Redmi 9 4g bands July 8, 2019 16 32 64 128 Redmi note 9 pro 4g bands Redmi note 9 pro max 4g bands Redmi note 9 4g bands Redmi 9 prime 4g bands Redmi 9 power 4g bands Redmi note 9 4g plus Redmi 9 64gb 4gb ram Redmi 9 4 ram 64gb Redmi 9 4gb 64gb pubg test