Ok, little bit more progress.
It is advertising properly, using about 3mA for it (probably because the blue LED blinks when advertising?). When connected it goes well below 1ms, which means that the approach of advertising for 5 secs and sleeping for 25secs is indeed sustainable.
Feel free to reach out to me directly, I feel the board that’s showing 60mA (consistently) is either buggy or the update to the new bootloader didn’t work.
Next steps
- Check if this behavior is achievable on 2.6.1 (by the mere replacement of the bootloader)
- port this discovery to PlatformIO where my projects resides.
-ciao