@Keneda In the other topic, a couple of users said that they tried to reach the sensor or at least the connection, but without luck. Fingerprint stopped working, setting completely gone
I personally tried, but it seems embedded into the metal frame with no connector visible.
As I read in the iFixit paper, the sensor is inaccessible.
You can see at page 15 here Fairphone Schematics - iFixit that there are flat cables going from the buttons directly to the PCB, all of them glued to the metal flame.
I personally didn’t want to go further, since my phone is still under warranty.