Ussd code running problem on s7

[Mordecai]

I can't check my balance or recharge airtime or input any ussd code any time I press the # button on my s7. I've tried factory reset and it's still not working ..it just says ussd code running and nothing shows

 

[mikedt]

Sure you're entering the correct codes for your particular carrier? As USSD codes can be carrier specific, like the check balance, add credit codes, etc.

 

[Mordecai]

Sure you're entering the correct codes for your particular carrier? As USSD codes can be carrier specific, like the check balance, add credit codes, etc.

Yes i am.

 

[leiadamp]

my phone can't operate USSD CODES, it indicates connection error