https://gamesartist.co.uk/old-phone/
3D Artist Anatolii Kenc provides an insightful breakdown of his realistic Old Phone prop. In this article he talks about goals, tools, references, modelling, low and high poly, sculpting details, UVs, baking, texturing & rendering.
https://www.artstation.com/tolikkenc
https://www.artstation.com/artwork/Ry0DDv