FP2 keeps restarting update Android 9

I started the Android 9 update last night, after the installation I was asked to restart, but ever since it repeatedly keeps restarting (screen says ‘fairphone powered by android’). I have tried to turn it off, let the battery die and turn it on again but it keeps trying to restart constantly. When I press the power button and the volume up button simultaneously the message ‘no command’ appears. When I press the power button and the volume up button briefly a menu in yellow and blue appears saying:
Android Recovery
Fairphone…
7.1.2/19.11./gms-24df0be9
user/release-keys
use volume up/down and power
Reboot system now
… etc.

I can’t use my phone now since last night. What should I do now?

A post was merged into an existing topic: “No command” message