Database Users

[Q] Nexus 7 stuck on boot screen

I searched the forums and don't know what to do. I installed cwm through ROM manager. I was able to boot into cwm from ROM manager. I did a nandroid backup. I tried installing aokp build 4 but got an error (don't remember what it said now). When I tried to reboot it stays stuck on the Google screen. I don't know how to get back into recovery. I've tried rebooting by holding down power and the volume up and down buttons. It just goes back to the google screen. What can I do?

When you're at the bootloader, in fastboot mode, connect your n7 to the PC and execute in the command line
fastboot boot nameofyourrecovery.img
Or just use the toolkit in the sticky at dev section.
Tapatalked from my N7

ro7nin said:
I searched the forums and don't know what to do. I installed cwm through ROM manager. I was able to boot into cwm from ROM manager. I did a nandroid backup. I tried installing aokp build 4 but got an error (don't remember what it said now). When I tried to reboot it stays stuck on the Google screen. I don't know how to get back into recovery. I've tried rebooting by holding down power and the volume up and down buttons. It just goes back to the google screen. What can I do?
Click to expand...
Click to collapse
Hi,
I had the same issue on Friday. Started after i reflashed the recovery via Rom Manager,
I fixed it by doing the following.
Download and install this toolkit. http://forum.xda-developers.com/showthread.php?t=1809195
I managed to get the device into bootloader mode by holding the Power + Volume up and down for around 20 seconds.
Flash the Google Factory image. For me this was the only way to recover it fully. tried various other things first.
After that completes you can go through the full root and flash procedure again. The toolkit makes it all so very easy. Thanks to the developer for that.
Thanks
Ar3na

I had a similar issue after using the Nexus Root Toolkit to flash to nakasi 4.2 with CWM recovery - just got stuck on the nexus boot screen, flashing in a loop for over 15 minutes.
I ended up powering down the device, holding power for about 5-10 seconds - then QUICKLY holding both the power and volume up+down keys, it then went into the fastboot screen.
After it was there, plugged it into my PC.
Now, this should work for you - assuming you have all the fastboot/usb driver stuff installed.
I extracted the contents of nakasi-jop40c-factory-6aabb391.tgz into the same directory as the fastboot.exe provided by WugFresh with his Nexus Root Toolkit (google search or xda search for this if you dont have it, i dont think i can post links due to my low postcount) - typical filepath: C:\Program Files (x86)\WugFresh Development\data
By the files in there, I mean drilling down inside the tgz to where the image files were inside so that files like bootloader-grouper-4.13.img, image-nakasi-jop40c.zip etc were extracted into the directory and sitting alongside the fastboot.exe - NOT in a subfolder.
Once its all here, running flash-all.bat (this is provided by google in the nakasi-jop40c-factory-6aabb391.tgz) from the command line or by double clicking on it from explorer should kick off the process. After about 2-3 minutes, it was complete, and my Nexus then booted up within about 3 minutes after that.
Also worth noting, device remained unlocked, but I lost root/root binary

Nexus 7 wont boot pass google logo after root/unroot

I got a nexus7 a week ago but decided to root the device today just to try apps which require root, i rooted it fine but i decided to unroot and thats where the problem started i cant boot pass the google image, i can get into where you hold down volume and power for so many seconds and team win recovery which says i have no OS in the reboot section, i've tryed nexus 7 toolkit v3.2.0 and nexus root toolkit to restore back to factory system but no luck, so is it me doing something wrong or is my nexus 7 just a paper weight now.

Doubt it,
Being you still have a custom recovery you didn't follow the right steps to unroot, might need to unlock the bootloader again, but follow one of the many guides, and try to stay away from a tool kit
Sent from my HTC Vision using xda premium

Unlock bootloader
Flash boot, recovery, system, userdata.
Files are zipped in the factory images directly from google.
Wipe cache.
Relock bootloader.
Reboot into recovery.
Factory reset. (Nexus 7 will only see 8GB if you don't do this step)
That is the gist of how it's done.

I followed a step by step guide on laptop man website but when i come to flash the android image it says file too large, i used 4.2.1 from googles site, if i'm correct when you type fastboot -w update image-nakasi-jro03d.zip (in the walkthrough) i can replace it with a later newer android in this case 4.2.1 jop40d

You could do it that way. Some people have. Although I received an error every time I did.
I didn't receive an error when I flashed the files in the zip.
First make sure you have the correct factory image for your device downloaded.
Then make sure you extract the boot.img, recovery.img, system.img, and userdata.img files to your fastboot folder and perform the following actions...
fastboot oem unlock
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash system system.img
fastboot flash userdata userdata.img
fastboot erase cache
fastboot reboot-bootloader
fastboot oem lock
Lastly, boot your system up into recovery and perform a factory reset from there. If you don't do the last step they you will be stuck with ouly 8GB, vice 16 or 32.
It's that easy.

When i try to boot into recovery mode i get the android mascot with a red triangle, does that mean i have no recovery file.
OOOPS the system booted up into android as the recovery mode didnt work (as above) is there anyway i can reset to factory settings to get the 32GB back as it shows 6GB.
Update: I think i sorted it out now somehow as it shows up as 27.oddGB now (about same as i got it) instead of 6GB, anyway thanks for your help, it seemed complex well it is but once you know whats what it's not so, the hardest part is getting the files and putting them in the right places

When I try to reboot to recovery via the bootloader it just hangs... Can boot to recovery inside android (usually using Rom Manager or another reboot application)... any idea why?

I have read reports that it will hang when booting into recovery if not connected to a PC.
And as for that triangle you see.... That's normal.
That means that your in recovery mode. Your menu is just hidden.
Press power and volume up to view it.

[Q] Help Please - Stuck on boot screen after factory image install

Hope someone can help. I've tried updating my Nexus 4 to KitKat, and think I've borked it, as it is now stuck in the boot screen with the four coloured spinning circles.
Here's what I did:
Downloaded the 4.4 KRT16O Factory Image for Nexus 4 from Google Developers site
Unlocked the Bootloader on my Nexus 4
Went to Android SDK manager folder and Platform Tools.
Extracted the Factory Image to this folder
Enter comand prompt
Typed fastboot devices to ensure the phone is visible
Typed flash-all.bat
The phone re-boots, I get the spinning circles and nothing more.
I can get back to fastboot, and have tried reinstalling the Jelly bean image, but this also hangs at the boot screen. I've tried both Images and neither seem to get past their relevant boot screens. In both instances I can get back to fastboot.
I haven't installed a custom recovery
What to do?
I'd be grateful of any help.

dreamypuma said:
Hope someone can help. I've tried updating my Nexus 4 to KitKat, and think I've borked it, as it is now stuck in the boot screen with the four coloured spinning circles.
Here's what I did:
Downloaded the 4.4 KRT16O Factory Image for Nexus 4 from Google Developers site
Unlocked the Bootloader on my Nexus 4
Went to Android SDK manager folder and Platform Tools.
Extracted the Factory Image to this folder
Enter comand prompt
Typed fastboot devices to ensure the phone is visible
Typed flash-all.bat
The phone re-boots, I get the spinning circles and nothing more.
I can get back to fastboot, and have tried reinstalling the Jelly bean image, but this also hangs at the boot screen. I've tried both Images and neither seem to get past their relevant boot screens. In both instances I can get back to fastboot.
I haven't installed a custom recovery
What to do?
I'd be grateful of any help.
Click to expand...
Click to collapse
Boot in bootloader, then select "recovery". When you get to an android laying on his back, press "Power+Volume UP" at the same time (don't hold. Just press). A menu should appear. Select "Data wipe/ Factory reset", and reboot.

abaaaabbbb63 said:
Boot in bootloader, then select "recovery". When you get to an android laying on his back, press "Power+Volume UP" at the same time (don't hold. Just press). A menu should appear. Select "Data wipe/ Factory reset", and reboot.
Click to expand...
Click to collapse
I had a thread yesterday on the same topic. http://forum.xda-developers.com/showthread.php?p=47490462#post47490462
hope that helps.

This may work
Hi, I encountered the same problem. I had the LTE baseband radio which was not being accepted in the flash-all.bat and it kept giving me in error in install and wont complete. I used nexus root tool kit to flash the radio img extracted from the 4.4 occam file using the advanced utilities in tool kit. After that I used the tool kit again and again to install the 4.4 but it kept getting stuck in the boot animation even after successful installs. I gave up and as a last resort tried the flashall.bat again. It went through smoothly since it detected the new radio and I let it hang in there for 10-15 mins in the boot animation and viola ! I had it installed.
Hope part of this may work for you.
---------- Post added at 01:40 PM ---------- Previous post was at 01:35 PM ----------
priyab said:
Hi, I encountered the same problem. I had the LTE baseband radio which was not being accepted in the flash-all.bat and it kept giving me in error in install and wont complete. I used nexus root tool kit to flash the radio img extracted from the 4.4 occam file using the advanced utilities in tool kit. After that I used the tool kit again and again to install the 4.4 but it kept getting stuck in the boot animation even after successful installs. I gave up and as a last resort tried the flashall.bat again. It went through smoothly since it detected the new radio and I let it hang in there for 10-15 mins in the boot animation and viola ! I had it installed.
Hope part of this may work for you.
Click to expand...
Click to collapse
Also delete your old folder of ADB, download a new one and reextract. Unzip the tar>tar directly in platform tools folder. Good luck

Follow this i too had the same prob bt got it resolved through this method. jst keep ur phone on bootloader/fastboot mode.. n run this toolkit
http://forum.xda-developers.com/showthread.php?t=2531374
Sent from my Nexus 4 using xda app-developers app

Just search the forum next time this problem is on every page and on every page and thread there is a solution...... You are not the first but hope you get it fixed

Install a custom recovery
clockwork or twrp

[Q] N4 stuck in boot loop after OTA update

Hello,
I saw that the OTA update to Lollipop was available on my phone today, so I went ahead and let it download. Upon completion of the download, it restarted and applied patches, then restarted again and has been stuck in boot loop for about an hour. After reading several other threads on how to try to reset the phone, I'm stuck. When I try power + volume up or down, the LED status indicator flashes red and I never get to any kind of other screen. Am I completely screwed? I previously had stock 4.4.2 with no modifications.

Finally was able to get to the bootloader menu. Apparently having the phone plugged into the charger was preventing me from getting there for some reason. I ended up having to wipe the phone to get it to boot

so you can get into clock recovery right? download nexus 4 toolkit..that might save your phone. I suggest you to unroot and flash everything to stock and then unlock again and start everything from scratch. good luck.

Similar issue on an OTA upgrade to an unrooted N4. It's stuck on the Lollipol boot screen with the rotating Circle thingies.
I can get to the Android System Recovery but there's no CWM or TWRP on my N4. I'm guessing a factory reset will fix it but is there a way to preserve my pics/files on the phone before doing so?

Sportfreunde said:
Similar issue on an OTA upgrade to an unrooted N4. It's stuck on the Lollipol boot screen with the rotating Circle thingies.
I can get to the Android System Recovery but there's no CWM or TWRP on my N4. I'm guessing a factory reset will fix it but is there a way to preserve my pics/files on the phone before doing so?
Click to expand...
Click to collapse
I guess TWRP Recovery has option to enable MTP and you can access the internal SD card by connecting mobile with computer using usb cable.
---------- Post added at 06:37 PM ---------- Previous post was at 05:37 PM ----------
Sportfreunde said:
Similar issue on an OTA upgrade to an unrooted N4. It's stuck on the Lollipol boot screen with the rotating Circle thingies.
I can get to the Android System Recovery but there's no CWM or TWRP on my N4. I'm guessing a factory reset will fix it but is there a way to preserve my pics/files on the phone before doing so?
Click to expand...
Click to collapse
Flash TWRP Recovery using fastboot.
1. If you have otg y cable, connect it and use file manager to copy all the files.
2. OTG method is failed then select “Mount”, then select only “Data” and connect your Nexus 4 to your computer and Enable MTP in TWRP. now you can use adb pull and push commands.

I ended up going the factory reset route, which wasn't really a bad thing. My photos had been backed up in dropbox and the play store remembered all the apps and were able to reload them. The only things I really had to do was reload some music onto the phone and re-enter passwords for apps.

Same story here: sideloaded the OTA zip file, then had bootloop. Tried a few approaches, but none worked. In the end only wiping the data was the solution for me. Lost some userdata in a few important Apps...

I went through this yesterday. The only way to get it to boot is a Factory Reset from Recovery. It works like magic, but sucks you lose the data.

Got the OTA yesterday and also got a bootloop(stuck in boot screen animation). I couldnt afford losing my photos/videos as i had no backup , so i figured out a super easy to get it to boot without wiping data .
I was unrooted with stock recovery running stock 4.4.2, bootloader was unlocked. I flashed CWM recovery through fastboot and wiped chache+ Dalvik from there then simply rebooted the phone .
I had already tried wiping cache from the stock Android recovery,needless to say that didnt work for me.
If anyone else is having the same problem please try the method above and report back, cheers!

I post this on Google Product Forum 2 days ago. Hope it helps
https://productforums.google.com/for...Q/wDzRUm4b2UsJ
(updated 29/11/2014)[not perfect but it is a SOLUTION]
The idea of this is to downgrade your nexus 4 without wiping your data, which means stuff you will need includes:
1. adb and fastboot on your computer (I am using mac but you can find it on windows as well. There are tones of website and forums telling you the latest method of getting it onto your computer)
2. factory image of nexus 4(I use 4.4.4, since that's what it was. I don't have the time and energy to try to do the same thing with lollipop. you can try can leave a comment).
update: do NOT try to flash 5.0 rom using this method. You will be stuck at boot loop again
3. usb cable
4. nexus 4 with unlocked bootloader(the process of unlocking bootloader will wipe your device)
5. computer
steps
1. unzip the factory image (something.tgz)
2. for me, after unzipping the .tgz, I still find another .zip inside. unzip that too.
3. hold vol+, vol-, and power button simultaneously to enter fastboot mode
4. open terminal(mac)(it would probably be cmd for windows)
5. connect your nexus 4(in fastboot)
6. to make sure it connect successfully, type "fastboot devices". if something like "005040c0d54bb291 fastboot" appears, you are good. Otherwise, try reconnect your device/boot to fastboot again/use another usb cable
7.now we need to tell the terminal to navigate to the location of the unzipped factory image. to do that, i suggest you put the unzipped folder to somewhere easy to find, like desktop. these are some commands to help you navigate:
"ls" allows you to look at whats inside the current directory of the terminal. For example, this is the output after typing "ls" for me:
some folder Photos
nexus4image.tgz how many folders do you have
5.zip occam-ktu84p
more folder occam-ktu84p.zip
after knowing where you are, use "cd" (below) to go to your folder
"cd" means change directory. For example. "cd Photos" will brings me to the "Photos" folder. And then if I type ls, I will see a whole bunch of photos in my photos. If you go to the wrong folder, type "cd ..", and it will bring you back to the previous folder.
8. flash bootloader.
enter the following command, BUT REMEMBER TO CHANGE THE NAME TO FIT YOURS(DIFFERENT VERSIONS HAVE SLIGHTLY DIFFERENT FILE NAME AT THE END(type ls first to help you type the correct name)
fastboot flash bootloader bootloader-mako-makoz30d.img
9. reboot bootloader. just copy and paste
fastboot reboot-bootloader
10. flash radio
enter the following command, BUT REMEMBER TO CHANGE THE NAME TO FIT YOURS(DIFFERENT VERSIONS HAVE SLIGHTLY DIFFERENT FILE NAME AT THE END(type ls first to help you type the correct name)
fastboot flash radio radio-mako-m9615a-cefwmazm-2.0.1701.03.img
11. reboot bootloader. just copy and paste
fastboot reboot-bootloader
12. flash system
system.img is located inside the zip, use ls to help you navigate. This steps takes the longest time, total time on this step is 87 seconds while the others are less then 1 second
fastboot flash system system.img
13. flash boot
boot.img is located inside the zip, use ls to help you navigate.
fastboot flash boot boot.img
14. flash recovery
fastboot.img is located inside the zip, use ls to help you navigate.
fastboot flash recovery recovery.img
15. format cache(not the memory, so everything should be fine)
fastboot format cache
16. reboot and wait
this will reboot your device. You probably have to wait for a while to initialise all the apps. after than you are good to go!
fastboot reboot
credit: my friend for giving me this idea + http://forum.xda-developers.com/nexu...image-t2010312 + HelpMyNexus

[Q] LollIpop installation failed: stuck in "No command"

Hi guys!
This is my first time on this website and I'm here because I need the help of you!
Yeah, I do have a Nexus 7 (2012), it was on 4.4.4 root. Of course, like an idiot, when I saw the OTA of Lollipop, I download it and install it right away. Of course, I didn't unroot before...
So yeah, actually, I'm stuck in a loop between the tablet rebooting and the "No command" section (I guess it's name recovery)
All this was yesterday. That night, I tried everything I could try from my expertise. I've used the Nexus Root Toolkit to flash stock + unroot but with no succes. The main problem is that the only way for my N7 to be recognize by my computer is by "Apply update from ADB" (Sideload from recovery). So my driver aren't good for beeing use with the NRTK and I can't do anything... Then, I can't fastboot or anything, if I try something, It keep rebooting up.
So I hope I've been enough clear. (I'm french so )
Please, take the time to help me! This N7 is very important for me!
Sincerely,
Gabriel

I tried the OTA update on modified stock android, and it failed locking me out, it would boot loop 3 times, then go to the 'No command' - you need to hold all three buttons, power and both the volumes when it's turned off, then it should boot into fastboot with recovery options. If you are stuck on 'no command' - if you hold power and volume up you'll get some options including reboot.
So from fastboot, I didn't do anything here because recovery didn't work for me, but if you are in fastboot, I connected it to my PC and opened nexus toolkit - I had no ADB access but fastboot was available, so I had to flash individual images using that software. So I downloaded the IMG files for android 5 for the nexus 2012 manually, its a tgz archive, extracted it and there was another tgz archive inside which had the individual files I needed to flash. Boot.IMG and system.IMG are the main ones.
In nexus toolkit I went to Advanced and in the first column near the top I clicked Fastboot, then in the next column at the top, I clicked the permanent option, and below that in the middle column it lists all the android flashable files, boot, recovery, system, user data. These will match your files in the archive that was inside of the IMG archive you downloaded from google, boot.IMG, recovery.IMG, system.IMG, user data.IMG. I only needed to do flsash boot and system, recovery didn't work as it said it needed ADB access, and I didn't do user data as I don't think it was important and it wasn't necessary.
I naturally flashed boot.IMG first, then I had to flash the system.IMG twice as it didn't seem to do anything the first time. The second time it took 2-3 minutes then rebooted, and started booting into Android 5, the first boot will take 10 minutes.