Yellow screen

[Kilek]

Hi

I own an Xperia XZ Premium since a month ago and at first day I realize that the screen was very yellow, I owned two Xperia Z5, a Z3, an Xperia SP, V, Xperia S, P, and U, keep every one of them, and this screen was very yellow compared with any other Xperia Phone side-by-side, at first I though it was something about the HDR and de colour calibration Sony made, so I changed the white balance and I keep the phone for one month

But today I had the opportunity to use other Xperia XZ Premium from a friend and compare the screen with my own XZP, and the other phone screen was literrally perfect, white was white as use to be in mi Xperia Z5, not yellow, also the max bright was clearly higher in the other XZ Premium, so clearly more color accuracy, and clearly brighter, in the same phone, so something is wrong with my phone, so I go to white balance settings, tried to match the same white balance calibration (actually the Xperia XZ Premium from my friend has the same white balance than my 2 Xperia Z5) on my screen but there is 2 problems:

1) When you match the white balance, the screen stays way darker than the correct Xperia XZ Premium

2) In HDR videos your personalized white balance settings turn off, so in every HDR content the yellow screen keeps showing yellow colours 

I started Xperia Companion and made a software repair but the screen still yellow, tried 3 more times and nothing, screens still yellow

So, I had to send it to replace the screen or what? 

Is that a known issue or something?

Edit: Also compared with another 2 Xperia XZ Premium from a Store, both had perfect white balance calibration while my phone was clearly yellow and darker, so 4 Xperia XZ Premium tested: 3 with literrally same perfect white (the three looked exactly the same) and 1 (mine) with evident yellow screen, (tested in Service Settings>Display and in white balance menu)

[NunoSEN2]

Hello @SamDC;

I  also have a Xperia Z5 before my XZ Premium and the white balance in the predefined values is in fact warmer (yellowish) than the Z5, however I don't know how much yellow your screen is and if there is any problem with your screen. Your best bet is going to a store and compare your screen to another XZ Premium with the same setting values of the screen. 

[Kilek]

Already done today

Compared with 3 Xperia XZ Premium 2 in the store and 1 from a friend

On each one i go to dial and type *#*#7378423#*#* (service)

> Service Tests

> Display

And compared

Each one of them has a perfect screen, with perfect white balance, mine is clearly yellow and clearly darker (in that test the screens uses max brightness)

So, its not only something wrong compared to Z5, because I though the screen calibration had changed between Z5 and XZ Premium, thats why i keep it for a month, but its not only different compared to Z5, it is clearly wrong compared with another 3 Xperia XZ Premium, the other 3 had the same screen colours and the same exact white balance, so its definitely something wrong with my phone screen

[Maritomorang]

Yo también tenía ese problema, pues me fui a un centro sony y compare con celulares de diferentes colores y resulta que los de color negro tienen la pantalla amarilla.. Me explicaron que depende del lugar de ensamblaje y que la pantalla no tiene problema alguno.. 

I also had that problem, because I went to a sony center and compared with cell phones of different colors and it turns out that the black ones have a yellow screen. They explained that it depends on the place of assembly and that the screen has no problem. .

GT

[Kilek]

No, lo compraré con 2 de color negro y uno plateado y los negros también tenian la pantalla correctamente, exactamente igual que el plateado

--

No, I compared it with 2 deepsea black and 1 silver and the black ones also had a correct screen balance, exactly the same than the silver one

[Kilek]

Okay, so I replaced de screen, full frontal replaced, and it still looking yellow

I realized is not the screen, becouse when you turn on the phone, while Sony logo shows, the white background looks white, and when Android logo shows, with White background too, after few seconds the white turns yellow, so I assume its something about software 

But I tried flashing another firmware from 7.1.1 and still the same

So if its not the screen and its not the software, it must be de motherboard or the graphic hardware, so whats next? I demand to the tech service to change the motherboard?

Ist cheaper for Sony changing my phone for another one? This is gonna take long, they keep my phone for almost 1 month and the phone come back with the same issue, they changes the screen, now they will have to change the motherboard, and who knows what more, including the shippings and the work, i think the better and the cheaper for them is to change the phone for some other refurbished or something