This is a guide for Windows users who encounter problems during the Flipper Zero firmware upgrade process. If you experience errors during the upgrade process, use this step-by-step guide to verify that your system configuration is correct.
Download qFlipper: Flipper Zero Firmware Update via qFlipper and install it.
The Flipper can be defined in the system as two different devices:
To reboot in DFU mode:
Connect the Flipper to the PC:
If the device is not in this section, in Device Manager open Universal Serial Bus controllers and look for STM Device in DFU mode.
If the driver is incorrect, reinstall it:
Windows have a bug when two different COM devices binds on the same port number. For example two devices both have COM3 number. If you have this issue, try to change COM port number of Flipper Zero manually:
Go to device Properties → Port Settings → Advanced and change port number to free one: