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submitted 11 months ago by butter@midwest.social to c/android@lemdro.id

Thinking about buying the fairphone 4. Coming from oneplus 8, which is almost unbrickable, thanks to an EDL MSM tool.

Obviously, I'd be careful. But am I likely to brick a fp4 by ROM hopping? Is it dangerous enough that I should not go into buying this phone with the intention of installing a ROM?

Mainly, I want to play with Ubuntu Touch, PostmarketOS, and maybe sailfish. But I figure if those don't quite work out, I'll land on Lineage with MicroG or /e/, since that'll be stock fp4 in the US.

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[-] allthat@sh.itjust.works 14 points 11 months ago

Just be careful if you test several android roms, the phone uses anti rollback (ARB), like pixel phones. In certain circumstances it's possible to brick the phone, and you'll have to send it to fairphone.

With android roms that allow relocking the fairphone bootloader (Calyx and Divest for instance), really check if the bootloader can be relocked via fastboot command-line, it will brick if it's not the case.

I spent some time reading before attempting anything on it and it went rather smoothly, I don't hop a lot between roms though.

[-] akiratoriyama@lemmy.world 2 points 11 months ago

Doesn't make sense why they would implement arb in this phone.

[-] allthat@sh.itjust.works 1 points 11 months ago

That's what some people said online but yes there is ideed arb on it, there are some technical details on the /e/OS FP4 page for instance : https://doc.e.foundation/devices/FP4/install.

I was using Calyx and went to Divest with relative ease, atlhough I did pay attention to the security patch level before jumping, having to send the phone to fairphone would be really annoying.

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this post was submitted on 04 Aug 2023
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