Redmi note 8 pro 5ghz wifi July 8, 2019 16 32 64 128 Redmi note 8 pro 5ghz wifi problem Xiaomi redmi note 8 pro 5ghz wifi Redmi note 8 pro support 5ghz wifi Redmi 8 5ghz wifi Redmi note 8 pro network problem Redmi note 8 pro hotspot problem