Hi, When I first got my M1 note, 188.8.131.52A was on it and GPS was working great, fast lock, connected to like 18 out of 23-25 satellites, accuracy was 5M.
Then I upgraded to 4.5.5 and later to 4.5.7, till then I had GPS problems, phone connects to 17-18 satellites but my accuracy is 30M when idle ( not moving ) and 100-150M while driving. I downgraded to 184.108.40.206A again but problem still remains, I used clear data in recovery.
Any possible help? Thanks!