Originally Posted by CustomROMs
Every now and then, I completely loose signal during a call on my I9100. The signal comes back within a few seconds but the call is dropped. I am running CyanogenMod 11.2 M9. Anyone have similar issues or a potential solution?
You should try another modem.
In one of the posts in this forum, I have even read that if the battery is really old then it doesnt pass enough energy/charge to hold the signal. You could try with another battery if yours is quite old.