Hey Isaac, have you tried different devices like a different phone or a laptop? When this happens have you checked the bluetooth connection? Maybe its looses the connection and reconnects, which takes a few seconds. Patrick

Hello Francesco,

first, make sure it is completly dry. You should have removed the battery immediately after the dive.

you can remove all three modules. Then clean the contacts with alcohol.

Then WITHOUT the modules (just screen and core) try start the phone.

If its boots up replace one module at a time then check again.

For futher help: check the fairphone forum https://forum.fairphone.com/