Originally Posted by Muero
Still cannot understand differences between GSM Preferred and GSM Only.
Can someone explain it to me please?
You'd better choose WCDMA preferred for SIM2
For SIM1 better to choose GSM only , in that case phone will not try to connect TDSCDMA and not spend battery resource
GSM preferred - will use GSM as priority
GSM only - will use only GSM , no other standard will be tried to connect (in case of support, of course)