Q: After download of os 8.2 screen turned pink and blue and flickers

Hey there Harold499,

I understand that you are experiencing some issues with your iPad screen. I have an article for you that will help you troubleshoot this issue a little further:

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.

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

https://support.apple.com/en-us/HT203039

Since you have already reset the iPad, I would recommend that you start by restoring the iPad, then proceed from there. Take care, and thanks for visiting the Apple Support Communities.

-Braden