No Sir, no condensation.

I did not leave it uncovered at anytime. I do have another Pentax K7. I sent a mail to nikon auth center here but they would be accepting the camera for repairs after 08 Jan as the tech is travelling... strange.

I bought from Nikon dealer in Dubai- but here they offer only one year warranty on camera.

BTW, there is no external injury to the LCD. Some wise person told me that the problem may be with data cable.

I had gone on a Dhow cruise and am sure that there was no impact or exposure to high temperature. I just changed battery and it happened. Hard start did not help. I bought it with a debit card but my seller says that the warranty expired on 24 Oct 2017.

My one year old Nikon D500, just out of warranty, developed vertical colored line on the right 1/3 of the screen. It does not affect the pics. There is no history of any impact or injury to the camera. Any spot diagnosis?