Some users reported that their phone screen goes red or flashes red before they see the Apple logo on the screen. For some, the phone stops working and it does not even turn off, for some, it returns to normal after some time and they can go back to using their phone as usual.
Solution 1: Restart the phone
Restarting the device will fix the problem for the moment but it may return later. Use the Sleep/Wake button to restart the device. If the problem is fixed and does not return then the restart worked for you. If it returns then check if your phone is running the latest software before taking it to Apple.
Solution 2: Update your phone software
- Go to the Settings menu of your device
- Tap on General
- Tap on Software Updates
If an update is available then download and install it.
Solution 3: Contact the Apple Store
If your phone is using the latest software and problems keeps returning or does not go away then it is possible that a hardware issue may be plaguing your phone. Visit the Apple Store for support.