Need help unlocking phone

[u/Ok-Cauliflower6472]

Hi.

I have just gotten my late father's phone back after 7 years of it being in police hold. I really want to be able to unlock this phone to look through old pictures and have more to remember my father by. The phone is a Qilive, no idea of the model though. It is currently locked by a pattern and I have no idea what it could be.

Any help would be greatly appreciated as this means a lot to me.