Samsung Galaxy A03s SM-A037U1 – Carrier ATT Unlock

ReadInfoCarrier UnlockATT Unlock

Read Info - read phone's software and hardware information. Can be done via ADB or Flash mode.

Carrier Unlock operation unlocks App locked devices OR devices which ask for unlock code. Carrier Unlock operation not work on carriers: ATT,CCT,CHA,BAA Price: 8 credits / operation

ATT Unlock Operation is used to unlock ATT App locked phones which dont ask for unlock code! Supported Carriers: ATT,CCT,CHA,BAA Price: 8 credits / operation

Binary Version is a part of firmware name, 5nd char from end.
Ex. Firmware SM-A037U1VPU4BQH1 has binary 4 (U4).

To use ADB with a device connected over USB, you must enable USB debugging in the device system settings, under Developer options.
On Android 8.0 and higher, the Developer options screen is hidden by default. To make it visible, go to Settings > About phone -> SW Information and tap Build number seven times. Return to the previous screen to find Developer options at the bottom.
On some devices, the Developer options screen might be located or named differently.

1. A Windows computer with an internet connection. For some unlock operation internet speed (download) might be important.
2. USB cable for your model, make sure is genuine and fully working, connect it to a main USB port to your computer
3. Purchase credits on our website or from one of our resellers
4. Download and install tmbkiller software on you PC.