Nexus 7 Bootloop, tried switching to F2SF... - Nexus 7 Q&A, Help & Troubleshooting

So i downloaded TWRP 2.8.2.0 on my Nexus 7 4.3.3, i was rooted and everything. Then wiped my system in recovery.
After that i went to Advanced wipe and changed all the partitions to f2sf except internal storage, i was then going to flash my Slimkat rom, but then i couldnt access any folder! Tried a reboot but now it wont start... Can acces fastboot and so, but what do i do??
EDIT: So now i wiped them back to ext4, but when i pressed reboot twrp sais i had no OS installed? What to do?
Thanks for any help

You can still go back to the bootloader I assume so when you're on it connect your Nexus to your computer and run the Nexus Toolkit to flash Google Factory Image. Then you'll have to do the same steps as before, reflash a recovery, root and then flash the rom you want to use.

Related

[Q] [Need help please] formatted /sdcard by mistake...

Hello
I formatted /sdcard on recovery mode by mistake, was going to format /data, /system and /cache
now I lost all of my backup and ROM files and my N7 stuck at Google icon when reboot.
recovery and bootloader can still access....if that help.
Any way i can get my baby to boot up like it used to be? or How to put files back to N7? (maybe I can install the ROM if it's there?)
Thanks in advance >___<
First make sure you have the Nexus 7 plugged into a PC while attempting to start bootloader and choosing recovery. You might be able to do a factory reset from there. Wipe data, cache and dalvik. You may want to hit 'Fix Permissions' last just in case, then reboot. If you're familiar with ADB and fastboot you can find info on flashing stock images here http://forum.xda-developers.com/showthread.php?t=1907796. If neither of those helps you'll need to go to this post http://forum.xda-developers.com/showthread.php?t=1766475, download and install the toolkit and choose 'Flash Stock + Unroot' with the option 'Soft-Bricked, Bootloop' (assuming that is still the case) checked. It will ask which image to download, pick the latest (4.1.2). You shouldn't have to relock the bootloader. From there it's just like stock so play with it as you like, just watch what you're wiping, lol.
Thank you very much!!!!
everything work now.

Factory image wont boot

I flashed the latest 4.2.2 factory image from google. but it wont boot. stuck at ''X'' boot animation. I can access bootloader. I have tried several times but no luck. it still stucks at boot logo. then i flashed team win recovery and tried to install a custom rom(xenon hd stable 6.0) by pushing rom files by adb. But unfortunately recovery cant factory reset or wipe the cache. it fails. and even it fails to flash the custom rom zip file. Now i have fallen in a completely stupid situation. Please somebody help. Before flashing i was in xylon rom with twrp recovery. Before that i had cwm recovery. But I thought flashing factory image will completely wipe everything. But I cant figure out why it is happening. Please help.
I figured out something ! I have flashed CWM 6.0.23 recovery now. and it says it cant mount anything. I think there is the problem. What can i DO ppl?
Flash the stock recovery and clear cache.
Solved
Solved !!
At first I tried all types of ''mounting sd card'' process in adb. none worked.
Finally
in CWM recovery > Mounts and storage > format /data and /data/media (/sdcard) [ not to be confused with the full ''format /sdcard'' option ]
and it worked. Thanks BTW

[Q] Stuck while flashing kitkat 4.4 on nexus 4

Hi,
so i followed the steps to flash android on my nexus using ClockworkMod recovery.
I did the following steps and now I am stuck. my phone wouldn't load and I cant do anything about it
1. Bootloader was unlocked and I installed the clockworkmod recovery.
2. backed up my phone
3. I copied the ROM zip file to storage of the phone. (I cant find it through recovery now)
4. rebooted into recovery mode
5. did the nAndroid backup (which is not working now and hence my phone is spoiled)
6. performed complete wipe of the device including factory reset, cache partition and dalvik cache.
the problem is that I cant restore the nAndroid backup which i created using the recovery any more. I also tried mounting the USB storage using recovery but it still doesn't work.
I am also not able to see the phone as a Storage device in my computer any more otherwise I could load the ROM file again and try.
Please suggest any ideas or solutions.
Regards
error while restore
Whenever I am trying to restore the backup it shows error "MD5 mismatch"
junaid1788 said:
Hi,
so i followed the steps to flash android on my nexus using ClockworkMod recovery.
I did the following steps and now I am stuck. my phone wouldn't load and I cant do anything about it
1. Bootloader was unlocked and I installed the clockworkmod recovery.
2. backed up my phone
3. I copied the ROM zip file to storage of the phone. (I cant find it through recovery now)
4. rebooted into recovery mode
5. did the nAndroid backup (which is not working now and hence my phone is spoiled)
6. performed complete wipe of the device including factory reset, cache partition and dalvik cache.
the problem is that I cant restore the nAndroid backup which i created using the recovery any more. I also tried mounting the USB storage using recovery but it still doesn't work.
I am also not able to see the phone as a Storage device in my computer any more otherwise I could load the ROM file again and try.
Please suggest any ideas or solutions.
Regards
Click to expand...
Click to collapse
Okay, first what rom are you flashing. And did you do a factory reset in the recovery before you flash it?
By flashing in custom recovery means you are flashing an unofficial version of KitKat, because normal you use fastboot method to flash the factory image from Google. Try using this stock rom from fireb33: http://forum.xda-developers.com/showthread.php?t=2010887
Secondly, did you flash the latest version of CWM recovery: http://forum.xda-developers.com/showthread.php?t=2198942
If you used latest recoveries and factory reset, and it still doesn't boot, then backup your nandroid and use the fastboot method to flash the factory stock image (link in my sig).
To backup your nandroid, you need to locate where it is and use "adb pull" command, try this: adb pull /data/media/clockworkmod/ C:\backup\
The MD5 mismatch means your file is not original or corrupt, it could be due to various reasons.
Nexus devices do not have microSD card so they cannot use the mount USB storage feature.
I am willing to bet most of your issues could be avoided by using TWRP recovery instead of CWM. Get it here: http://techerrata.com/browse/twrp2/mako, flash it in fastboot by "fastboot flash recovery twrp.img", it is not compatible with CWM nandroid.
If you neeed to send certain files to your phone, don't forget the sideload feature if you want to flash a zip file from your computer. Enable sideload in your recovery, and type: adb sideload *.zip
junaid1788 said:
Hi,
so i followed the steps to flash android on my nexus using ClockworkMod recovery.
I did the following steps and now I am stuck. my phone wouldn't load and I cant do anything about it
1. Bootloader was unlocked and I installed the clockworkmod recovery.
2. backed up my phone
3. I copied the ROM zip file to storage of the phone. (I cant find it through recovery now)
4. rebooted into recovery mode
5. did the nAndroid backup (which is not working now and hence my phone is spoiled)
6. performed complete wipe of the device including factory reset, cache partition and dalvik cache.
the problem is that I cant restore the nAndroid backup which i created using the recovery any more. I also tried mounting the USB storage using recovery but it still doesn't work.
I am also not able to see the phone as a Storage device in my computer any more otherwise I could load the ROM file again and try.
Please suggest any ideas or solutions.
Regards
Click to expand...
Click to collapse
the only optionyou have is to flash a factory image through fastboot..head over here --> Click Me
i downloaded the factory image from google extracted then did the same fastboot flash as the 4.3 but switched the names to the files in the krt16o zip. it worked perfectly for me. tried using wugs toolkit and everything went to crap. i say do the same method as 4.3 but rename all the files accordingly.
XDA FORUMS.. 3 words.. YOU GUYS ROCK !!!!!! :victory::victory::victory:
this post HERE saved my life

Nexus 7 (2012) bootloop - rom passed sha1 check, twrp recovery

Hi,
I was using Slimkat 4.2 with TWRP recovery. Wanted to update to the latest stable build. Did so. Now I'm stuck in a bootloop.
1) I restarted in bootloader, went to advanced wipe and wiped system, dalivik cache and cache.
2) Then I flashed the file (Slim-grouper-4.4.4.build.7.0-OFFICIAL). Sha1 check out. My device is a nexus 7 2012 (non 3g).
3) on top of that, I flashed the latest gapps normal.
Bootlooped.
1) I'm able to enter into bootloader.
2) I do not have a backup of my previous instal
3) I am unable to mount usb through the twrp mount interface.
Could somebody help me here? I seem to be making a lot of mistakes with this after successfully flashing my phones for years (just recently I got a "enter password to decrypt device" on the same nexus 7 that I got through by formating through twrp.
Should I try wiping and flashing the rom again, without the gapps? (By wiping system, dalivik cach and cache)?
Are there other methods I could use?
Help would be greatly appreciated!
Please note that I can easily get into fastboot mode. When I'm at fastbook, should I just try to return to stock? I'm not exactly sure how that would work given that I have a custom recovery and rom installed.
Should I try to use sideload adb to instal the rom/original rom for the device again?

[Q] Data gone, Android wants password to decrypt

So, my Nexus 7 is stock rooted, running TWRP, M-Kernel and data-f2fs. I flashed CM12 with MultiROM and tried to boot it, however it didn't boot, just stayed at the Google screen. I tried to boot both regular TWRP & MultiROM TWRP, & It didn't boot either. I fastboot flashed stock recovery, cwm, and stock kernel. All of them booted fine, except the stock kernel, which didnt boot cause data was f2fs. Eventually, I just tried flashed M-Kernel again in cwm with adb sideload & It didn't work. So, I manually edited the M-Kernel boot.img on my PC for data-f2fs, since the one in the zip is all-f2fs, and flashed it & TWRP with fastboot. Both Android & TWRP finally booted! However, my data partition is corrupted. Android wants a password to decrypt, and TWRP detects it as ext4. How do I fix my data partition without formatting it?
Nvm, I'll just fastboot format data.

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