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2012 Nexus 7 Discussion Forums (1st Generation) => Nexus 7 Help => Topic started by: charlie on November 25, 2013, 04:45:51 PM
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while running 4.4 ota I got an error msg "no command" I tried hard reset, unplug battery, nothing seems to help.
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Give us a little more about your situation. Are you rooted? Which model N7? Regular OTA or sideload?
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Did you have an alternate launcher installed? I've seen reports where next launcher is not compatible with 4.4, and the nex7 hangs on boot. If this is the case, boot into safe mode and change to stock launcher.
Safe mode: hold volume down when you see the Google logo until boot finishes.
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yes rooted, reg. ota, "nexus 7 -18001A", nova launcher installed. cannot boot passed "no command screen. I have removed back and unpluged and repluged Batt. still as far as can boot is to no command screen. cannot turn it off, it keeps comming back on. I also tried the reset button.
I appreciate everyones help.
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It may be hanging right when the launcher loads. To get to safe mode:
1. Hold power button until it reboots.
2. When you see the Google logo, release the power button and hold the volume down button.
It should boot to safe mode where you can change the launcher.
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If you make it to safe mode, navigate to settings/apps click on nova launcher and clear defaults.
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Cannot boot into safe mode, boots to a green android that sez "no command" that's as far as I can go. but Matt I appreciate your help.
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Sorry, saw a thread that mentioned no command, thought it might benefit.
Managed to get to the android with red triangle and no command by holding power and volume up during boot. Exited by holding power button for about a minute.
Seems like a flash mode waiting for adb maybe. Does the computer load any drivers when you plug it in? May need to flash os.
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OK, that's the recovery screen. Hold power, press volume up, release power. Should be a menu to reboot, factory reset, etc. Don't wipe partitions.
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http://forum.xda-developers.com/showthread.php?t=2537669
If you can't get out of recovery?
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If your rooted have you modded anything? Frozen apps with TiBu? Installed Xposed Framework? Edited any system files?
You may need to factory reset for the update to work...
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Wasn't there a repair option in one of the toolkits?
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Hey J, and chance of a 'side loading KitKat' tutorial in the future? My OTA came and went and I've tried a few times to sideload but no dice...
radio
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I finely get a menu on my nexus 7-2012 that give me these options which still don't boot the device. "start, power off, recovery mode, restart bootloader" the only one that works in "power off" thats all I can get on the screen except the red triangle.
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Did you have twrp installed? S. Prime mentioned having to reflash twrp when he hung on the recovery.
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http://www.Nexus7Forum.com/index.php?topic=3243.0
4.4 error now nothing
Try the toolkit.
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no did not have twrp installed.
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Matt, don't anything about the "tool kit'. don't know what it is, or how to use it.
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You stated that it was rooted, did you use adb/fastboot to root or a toolkit which automates the commands?
Search this forum for toolkits. Wugfresh has a soft brick solution, while skippens shows a recovery flash stock or custom.
If you used adb, you can download the factory image to the platform_tools directory, unzip it twice and run the flash_all.bat
These methods require a computer with the right drivers.
Is it still under warranty?
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Matt, I used "nexus root toolkit v1.5.5
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Cool, you may want to update it. Let's get someone familiar with that tool kit to walk you through it. I'm guessing reflash the stock recovery, and if there's still a problem flash the stock firmware? There may be a web site with a FAQ just for that program.
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http://www.wugfresh.com/nrt/
1.7.8 is the latest version, FAQs and instructions on this site.
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matt, you are on the correct track, the "no command" indicates that charlie does not have a recovery on his Nexus. I am a little unclear as to his upgrade process, but I suggest we follow these steps:
1) Establish if the Nexus 7 will boot to Android, is so go to 2), if not he needs to post here and he will probably need to look at a factory install option.
2) Download the latest version of Wugfresh or Skippen's toolkits.
3) Flash a custom recovery or the stock recovery.
4) Run the OTA by sideload or wait for the OTA to prompt again, and run it.
5) Use the toolkit to root the device again.
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cannot boot past little green men. 4.4 update was ota from google. I have the latest update for the tool kit 179.0 I can't get in to start bootloader.
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Soft brick.
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Matt I tried softbrick, but I can't get into bootloader mode. I tried several times it just wouldn't work.
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Power + volume down. Its that other menu you had before. May say fastboot at the bottom. Check that the drivers are working, should be in that kit somewhere.
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Try the Skippen toolkit, I have found occasions when one toolkit succeeds when another has failed.
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From fallen android: hold power and momentary press volume up. Should see the recovery menu. Scroll to reboot with the volume button. Tap power and immediately hold power and volume down. Should get you to boot loader/fastboot mode. Plug into computer. Open toolkit and find the command line option. Drop to command line and type
Fastboot devices
If it is recognized try the soft brick option. Or another toolkit.
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The fallen Android with the red triangle indicates that you are in the bootloader without a recovery. As I am more familiar with the Skippen toolkit, go to skipsoft.net and download the toolkit for your device or the Universal Toolkit and install. Connect your tablet to your computer and start the toolkit and select your model and wait for the support files to download. Once into the toolkit, if your device is recognized, follow the following steps:
Step 1 Select option 6 and install the custom recovery or the stock one. This will restore the start and recovery option to your bootloader. Try start first, doubtful, but worth a try. Also you can now restore a nandroid backup, if you have one and you have loaded a custom recovery. If you are not successful go to step 2.
Step 2 Attempt to copy your data from your tablet to your computer, if the Nexus shows up in Windows File Explorer. Select option 2 and backup your tablet to your computer. Then select option 16 and load the factory image, remember you lose all apps and data, so be prepared to reload apps and data. If you happen to have a Titanium backup, make sure you save that to your pc as well, since it gives you a great restore option for apps and data. If you have reached this point you can now apply root to your tablet again and have full functionality.
The above steps are based on adb and fastboot commands that should run from the screen with the fallen Android with the red triangle, as matt had stated, so they should run from Wugfresh's toolkit as well.
Good luck and keep us posted.
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Matt and S. Prime I made it with you guys help, I have my nexus 7 running again with kitkat 4.4. I want you all to know I really appreciate your help. I could not done it without you.
thank you very much
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Fantastic! For the benefit of others who may find themselves in your predicament, try to detail your remedy, when you catch up on sleep that is.
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Congratulations charlie, obviously matt carried the lead in this resolution, so the major appreciation, goes to him.
Prime
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Nice job guys.
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Please correct me if I'm wrong. It seems kit Kat has a new adb verification step, which requires the device to be booted and grant the computer access. So a toolkit which issues a command like
Adb reboot bootloader
To go to the boot loader and load the fastboot drivers instead of adb will fail in this snafu situation.
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sorry about that Matt, had to take football break. what I did to get back to running was to use 2 tool kits. the problem with recovery was the tool kit couldn't find the n7. I used skipsoft to get drivers loaded then I was able to use nr tool kit to unroot the device, then recovery started on its own. it downloaded kitkat and installed it. the home pages were blank, but all apps were still in the n7 it was just a matter of putting them on the home pages. as I said before I sure appreciate you and Prime helping me I could not have done it without you. the n7 is running great thanks to you guys.