Xiaomi Redmi Note 7 3G / 4G not working please help.
There is a TA problem indicated in the title, according to the owner, the first 4G disappeared then 3G. In a manual search, only 2G networks are found. SDDR changed to QM56022 power vph pwr and vpa apt (1.5-2.8V) comes, QM replaced. But there are no 3 and 4G networks. Maybe someone has already encountered such a problem.
