"Unsupported Calibration ID: 4.12.4 requires beta access." Fix: HP Tuners sometimes gates new ECU definitions behind a beta flag. Apply for beta status on their official forum.
💡 If you are experiencing "Channels Disappearing" while scanning, clearing your VCM Scanner configuration and starting a new channel list often resolves the glitch in this specific build. If you'd like, let me know: What vehicle (year/make/model) you are tuning? Are you using an MPVI2+ or the newer MPVI3 ? Are you currently seeing any specific error messages ? hp tuners 4.12.4