For my Aria 1 this exact same thing happened. This indicates an electrical problem inside the scale. I found a YouTube video of some guy that opened his, found a pinched wire, repaired it, and got it working again. When I opened mine, one of the plastic housings on the four corner weight sensors was broken and thus messed up the weight and/or body fat measurements. I tried re-glueing and stiffening the plastic housing, but to no avail. Since the scale was nearing 4 years old, I bought a new Aria Air. It was half the price of the Aria 2, but you do have to have the app open and click "Save" every time you take a weight measurement. No body fat % either, only calculated BMI.
