How to enter DFU and bootloader mode on EdgeTX

I. Entering DFU and Bootloader Modes

Not all transmitters enter Bootloader or DFU mode in the same way. The following describes methods for many EdgeTX transmitters to enter Bootloader and DFU modes.

1.1 BETAFPV LiteRadio 3 Pro

Bootloader: Turn off the transmitter. Press and release the Bootloader button and power button simultaneously.
DFU: Turn off the transmitter. Hold the DFU button and insert the USB cable, then release the DFU button.

Important

Note: In early versions of the LiteRadio 3 Pro, the DFU button was non-functional, which prevented enabling DFU mode. However, in current versions of the transmitter, the DFU button has been fixed and now works properly.

1.2 FlySky NV14 / EL18

Bootloader: Turn off the transmitter. Pull both trims inward and press both power buttons.
DFU: Turn off the transmitter. Hold the DFU button and insert the USB cable, then release the DFU button.

1.3 FlySky PL18 / PL18 EV

Bootloader: Turn off the transmitter. Pull both horizontal trims (TR7 and TR8) together and press both power buttons.
DFU: Turn off the transmitter. Hold the DFU button and insert the USB cable, then release the DFU button.

1.4 iFlight Commando8

Bootloader: Turn off the transmitter. Press and release the Boot button and power button simultaneously.
DFU: Turn off the transmitter. Connect the USB cable from the computer to the transmitter. Hold the Boot button, then hold the power button. The screen will remain dark, and the LEDs will run from left to right. The transmitter is now in DFU mode.

1.5 Jumper T12/T16/T18

Bootloader: Turn off the transmitter. Pull both horizontal trim switches together and press the power button.
DFU: Turn off the transmitter. Insert the USB cable into the USB port on the top of the transmitter.

1.6 Jumper T12 MAX

Bootloader: Turn off the transmitter. Pull both horizontal trim switches together and press the power button.
DFU: Turn off the transmitter. Hold the DFU button and insert the USB cable, then release the DFU button.

1.7 Jumper T14/T15

Bootloader: Turn off the transmitter. Pull both horizontal trim switches together and press the power button.
DFU: Turn off the transmitter. Hold the DFU button and insert the USB cable, then release the DFU button.

1.8 JumperT-20/T-20s

Bootloader: Turn off the transmitter. Push both trim hat switches inward together and press the power button.
DFU: Turn off the transmitter. Hold the DFU button and insert the USB cable, then release the DFU button.

Important

Note: To access the DFU button on v1, remove the antenna. For v2, use a toothpick to gently press the button to avoid damage.

1.9 Jumper T-Pro / T-Pro V2

Bootloader: Turn off the transmitter. Push both trim hat switches inward together and press the power button.
DFU: Turn off the transmitter. Hold the DFU button and insert the USB cable, then release the DFU button.

1.10 RadioMaster MT12

Bootloader: Turn off the transmitter. Pull both trims T1 and T2 together and press the power button.
DFU: Turn off the transmitter. Insert the USB cable into the side USB port (under the rubber cover).

1.11 RadioMaster Pocket

Bootloader: Turn off the transmitter. Push both trim hat switches inward together and press the power button.
DFU: Turn off the transmitter. Insert the USB cable into the USB port on the top of the transmitter.

1.13 RadioMaster (其他所有 - Boxer, T12, Zorro, TX16S)

Bootloader: Turn off the transmitter. Pull both horizontal trim switches together and press the power button.
DFU: Turn off the transmitter. Insert the USB cable into the USB port on the top of the transmitter.

1.14 Eachine TX16s

Bootloader: Turn off the transmitter. Pull both horizontal trim switches together and press the power button.
DFU: Turn off the transmitter. Insert the USB cable into the USB port on the top of the transmitter.
————This content is referenced from the EdgeTX User Manual: https://zkl2333.gitbook.io/edgetx-user-manual/edgetx-ru-he-cao-zuo/access-dfu-and-bootloader-mode**