Posted by Christopher Herrod on 29th May 2026
HP Tuners RTD Flasher Instructions
STEP ZERO(0): DO NOT PLUG THE USB DRIVE INTO YOUR PC THAT COMES WITH THE RTD PACKAGING!! FOLLOW THE INSTRUCTIONS BELOW. THE USB DRIVE DOES NOT HAVE THE LATEST SOFTWARE ON IT. Download and install the RTD Flasher Software (for Windows PC only – does not work on Mac) - https://files.hptuners.com/rtd%20flasher/rtd%20flasher.msi Open the software Go connect the RTD to your OBD-II port on the vehicle - ENSURE THE KEY/PUSH-…
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