Other software issues are more complicated, and a soft reset or force reboot of the device will not fix them. In this scenario, you can use iOS restore, which is a more complex approach. Because the procedure will wipe and reload the software on your device, it's a good idea to make a backup first. A system restore is another approach to guarantee that the issue you're having has nothing to do with the program. In fact, before starting a hardware repair, professionals would normally try to recover your iPhone. You may back up your iPhone SE to iCloud or iTunes, and then restore it using iTunes by following these steps:

• Connect your iPhone SE to your computer with the USB or Lightning connector that came with it.
• Wait for iTunes to identify your device after opening it on your computer. Make sure you're running the most recent version of iTunes.
• To proceed, press the Trust This Computer option on your smartphone if asked.
• In iTunes, choose your iPhone SE from the list of available devices.
• Restoring your iPhone is the option you should choose.
• You have the option of restoring from a backup or restoring to factory defaults.

To finish the iOS restore procedure, follow the onscreen prompts, and then proceed with your iPhone setup.