Can you reinstall an iOS update?

Locate your device on your computer. When you see the option to Restore or Update, choose Update. Your computer will try to reinstall the software without erasing your data. Wait while your computer downloads the software for your device.

How do I wipe and reinstall iOS?

How to factory reset and restore your iPhone

1. Open the Settings app.
2. Tap “General,” and then tap “Reset.”
3. Scroll and select “Reset.”
4. Tap “Erase all Content and Settings,” and choose “Erase Now.” If for some reason you haven’t already backed up your iPhone, this is your last chance — you can choose “Backup then Erase.”