1. Check C2238 = VR 2 >> 2,78 v for TX
C2234 = VR 6 >> 2,78 v for TX
C2235 = VR 5 >> 2,78 v for RX
C2236 = VR 4 >> 2,78 v for RX
C2233 = VR 7 >> 2,78 v for RX
C2237 = VR 3 >> 2,78 v for Synth can cause dead if not exist
Make sure all power signal are correct 2.78 volt
if one of the power signal fails , (low then 2,78v or no 2,78v) means the phone are no signal
then U must make this jumper shown bellow
ps : I'm not responsible for the effect by using this jumper solution,however
this solution is proven works fine on most 6275i,but not all.
and effects may occurs after make this jumper,like low battery during call
progress,restart,and other unkwon failure.