⚠ Close qFlipper first! qFlipper locks the Flipper's COM port.
⚠ Linux: USB serial permission Your browser can't open the Flipper's port until your user is allowed to. In a terminal run sudo usermod -aG dialout $USER, then log out and back in (or reboot). If it still won't connect, add a udev rule: echo 'SUBSYSTEM=="usb", ATTRS{idVendor}=="0483", MODE="0666"' | sudo tee /etc/udev/rules.d/42-flipper.rules then sudo udevadm control --reload-rules && sudo udevadm trigger, unplug/replug the Flipper, and try again.
Connection checklist: use a data USB cable (not charge-only), pick your Flipper in the browser's device dialog, make sure it's powered on at the desktop, and close any other app using it (qFlipper, serial monitors).
📲Standard UpdateRECOMMENDED
Flipper is on and at the desktop. Uploads firmware to SD card via USB RPC and triggers install. Files preserved.
🛠️DFU RecoveryRECOVERY
Flipper unresponsive. Hold Left + Back while powering on. Writes firmware directly via WebUSB.