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5G/4G Wi-Fi Routers/MiFi
2021-07-14 23:47:51
i can't top up card on mr6400 by ussd
whe i top up card on mr6400 by ussd. i press *100*123456789# => it run send button and show result. but my id card up to 12 number i press *100*123456789012# => error no command . admin can support fi