I hadn't even read your reply yet, but I also managed to flash the new firmware for the modem (described it here) 
Unfortunately, as with you, the problems I had before seem to persist. In my case I'm still not able to install any of the Manjaro distributions for the pinephone 
On another note, I did try openSUSE yesterday but I found it was less functional than other distributions using Phosh, such as Mobian. In fact, I'm starting to like Mobian a lot! It seems to be pretty fast and most functions seem to work. What kind of issues are you still dealing with?
Unfortunately, as with you, the problems I had before seem to persist. In my case I'm still not able to install any of the Manjaro distributions for the pinephone On another note, I did try openSUSE yesterday but I found it was less functional than other distributions using Phosh, such as Mobian. In fact, I'm starting to like Mobian a lot! It seems to be pretty fast and most functions seem to work. What kind of issues are you still dealing with?
PinePhone (BH 2GB + CE 3GB) // RockPro64 4GB (rev. 2.1) - OMV NAS // PineH64 3GB (model B) - off-prem OMV NAS // Pine64-LTS 2GB (rev. 1.2 + Playbox) - Domotics server