How to root the Fairphone 3?

[amers]

Hmmm. I only know the mechanisms about rooted FP2.
Yet, FP3 seems to have a different partitions-setup (A/B system partitions for a different update process) - still have to take a closer look at this …

In the thread about TWRP, I understand two different messages about the process of OTA updates:

• OTA updates would install on rooted phones as well (with phone being unrooted afterwards):

@mgfp

If I understand correctly, TWRP (and Magisk) are gone after the OTA update, and need to be re-installed:

The key thing here is that it [the OTA update] installs a fresh, fully stock version.

• k4y0z on the other hand says that the update would be refused:

@k4y0z

The update_engine should actually check the partition checksums and either download a full update or refuse to update altogether if they don’t match

k4y0z’ post matches with your approach:

• restore original partitions
• get the OTA update
• then re-install root again

(post edited to include posts from TWRP-thread)