UPDATE: It seems that Huawei is removing all the videos and Facebook posts abotu the Huawei Mate 20 Pro green screen issue. Luckily we managed to cache images and posts regarding this issue before it was taken down.
Over the last few days since the grand launching of the Huawei Mate 20 Pro, there were reports of their Mate 20 Pro having green screens. They seem to be pretty rare at first, but within just a week – there are many more reported issues of this green screen issue on the Mate 20 Pro.
We personally saw the first reports of such issues at Huawei 吹水站 on Facebook, but was quickly dismissed as a rare issue. However, that’s not the case as more and more users started reporting this issue.
Reddit user /u/Dinkleberg162 from the UK has reported that his unit has the same issue as well. We now know for sure that the issue has spread to countries other than mainland China and Malaysia.
On XDA Forum, user NewtScamander compiled a list of users of has reported such issues. It’s not the entire list of users – but we can grasp the scale of this Mate 20 Pro green screen issue with just this one thread.
Sain eilen käsiini uuden Mate 20 Pron. Pikaisella tarkastelulla ei ollut havaittavissa vihertävyyttä, mutta katselin juuri täysin pimeässä, niin kyllähän sitä löytyi. Ensimmäisessä kuvassa 50% kirkkaudella, toisessa 0% kirkkaudella. pic.twitter.com/eJkojD9nyW
— Eero Salminen (@Eerzan1) November 2, 2018
Another report is from the editor-in-chief of Finnish technology site suomimobiili.fi, who experienced the Huawei Mate 20 Pro green screen issue as well.
Another user published a video on YouTube showing that the issue actually changes as varied. In this video, it is shown that at higher brightness, the green tint disappears, but reappear as the display dims down again.
The Mate 20 Pro is using a OLED display and it is curved at both the long edges a la Samsung Galaxy S and Note series of smartphones. it’s the company’s second attempt in doing such a feat after the Mate 9 Pro.
There are many speculations saying that the issue might be due to a glue that is still wet – hence the term “gluegate” – which caused this green screen issue. This issue is also common in the Nexus 4 and OnePlus One, but those are using LCD displays and the glue caused a yellow tint, not green. Also, once the glue is dried, the display “fixed” itself.
The other speculation is that the display driver on the Mate 20 Pro is problematic. As seen in this post on Facebook, the display flickers in and out and the bottom half of the screen experienced the most flickers.
One more report states that the Mate 20 Pro actually has two manufacturers who made the OLED displays. One of them being LG – and users are claiming that LG displays are the defective ones. We have no way of identifying the batch of defective Huawei Mate 20 Pro as of now.
Fortunately, our unit of the Mate 20 Pro for review is doing fine. We are unable to identify the issue or recreate it. Our review of the Mate 20 Pro will be coming soon too, by the way.
Seems like we spoke too soon! We found that the display quality is sub-par with other better AMOLED quality screens. The green tint issue is only appearing for this unit alone, but the fringing issue persists on multiple units we tested.
Currently, Huawei has not issued any official statement yet – and the issue is only getting more widespread by the minute. We’ll update this page once again when we have more information.