Good video series if you try the VVDI again dropping voltage might help read it just turn it back up to write. 3.6v or 3.2v might be right. The multi-prog looks like a deal

Lift the power pins off the board, old cas 3 9s12 reader should read secured 9s12 chips.

Probably you don't have enough power, lift vcc pin or power on board, or power only voltage regulator on the board.

Thank you for taking the time to share this with us.

Thank you for sharing these videos. I definitely wasn't expecting a no read with all the programmers. looking forward to the next part for sure.

Can't wait for the next video, Dallas Auto Diag

Hello, probably sound stupid but did you try with autel to use diagram from vvdi and cgi, with vvdi to use from autel and cgi...... you get the picture. Any way...... I'm just a beginner and i really enjoy your content. Take care