Chosen Solution

when phone boots it shows a blue screen for three seconds then goes to the lock screen. Phone then works for a while, then screen gets cloudy. Any ideas? Phone is running ios 10.0.2 and was doing this since 9.3

Has the phone been repaired before (e.g screen replaced)? Usually for screen going cloudy it’s either long screw damage (When the longer screw out of the 3 for the metal plate covering the front screen cables are used on one of the lower two screw holes) or a damaged LCD ribbon cable / connector / or faulty screen (usually due to physical damage). The last time I had this issue with the screen going cloudy it was due to a faulty screen (LCD connection was bad).