Chosen Solution
found a white vertical line in the middle with it only bought for 4 months, can it be repair if bought back to apple?
Probably not unless the Original Owner had Apple Care and extended it to you. Or you purchased this from a store or refurbish site, or with a Credit Card (Credit cards do offer warranties, and if you contact them they may be able to assist you in resolution/restitution with/from the seller). You can go to or contact Apple for an estimate - they may cover it. Have you verified the line does not appear on an external display? If it does you have a GPU/VGC logic board issue. On these machines the “DIY fix” for a bad display is to replace the entire display (display & cover are all one unit). If this answer is acceptable please remember to return and mark it.
