I had one of those. great job

Good modelling, but your materials need some work IMHO the phone looks a little to flat at the moment change the incidence angle which will help with the specularity plus the bump or displacement map on the wood is bit to strong make it look un-natural.

Think you need to look at your reference again? And can you post a link to it?

You’re joking right, you can’t see the difference between your phone and the reference image.

I like that you've used your artistic license to give it a matte finish. It adds to the feel that it is an old model. Well done and good luck