Wondering if anyone had a method for backing up the EFS partition on an HTC One M8. I'd recently lost the IMEI on my AT&T Galaxy S III sometime while flashing 4.4.2 nightlies without first backing up the EFS. For the past month, I've tried all the methods that I could find to try to restore it, to no avail.
So, I give up & order the HTC One M8. But before I go flashing anything, I really want to back up the EFS.
So, I give up & order the HTC One M8. But before I go flashing anything, I really want to back up the EFS.