How do I force restart my iPhone when the phone is frozen and the home

You should normally be able to restart by holding the home and power button (on the right side) at the same time.

In your situation, since either the power button or home button or both are stuck or broken, your best way forwards is probably a recovery tool or just waiting for the battery to die, and then restarting it by connecting it to power.

@joanabumere It’s also a stretch, but there are potential issues with memory corruption if you weren’t updated to the latest version of iOS (Apple released another set of security updates to iOS 12 a few months ago to provide patches to older devices such as the 6s).

It’s definitely worth connecting your phone to a computer with iTunes installed (works with both Mac and PC) using a Lightning (iPhone charging port) to USB (standard port on computers) cable and then seeing if an update is available or it wants to enter recovery.

If nothing comes up in iTunes when connected or linking to the device is not an option, you’re probably going to want a technician to look at it unless you find another solution, as there’s probably an issue that can’t be solved through normal troubleshoot and will need either a part replacement or some sort of other repair.