@ptibu Did you finally solve the power consumption problem? My MCU is even newer (QFAAH1) and consumption is around 1mA all the time, which makes drain the battery in a few days.
I bought my sensor in Aliexpress and I haven't flashed it. It's running with the code provided by the vendor. Can any of you recommend me a cheap cable/interface to flash it? It would be great to buy one that is already tested with this device. Thanks in advance!