Database Users

help with bootloop and "no command"

I rooted my N10 using CF-Auto-Root without unlocking the bootloade (on purpose). The N10 has been working fine and I loaded 10G of personal files. Then I sideloaded an old version of the LBE privacy guard. It installed, but then when I returned to the homescreen I got bootlooped.
I turn it off and back on, and I got the dreadful android-with-red-triangle saying "no command".
I could get into the recovery mod using power+volume up/down. "Restart bootloader" got me back to the recovery manual; "recovery mode" or "start" got back to the red triangle. I was able to turn it off. The battery is at 80%.
Is there a way I can wipe my N10 and do a factory reset? I did not unlock my bootloader; is that why I can flash a factory image?
Since I can't boot up the N10, at this point I probably can't use adb to remove the bad apk?
I'd prefer not to unlock the device, in case I need to RMA back... And I'd rather not return it at all, since I just uploaded lots of personal info...
Your help is **most** appreciated.

I think that if you press power, volume up and volume down at the red triangle screen it will get you to the stock recovery. You should read the stickies in the two development sections lots of people needing to do factory resets after unlocking.
Sent from my Nexus 10 using xda app-developers app

Sounds like you are getting into fastboot mode fine, so worse comes to worse, you can unlock it, flash a factory image and re-lock it ..
Of course doing that you are going to loose all your data ..
Check out the tut's for flashing factory from fastboot, or you could use mskip's toolkit ..

[Q] Nexus 7 no os installed help,and then some

Hi guys,noob problem here.
Problem:
my nexus died while i was watching a youtube video but my battery is still 30+% when i plugged my charger turned it on,it only got to the lock screen and and then it died again. but this time it has the static on the screen so i panicked. i went to the twrp recovery and wiped the cache,dalvik and accidentally wiped the system. now i have it's showing "no os installed,do you still want to reboot?". at this point,i dont know what to do. i read forums and guides to restore the factory image. i downloaded them and tried flashing it from my nexus toolkit 1.6.2 and it's taking a very long time to "waiting for your device to finish booting back up" and i tried it on the coomand prompt too but failed "too many links" message showed up. everytime i go to the bootloader and flash the stock image it always "hangs",the volume up and down wont work,its always on the "start".
oh and when i went to the command prompt to check for adb devices,my device doesnt show up.
i really need help,are there any step by step guide for dummies?
i'm sorry if the question is a little unorganized,i'm panicking,did i miss anything? please help
EDIT:
everytime i go to the recovery i always get the android with the red exclamation point. please help
thank you!

HELP! Bricked Nexus 7, cannot boot into boot loader

Hello everyone, I'm new in this forum and have just bricked my Nexus 7 .
I was not very happy with my Nexus 7 with JB version 4.2.1, it lagged and took long time to load apps etc. I used the Nexus 7 toolkit to unlock my bootloader, flash recovery and then tried a few custom roms. I eventually flash the official 4.1.2 firmware from google but the constant notification for firmware update annoyed me and I decided to root and get rid of the firmware update notifications by installing fotakill.apk.
But when I tried to root using the Nexus 7 toolkit, I chose the option to sideload the zip files for rooting automatically. It asked to flash my boot loader to a lower version (3.34, mine was 3.41) and afterwards it rebooted the device and eventually got stuck at a screen with these lines:
now send the package you want to apply
to the device with adb sideload <filename>
after a long time without anything happening, I suspected that things went wrong and pressed the power button for a few seconds and the device turned off. Now I cannot turn it back on, when plugged in it doesn't show the charging battery, also I cannot boot into fastboot mode by holding Volume down + Power button. The screen stays black the whole time.
I even tried to open the back power and pull the battery out and in again and try to turn on the tablet, nothing happens. I remember the battery level was like roughly 90% the last time the tablet was working, so I don't know what went wrong .

Hold power + vol down button about 30 seconds
Sent from my Nexus 7 using XDA Premium HD app

semeru said:
Hold power + vol down button about 30 seconds
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
I tried that but nothing happened .

Press all buttons on the side simultaniously untill fastboot/bootloader mode appears. This should work, no matter if your device is booted or not, or soft bricked or whatever. Then: http://forum.xda-developers.com/showthread.php?t=1907796 .
If it doesn't work however (like after 30-60 seconds), then connect your nexus 7 to your PC. Go to device manager and identify your device. Does it say apx-mode or something like that? Then your device is possibly hard bricked and you might find some answers here: http://forum.xda-developers.com/showthread.php?t=1879228 .
Your should not have used rootkits. Most of these topics appear after people using toolkit. Learn to use fastboot. It's the only program you'll need for the nexus 7. Yes, it's a command line tool but at least it forces you to think before flashing. For example, it was not necessary to downgrade your bootloader. I really don't get why you did that. Also, if you want to run a stable 4.1.2 without the annoying update messages, you can, for example, flash cyanogenmod 10. It's stable, very smooth, and way better than stock.

Westervoort said:
Press all buttons on the side simultaniously untill fastboot/bootloader mode appears. This should work, no matter if your device is booted or not, or soft bricked or whatever. Then: http://forum.xda-developers.com/showthread.php?t=1907796 .
If it doesn't work however (like after 30-60 seconds), then connect your nexus 7 to your PC. Go to device manager and identify your device. Does it say apx-mode or something like that? Then your device is possibly hard bricked and you might find some answers here: http://forum.xda-developers.com/showthread.php?t=1879228 .
Your should not have used rootkits. Most of these topics appear after people using toolkit. Learn to use fastboot. It's the only program you'll need for the nexus 7. Yes, it's a command line tool but at least it forces you to think before flashing. For example, it was not necessary to downgrade your bootloader. I really don't get why you did that. Also, if you want to run a stable 4.1.2 without the annoying update messages, you can, for example, flash cyanogenmod 10. It's stable, very smooth, and way better than stock.
Click to expand...
Click to collapse
Thanks I did a search and finally found an answer. I was running fine on my N7 with PACMan and suddenly it got stuck booting up. So I booted into recovery and reflashed the ROM, and wiped dalvik and cache. When I rebooted it went to "Android is upgrading" like usual after wiping dalvik, then it got stuck there. So I rebooted again and nothing. Just a blank screen. Your suggestion of holding all the buttons down for 30-60 seconds awoke my Nexus. I'm going to wipe everything and start over.

[Q] Cannot unlock bootloader

My Nexus 7 2012 WiFi 4.4.2 started acting flaky a couple of weeks ago, randomly shutting down,etc. Anyway, it finally got to the point that I decided to just go back to factory settings. This resulted in it not booting past the "Google". Long story short I am now at the point of trying to flash it from my PC.
Nothing I do will get it to unlock the bootloader. I'm not even sure why I'm posting this as I have read every thread on this and nothing works, I just find myself going in circles. I have also read where one does not have to unlock the bootloader to flash it, but I have come to the conclusion that is just not so. Or at least I have not found a post that describes how to do that. When I try to unlock it it say in the upper right on the device "unlocking bootloader......" That's it.
I should also mention that I don't remember if USB debugging is on or off. Of course it dosn't matter 'cause I can't set it now anyway.
So I guess my question is, could there be a hardware issue that would put it in this state? I hate to just drop it in the trash without doing due diligence.
-Jim

Hey guys,
I've got a device from a friend with the exact same problem.
I would like to try to flash stock fresh with the nexus tool kit.
The problem is, this old nexus 7 (2012) is still with a locked bootloader.
I cannot start the device, it won't go past "Google", I can access fast boot, and the Toolkit can find the device and all.
I also get the "Unlocking now..." in the top left corner after I accepted the unlock with the power button, the device shuts down a few seconds later. According to the Nexus Toolkit I need to boot the device and finish the unlock in the developer options, and there goes my problem... I cannot start and finish the script as the device is not booting at all, apart from the fastboot ofc.
Is there ANY way to unlock the device without being able to boot up the device?
One more thing, when the Nexus toolkit sent a restart command, the device will just shut down, I have to start it manually again.

[Bricked?] Can't get to bootloader after trying to unlock with NRT

So I have a nexus 10 32gb that I got yesterday that I updated to 4.4.4 and I wanted to root it so I could get some apps that I love to use. Here's what happened:
Everything was going smoothly with nexus root toolkit. I set up adb and all of the drivers. Everything with that was working and I made sure to check nexus 10 with 4.4.4 in the drop down. I press the unlock bootloader button and the device says it's going into bootloader mode, but it just goes to a black screen. Then a message pops up saying I have to factory reset if i'm on 4.4.4, but that never shows up on the tablet, so I just hit OK. Then the device supposedly reboots, but now it's stuck in a bootloop and whenever I hold down the buttons to go into the bootloader the screen will turn black and the device will vibrate once after I hold the buttons for a while, then it tries to reboot again and gets stuck bootlooping. Then I try the factory reset method through the nexus root toolkit, but fastboot fails to see the device since I can't get it into the bootloader! It also doesn't show up as the correct device when it is bootlooping and connected to my computer.
Am I scewed if i can't get to the bootloader? I don't know what went wrong. I just got it yesterday and assumed it would be super easy to root since it's a nexus device. :'(
Any help/ suggestions would be great.

You are correct, nexus devices are super easy to root especially without a toolkit, most rooting issues I've seen on any nexus device has been due to the use of a toolkit so I would advise not to use it.
Currently you need to get into bootloader so you can flash a custom recovery with fastboot and then flash ROM of choice from there
Try adb reboot bootloader while in bootloop but I have a feeling this won't work. So if not try powering on holding volume down, even try with volume up, just keep trying button combos to get it to boot into bootloader.
For further help try here
http://forum.xda-developers.com/showthread.php?t=2670400
But keep trying to get into bootloader
Sent from my Nexus 4 using XDA Premium 4 mobile app

Try power and both volume buttons at the same time if you haven't already.

sfobrien said:
Try power and both volume buttons at the same time if you haven't already.
Click to expand...
Click to collapse
I have actually been trying that. I just let it die while it was bootlooping, so hopefully when it gets a little charge I can try to get it to go into the bootloader again. I have a feeling there's a bigger issue than that though.