GreenthumbFPV

I'd a look at your video. ESC aside , it could be many things causing that ie mechanical or your config.

Are your props in good nick ?

Is your build reasonably clean ?

Have you selected filters for clean build or noisy build and selected the correct packet rate (match to controller) for RC link if using ELRS. ?

Dterm too high ? Not tuned right ?

Send screenshot of your pids and filters.

Return your ESC settings to the defaults. Min and Max startup are too high.

@Lyghtz I soldered on. You remove the SBUS wire from the Vtx plug and solder the rest of the plug wires onto board.

Mind it's Rx to Tx and Tx to Rx

You'll need to select HD OSD in BF firmware builder options, and change setting in Ports tab.

Possible you've selected wrong firmware option (SD Vs HD) or that you've selected wrong options in Ports tab.

What UART is your VTX on , and is it Tramp or Smart Audio ? ( I can't read your screenshots)

@Lyghtz It's a relatively easy upgrade. I've upgraded a few analogue Nazgul5's to DJI 03 no problem. I think the 04 is bulkier, so not sure about mounting with that.

Yeh, they're fine

@qwo99 A successful trouble shoot but not the result you hope for. It sounds like your vtx is fried