[Q] Stuck at Google logo AND system recovery AND oem locked - Nexus 7 Q&A, Help & Troubleshooting

Please tell me there's a solution to this..!
My N7 2013 had always been fine, and I liked stock android very much, thus saw no need to unlock the bootloader. When the 5.1 OTA came, I updated my N7 and it started crashing and restarting on its own. One day, it restarted again and got stuck at the Google screen.
Of course the first thing I did was to get the Nexus Root Toolkit, and tried flashing stock rom. Of course it didn't work since it was oem locked. When I tried to unlock the bootloader, I was prompted with the screen asking if I want to unlock and wipe all data. I selected unlock and pressed the power button. Then it froze (I left it for 8 hours, plugged in to a power outlet).
The next logical thing to do was to start recovery mode in the fastboot to do a factory reset, except it simply switched to the Google screen and was stuck there.
TL;DR
Normal startup: Stuck at google screen.
Unlock bootloader: Stuck at selection.
Recovery mode: Stuck at google screen.
I'm pretty desperate now, that's why I'm posting here. Sorry if it's the wrong category or something. I've read many articles, but it's always ONE of the THREE issues I have. They often refer to using a method that involves an area where it's affected by the other problems.
Please help me, I don't want to see $250 down the drain

Have you tried using Nexus Root Toolkit to unbrick the tablet? There is an unbrick section and one of the options says something like "Soft brick/bootloop". Try that option.

Fobos531 said:
Have you tried using Nexus Root Toolkit to unbrick the tablet? There is an unbrick section and one of the options says something like "Soft brick/bootloop". Try that option.
Click to expand...
Click to collapse
I have! I saw the option when I opened NRT, and went straight for it. Here's what I did:
Checked "soft-bricked/Bootloop" option under "flash stock + unroot"
Downloaded the correct factory image
Checked "Force flash mode" (unchecked doesn't work either)
The command box came up (please see attachment)
It kept saying that the operation failed because the bootloader was locked. When I tried to unlock the bootloader, it was stuck at the selection screen after I press the power button to select "unlock bootloader".
Note: It's stuck at "erasing cache". Left it on for 2 hours.

Panpaper said:
I have! I saw the option when I opened NRT, and went straight for it. Here's what I did:
Checked "soft-bricked/Bootloop" option under "flash stock + unroot"
Downloaded the correct factory image
Checked "Force flash mode" (unchecked doesn't work either)
The command box came up (please see attachment)
It kept saying that the operation failed because the bootloader was locked. When I tried to unlock the bootloader, it was stuck at the selection screen after I press the power button to select "unlock bootloader".
Note: It's stuck at "erasing cache". Left it on for 2 hours.
Click to expand...
Click to collapse
Hook it up to your PC, open a command line to wherever you have fastboot.exe at, plug in your device to the pc, boot your device into fastboot by hand (with device off, hold down power+volume down), once it's in fastboot mode, do a: fastboot devices, what comes up?

mdamaged said:
Hook it up to your PC, open a command line to wherever you have fastboot.exe at, plug in your device to the pc, boot your device into fastboot by hand (with device off, hold down power+volume down), once it's in fastboot mode, do a: fastboot devices, what comes up?
Click to expand...
Click to collapse
Thanks for the reply!
It says 07c17e46 fastboot
(image attached)

Panpaper said:
Thanks for the reply!
It says 07c17e46 fastboot
(image attached)
Click to expand...
Click to collapse
From that point, do a: fastboot oem unlock (it will wipe the entire device (i.e. user data), if it works)
Then look at the tablet and you should see a confirmation screen, do you? If so follow it and wait some time, took mine about 12 minutes IIRC, but mine was a nexus 7 2013 not a 2012, so YMMV.
If nothing happens post a screenshot of errors, etc from cmd prompt.

mdamaged said:
From that point, do a: fastboot oem unlock (it will wipe the entire device (i.e. user data), if it works)
Then look at the tablet and you should see a confirmation screen, do you? If so follow it and wait some time, took mine about 12 minutes IIRC, but mine was a nexus 7 2013 not a 2012, so YMMV.
If nothing happens post a screenshot of errors, etc from cmd prompt.
Click to expand...
Click to collapse
It's been an hour and a half, and it's still at "erasing userdata". Mine is a nexus 7 2013 too, is it supposed to take that long?

Panpaper said:
It's been an hour and a half, and it's still at "erasing userdata". Mine is a nexus 7 2013 too, is it supposed to take that long?
Click to expand...
Click to collapse
How long it takes differs, but it certainly should be done within 20-30 mins. Not sure where to go from here, will do a little looking around and get back to this thread.
FYI, you might want to know you are in the Nexus 7 2012 forum. You may want to self-report your OP as a maintenance request and have it moved to the Nexus 7 2013 forum.
And with that thought, make sure in future, that within wugfresh tool, you are selecting the right image, as if you try and use the N7 2012 one you may have issues.

mdamaged said:
Oh well, then you might want to know you are in the Nexus 7 2012 forum. Anyhow, how long it takes differs, but it certainly should be done within 20-30 mins.
Click to expand...
Click to collapse
Oh, sorry I didn't know that! First post.
I'll leave it running for the day and see what happens then. Thank you!

mdamaged said:
How long it takes differs, but it certainly should be done within 20-30 mins. Not sure where to go from here, will do a little looking around and get back to this thread.
FYI, you might want to know you are in the Nexus 7 2012 forum. You may want to self-report your OP as a maintenance request and have it moved to the Nexus 7 2013 forum.
And with that thought, make sure in future, that within wugfresh tool, you are selecting the right image, as if you try and use the N7 2012 one you may have issues.
Click to expand...
Click to collapse
Sorry to trouble you again. I don't know if the userdata erasing is done, but I got this (screenshot). The tablet is still frozen in the selection screen (highlighted "Yes, unlock bootloader").
I shut it down and started it into fastboot again. Under LOCK STATE it's still locked.

Panpaper said:
Sorry to trouble you again. I don't know if the userdata erasing is done, but I got this (screenshot). The tablet is still frozen in the selection screen (highlighted "Yes, unlock bootloader").
I shut it down and started it into fastboot again. Under LOCK STATE it's still locked.
Click to expand...
Click to collapse
I'm suspecting it could be a bad usb port or bad usb cable. i.e. try a different pc, or a different usb cable and different usb port, also never use a USB hubs port. It also could be a dirty usb port on the device too.

mdamaged said:
I'm suspecting it could be a bad usb port or bad usb cable. i.e. try a different pc, or a different usb cable and different usb port, also never use a USB hubs port. It also could be a dirty usb port on the device too.
Click to expand...
Click to collapse
I tried a different USB port, and also on a different laptop, but nothing seems to work. It seems to be stuck at "erasing userdata". I tried fastboot -w too, but it just stayed at "erasing userdata" for over an hour.
I'll get a new USB cable whenever I can, and try this again. Thanks for all the help so far!
I can't believe an official OTA update would cause so much damage. SIgh.

mdamaged said:
I'm suspecting it could be a bad usb port or bad usb cable. i.e. try a different pc, or a different usb cable and different usb port, also never use a USB hubs port. It also could be a dirty usb port on the device too.
Click to expand...
Click to collapse
So apparently I'm not the only one with this problem.
http://www.androidpolice.com/2015/0...rate-not-likely-a-result-of-firmware-updates/
I used my Nexus 5 original USB cable to do it, and the same problem has occurred.
I feel like I'm running out of options and seriously losing hope. I know it'll probably be better to leave the device on its own and wait for some kind of fix in the future, but I'd also like to know if there are any other way other than sending it in for repair (I rather buy a new tablet).

Related

got a bricked N1...

some guy successfully bricked his N1 as soon as he received it about 2 months ago. When this expensive brick reached my hand, he didn't even remember what he had done... and this brick had been through many many ppl for repair, so there is no way for me to know what exactly happened during the last 2 months...
Anyway, now it:
1. light doesn't turn on when charging(not sure yet whether it is actually charing)
2. trackball + power could gets it to fastboot screen, but none of the key is working then.
3. after single press of power button when powered off, red/green/blue/white color bar and 3 droids on the screen
so , now I cannot put it in fastboot nor recovery mode, stuck.
could there be anything I can do to rescue it?
ndep said:
2. trackball + power could gets it to fastboot screen, but none of the key is working then.
Click to expand...
Click to collapse
Verify this. Enter fastboot mode (connected to usb) and then try "fastboot devices" in a command prompt. It it reports a connected device then its definitely recoverable.
The only way that a N1 get bricked (software wise) is by upgrading a wrong radio, and unfortunetly the only way to recover it (now) is by sending it to Google/HTC
more explanation
thanks i did try that...fastboot devices could not detect anything,coz it just freezes at that screen and could not enter any mode using power and voldown button.
what puzzlrs me most is that screens with multicolor bars, how on earth does that happen?
britoso said:
Verify this. Enter fastboot mode (connected to usb) and then try "fastboot devices" in a command prompt. It it reports a connected device then its definitely recoverable.
Click to expand...
Click to collapse
update: the light turns orange now and then when charging, and it is actually charging no matter the light is on or not. ( using my own nexus to verify that )
Did you plugged it to your PC?
I knew a guy who bought a ''flashing device'' capable of formating any chipset over USB, so he could do a clean install of the Firmware again. Perhaps you could find one of these devices over ebay
britoso said:
Verify this. Enter fastboot mode (connected to usb) and then try "fastboot devices" in a command prompt. It it reports a connected device then its definitely recoverable.
Click to expand...
Click to collapse
That's assuming he has the android sdk installed with the correct drivers. We don't know if the op has.
@vegetaleb: the device you mentioned is somewhat mysterious... a search on ebay with "flash device" does not give me anything related, do you have a specific name?
@C.Slater: I do have them, coz I myself own a nexus too..
should be deleted, sorry
@vegetaleb: the device you mentioned is somewhat mysterious... a search on ebay with "flash device" does not give me anything related, do you have a specific name?
@C.Slater: I do have them, coz I myself own a nexus too..
edit: isn't there an option to delete this reply? I clicked the submit button twice,sorry.
does typing fastboot devices in the cmd prompt work for your non bricked nexus?
Sent from my Nexus One using the XDA mobile application powered by Tapatalk
Does holding power+trackball bring you to fastboot?
Yes=It's not bricked
No=Kiss it goodbye, it's bricked
Simple as that
TFJ4 said:
Does holding power+trackball bring you to fastboot?
Yes=It's not bricked
No=Kiss it goodbye, it's bricked
Simple as that
Click to expand...
Click to collapse
power+trackball will bring it to fastboot screen, note just the fastboot screen, it just freezes there. All the buttons does not work, and connecting to PC using a USB cable does not show "FASTBOOT USB".
However, it could enter HBOOT with power+voldown, I noticed it searches for passdiag.zip , passdiag.nbh, etc. Could I use this builtin function to flash it? which file in this post should I use?
http://android.modaco.com/content/g...-online-kitchen-optional-root-insecure-himem/
I tried to use the first one ( http://www.romraid.com/paul/nexusone/EPE76-update-nexusone-stock-images.zip ), rename to PASSDIAG.zip , but HBOOT is still complaining about "No Image"
Perhaps it's physically damaged!
It remembers me of my boss iphone that looked perfectly normal but couldn't get a FW installed because the power part has been damaged by water(power button couldn't work at all)
Try renaming it to passimg.zip and use hboot again.
speedyls91 said:
Try renaming it to passimg.zip and use hboot again.
Click to expand...
Click to collapse
tried PASSIMG.zip , still "No Image"...
You can send it to htc for repair but the downside would be that you would never know how to deal with this kind of problem yourself...
Continue the research and keep us posted ...
i maybe wrong but i think is it case-sensitive.....meaning PASSIMG.zip would fail but passimg.zip wouldn't.....Correct me if i'm wrong please....
Case sensitive
I'm pretty sure it is case sensitive. Used to be that way with other android and HTC devices. Can't imagine it's changed.
linux is case sensitive, for sure.
i say approach from the adb/fastboot route, using usb. first, ensure that you have all the correct drivers etc for adb use (the sdk, the usb drivers, and the device specific drivers).
try ur 'adb devices' command
if adb sees it, in normal mode, you should be okay. make sure the phone has 'usb debugging' turned on in settings

[CLOSED] Help! Nexus 10 stuck on Google logo after Rooting attempt

Hey guys, looking for some assistance here as I am at a complete loss.
Decided tonight to root my 4.2.2 Nexus 10 using the Nexus Rootkit v1.6.3 and the aid of a YouTube video. All went swimmingly up until the TWRP wipe. The video I followed failed the wipe attempt and the guy showed how to get the N10 out of the bootloop and do a 'wipe data/factory reset' via Recovery Mode in the Bootloader and then restart.
Problem is, my wipe never failed like his did in the video (great I thought!) and so I restarted after that and now I find my N10 booting up to the Google Logo (with the padlock at the bottom) and it just sits there. Doesn't even get to the 'X' logo which should come after.
I've tried a few things including the manual wipe data/factory reset from the bootloader and restart but everytime it gets stuck at the Google Logo. I am also now at the point where my N10 doesn't show in Device Manager as it did before. It now shows under 'Portable Devices' as a 'MTP USB Device'.
I am really at a loss here and searching various solutions is just confusing me even more and would appreciate it if someone could help me out, even just getting back to stock for now. That's if it isn't goosed?
Thanks in advance
Have you tried using a different usb port on the PC, and rebooting the PC?
bigmatty said:
Have you tried using a different usb port on the PC, and rebooting the PC?
Click to expand...
Click to collapse
I have yeah. Left my PC off overnight and went back to it again this morning and same issue.
Plug it into the PC (this time using a USB port on the back) and it initially comes up 'installing device driver software' quickly followed by 'device driver software was not installed successfully', quickly followed by 'installing device driver software' again and that's when it shows up in Device Manager as 'MTP USB Device' under Portable Devices, whereas before during the root attempt it was show as 'Nexus 10'.
When I first read the subject line I thought it was "another one of these" where OP hadn't searched on the existing boards. But when I read OP I see you did try "the usual suggestions". Hoping a more seasoned pro jumps in here to help...
I can say that on the handful of "really bad" posts like this that I've seen they usually end with the person saying something like "well I don't know what happened I just kept trying all the power button / charge recommendations and finally it worked" - so don't underestimate the effectiveness of repeatedly trying it like a mad man!
Some random suggestions I have that may help:
-Can you leave it on, on the Google screen, to where the battery 100% drains, maybe this could act as a "battery pull"
-Try a different USB cord
-Try rebooting it via the power buttons while the device is plugged into the wall charger
-Download the Android SDK, then use its "update manager" to update its USB drivers to today's definitions
-Try another PC
Good luck!
Thanks for the suggestions bigmatty, I'll certainly give them a go when I get in later.
I think my biggest concern is that there doesn't seem to be any OS on it, possibly to do with the wipe during TWRP and then I rebooted - was I supposed to reboot at that stage? That's where I got into this loop. And now it doesn't detect it as 'Nexus 10' in my Device Manager on my main PC. Only this MTP USB Device - sometimes showing a conflict warning triangle, sometimes not and no longer showing as a storage device in My Computer.
I did connect it to my Netbook (Running XP) earlier and it detected it as an 'Android Device' under Other Devices in Device Manager. Tried installing it with the naked drivers on the Android SDK and it now lists it under 'Android Device' in my Netbook's Device Manager as a 'ADB Device' (I think, would need to double check as I'm not on it at the moment.)
I just want to find some way of getting it back to factory settings and stock OS if possible and then take it from there again. Don't fancy at £319 paperweight! I'm usually alright with these things too.
Thanks again (And if anybody else has any other input in the meantime I would be grateful - I'll try anything at this stage!)
I'd say its a good thing that the PC exhibits varying behavior - because that means there is still hope!
It really boils down to if you can open an adb.exe shell to the device. Can you? It would not be when its showing as MTP but it would be when its showing as adb in Device Manager. If you can then here is a thread where I explain (pretty good, I think) how to get back to stock:
http://forum.xda-developers.com/showthread.php?t=2185123
Now I realize Im not clear on a second avenue - can you still get into TWRP?
~bm
bigmatty said:
Now I realize Im not clear on a second avenue - can you still get into TWRP?
~bm
Click to expand...
Click to collapse
Can't really get into much on the Tablet itself. It boots up, gets to the Google logo (with the padlock symbol at the bottom suggest it has been partially rooted (?)). I can get into the Bootloader by holding down the Power + 2 vol buttons. Once in the Bootloader I have the options of Start/Power Off/Recovery Mode/Restart Bootloader.
When I go into Recovery Mode I can get access to the blue menu where I get the options to restart/something about adb/wipe data/factory reset/delete cache partition (paraphrasing here).
Don't know how many times I've tried the wipe data/factory reset option and reboot but always get sent back to the same loop.
I'll give you're other idea a shot as well later. Thanks again.
bigmatty said:
I'd say its a good thing that the PC exhibits varying behavior - because that means there is still hope!
It really boils down to if you can open an adb.exe shell to the device. Can you? It would not be when its showing as MTP but it would be when its showing as adb in Device Manager. If you can then here is a thread where I explain (pretty good, I think) how to get back to stock:
http://forum.xda-developers.com/showthread.php?t=2185123
Now I realize Im not clear on a second avenue - can you still get into TWRP?
~bm
Click to expand...
Click to collapse
bigmatty, you the man!
Managed to get back to factory stock following yours and styckx's guidelines. Couple of little teething problems along the way but nothing I couldn't get around.
I now have a fully functioning Tablet again and I thank you for it.
Might give the Rooting a miss for now but if I come back around to the idea I'll be sure to follow the guides on here this time instead.
Thanks a bunch again for taking your time out to reply to my thread and get me back up and running again. :good:
Scotman57 said:
bigmatty, you the man!
Managed to get back to factory stock following yours and styckx's guidelines. Couple of little teething problems along the way but nothing I couldn't get around.
I now have a fully functioning Tablet again and I thank you for it.
Might give the Rooting a miss for now but if I come back around to the idea I'll be sure to follow the guides on here this time instead.
Thanks a bunch again for taking your time out to reply to my thread and get me back up and running again. :good:
Click to expand...
Click to collapse
Awesome! Glad it worked out

No Command Error

I went to update to KitKat and it was nearly done and then the "No Command" error came up. My tablet has an unlocked boot loader but isn't rooted. However it was before but I updated it from an OTA and that got rid of it. I've tried booting into recovery etc but the same thing happens.
Anyone have any advice please?
Same exact issue and set up here. Also, maybe I'm just dumb, but I can't get my tablet to turn off either. It just keeps cycling back to the "no command" screen until I do something.
tgearhar said:
Same exact issue and set up here. Also, maybe I'm just dumb, but I can't get my tablet to turn off either. It just keeps cycling back to the "no command" screen until I do something.
Click to expand...
Click to collapse
I think that both of you what you see (the "no command") is your stock recovery, if indeed you see an android with a yellow !.
If it is the case to access the menu of the stock recovery press power and tap volume up. The menu will give you the choice of rebooting your Nexus 7.
gunner1937 said:
I think that both of you what you see (the "no command") is your stock recovery, if indeed you see an android with a yellow !.
If it is the case to access the menu of the stock recovery press power and tap volume up. The menu will give you the choice of rebooting your Nexus 7.
Click to expand...
Click to collapse
I can get to the menu but when trying the reboot option, it just cycles the same way again. Back to the android with a red ! and says "No command." I also tried clearing cache and data to no avail. I was going to try using ADB to manually push the update but my computer was recently updated and now I can't get the driver installed for some reason.
I spent too much time messing around with and learning how to do things with my SIII and not enough time with this
Same deal here! Not sure what to do short of wiping and losing my info.
Same here...any advice? Not sure what happened. OTA update too.
Significa said:
Same here...any advice? Not sure what happened. OTA update too.
Click to expand...
Click to collapse
Wow, this seems to be widespread, at least somewhat. I'm in same situation. Toolkits, adb, nothing works. I thought this was a soft brick, but now I'm thinking it's toast. Probably doesn't help that I didn't have Dev options enabled along with USB Debugging. I can't even turn it off. Just bootloops after Google logo shows up twice, then to No Command error, then starts over again. I wonder what the hell is causing this. (Device was locked and unrooted)
Same boat here, even sideloaded the factory image via ADB.
[QUOTE [/QUOTE]
I was going to try using ADB to manually push the update but my computer was recently updated and now I can't get the driver installed for some reason.
If you have android-sdk-windows installed on your computer do not forget to update it through "SDK Manager.exe".
Pushing via ADB didn't work for me. That also failed.
I caved and called Google. Tech support is stumped as well.
Sent from my Nexus 5 using Tapatalk
Could this be a widespread issue? Like I don't even understand why it happened at all!
Sent from my Nexus 5 using XDA Premium 4 mobile app
I finally got mine working again!
I tried a million different things so I'm going to try and explain my process as simple as I can, I apologize in advance because I am far from an expert...
First, I tried using the method, well some of it, from this thread: http://forum.xda-developers.com/showthread.php?t=1907796
- I would suggest using this thread to get everything set up (drivers, ADB, the factory image downloaded and in the correct file location) I wasn't able to get the drivers working correctly with that route so I ended up using the toolkit to get them working but that thread helped me get all of the system files in the correct location and helped get all of the ADB stuff set up.
Once you have everything set up and your computer recognizes the tablet, (I checked that by opening a cmd prompt and using the command from the original thread above "adb devices"). As long as you see your device, I think you should be good.
From the "No Command" screen I held down Power and Volume + to get the menu to come up. I then chose the Restart option and immediately held Power and Volume -. This got me into the Fastboot Mode.
Once in Fastboot mode I went to the cmd prompt on my computer and used the following commands in this order from this post:
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot erase system -w
fastboot flash system system.img
fastboot reboot
*Make sure that all of the image files are in the proper location on your computer otherwise this step is worthless
The tablet then rebooted normally and I was able to set everything up again. Again, I am by no means an expert at all, this is just what worked for me. Try at your own risk.
I hope I covered all of the steps, I tried a million different things last night so they all kind of run together.
I ended up doing and it worked for me as well. Wiped everything though. How can I restore / reinstall my apps w/o needing to download them all again?
Two things: That guide says you must have USB Debugging enabled. Since my wife had this tablet, I did not have dev options enabled at all, including USB debug.
The other thing is that when I run the SDK Manager, nothing happens on my computer. I double click it or try Run as Admin, and a small CMD box flashes on my screen for a millesecond and disappears. That's all.
My wife's 2012 N7 is having this same problem. Unlocked bootloader, but I reflashed factory image and unrooted before giving it to her. She got the OTA last night, and now stuck at No Command.
I've subscribed to this thread, hoping that you guys will have it solved before I get home from work tonight! Would love to not have her lose all her data.
(I was kinda mad that she got the OTA last night and I haven't got it yet on my 2013 N7, but that's another gripe for another thread)
killswitch11 said:
Two things: That guide says you must have USB Debugging enabled. Since my wife had this tablet, I did not have dev options enabled at all, including USB debug.
The other thing is that when I run the SDK Manager, nothing happens on my computer. I double click it or try Run as Admin, and a small CMD box flashes on my screen for a millesecond and disappears. That's all.
Click to expand...
Click to collapse
Unfortunately I'm not sure on the SDK manager part. As far as the USB Debugging, I'm 98% sure that I did not have it enabled either. I think I did at one point but after doing several OTA upgrades, I'm sure it got unchecked.
---------- Post added at 01:34 PM ---------- Previous post was at 01:01 PM ----------
kr33mo said:
I ended up doing and it worked for me as well. Wiped everything though. How can I restore / reinstall my apps w/o needing to download them all again?
Click to expand...
Click to collapse
I don't believe there is a way. Maybe someone smarter than myself can chime in but I had to let the play store do it's thing and re-download all of mine.
tgearhar said:
I finally got mine working again!
I tried a million different things so I'm going to try and explain my process as simple as I can, I apologize in advance because I am far from an expert...
First, I tried using the method, well some of it, from this thread: http://forum.xda-developers.com/showthread.php?t=1907796
- I would suggest using this thread to get everything set up (drivers, ADB, the factory image downloaded and in the correct file location) I wasn't able to get the drivers working correctly with that route so I ended up using the toolkit to get them working but that thread helped me get all of the system files in the correct location and helped get all of the ADB stuff set up.
Once you have everything set up and your computer recognizes the tablet, (I checked that by opening a cmd prompt and using the command from the original thread above "adb devices"). As long as you see your device, I think you should be good.
From the "No Command" screen I held down Power and Volume + to get the menu to come up. I then chose the Restart option and immediately held Power and Volume -. This got me into the Fastboot Mode.
Once in Fastboot mode I went to the cmd prompt on my computer and used the following commands in this order from this post:
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot erase system -w
fastboot flash system system.img
fastboot reboot
*Make sure that all of the image files are in the proper location on your computer otherwise this step is worthless
The tablet then rebooted normally and I was able to set everything up again. Again, I am by no means an expert at all, this is just what worked for me. Try at your own risk.
I hope I covered all of the steps, I tried a million different things last night so they all kind of run together.
Click to expand...
Click to collapse
Worked for me! Thanks, I don't believe I had USB Debugging enabled either. Shame it wiped all my data though.
OK, got mine back up and running! I'll just leave what I did here in case anyone can benefit from it.
I first used Wug's Toolkit to download and install the RAW drivers. (Option #4, I believe) They were the only ones that worked for me. I followed the instructions to install them and then when it looped to the No Command screen, I held volume up and power. This got me to the menu, where I chose reboot. I then immediately held down the volume button and power to get into the bootloader screen, where it (thankfully) stopped looping. Then I unlocked the bootloader using the one-click option. Next step was to download and flash factory 4.4 image using the Soft Brick mode. Fastboot recognized my device and pushed the image. Now all is well. Close call... I've already enabled USB Debugging for my wife on this tablet so that crap doesn't happen again. She did lose all her data but she is happy to have a working tablet again instead of a $200 beer coaster.
killswitch11 said:
OK, got mine back up and running! I'll just leave what I did here in case anyone can benefit from it.
Click to expand...
Click to collapse
Worked for me as well. Really appreciate that.
Sent from my Nexus 5 using Tapatalk
killswitch11 said:
OK, got mine back up and running! I'll just leave what I did here in case anyone can benefit from it.
I first used Wug's Toolkit to download and install the RAW drivers. (Option #4, I believe) They were the only ones that worked for me. I followed the instructions to install them and then when it looped to the No Command screen, I held volume up and power. This got me to the menu, where I chose reboot. I then immediately held down the volume button and power to get into the bootloader screen, where it (thankfully) stopped looping. Then I unlocked the bootloader using the one-click option. Next step was to download and flash factory 4.4 image using the Soft Brick mode. Fastboot recognized my device and pushed the image. Now all is well. Close call... I've already enabled USB Debugging for my wife on this tablet so that crap doesn't happen again. She did lose all her data but she is happy to have a working tablet again instead of a $200 beer coaster.
Click to expand...
Click to collapse
I'll give that a go tomorrow. Missed my tablet! Hope it works!

[Q] [HELP] Hard Brick Nexus 7

Hi, this is my firt post, i'm going to quote this problem that's the same problem that I have...
"Device : Nexus 7
Problem : I was trying to unroot it and flash a 4.4.2 ROM to the device and i ended up bricking it somehow. I looked around a lot on here and youtube. I found one solution i had not tried which was to get into recovery mod. But the device was stuck on the boot loaded. So i hard shut it down, and pressed the key combination to load the boot loader. And, the screen wasn't loading. I heard the little chimes my computer makes when ever a USB device is active, so i heard the thing load into the boot loader. But its not showing on the screen!
Please help i really shouldn't have done this. But i am literally about to cry.
I tried using Wugfresh's Nexus toolkit to flash the ROM, and it would stop on sending system.
I dont know if i did something wrong, if the kernel was messed up, if the kit wasnt right, please as the video said there is 4 million members here. someone has to know what to do...
-Sean"
I did exactly the same thing that this guy did... ----> http://forum.xda-developers.com/showthread.php?t=2345874
The difference is that I don't live in USA and my Nexus doesn't have warranty... What can I do T.T my pc shows the tablet as Unknown Device and makes a sound when I puggle it, there has to be something that I can do >.<
EverAngelOn said:
Hi, this is my firt post, i'm going to quote this problem that's the same problem that I have...
"Device : Nexus 7
Problem : I was trying to unroot it and flash a 4.4.2 ROM to the device and i ended up bricking it somehow. I looked around a lot on here and youtube. I found one solution i had not tried which was to get into recovery mod. But the device was stuck on the boot loaded. So i hard shut it down, and pressed the key combination to load the boot loader. And, the screen wasn't loading. I heard the little chimes my computer makes when ever a USB device is active, so i heard the thing load into the boot loader. But its not showing on the screen!
Please help i really shouldn't have done this. But i am literally about to cry.
I tried using Wugfresh's Nexus toolkit to flash the ROM, and it would stop on sending system.
I dont know if i did something wrong, if the kernel was messed up, if the kit wasnt right, please as the video said there is 4 million members here. someone has to know what to do...
-Sean"
I did exactly the same thing that this guy did... ----> http://forum.xda-developers.com/showthread.php?t=2345874
The difference is that I don't live in USA and my Nexus doesn't have warranty... What can I do T.T my pc shows the tablet as Unknown Device and makes a sound when I puggle it, there has to be something that I can do >.<
Click to expand...
Click to collapse
Can you get into the bootloader still?
I can't
b3ltazar said:
Can you get into the bootloader still?
Click to expand...
Click to collapse
No, I can't. The screen is completely black.
Have you tried any of the suggestions in the thread you linked in the OP?
EverAngelOn said:
No, I can't. The screen is completely black.
Click to expand...
Click to collapse
Do you get a charging icon when you plug in the n7? did you try a diffrent cable?What exactly does ur computer do when you plug in the dead n7 (does it thy try to install a apx driver) Does toolkit see tablet like its in the bootloader? If so try to flash a new bootloader!
try this found in another thread
To get it out of AXP mode, the correct instructions:
1. Plug in the usb into computer
2. Hold Volume Down + Volume Up + Power simultaneously for like 15 seconds
3. The bootloader should show up.
4. If it doesn't, unplug the usb cable, and plug it back in and then repeat the these procedures
Wugs tool kit
First when you plug it in hold all three power buttons
Second
I also have used the tool kit it gets stuck all the time on the flashing system. I think its a time out error because of the complexity of extracting the image and flahing the image with out a retry or check command. Here is a fix that i have figured out. When in Wugs tool kit download the Os Version you want on your device locate the folder with the downloaded image and extract it using 7 zip. once extracted flash the remaing .img files seperatly under andvance setting menu select flash system then user data it should boot right up. if you forgot what version you flashed previously flash all img files boot bootloader system user etc. if you still have problems let me know. i can give you my email.
Click thanks if i helped
b3ltazar said:
Do you get a charging icon when you plug in the n7? did you try a diffrent cable?What exactly does ur computer do when you plug in the dead n7 (does it thy try to install a apx driver) Does toolkit see tablet like its in the bootloader? If so try to flash a new bootloader!
try this found in another thread
To get it out of AXP mode, the correct instructions:
1. Plug in the usb into computer
2. Hold Volume Down + Volume Up + Power simultaneously for like 15 seconds
3. The bootloader should show up.
4. If it doesn't, unplug the usb cable, and plug it back in and then repeat the these procedures
Click to expand...
Click to collapse
My tablet doesn't show the charging icon, I've tried with different cables, when I plug it to the laptop it makes a sound and shows an APX driver... I'm stressed and that instructions didn't work for me.
EverAngelOn said:
My tablet doesn't show the charging icon, I've tried with different cables, when I plug it to the laptop it makes a sound and shows an APX driver... I'm stressed and that instructions didn't work for me.
Click to expand...
Click to collapse
Unfortunately it sounds like you erased your bootloader and nvflash can do nothing for you unless you used the unbrickable mod before u f'ed up your tablet. Try sending it to asus for Warranty tell em you installed the ota update and it wouldn't boot up afterwards. I have read many threads about this issue with nobody being able to recover there tablet. Asus does have global warranty

Nexus 7 stuck in APX mode, Won´t turn ON, No Backlight.

Hello Guys, beforehand, sorry for bad formatting and some english mistakes.
Let me explain what happened.
I was trying to unlock my Nexus 7 bootloader, but I couldn´t get to the Fastboot mode via adb, so I decided to enter fastboot mode by pressing Power + Volume Down button, but I did this while my tablet was connected to the PC, and after that, it shut down and just don´t turned on anymore. (Never got to fastboot mode)
Now when I connect to windows it only show as an AXP Device and it disconnects and connects when i hold Power button, but never starts.
Also I want to note that.
I didn´t manage to get into fastboot mode.
I didn´t manage to unlock the bootloader.
Didn´t install any Custom Rom.
The device is technically 100% stock, so I don´t expect it to be a Hard Brick, but at the same time, I tried all the button combinations and it still wont turn on.
This happened to anyone? Do you guys have any idea what it could be? Any Sollutions for this?
Thank you.
(Edit: I don´t have the Blobs.bin file in case i need to use the Nvflash.)
Gabu1405 said:
Hello Guys, beforehand, sorry for bad formatting and some english mistakes.
Let me explain what happened.
I was trying to unlock my Nexus 7 bootloader, but I couldn´t get to the Fastboot mode via adb, so I decided to enter fastboot mode by pressing Power + Volume Down button, but I did this while my tablet was connected to the PC, and after that, it shut down and just don´t turned on anymore. (Never got to fastboot mode)
Now when I connect to windows it only show as an AXP Device and it disconnects and connects when i hold Power button, but never starts.
Also I want to note that.
I didn´t manage to get into fastboot mode.
I didn´t manage to unlock the bootloader.
Didn´t install any Custom Rom.
The device is technically 100% stock, so I don´t expect it to be a Hard Brick, but at the same time, I tried all the button combinations and it still wont turn on.
This happened to anyone? Do you guys have any idea what it could be? Any Sollutions for this?
Thank you.
(Edit: I don´t have the Blobs.bin file in case i need to use the Nvflash.)
Click to expand...
Click to collapse
Take a look at this comprehensive listing of Nexus 7 button presses/interrupts. They may be of some use...
https://forum.xda-developers.com/showthread.php?p=37606945#post37606945
Hi, Gabu1405...
APX mode is never a good sign with the Nexus 7. It usually indicates that the bootloader has become corrupted, erased or overwritten (by something that is not a valid bootloader). When this occurs, the device is hardbricked and usually requires a motherboard replacement to resurrect the device, although there is a procedure called 'flatline', but this requires previously generated device unique 'blob' files, which you mention in your post.
Having said all of that though, nothing in your description should have caused the bootloader to have become 'damaged'. In order to erase, corrupt or overwrite the bootloader, your device would need to be bootloader unlocked in the first place, because a locked bootloader prohibits any unauthorised write access - bootloader locked devices can only be system 'modified' by official digitally signed updates from Google, which are flashed via the stock recovery.
Are you certain the Nexus 7 is showing as an APX device in Windows device manager?
What was the battery status/percentage when you attempted to unlock the bootloader? Maybe the tablet just needs a good charge, maybe for several hours!
You don't unlock the bootloader with ADB. Android Debug Bridge only works in fully booted Android and with the stock factory recovery. You need to use fastboot to unlock the bootloader, the command being fastboot oem unlock, whilst the device is in fastboot mode, which you boot into via the Volume Down+Power Button key press combo, as you mention in your post.
How it (may have) got into APX mode is certainly strange, because as I've said, this isn't something that normally happens spontaneously - when it happens, it's often due to people mistakenly flashing an incorrect .IMG file to the bootloader partition, causing the bootloader to be overwritten. A possible explanation is hardware failure, and that the emmc/NAND chip storage has developed a fault, and caused the bootloader to become corrupted. It's worth bearing in mind that the Nexus 7 is now seven years old, and with the best will in the world, these things don't last forever, unfortunately. Components fail and data corruptions occur.
If your Nexus 7 is truly in APX mode, for whatever reason, then I'm afraid it's likely hardbricked, and a motherboard replacement is the only realistic way of resurrecting it.
I can only suggest you try charging your Nexus 7, maybe overnight, or for several hours at least, and maybe try the button presses referenced via the link at the top of this post, and see if you can coax life back into your Nexus 7. It does happen sometimes; a seemingly dead device will suddenly spring back to life, through a combination of serendipity and hitting on doing the right things, in the right order, and at the right time
Good luck, Gabu1405...
Rgrds,
Ged.
GedBlake said:
Take a look at this comprehensive listing of Nexus 7 button presses/interrupts. They may be of some use...
https://forum.xda-developers.com/showthread.php?p=37606945#post37606945
Hi, Gabu1405...
APX mode is never a good sign with the Nexus 7. It usually indicates that the bootloader has become corrupted, erased or overwritten (by something that is not a valid bootloader). When this occurs, the device is hardbricked and usually requires a motherboard replacement to resurrect the device, although there is a procedure called 'flatline', but this requires previously generated device unique 'blob' files, which you mention in your post.
Having said all of that though, nothing in your description should have caused the bootloader to have become 'damaged'. In order to erase, corrupt or overwrite the bootloader, your device would need to be bootloader unlocked in the first place, because a locked bootloader prohibits any unauthorised write access - bootloader locked devices can only be system 'modified' by official digitally signed updates from Google, which are flashed via the stock recovery.
Are you certain the Nexus 7 is showing as an APX device in Windows device manager?
What was the battery status/percentage when you attempted to unlock the bootloader? Maybe the tablet just needs a good charge, maybe for several hours!
You don't unlock the bootloader with ADB. Android Debug Bridge only works in fully booted Android and with the stock factory recovery. You need to use fastboot to unlock the bootloader, the command being fastboot oem unlock, whilst the device is in fastboot mode, which you boot into via the Volume Down+Power Button key press combo, as you mention in your post.
How it (may have) got into APX mode is certainly strange, because as I've said, this isn't something that normally happens spontaneously - when it happens, it's often due to people mistakenly flashing an incorrect .IMG file to the bootloader partition, causing the bootloader to be overwritten. A possible explanation is hardware failure, and that the emmc/NAND chip storage has developed a fault, and caused the bootloader to become corrupted. It's worth bearing in mind that the Nexus 7 is now seven years old, and with the best will in the world, these things don't last forever, unfortunately. Components fail and data corruptions occur.
If your Nexus 7 is truly in APX mode, for whatever reason, then I'm afraid it's likely hardbricked, and a motherboard replacement is the only realistic way of resurrecting it.
I can only suggest you try charging your Nexus 7, maybe overnight, or for several hours at least, and maybe try the button presses referenced via the link at the top of this post, and see if you can coax life back into your Nexus 7. It does happen sometimes; a seemingly dead device will suddenly spring back to life, through a combination of serendipity and hitting on doing the right things, in the right order, and at the right time
Good luck, Gabu1405...
Rgrds,
Ged.
Click to expand...
Click to collapse
Sorry, I expressed myself wrongly, I ran the same command as you said, it was fastboot oem unlock and it just said, "waiting for device..." then I tried fastboot oem unlock-go, also the same thing "waiting for device" so I just disconnected the tablet and restarted it and it was working pretty fine, then I connected to the PC and tried to enter fastboot mode manually, and this is when it shut down and never turned back on.
Also, my battery was at 70% at that time and yes, It's clearly on APX mode.
Well, thank you for your reply, now the only thing I got to do is recharge it and hope for the best.
Regards.
Gabu1405 said:
Sorry, I expressed myself wrongly, I ran the same command as you said, it was fastboot oem unlock and it just said, "waiting for device..." then I tried fastboot oem unlock-go, also the same thing "waiting for device" so I just disconnected the tablet and restarted it and it was working pretty fine, then I connected to the PC and tried to enter fastboot mode manually, and this is when it shut down and never turned back on.
Also, my battery was at 70% at that time and yes, It's clearly on APX mode.
Well, thank you for your reply, now the only thing I got to do is recharge it and hope for the best.
Regards.
Click to expand...
Click to collapse
Probably not much use until, or indeed if, you can get out of APX Mode... But the 'waiting for device' message is usually an indicator of a Windows driver problem - Windows is not able to communicate with the Nexus 7.
The way you'd normally do things is by first running the command fastboot devices
This command does nothing, except to confirm you have a viable fastboot connection, by displaying your Nexus 7's unique serial number in your Windows Command/DOS box. If this serial number fails to appear, you have a driver/connectivity problem and proceeding on to fastboot oem unlock would be pointless until the driver/connectivity problem is resolved.
Anyway, I hope charging the device helps. I'm still inclined to think that your device is recoverable - it would certainly be very unusual for the bootloader to be borked when it hasn't even been unlocked yet. In the seven years I've been a Nexus 7 owner, and being active on these forums for many of those years, I haven't encountered any reports by other XDA members where a locked bootloader has simply quit working... As I say, it'd be very unusual, but I suppose not wholly impossible.
Rgrds,
GB.
GedBlake said:
Probably not much use until, or indeed if, you can get out of APX Mode... But the 'waiting for device' message is usually an indicator of a Windows driver problem - Windows is not able to communicate with the Nexus 7.
The way you'd normally do things is by first running the command fastboot devices
This command does nothing, except to confirm you have a viable fastboot connection, by displaying your Nexus 7's unique serial number in your Windows Command/DOS box. If this serial number fails to appear, you have a driver/connectivity problem and proceeding on to fastboot oem unlock would be pointless until the driver/connectivity problem is resolved.
Anyway, I hope charging the device helps. I'm still inclined to think that your device is recoverable - it would certainly be very unusual for the bootloader to be borked when it hasn't even been unlocked yet. In the seven years I've been a Nexus 7 owner, and being active on these forums for many of those years, I haven't encountered any reports by other XDA members where a locked bootloader has simply quit working... As I say, it'd be very unusual, but I suppose not wholly impossible.
Rgrds,
GB.
Click to expand...
Click to collapse
Well, charged my device for a whole day, and now I tried to do the button combinations which you sent the link, nothing happened.
I thought that my battery could be unplugged or the cable was loose or something, so I opened the tablet and it was fine.
So, I just decided to do the button combinations while plugged into my PC, and I noticed that doesn´t matter which combination I try, the tablet disconnects from the PC and instantly reconnects, but still in APX mode.
I guess it is Game Over for me, gonna recharge it again, and try again tomorrow.
Thanks again.
Gabu1405 said:
Hello Guys, beforehand, sorry for bad formatting and some english mistakes.
Let me explain what happened.
I was trying to unlock my Nexus 7 bootloader, but I couldn´t get to the Fastboot mode via adb, so I decided to enter fastboot mode by pressing Power + Volume Down button, but I did this while my tablet was connected to the PC, and after that, it shut down and just don´t turned on anymore. (Never got to fastboot mode)
Now when I connect to windows it only show as an AXP Device and it disconnects and connects when i hold Power button, but never starts.
Also I want to note that.
I didn´t manage to get into fastboot mode.
I didn´t manage to unlock the bootloader.
Didn´t install any Custom Rom.
The device is technically 100% stock, so I don´t expect it to be a Hard Brick, but at the same time, I tried all the button combinations and it still wont turn on.
This happened to anyone? Do you guys have any idea what it could be? Any Sollutions for this?
Thank you.
(Edit: I don´t have the Blobs.bin file in case i need to use the Nvflash.)
Click to expand...
Click to collapse
Hi!
I had a Nexus 7 stuck in APX mode as well. Without the blobs saved you can't do anything. I tried a lot of thigs but nothing really helped. I ended up searching for an another N7 with a broken screen but with a working motherboard online. I was lucky and find one around $15. I swapped the boards and it was good to go.
Zsolti
Gabu1405 said:
Hello Guys, beforehand, sorry for bad formatting and some english mistakes.
Let me explain what happened.
I was trying to unlock my Nexus 7 bootloader, but I couldn´t get to the Fastboot mode via adb, so I decided to enter fastboot mode by pressing Power + Volume Down button, but I did this while my tablet was connected to the PC, and after that, it shut down and just don´t turned on anymore. (Never got to fastboot mode)
Now when I connect to windows it only show as an AXP Device and it disconnects and connects when i hold Power button, but never starts.
Also I want to note that.
I didn´t manage to get into fastboot mode.
I didn´t manage to unlock the bootloader.
Didn´t install any Custom Rom.
The device is technically 100% stock, so I don´t expect it to be a Hard Brick, but at the same time, I tried all the button combinations and it still wont turn on.
This happened to anyone? Do you guys have any idea what it could be? Any Sollutions for this?
Thank you.
(Edit: I don´t have the Blobs.bin file in case i need to use the Nvflash.)
Click to expand...
Click to collapse
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