The GPS issue seems strange to me, this shouldn't be an issue on the i777, which only has a handful of radios to use... unless there's a radio difference in-between the i777 and the s959g?
I'm currently on i777UCMD8, and am not experiencing ANY gps lock issues at all. I normally have lock within twenty seconds. I live on the east-coast, but my wife and I both used GPS apps while in Northern California recently.
Based on the posts (dated mid-may of 2014) it seems that GPS was completely broken for only SOME users.
If this issue is only affecting a handful of users, and NOT in a systematic way, then I'm not sure that there is anything to fix.
Is anyone else experiencing such GPS issues?
posts from i9100 affected users:
http://xdaforums.com/galaxy-s2/development-derivatives/rom-slimsaber-i9100-t2350201/post52870437