Unable to register to Danish GSM networks

I just bought a OPO second hand from UK and I'm unable to use any Danish simcard. I had an old vacation sim from the Philippines that worked (and roamed) straight away. If I try automatic network selection or direct network selection I get "Can't connect to this network right now, try again later!". I'm at a complete loss here and any help would be appreciated.

I've checked that LTE/GSM is selected in radios and LTE (preferred) is set in the normal settings. The phone can see all the networks here in Denmark in the 'Network Operators' list.

[FIX] Fingerprint doesn't register after TWRP restore

Hello everyone. I have figured out how to remove registered fingerprints without having to factory reset your device. So, when you create a backup and forget to delete them, you're not SOL when you restore.

Flash this file in recovery and you should be good.

What does it do? Simple, it removes /data/validity/template.db

NOTE: If you have your lock screen set up for fingerprints, this will not reset the lock screen. Upon boot, it will still think you're set up to unlock with fingerprints. You can simply use your backup password to get into your phone then go into settings and set up your fingerprints again. OR if you want, you can remove locksettings.db, locksettings.db-shm, and locksettings.db-wal from /data/system/ while in recovery.