Here is the working solution to CN900 Mini key programmer “decode error 2” when decode Toyota transponder key with G chip.
Download CN900 Mini update file
Open CN900-MINI-V1.9 software on desktop
Click on CONNECT to connect Mini CN900 and computer
Then click on UPDATE button to update CN900 Mini firmware
Power off CN900 Mini main unit
Power on CN900 Mini key programmer
After firmware update procedure complete, turn on the key copy machine again.
Device will work well.
