iOttie XL One replacement part maybe other models

thingiverse

This is a replacement for the center button. Internally it is held forward by a spring. Put your device in "ready to load the phone mode to unload the side springs when disassembling. Pro tip: just a little, tiny, small, itsy-bitsy amount of Vaseline (petroleum jelly) on the flat internal surfaces will make it like new. Mine is 4 years old... was still working the cap had popped off this button. Print a silly amount of walls to make it solid (6 walls, 4 bottom and 4 top layers @ 0.24 height in ABS for me). DON'T USE PLA! It gets too hot in a car, it will re-soften. PETG, ABS, ASA, Nylon variants Fusion 360, STEP and STL included