this example to change network for single sim card To > GSM
commamd mode
adb shell settings put global preferred_network_mode 0
change network for dual sim cards > solt1 to > CDMA
commamd solt1 mode
adb shell settings put global preferred_network_mode0 5
change network for dual sim cards > solt2 to > LTE
commamd solt2 mode
adb shell settings put global preferred_network_mode1 1
شوف الصورة واتتبع الشرح....
