For the Android phone, it could use the app: LTE Discovery, tap SIGNALS, check EARFCN(band number), ‘DL Freq and UL Freq’ . ‘DL EARFCN and UL EARFCN ‘.
Read moreHow do I choose an android band?
Choose your band and turn on the selection toggle. This trick work only for Samsung user… but you can try on your phone.
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