Q: Why does your screen go blue after the 8.1.3 update?

Hi AYANNA970,

It sounds like you are getting a blue screen on your iPhone since updating your device to the latest iOS version. I would use these steps from the following article about troubleshooting the screen on an iOS device:

Get help with the screen on your iPhone, iPad, or iPod touch

If you see a solid color screen (black, white or blue)

 

1. Plug in your device to a power source. If you see the low-battery screen when you plug in, let your device charge for at least 10 minutes (20 minutes for iPad) before using it.
2. Reset your device while it's plugged in.
3. If resetting doesn’t fix the issue, restore your device.
4. If you still see the issue after you restore, contact Apple Support.

Thank you for using Apple Support Communities.

All the very best,

Sterling