My radio security lock engages and the clock resets when Torque Pro is closed. When I close the Torque Pro program I here a click from under the dash a few second later, and my radio's security lock engages. If I disable the security lock, the clock resets as if the power to the radio was disconnected. It doesn't always do it. I think if I leave the Torque Pro app running and disconnect the LX adapter nothing happens. It seems to only happen if I close the app in the car, or if I leave the app running and the tablet shuts down by itself or sleeps. The two center lights on the LX (red and yellow) still flash/flicker after the radio resets even though the tablet is turned off.

I have had the same problem with the cheap Chinese adapters, but those would reset the as soon as I plugged them in, not when I turned them off.

OBDlink LX Rev: 1.2/R4 Mfr: 2015.03.29
Torque Pro
2001 GMC Sierra 1500 5.3 4WD
Factory GM radio