@karsten One thing that would help me is an explanation why the bootloader refuses to boot my custom boot.img with FAILED (remote: 'dtb not found'). I know there’s a dtbo partition but I don’t know inhowfar that’s used by the bootloader. I’ve built the kernel using the msm8953-perf_defconfig, and …

I’m sure all your questions will be answered in the TWRP-thread :wink: I will post, if chaosmaster created it…

My phone is back! <3 I tried to boot with the vbmeta 1.0 (no verification) and the stock vbmeta with the --disable-verification option. None of these worked. We will have to pass thru TWRP to flash a gsi

If you mean this k4y0z, then everyone go over there and give the guy a like/thanks :slight_smile: https://forum.xda-developers.com/showpost.php?p=81576433&postcount=23689

[image] basxto: So I probably have the first rooted fp3 now. :champagne::tada: Congratulations! This brings the custom ROMs one big step closer!

Head over here for TWRP: [image] TWRP for Fairphone 3 Development EDIT: TWRP 3.4.0 has just been released and with its release FP3 is now officially supported: https://twrp.me/fairphone/fairphone3.html Unofficial releases for bug-fixes or feature tests may still pop up n…

Even with TWRP, we need to disable dm-verity and AVB. Someone who have an access to the UART console can try the vbmeta 1.0 and the stock one with --disable-verification and --disable-verity ?

Because edl is very usefull in case of bricked device, I tried the python program mentioned before. The sbl1.img seems to works as a Loader. mkdir examples cp ../stock/sbl1.img examples/sbl1.mbn ./fhloaderparse.py examples

Great thinking. I was hoping about that. The way I understood this boot chain works is, there’s an on-chip primary bootloder in actual boot ROM. This is what provides ebl through a virtual USB com-port, where one can provide an external loader. Otherwise, it loads a secondary bootloader (sbl) from …

Regarding AVL and verity, this page has an excellent writeup on how it all works: https://android.googlesource.com/platform/external/avb/+/master/README.md TL;DR: If you want to restore your phone to stock, you need to have matching aboot, boot, vbmeta, system, vendor all unmodified and in the c…

FP3 custom rom development based on released source code

Participate Development

k4y0z January 24, 2020, 10:53pm 191

Head over here for TWRP:

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