f90604c2fc

He bought a car from another country, I believe he should have a couple of hours to try update it before calling it dead.

If I were you I'd insist on getting the car updated before anything. When you say the update gets stuck its actually not stuck but unpacking the huge firmware archive. You need to give it some time and preferablly keep it connected to a wifi so that after it unpacks part 1 it continues with downloading the rest of the parts.

https://beta.doc.bunq.com/basics/sandbox