Model: ZE620KL
RAM: 4G
Firmware/APP Version: LAST 1905.100
Frequency of Occurrence: always
Rooted: No
APP Name:
Hi, I'm from Brazil and I'm having problems with the 4G signal
from the VIVO operator. when the sim card is inserted in slot 2,
the 4G works normally when the device is switched on,
but if I switch the sim card to slot 1,
the 4G does not work when the device is turned on.
It is necessary to turn airplane mode on and off for 4G to work.
This only happens with the VIVO operator chip. Please solve this kind of thing, that annoys me. This will surely be my last ASUS