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 firmware fix this bug . thanks.
Error code: 86529
No command entered or the command entered is incorrectly formatted.