SIM1 is disabled after using a secrete code *#*#4636#*#* and change set preferred network type to GSM/CDMA auto (PRL) (after restarting mobile). It automatically set to a network type unknown. When I try to enable SIM1 to menu > settings > dual sim settings > configure dual card > sim 1 card it gives me error message "the process has stopped unexpectedly please try again". I tried every thing 1)apply factory update. 2)Reset factory setting. 3)Wipe cash partition and then apply factory update. 4)Wipe data/factory reset. Any suggestion............ Please Need Help.