If the EEPROM reset gave you a "Found" but "Firmware not loaded" error, your clone’s main microcontroller (PIC/Atmel) has been wiped. You need a .hex or .bin file.
No USB enumeration (PC doesn't detect device) vcds 2231 hex v2 clone repair
Before starting a repair, identify your hardware. Most "HEX-V2" clones are actually upgraded based interfaces. If the EEPROM reset gave you a "Found"