Cut the trace to pin 3 (WP#) of the SPI flash. Solder a small slide switch between the pad and VCC. When the switch is ON (connected to 3.3V), the flash is write-protected. No software, not even the STM32, can alter it. vcds 22.3.1 hex v2 clone repair

Replace failed components

Load the replacement 22.3.1.hex file into the Flash memory buffer and click . Connect the clone to a Windows PC

VCDS 22.3.1 introduced stronger authentication checks. Ross-Tech implemented challenge-response algorithms that many clone manufacturers struggled to bypass. If your clone worked for a year and then suddenly stopped after you updated VCDS (even accidentally), you likely have a , not a hardware failure.

Solder wires from your ISP programmer to the pads on the Atmega162 circuit board. Step 2: Reflash the Chip Click Target > Program & Verify

Download a verified STM32 binary configuration bundle (such as B03-ST_429 firmware presets matched alongside VIIPlusLoader ).

Look under Universal Serial Bus controllers or Ports (COM & LPT) .

Locate the SWD pads on the internal circuit board labeled GND , SWCLK , SWDIO , and 3V3 (or 5V ). Connect these pins to your ST-Link V2 programmer. Open software on your PC.