• If you have an OBDLink with Bluetooth option, be sure to before upgrading the firmware from version 2.0.2 or older to version 2.1.0 or newer. Alternatively, you can manually. • Some diagnostic software may not work with versions 2.1.0 and above.
Check to make sure your software supports 115.2 kbps before upgrading, or manually. • Downgrading from version 2.x.x to version 1.x.x will cause all programmable parameters (AT PP) to be reset to factory defaults.