So can your M1 4g card in sim 1 call? Seems like my sim card in sim 1 can only access 4g but not 3g. So no 3g cannot call at all on sim 1. Super funny this flagship phone. Lol. Very confusing.
Can ah, in fact just made a call to Singtel. Are you able to perform USSD code when in 4G? Normally my M1 will drop to 3G after dialling *100#.


