I ran into some filesystem issues after unattended power-off-on done several times and fsck was forced (unable to boot). The fsck probably fixed the issues because the GrovePi was workin afterwards.
To be on “safe side” I did update/upgrade process where after I lost connection to GrovePI.
My actual version is 4.1.13+ #826. I tried to update the GrovePI part (SW packages) as described via firmware update but the firmware update failed of course.
What is the fastest way out? New Raspbian installation? What is supported version? Jessie or Wheezy? Or is it better to use Dexter-flavor?
Any clue what to check / change? I read some articles describing other Atmega related issues after OS/packages upgrade and some forgotten files not overwritten…
Thanks for response / help!