windchaser17
New User
Tried to flash the internal module with XJT_ACCST_2.1.0_FCC.frk just to make sure I was using that version. Loaded FW onto SD card, navigated to folder on TX, selected .frk file and selected "Flash internal module". Got "Device reset . . . " and then got "Firmware update error Device not responding [EXIT]"That should make no difference. The Plus SE is still the same basic radio with a few additional options.
Your radio appears to be the X9D+ that someone added a removable antenna. (you have the standard gimbals, the SE has hall gimbals)
You can't update the internal module from the bootloader screen as this is only to update the OpenTX firmware.
You have to start the radio, long press the MENU button, page to the next page, select the "FIRMWARE" folder, use the minus or plus buttons to get to the "XJT_ACCST_2.1.0_FCC.frk" V2 file or the "XJT-Ver170317.frk" V1 file, then long press ENT key and select "Flash internal module".
Rich
Tried to flash the internal module with XJT_Ver170317.frk. Loaded FW onto SD card, navigated to folder on TX, selected .frk file and selected "Flash internal module". Got "Device reset . . . " and then got "Firmware update error Device not responding [EXIT]"