No operating system installed - Nexus 7 Q&A, Help & Troubleshooting

I tried to install a new rom after updating TWRP 2.3.0.0. after all was complete it stuck on the boot screen. I then tried with the Nexus Root Toolkit to use a restore from backup. Same problem. I then tried to flash stock and unroot. Same problem. I then tried a number of things through TWRP from backups I had their. Same problem. At present I have no OS and I can only boot into TWRP, turn if off or look at the GOOGLE screen. I have run out of ideas and would appreciate any help offered.

If you have tried everything else (flashing a ROM zip etc.) Then you should flash the factory image from Google.
Don't use the script/batch file as that will wipe your internal storage.
Just flash system and boot.
Sent from my Nexus 7 using xda premium

Sometimes a rom takes a long time to boot for the first time, please be very patient. Also, try wiping everything from /system, and then re install a custom rom from your /sdcard partition. also make sure your roms are for the nexus 7 not galaxy nexus or other similar devices. ONE MORE THING 4.1.2 wont flash with 4.1.1 bootloader.

jmtend said:
I tried to install a new rom after updating TWRP 2.3.0.0. after all was complete it stuck on the boot screen. I then tried with the Nexus Root Toolkit to use a restore from backup. Same problem. I then tried to flash stock and unroot. Same problem. I then tried a number of things through TWRP from backups I had their. Same problem. At present I have no OS and I can only boot into TWRP, turn if off or look at the GOOGLE screen. I have run out of ideas and would appreciate any help offered.
Click to expand...
Click to collapse
There was a bug in TWRP V2.3.0.0 use fastboot to flash V2.3.1.0 and then reflash the rom
Sent from my BAKED Nexus

spaceman860 said:
There was a bug in TWRP V2.3.0.0 use fastboot to flash V2.3.1.0 and then reflash the rom
Sent from my BAKED Nexus
Click to expand...
Click to collapse
Got it working. Thanks all for your suggestions.

jmtend said:
Got it working. Thanks all for your suggestions.
Click to expand...
Click to collapse
How did you fix it? I have no OS and my internal SD card was erased too I don't know how to flash from fastboot

Adb push a ROM.
-Brought to you by Marino's Nexus 7-

AshleyPem28 said:
How did you fix it? I have no OS and my internal SD card was erased too I don't know how to flash from fastboot
Click to expand...
Click to collapse
I know many people hate the talk about toolkits but I was in the same situation and I used Wug's toolkit and it saved me. I downloaded 4.1.2 image directly from Google, as the toolkit only has 4.1.1.
I tried to return to stock on my own and it just went from bad to worse. I would of spent more time trying to fix it on my own but I was on a very tight time constraint. It will unroot your device but it is easy to root again.
Sent from my Nexus 7 using xda app-developers app

Billchen0014 said:
Sometimes a rom takes a long time to boot for the first time, please be very patient. Also, try wiping everything from /system, and then re install a custom rom from your /sdcard partition. also make sure your roms are for the nexus 7 not galaxy nexus or other similar devices. ONE MORE THING 4.1.2 wont flash with 4.1.1 bootloader.
Click to expand...
Click to collapse
THANK YOU the "ONE MORE THING" is all I needed to know for the same problem!

Related

Unable to default factory reset

Hi guys. I have been trying to fix this problem for like 10 hours but I could never get it right.
Device status: Rooted, unlocked bootloader.
Currently my problem is that whenever I factory reset my device it goes back to CWM recovery. I tried using mskip toolkit and Wug toolkit to flash back to stock rom but it didn't work. The thing I realized is that I could never mount my sdcard from the CWM recovery.
Besides that, whenever I push some files into my sdcard through Windows and reboot my Nexus 7, the file gone missing. I also tried to install and uninstall app and it seems to be working at first, but it goes back to the default state after rebooting it.
By the way, I am able to fastboot it and enter CWM recovery and boot like normal, but could never edit anything on it, not even flashing.
Things I have done:
-Flash stock rom(full zip file) using mskip and wug toolkit.
-Flash stock rom part by part(boot,recovery,system,userdata)
-Boot image using TWRP and wipe data.
-Flash custom rom using toolkit(Bugless Beast).
-Downloaded twice for the stock rom and checked with md5sum.
Things going on now:
-Back to same state no matter what I do to the device.
Sorry for my English.
Anyone help please?
Hmm that is kind of weird, what system are u using? Windows Mac or Linux?
Try using Nexus 7 Toolkit 2.0, it works great in my case :s Restore to stock rom using it. Also check the console if there are any bug report.
Btw you could try to lock/unlock your bootloader as it wipe all user data at the same time
Good luck!
Sent from my Nexus 7 using xda premium
jamesst20 said:
Hmm that is kind of weird, what system are u using? Windows Mac or Linux?
Try using Nexus 7 Toolkit 2.0, it works great in my case :s Restore to stock rom using it. Also check the console if there are any bug report.
Btw you could try to lock/unlock your bootloader as it wipe all user data at the same time
Good luck!
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Thanks for the reply! I have tried both mskip and Wug toolkit and it doesn't work.
The data inside the device is basically uneditable right now! No matter I delete or add in new files and reboot, files that deleted will be back while the files that I added in will be removed. Seriously I need some help, I'm unable to flash rom or do anything with it since I have unlocked the bootloader(and unable to lock it back) and warranty is voided.

I think BRICKED MY PHONE

I was trying to install CM10.1 for the 10th time and again it didn't work- I was stuck at the CM10.1 boot animation (I tried wiping my whole device, the cache everything). Then I decided to wipe the ROM (using TWRP) and my phone will no longer bootup at all- it is stuck at the "Google" logo. Help
All my Nandroid backups are gone... wtf do I do- is my phone broken for good?!?!?!?! :"O
Fastboot. Flash stock images. There are tutorials if you Google.
Sent from my Nexus 4 using Tapatalk 2
so, instead of wiping data(factory reset), you actually wiped the whole phone clean. you need to install adb on your computer, boot into your recovery, connect to your computer via usb, use the adb option to move your rom/gapps to your phone, then flash them via your recovery. you lost your data btw, youre gonna start fresh. next time, be careful.
If you can get to the bootloader you can flash factory images. Just out of curiosity, if it wasn't working why did you keep trying 10 times?
Sent from my Nexus 4 using xda app-developers app
simms22 said:
so, instead of wiping data(factory reset), you actually wiped the whole phone clean. you need to install adb on your computer, boot into your recovery, connect to your computer via usb, use the adb option to move your rom/gapps to your phone, then flash them via your recovery. you lost your data btw, youre gonna start fresh. next time, be careful.
Click to expand...
Click to collapse
Use toolkit to flash factory image lol
Underground_XI said:
Use toolkit to flash factory image lol
Click to expand...
Click to collapse
you know, ive got a bit of irony for you. a bit back, i had to flash the factory image at like 3am. i was a bit intoxicated and feeling lazy, so i decided to use a toolkit. i spent about an hour on it, kept getting errors and other issues with the toolkit itself. it never flashed anything. before i fell asleep, i took the 10 minutes to flash the factory image via fastboot
at4r1 said:
If you can get to the bootloader you can flash factory images. Just out of curiosity, if it wasn't working why did you keep trying 10 times?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Because I really wanted to try CM10.1 and I was trying different ways. I cleared the cache and tried, then cleared the Devk(something) cache and tried, and factory reset my phone too, it all didn't work- so I tried this and f'ed-up my phone
Underground_XI said:
Use toolkit to flash factory image lol
Click to expand...
Click to collapse
Since I was trying to flash CM10.1 can I just flash it with the Gapps from the get-go when my phone has no OS on it? Or does it need to have jelly bean ?
michaelsp9 said:
Since I was trying to flash CM10.1 can I just flash it with the Gapps from the get-go when my phone has no OS on it? Or does it need to have jelly bean ?
Click to expand...
Click to collapse
Like others said earlier I would flash the stock images with fastboot.
Tutorial is here: http://forum.xda-developers.com/showthread.php?t=2010312
It's a good thing I made a titaniumbackup and sent it to my drive before all this- at least I won't lose all my apps

For Those Who Semi-Bricked Their Nexus 7 0MB Interal Storage

Hopefully this helps people in my situation.
So on the first day of having my nexus 7 i found a way to have no OS and 0MB internal storage showing in TWRP. Yah i suck.
I tried tons of things but knew a system image was needed.
HOW: I was about to flash the superuser root for 4.3 newly released and forgot to put it on nexus so i then proceeded to exit TWRP, however upon exiting TWRP the recovery detected i havent installed supersu and asked do i want to install superuser? I though why the hell not!
I confirmed to install superuser and then tried to reboot but for 20 minutes device could not boot. TWRP showed 0MB internal storage and pushing adb files in this state yielded nothing as there was no directory
This is how i managed to have a working tablet again
1. FORMAT DATA in TWRP - after doing this your internal storage should be back and not show 0MB
2. reboot to the bootloader
3. On your computer download this file kindly given to us by phuduong and uploaded by Nburnes
https://mega.co.nz/#!PBIiEbBJ!bKpdHxegOVlde12nsu_ulEyRq7UsANLLQab1IZjLIGc
Credit to Nburnes http://forum.xda-developers.com/member.php?u=2918596[/QUOTE]
4. Once downloaded move that system.img file to your adb directory
5. With you nexus 7 in the bootloader, adb open, and file downloaded copy and paste this command into adb terminal
fastboot flash system system.img
6. Now you have an OS but it still would loop and wouldnt start
7. Boot into recovery and Format Data again, because for me 0MB interal storage was back again
8. Then Factory Reset
FINALLY YOUR DEVICE SHOULD BE BACK TO ITS ORIGINAL STATE!!!!!
Is that the factory image? Have you tried going from unlocked bootloader & rooted back to factory using that image?
plbelanger said:
Is that the factory image? Have you tried going from unlocked bootloader & rooted back to factory using that image?
Click to expand...
Click to collapse
Google has yet to release the official factory image for the new N7. However, a kind user was gracious enough to make their own. It is likely to be almost identical to what Google will eventually release and should work the same way.
Thank you! Thank you!
good stuff OP. glad you got it working again
You all are life savers! 1000X Thanks!
I tried running through this, but it didn't work for me. I think my situation is different though because I tried to install a factory image for the 2012 nexus, and during part of that process I ran the "flash-all" script which starts by deleting boot, cache, recovery, userdata, and system.
I think deleting boot screwed me up, because even though I can go into recovery now after reinstalling twrp and I can restore my system using system.img, I still can't boot (get stuck on the google logo). Any way to fix that?
So you first tried to restore from the OLD Nexus 7 Image?????
Sent from my Nexus 7 using xda app-developers app
petersellers said:
I tried running through this, but it didn't work for me. I think my situation is different though because I tried to install a factory image for the 2012 nexus, and during part of that process I ran the "flash-all" script which starts by deleting boot, cache, recovery, userdata, and system.
I think deleting boot screwed me up, because even though I can go into recovery now after reinstalling twrp and I can restore my system using system.img, I still can't boot (get stuck on the google logo). Any way to fix that?
Click to expand...
Click to collapse
So you first tried to restore the OLD nexus 7 factory image? Probably gonna have to wait for factory image or exchange yours
Sent from my Nexus 7 using xda app-developers app
jporter396 said:
So you first tried to restore from the OLD Nexus 7 Image?????
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Yes, I tried to restore from the old image. Obviously fastboot wont let you install the old image, but I didn't realize that until boot, system, cache, etc. were deleted
THANK YOU!!!
This worked perfectly! I had a wiped system folder (no ROM), and obviously no USB debugging enabled. And with the lack of a factory image, I've been counting seconds to seeing somebody post this!
Just follow the instructions carefully. Thank you guys!
petersellers said:
Yes, I tried to restore from the old image. Obviously fastboot wont let you install the old image, but I didn't realize that until boot, system, cache, etc. were deleted
Click to expand...
Click to collapse
You can flash old and new image through fastboot. I did 2 times ^_^
This is boot.img for who need
BOOT.IMG HERE
It gives me a fail when I try to wipe data.
Edit: never mind
jarjar124 said:
It gives me a fail when I try to wipe data.
Edit: never mind
Click to expand...
Click to collapse
How did you fix it? I still cant wipe data.
Balsta said:
How did you fix it? I still cant wipe data.
Click to expand...
Click to collapse
Have you formatted first?
Sent from my Nexus 7 using xda app-developers app
jporter396 said:
Have you formatted first?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
I can't, get an error with that too
Sent from my SCH-I545 using Tapatalk 4 Beta
OP and nburnes saved my butt!
I did this and now it seems my device is booting and it shows up as N7 when I attach it to my PC. But the display shows nothing at all. It just goes blank after the Google screen. Any ideas?
After flashing everything I could think of and banging my head and the device against the wall for two hours, I finally got it to work. Not sure how exactly but the last thing I did was reflashing bootloader. So if anyone has the same problem, try that.
Thank you.
Note:
Give step 6 a little time be patient.
All main JSS15J .IMGS here: http://forum.xda-developers.com/showthread.php?t=2381438
Glad this helped some of you guys!

[Q] possibly fully bricked phone need help!

I went from Paranoid Android 4.2.2 to the first Cyanogenmod 10.2 nightly and my phone worked great on the first boot, after rebooting it gets stuck on the google screen. I have tried going into recovery and wiping it etc. re-flashing stuff and can't, I have tried using the root toolkit to revert to stock 4.3 and unroot and 4.2.2 and unroot and neither has fixed it. I've even tried manually reverting to the stock bootloader etc and nothing. Theres no option for mounting storage to the pc with TWRP so I can't try redownloading the CM10.2 zip file either.
The point is I really need help as I think my problem is a rare case I can't find on the forums already.
Have you tried MANUALLY restoring Google's factory images? (With the fastboot command.)
Sent from my Nexus 4 with Tapatalk 4
SiMBol10 said:
I went from Paranoid Android 4.2.2 to the first Cyanogenmod 10.2 nightly and my phone worked great on the first boot, after rebooting it gets stuck on the google screen. I have tried going into recovery and wiping it etc. re-flashing stuff and can't, I have tried using the root toolkit to revert to stock 4.3 and unroot and 4.2.2 and unroot and neither has fixed it. I've even tried manually reverting to the stock bootloader etc and nothing. Theres no option for mounting storage to the pc with TWRP so I can't try redownloading the CM10.2 zip file either.
The point is I really need help as I think my problem is a rare case I can't find on the forums already.
Click to expand...
Click to collapse
Use efrant's guide to go back to 100% stock and start again
EddyOS said:
Use efrant's guide to go back to 100% stock and start again
Click to expand...
Click to collapse
AlbertoWayfarer said:
Have you tried MANUALLY restoring Google's factory images? (With the fastboot command.)
Sent from my Nexus 4 with Tapatalk 4
Click to expand...
Click to collapse
Thank you both so much it works again!
Good
Sent from my Nexus 4 with Tapatalk 4

Nexus 4 stuck on Google screen and twrp

I had the paranoid android rom on my nexus 4 and i tried to install a new rom. the zip must have corrupted because while installing it it failed. And now it wont boot. It goes to the google screen, shuts down, then launches into the twrp menu. Yes i factory reset and wiped before i tried to install. What can i do? I have no bootable rom on my nexus 4 right now?
anyone? Basically my nexus 4 wont boot. I want to mount the nexus 4 using twrp so i can trasfer a rom file over but it wont mount. Any help?
rmhumtex97 said:
anyone? Basically my nexus 4 wont boot. I want to mount the nexus 4 using twrp so i can trasfer a rom file over but it wont mount. Any help?
Click to expand...
Click to collapse
Did you try a 4.4 rom by any chance? there are 1,000's of post to use CWM to be safe, and did you back up you previous rom to restore from TWRP?
If you still have a 4.4 rom zip on you device look for help on flashing CWM http://forum.xda-developers.com/showthread.php?t=1993331
If all else fails you can also try a factory reset http://www.wugfresh.com/nrt/ there is an option to tick on soft-bricked / bootlook in Wugs toolkit.
You can't "mount" your nexus 4. You can use adb to push the appropriate zips over. Or use fastboot to flash .imgs.
Timboe73 said:
Did you try a 4.4 rom by any chance? there are 1,000's of post to use CWM to be safe, and did you back up you previous rom to restore from TWRP?
If you still have a 4.4 rom zip on you device look for help on flashing CWM http://forum.xda-developers.com/showthread.php?t=1993331
If all else fails you can also try a factory reset http://www.wugfresh.com/nrt/ there is an option to tick on soft-bricked / bootlook in Wugs toolkit.
Click to expand...
Click to collapse
Yes i did try a 4.4 rom. I noticed that soft bricked thing in wugs toolkit right before i saw this post, so yeah thats what im doing right now. I should have tried the flashing cwm thing because i do have the 4.4 rom on my device, but ill just wait until google releases it or its stable.
rmhumtex97 said:
Yes i did try a 4.4 rom. I noticed that soft bricked thing in wugs toolkit right before i saw this post, so yeah thats what im doing right now. I should have tried the flashing cwm thing because i do have the 4.4 rom on my device, but ill just wait until google releases it or its stable.
Click to expand...
Click to collapse
I'm using the Nexus 5 port atm and it is stable, i used to skim over the instructions but that extra 5 minutes of reading the flashing instructions will save you hours of searching for a way to get out of a error.
3 options:
1. Adb sideload the things you'd like to flash.
2. Adb push the files onto the device while in recovery.
3. Fastboot flash the factory images.

Categories

Resources