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I'm getting power values 20-50 watts different from power pedals, so when using interactive apps I'm only given speeds between 4 and 12 mph. When I try to calibrate using the desktop app, it stays at P1, and several times I've ridden for up to 15 mins within the red zone and nothing else happens, it...

When I try to calibrate my Qubo Smart Digital B+ the P1 test lasts forever. I was in the red zone for the entire time and just gave up after 15 minutes. How long should this calibration take? I'm using the 1.1.7(40) Elite app on a macbook OS 10.13.1