1. Phone must be powered on.
if you are using micro-uart cable:
2. Type *#7284# and choose Modem for UART options.
3. Type *#9090# and choose DM over UART.
4. Select correct COM port in Port settings, connect phone to UART cable.
if you are using micro-USB cable:
2. Type *#7284# and choose PDA for UART options.
3. Type *#9090# and choose DM\DUM over HS-USB.
4. Select Diagnostic port in Port settings, connect phone to USB cable.

5. Press "Repair" button.
6. In opened window fill fields what you need to repair.
7. Press "OK"