blackadept - excellent post! I started down this path about a week ago trying to read up on creating the nvs_map.bin calibration file but quickly got discouraged as I don't operate at the same level of awesome as you do! I would love to see a writeup on what you did to make it "persistently persistent" (lol!) Keep up the great work and don't be afraid to ask me or any of the others here for help. I don't mind bricking a phone in the name of progress! This post will probably be watched very closely by many people that are in the same boat as us - get some rest and be sure to keep us updated! We'll all be impatiently waiting patiently for any good news to turn up to solve this ridiculous problem!