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Huawei Mate 20 Pro started selling in Sweden last week. We and most of the other readers loved the phone, but it seems like a launch with problems. Many users, both abroad and in Sweden, have reported problems of shades changing to green. The problem is subtle in daylight but clearly in dark rooms.
According to some reports, the problem only occurs after a few days. As it looks like a problem similar to that encountered by Nexus 4 at launch, which turned out to be poorly glued screens, it's almost possible to assume that it's the same glue problem that is late . The fact that the error occurs after a few days would be due to the fact that the glue did not dry properly from the beginning. Until now, however, we have no official comment from Huawei.
We did not encounter the problem ourselves on any of the three copies we had, including what we have now, but we have readers who have heard of the concrete experience of the problem. The problem seems to be relatively widespread when we heard about people who changed phones and got a new one with the same problem.
The problem seems to concern mainly the screen of mobile phones manufactured by LG, while the screens manufactured by BOE seem not to pose problems. Anyone who has a Mate 20 Pro can control himself the screen maker with the following application: https://play.google.com/store/apps/details?id=ru.andr7e.deviceinfohw . It is possible that the blue variant is mainly equipped with a BOE screen, because those who replaced their defective phone in black or light blue seem to have escaped the problem. However, the test copy of Mobil is at dusk, with the BOE screen.
We have searched for a comment on Huawei and will be back as soon as we receive an answer. We recommend anyone with color change display problems to return their phone.
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