crwdns2934241:0crwdne2934241:0 Cooper
crwdns2934249:0crwdne2934249:0:
It sounds like you have tried the Network Settings Reset (Settings > System > Reset > Network Settings > Reset > Reset settings) and changed the SIM card. Since the issue began after a repair to fix a charging issue, perhaps your friend could check to see if a part within the phone was damaged during the repair process.
crwdns2915684:0crwdne2915684:0:
open