These lilac/purple boards have a different architecture (tm1637 chip, legs different etc) then m365 pro original/clone boards.
By default ble version shows as 910. You could change the BLE to 090 with st-link using correct hex file which you can find here
pin connections are at the back. The order is:
3.3v - SWDIO- SWDCLK - GND
After upgrading ble to 090 all my problems gone.(i had stuttering problems in d and s mode)
You can not use camialfa v74 BLE files etc. since architecture is different.
You could BMS 126 (7800mah) for standard m365 here: