Fairphone 3 unbricking

[k4y0z]

@_tmp

@basxto/@k4y0z : where did you find the working programmer? It doesnt seem to be contained in any of the repositories linked here in the forum.

Originally I assumed we would need a programmer that is signed by Fairphone/Arima.
But since they didn’t burn in the PK HASH fuse, and therefore aren’t checking sbl1/programmer signatures any compatible programmer should work.
Since Xiaomi publishes their programmers and the Redmi 7 shares the same platform I found it in the Redmi 7 firmware package:
https://bigota.d.miui.com/V11.0.2.0.PFLMIXM/onclite_global_images_V11.0.2.0.PFLMIXM_20191022.0000.00_9.0_global_b0cd3cab92.tgz

@calvofl0

Since I do not have any UART converter nor any good skills in soldering, your option to short either of the DAT0, CMD or CLK of the EMMC to ground while powering on would be great, but as you say it requires to locate any of these… so right now I’m a bit stuck .

Did you try to find the UART buffer in the memory dump as I suggested?

@calvofl0

I’ll try meanwhile to understand what went wrong in the first place. So I extracted all relevant partitions with dd , I even flashed them back into both slots using fastboot (and all went very well and the phone booted on any of the two slots), and later on I packaged it into a TWRP zip-file . Before publishing that file I wanted to test it, which I did, and end up bricking my phone.

If both slots were working previously, I don’t understand why it would not have just loaded the other slot after your failed flashing attempt.
Can you share the ZIP that bricked your device?