Firmware recovery

occasionally, your flipper zero may fail to update correctly, display images, or respond to button presses these issues could be caused by corruption in the device’s firmware on this page, you’ll learn how to repair the corrupted firmware of your flipper zero how to repair firmware you can repair the corrupted firmware with the help of qflipper and the built in usb device firmware update (dfu) bootloader the usb dfu bootloader allows you to update your flipper zero by bypassing the device’s operating system, which minimizes the risk of errors during the update process but first, try doing the following reboot your flipper zero by pressing and holding the %left% left and %back% back buttons for 5 seconds charge your device with the provided usb type c cable for several minutes because your flipper zero might have the battery completely drained if your flipper zero still fails to update correctly, display images, or respond to button presses , follow the steps below step 1 switching to recovery mode before you start the repair process with qflipper, switch your flipper zero to recovery mode — this will activate the built in usb dfu bootloader steps for switching your device to recovery mode may be different and depend on the device state if your device is operational but fails to update properly switch your flipper zero to recovery mode by doing the following go to main menu > settings > power then go to reboot > firmware upgrade press %right% right to reboot connect your flipper zero to your computer via a usb cable the computer should detect your flipper zero as a dfu device proceed to the firmware repair via qflipper https //docs flipper net/basics/firmware update/firmware recovery#dyf v alternatively, you can switch the device to recovery mode by doing the following press and hold the %left% left and %back% back buttons for 5 seconds release the %back% back button, but keep pressing the %left% left button until the blue led lights up connect your flipper zero to your computer via a usb cable the computer should detect your flipper zero as a dfu device proceed to the firmware repair via qflipper https //docs flipper net/basics/firmware update/firmware recovery#dyf v if your device fails to display any images or respond to button presses if your flipper zero is bricked, switch the device to recovery mode via a hard reboot unplug the usb cable from your flipper zero if connected press and hold the %ok% ok and %back% back buttons for 30 seconds it is normal if your flipper zero has no indications on the screen connect your flipper zero to your computer via a usb cable the computer should detect your flipper zero as a dfu device proceed to the firmware repair via qflipper https //docs flipper net/basics/firmware update/firmware recovery#dyf v checking the connection you can check if the device is connected to your computer as a dfu device by doing the following go to device manager find the dfu in fs mode device go to  > about this mac > more info > system report then go to hardware > usb find the dfu in fs mode device you can also check if your flipper zero is connected to your macos computer as a dfu device using terminal run the system profiler spusbdatatype command in terminal run the terminal and enter the lsusb command find the stmicroelectronics stm device in dfu mode if you have a system information tool installed on your computer go to usb devices find the dfu in fs mode device if your flipper zero isn’t detected as a dfu device use a different usb cable if possible, connect your flipper zero directly to a usb port on your computer’s motherboard, avoiding the use of an adapter or hub first, remove the microsd card from your flipper zero, charge the device for one hour, then attempt to connect it without the microsd card inserted step 2 repairing the firmware via qflipper once your flipper zero is connected to your computer as a dfu device, qflipper will automatically detect the device to repair the firmware run qflipper on your computer on your computer, click the repair button qflipper will perform a complete installation of the firmware if qflipper fails to repair the firmware make sure the qflipper application is installed on your computer correctly for more details, see installing qflipper reboot your device by pressing and holding the %left% left and %back% back buttons with a usb cable disconnected, then repeat the repair process if qflipper still fails to repair the firmware, perform a hard reboot by pressing and holding the %back% back button for 30 seconds with a usb cable disconnected, then repeat the repair process run qflipper as an administrator if possible, connect your flipper zero directly to a usb port on your computer’s motherboard, avoiding the use of an adapter or hub if you have issues on your windows computer, visit troubleshooting drivers on windows https //docs flipper net/qflipper/windows debug