I need to get a current account balance card. Any ideas?
There is no API for accessing such information from a SIM card in Android, sorry. You can consult with your mobile operator.
Even if there is some technique for receiving data from a SIM card, this is just the word can not ... because thr is not a dedicated field for balance on a SIM card ....
bt, , , , d , den 2 - = > sms/call to this number = > get response.