Vcds 2231 Hex V2 | Clone Repair

Download MProg 3.5 (FTDI utility) or FT_Prog.

Verdict: If the chip is physically cold and unrecognized, you need hardware repair (Part 6). If it's recognized but has wrong IDs, you need firmware restoration (Part 4 & 5).

After programming, short PGM pin to GND briefly or hold a specific button if present (some clones have a hidden bootloader enable).

Original HEX-V2 units use a custom Atmel microcontroller. Clones use a cheaper FTDI (Future Technology Devices International) chip (often FT232RL or FT245) paired with a PIC microcontroller or an ARM clone. vcds 2231 hex v2 clone repair

Starting with VCDS version 21.9 and heavily enforced in 22.3.1 (2231), Ross-Tech implemented a detection routine:

Connect the interface to a 12V source (car or bench supply).

Some clones have a hidden bootloader pin (PIC12F675 or similar). Download MProg 3

You have spent 3 hours reflowing, flashing, and cursing. Is the VCDS 2231 HEX V2 clone repair worth it?

| Scenario | Verdict | | :--- | :--- | | FTDI chip is physically cracked or shorted. | Abandon. Replacements are hard to solder (QFN package). Buy a new clone for $60. | | You cannot find the correct firmware .bin file. | Abandon. Without the proprietary Atmel code, the interface is a paperweight. | | You repair it, but Windows still shows "Code 10." | Try a different PC with a legacy USB 2.0 controller. USB 3.0 often fails with clone FTDI. | | Successfully reset EEPROM and reflashed. | Success. You saved $60 and learned EEPROM engineering. |

VCDS clones rely on specific Bootloader and Firmware combos. Verdict: If the chip is physically cold and

Process using avrdude (or ProgISP):

  • Write the Firmware: Find a verified HEX-V2_22.3.hex file for ATmega162 clones. avrdude -c usbasp -p m162 -U flash:w:HEX-V2_22.3.hex:i

  • Write the Fuses: This is dangerous. If you set the wrong fuses, the chip won't boot. Typical settings for ATmega162 @ 16MHz: avrdude -c usbasp -p m162 -U lfuse:w:0xff:m -U hfuse:w:0x91:m (Verify these for your specific crystal oscillator).

    • This process will wipe the Ross-Tech VID/PID. You will need to manually re-enter the clone-specific values.