iPhone 4 Yellow Spot Problem Could be Resolved Automatically

Since the deliveries of the iPhone 4 started a couple of days ago, a few people have been reporting problems with a yellow band or yellow spots on their screen.

We now hear that these yellow spots are actually fading with time. It appears that it takes a day or two for the spots to go and from what we understand, it is just the bonding agent that needs to dry fully. The reason the glue isn’t 100% dry is due to how fast Apple [AAPL] are having the iPhone 4’s manufactured.

Apple is using a bonding agent called Organofunctional Silane Z-6011 to bond the layers of glass. Apparently, Apple (or more likely Foxconn) is shipping these products so quickly that the evaporation process is not complete. However, after one or two days of use, especially with the screen on, will complete the evaporation process and the yellow “blotches” will disappear. How do I know? I was involved in pitching Z-6011 to Apple.

Does your iPhone 4 have yellow spot or band issues on the new retina display? If so, are the yellow marks starting to fade away? Our own iPhone 4 here doesn’t have the issue so we can’t really say if the marks go away with time or not.

Via: Apple Insider and Engadget


  1. Rakesh Solanki says

    Thank Good i have no such problem with my iPhone.

  2. After unboxing my iPhone 4 I immediately noticed the yellow spot in the bottom left corner and along the left side of the screen. I called apple and they set me up with an appointment at my local apple store. By the time I made it to the store the yellow spots were slowly fading. However, I replaced the phone with a new one in fear that this issue may not completely go away.

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