iPhone 13 mini case. No Support

My old case for my phone has fallen to pieces and couldn't find a replacement as Apple don''t make small phones anymore.
Managed to find one on Thingiverse by markosaurus.
Fitted great but walls snapped and lens rested on any surface.
I don't know how to adapt STL's so decided to model my own case.
Had a little dig and found out about Apples use of 'squircles' on transitions between flat and round faces.
Managed to download the iPhone 13 mini dimensions from the Apple Developer Accessory Guidelines and created the phone profile in Autodesk Fusion..
After a few iterations got the tolerances, and wall heights bang on.

Printed on a Bambu P1S with 0.4mm nozzle.
Rotate onto back.
Example shown is PLA.
Quality
0.2mm Strength @BBL X1C
NO Support