Settings
Dual SIM settings
You have following options listed under Dual
SIM settings:
Dual SIM open: This option activates
both the SIM cards.
Only SIM1 open: This option
activates only SIM1.
Only SIM2 open: This option
activates only SIM2.
Flight mode: This option disables all
RF and Bluetooth based
communication for both SIM1 and
SIM2, however, enables you to use
other features/functions of the phone.