Iphone -display (4s) 16gb-problem-urgent reply needed?

My iphone is not workin.i.e, when it is switched on it will be fine but when i switch it off it never switches on… It will come up after 10-15 resets. I can't see anything but a few blue lines and a few grey lines around screen… Please help me. It is recognised by itunes… Tried restore. But nothing helps… It alerts when charger is connected. If i leave it idle for a day it will work normally with a white halo around the screen. Please helip.
awaiting your reply

Added (1). I tried reset, restore… Nothin helped. In diagnostic report it says boot failure log:1

If nothing is wrong with the outside, then it's probably a software issue. If you still have warranty, contact Apple. If not, try to get fixed.

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