If you can not log in to Satang Pro Mobile application system on the following:
You have to set the 2 Factor Authenticator (2FA) password on satang.pro website first after you finished with that process, you can log in with a 2FA password via Satang Pro Mobile application immediately.
Please contact Satang Support for more information.
Contact us via:
Satang Pro Live Chat
All are available for 24/7.