If I remember correctly, the cellular chip is also closed source on the BraXPhone. This was one of the criticisms that I heard.

I also used rooting at the beginning (Android 4.0 to 7.0) but realized that it is a little bit of a security problem, so I later used cfw without rooting the device. But root was a lot of fun, like cpu scheduler tweaks, apk patches or system mods. TWRP simple backups and restores. System Application removal (daim Facebook App…… 2014 users will remember)

This was the only reason I liked Android over iOS: the CFW community. I’ve been running some sort of CFW since Android 4.0. Now, the charm has gone. GrapheneOS, SailfishOS, e/OS, LineageOS, iode OS, and even CyanogenMod – I’ve used them all. Each one has its own target group and use case. I hope it turns into the better one again. It’s like forcing a PC to only run the OS it’s delivered with.