If HP Tuners VCM Editor says the tune was made with a newer (or older) version than you run, you don't need to update or downgrade anything. Drop the .hpt below, pick the version your VCM Editor uses (5.1 or 5.2), and download a file that opens instantly. Every table and setting stays identical.
The .hpt was saved by a different VCM Editor version than the one you run. HP Tuners gates files by version. Converting the container to your version fixes it without changing the tune.
No. The calibration data is preserved bit-for-bit — only the container version label changes. Verified byte-for-byte against real files.
No. Everything runs in your browser with WebCrypto. Your tune never leaves your device.
More tools: all converters · HPT to BIN · fix unsupported version