Verified now with even old iphone 4s, there is a setting in the systems to put a digital home button back on the phone.
Because yes, I could open up your phone, but I’d rather not if there’s a chance. So try out this great trick.
- Open settings
- Got to General>Accessibility
- Scroll down to either interaction or assistive touch
- From interaction, find assistive touch and turn it on
- From the assistive touch pres the > button and turn the button on
Many thanks to Gail who verified this!