Originally Posted by spodie
Can I use nv backup on a nexus 5 to restore a lost/corrupted imei?
Sent from my Nexus 7 using xda app-developers app
You'll wanna check out the EFS Backup solution here: http://forum.xda-developers.com/show....php?t=2514095
or TWRP offers an EFS backup as well. Not sure of other recoveries and TWRP does everything I need it to do, and well.
But if it is already corrupted...yikes. I haven't seen any tools to fix that on the Nexus 5. Remember some in the Samsung forums, but not helpful here...
Some people had success with just fastboot flashing the stock cache.img file, though depends on what borked it in the first place.
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