CH32X famiuly with XN297LBW for 2.4Ghz

[vido89]

I have drone with I think CH32X family MCU (the markings on MCU are removed) it communicates with panchip XN297LBW for 2.4Ghz can you help me to determine where is SWD pad ? Tnx

[wagiminator]

Sorry, I do not have this drone.