Yellowish smudge seemingly affecting some OnePlus 3 screens31
Two OnePlus 3 users made videos - embedded below - to illustrate how the yellowish smudge is covering large portions of the screens when they display grey tones. Granted, most of the customers who purchased a OnePlus 3 don't seem to have encountered this problem, so this shouldn't be a reason not to buy the phone (if you were planning to). Plus, if you do buy it and you discover that, for whatever reason, you don't like it, OnePlus allows you to return the handset within 15 days, no questions asked.
Released earlier his month in select markets, the OnePlus 3 costs $399 (unlocked), and offers plenty of features that you usually see only on more expensive smartphones, including a Snadpragon 820 processor, and a lot of RAM (6 GB, to be precise). You can find out much more about the device by checking out our OnePlus 3 review.
source: OnePlus forum