapse
What I mean is that as soon as the USB is plugged in, the bootloader on the Nexus becomes completely unresponsive, I can no longer use the volume buttons to navigate the options or the power button to progress. It appears for all intents and purposes frozen and remains so after the USB is unplugged. Commands sent from ADB while the Nexus is in the bootloader just say "awaiting device" and nothing happens and I can't see the Nexus with ADB Devices.
I may not be using the best terms, I'm assuming the bootloader is the screen where you are given the options of recovery, restart the bootloader, start and so on. That screen becomes completely frozen when the usb cable is plugged in. If I select for it to go to recovery and do not plug in the USB cable, it goes to the google splash screen and the recovery never loads. I've had this Nexus fully rommed before, it has Clockwork Mod Recovery Manager on it and I've had no trouble getting it to load previously.
I'm doing all this because I tried to install a new rom (Paranoid Android Nightlies, latest version) and it did not install properly, upon start it says gapps has stopped and the setup wizard has stopped working - the OS will not load but will just keep repeating these error messages. Thus, I'm trying to either get into recovery or send ADB commands to the tablet to fix it.
AW: Soft Bricked Nexus, fastboot/bootloader non-responsive
1.) When you are in boot loader, adb will not be able to connect to your device, you need to use fastboot instead. This command is part of the SDK and can be called from the command line. Eventually you need to add the directory containing the fastboot executable to your path.
2.) That the buttons do not respond any longer after plugging to USB is very strange.
- What bootloader version is installed on your device?
- What does fastboot devices print on the screen?
- Did you try already with a different USB-port / cable?
Sent from my Nexus 7 using xda app-developers app
AndDiSa said:
1.) When you are in boot loader, adb will not be able to connect to your device, you need to use fastboot instead. This command is part of the SDK and can be called from the command line. Eventually you need to add the directory containing the fastboot executable to your path.
2.) That the buttons do not respond any longer after plugging to USB is very strange.
- What bootloader version is installed on your device?
- What does fastboot devices print on the screen?
- Did you try already with a different USB-port / cable?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
All fixed now. It was actually the computer, an issue with the USB, did it on my laptop and was able to fix it pretty quickly. It was you differentiating Fastboot from ADB that got me there though, I tried that on my PC and when it didn't work I then did it on the laptop. Most likely wouldn't have gotten there without you, at least not so quickly. Thank you very much!

[Q] Nexus 7 can't boot or restore

I made the dumb mistake today of flashing my Nexus 7 with the wrong gapps and as a result setup would continuously crash.
I first tried to reboot into recovery by entering fastboot mode (power + volume buttons) but all i got was the google logo for all eternity
next I tried reverting to stock with the nexus 7 rootkit but it always failed on the fastboot check saying my device could not be detected.
Assuming my drivers were not working correctly I manually installed the google usb drivers and at this point if I look in the device manager I see Android device > Android Bootloader Interface but if I run the adb devices command I get nothing.
I feel like I'm at the end of my rope here so I could use any suggestions.
p.s. usb debugging is not enabled because I had just done a factory reset and I can't enable it because I can't really access anthing after booting up.
solved
Ok so after installing the google driver I decided to give the root tool and leaving my nexus 7 plugged in for a while I noticed that the fastboot screen was no longer frozen and decided to try the rootkit again and this time it worked like a charm so problem solved!!!
I guess I couldn't detect it with adb because usb debugging wasn't enabled but the rootkit was still able to restore it using the fastboot method.

H E L P - bootlooping, COM does not recognize phone

Hi everybody,
ill try to make it short:
My 6p has entered into the bootlooping mode.
I have never unlocked the bootloader/changed ROM/kernal.
After I let it bootloop until the battery is dead it's changing from bootlooping into blinking red dot. Then when I charge it for a couple of minutes it comes back to life after 10~ min it's bootlooping again - so I have a window of possibilities to play with the setting. In that window I have used the "OEM unlocking" option.
In the bootlooping state when I boot into the bootloader and connect it into the PC the device doesn't recognize that it has been connected and a PC ,and the PC recognize a entry of new device but doesn't recognize it is a Nexus 6p.
this situation is the same when I connect the phone when it is alive.
I have installed adb and fastboot with this software
https://forum.xda-developers.com/showthread.php?t=2588979
with the 1.4.3 version it shows in the end of the process "0 files copied" and then I tried the 1.3 version and it showed that 4 files were copied but it also showed an error.
I have also downloaded ADB from google site but it does not work either.
When I try to open the powershell in a folder where I have downloaded an img and type in a fastboot command the computer doens't recognize any type of command.
So if anyone can help me ill be glad.
Thanks in advance,
Matan.
matan4442 said:
Hi everybody,
ill try to make it short:
My 6p has entered into the bootlooping mode.
I have never unlocked the bootloader/changed ROM/kernal.
After I let it bootloop until the battery is dead it's changing from bootlooping into blinking red dot. Then when I charge it for a couple of minutes it comes back to life after 10~ min it's bootlooping again - so I have a window of possibilities to play with the setting. In that window I have used the "OEM unlocking" option.
In the bootlooping state when I boot into the bootloader and connect it into the PC the device doesn't recognize that it has been connected and a PC ,and the PC recognize a entry of new device but doesn't recognize it is a Nexus 6p. Matan.
Click to expand...
Click to collapse
What is the new device identified as....Qualcomm HS-USB QDLoader 9008? Your phone may be stuck in EDL mode. If that is the case you need to search XDA and attempt solutions for that problem first.
Did you previously have your PC setup properly with the correct USB drivers and it was working OK, or just now trying to get your dead phone to communicate? If the former it may be the EDL issue above. If it was the latter, the communication problem may just be the drivers were never set up in the first place. Have you tried a different cable or port on your PC, or another PC?
With no access to the OS you will be unable unlock the bootloader or access to ADB because those have to be enabled FIRST in the OS, so there's no helping you here until you can actually boot into the OS. Do you have access to Recovery mode? Tried a factory reset? If you don't have recovery, that was a major omission.

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