OS installs on Pi 3B, but not 3B+


Created an application in balenaCloud, downloaded for Ras Pi 3. Wrote to micrtoSD using Etcher. Want the OS to run on a 3 B+, but it simply does nothing. Green ACK lite generally remains solid (goes out once in a while, but comes back), no lights at all on Ethernet port. SD card slot seems to get very warm. Same image works fine on a Pi 3B, just not the 3B+. Rasbian runs fine on the 3B+ in question using the same microSD. Any ideas?

Hi there, welcome to the forums!

The first thing I would suspect is some hardware problem on the 3B+ (since the image seems to be fine as it runs on a 3B). I assume you are using ethernet to get internet to the Pi, are you sure the port works correctly when running Raspbian?

I’d also suggest you take a look at this quick guide: https://www.balena.io/docs/faq/troubleshooting/troubleshooting/#raspberry-pi
It covers the most common pitfalls when setting up a Raspberry Pi with balenaOS, specifically the ACT LED on the board can report additional information (unless with “ACK” you meant this?).

Hey also, what version of balenaOS are you trying to run? Older versions (pre v2.12.5+rev1) did not have support for the Pi 3B+.