Huawei scale 3 faulty reset button

My Huawei Scale 3 won't connect to my Huawei Health app anymore. It gets detected by the app via bluetooth, but pairing fails due to timeout.

Fuethermore, the physical reset button on the scale is not working. I've kept it pressed even for 30 seconds, but the scale won't reset.

Any ideas? Tried leaving the scale without batteries, tried reseting my phone's Bluetooth, cleared cache, nothing works.