You have been very helpful, thanks again.

I successfully put 2.50 on the device, but it still jitters and registers between 0 and 1.7mph while at rest! Do you know if there are any other data files that it uses, which are not part of the firmware update but which might have been corrupted and could cause the device to malfunction? is there anywhere to get a clean version of these files? I can't believe it's a hardware problem as everything works, and it does not crash, it just gives inaccurate readings...