You cannot re-flash a bricked clone via USB. You need a PICkit 3 or PICkit 4 programmer ($20 on Amazon). Solder five jumper wires to the back of the PCB:
Warning: Do not connect 5V. You will weld the silicon. Vcds Hex V2 Clone Repair
The counterfeit VCDS (Vag-Com Diagnostic System) HEX-V2 interfaces are popular due to their low cost ($20–$50) compared to the genuine unit ($300+). However, they are notorious for sudden failure. Common failure modes include: "Interface not found," "Firmware update required" loops, USB disconnection, or the device being "bricked" after an accidental update via the official VCDS software (v21.3 or newer). You cannot re-flash a bricked clone via USB
If Windows gives "Error 43" and voltages are fine, replace the CH340G. Warning: Do not connect 5V