I wrote a C program to read weights via BLE from an
electronic scale. It worked fine. Than I put the SD
card in another RPi3B+ and it did not function
correctly. It connected to the scale, but gives
an error message when calling gattlib_connect.
Note: the SD card was the same in both RPis.
Any idea of the cause? Are there BLE settings inside
a RPi, which are not on the SD card?