Help Reboot problem - Failed to mount cache (Boot loop)

[Sherifoz]

Hi guys,

I'm seeking your help in assisting me getting my tablet works again. It's Nexus 7 2012 with last updated Android version 5.1.1 (LMY47V). The problem started when the tablet suddenly restarted and the loading intro (that appears after Google's logo) didn't change for long time. I entered the recovery mode and tried to wipe cache partition unfortunately which made my problem worse! upon reboot I only get the Google logo repeatedly with no change!

The recovery logs are as follow:

E: failed to mount /cache (invalid argument)
E: Can't mount / cache/recovery/log
E: Can't open / cache/recovery/log

I've searched on the forum and found an opinion that I should download the Android Image from the developers.google website and unzip till I find a cache.img file, but it wasn't there after I've extracted the image zip file.

I've important data that I need to retrieve from the tablet. What should I do? Taking into consideration that I didn't unroot the tablet but I did make the undebugging step before (working with pdaNet).

Thank you very much in advance!

 

[Sherifoz]

Can anyone help??

 

[El Presidente]

You could try reflashing the firmware using a factory image, but you'd lose the daat you want to keep. I don't think there's any way of getting back in to the tab without losing data, sorry.