Download the latest version of Z3X SamsungToolPro via Z3X Shell software
Run the software on your PC
Open “Settings” tab and enter your login and password
Press “Credits History” button
Note 1: T-MOBILE phones are not supported by code reading. Only by unlock TMB via server.
Note 2: Before performing code reading operation make sure that you need these codes. Just power phone on and check if the phone requests codes.
** One successful code reading takes 5 credits.
*** One successful unlock of TMB phones will take 10 credits till January 25, 2018.
One successful unlock TMB phones will take 16 credits after January 25, 2018.
* Developer provides support only for those phones which are on the list of supported. Not all servicing features can be applied to some supported models, due to difference of hardware / software versions. Complete list of supported models you can find on the official product page, or on the GSM forum.