power on mobile or put device in fastboot
click to eRecovery mode
or hold vol up + power key(emui10 before is vol up+vol down+power key) to upgrade mode
![](https://community.evondt.com/assets/files/2023-02-01/1675244065-178527-to-upgrade.png)
![](https://community.evondt.com/assets/files/2023-02-01/1675244324-969632-upgrade.png)
select usb firmware
software support multiple choice;you can select all you need flash to device
![](https://community.evondt.com/assets/files/2023-02-01/1675244392-944108-select-firmware.png)
or select txt firmware
![](https://community.evondt.com/assets/files/2023-02-01/1675244503-525079-to-upgrade.png)
click evotool start and flash it
![](https://community.evondt.com/assets/files/2023-02-01/1675244555-152330-flashing.png)