Write firmware
Remove SD and SIM cards from phone;
Connect powered-on phone to PC with Micro USB cable;
Install necessary driver;
Select firmware file;
Click "Write firmware" button;
Follow software instructions (prompts).
Note: If it is not possible to write firmware or during firmware writing occures error, you need to put manualy phone into Emergency mode
Note: Please, make sure the phone's battery is fully charged. Disconnect all other devices from the computer (including phones, modems, etc.) and close all other running programs. To avoid errors in the flashing process, use a clean PC (without any installed drivers for other Qualcomm-based devices). You should not run any other programs or attach new devices to your computer during the flashing! Please, follow these simple precautions to avoid damaging your phone.
Note: Please, don't upgrade/downgrade firmware version, if it is not necessary.
Remove SD and SIM cards from phone;
Connect powered-on phone to PC with Micro USB cable;
Install necessary driver;
Select firmware file;
Click "Write firmware" button;
Follow software instructions (prompts).
Note: If it is not possible to write firmware or during firmware writing occures error, you need to put manualy phone into Emergency mode
Note: Please, make sure the phone's battery is fully charged. Disconnect all other devices from the computer (including phones, modems, etc.) and close all other running programs. To avoid errors in the flashing process, use a clean PC (without any installed drivers for other Qualcomm-based devices). You should not run any other programs or attach new devices to your computer during the flashing! Please, follow these simple precautions to avoid damaging your phone.
Note: Please, don't upgrade/downgrade firmware version, if it is not necessary.