@Rondarius thank you so much for testing this! So we can conclude that:
- The WiFi issue is due to the Mobian kernels, which do not have the firmware built in directly, unlike my older okpine kernels, but mine seem to struggle with Lomiri on 2025.4, which is why we switched to the Mobian ones
- The Lomiri black screen for 2025.4 on the PinePhone is definitely a hardware acceleration issue, the PinePhone Pro does boot it correctly
I will see what I can do about fixing both of these problems. I have not bumped my kernel in a long time, so hopefully updating it would resolve the issues, but I am so far out of the habit that it will take a bit to fix. I will also take a look if the WiFi issues can be fixed externally without new kernels, and what dependencies might still be needed to get Lomiri working on the OG PinePhone.
Once again, thank you massively!