Hello! I used semi-restore to clean my iPhone 4s. I had to use semi-restore twice because tweaks and sources in cydia were still there after the first try. I reinstalled everything, apps and tweak and everything seemed to run nicely. Everything except gps which was totally unusable. Signal was lost every 2 seconds while before the semi-restore everything was fine for GPS. Therefore I ran semi-restore again to check if gps was ok in an empty device. Again, signal was not stable at all and native GPS was unusable. I tried some things and I found out that deactivating 3G resolves the problem GPS signal is perfect then but when I activate 3G again, signal is out again... Did anyone experienced this issue ? Do you have any idea how to resolve it ? Thanks for your help !