Before the flashing portion of the tuning process can begin, the device must unlock your PCM. This allows communication between the device and the PCM. If your vehicle has been tuned before or there is a chip (physically) connected to the PCM, this will interfere with the unlocking of the PCM.
Please remove prior tunes and ecu chips before you attempt to flash your vehicle again. If the error remains after checking for or removing prior tunes or ecu chips, Check for updates to ensure your device is up to date, or try a different device (if you have one available).
If you continue to have this issue, please contact us at techsupport@derivesystems.com or visit our chat option on our site sctflash.com