Hello!
I wonder if anyone had this issue. Yesterday suddenly the backlight of my XT894 started to act weirdly. When i pressed the unlock button, the screen would go very bright and then shut off after 2-3 seconds, but I still could swype the unlock screen and hear the unlock click, even with the dark screen. With a little bit of external light I could see the image was there, but the backlight of the screen was not on. I went on to the power shortcuts and disabled the Automatic brightness control, and as soon as I did that the display turned on, very dimly but it turned on. When I set the brightness control to maximum, it still is very low. If i set the brightness to minimum, its almost impossible to see anything. In display settings, the automatic brightness is unchecked and the brightness fader is set to maximum.
I started suspecting the light sensor, so I went ahead and downlaoded a sensor tester app, and the light sensor appeared to be reporting the light levels correctly - low readings in the dark, and much higher readings in direct light.
Is my phone backlight dying? Any idea if this might be due to defective mainboard, or the display itself?
I already did some repairing on the phone myself, so I am comfortable dissassembling it and changing parts. Few months ago I changed the main board because my old one had a broken usb connector, and it worked fine until now.
Any advice would be greatly appreciated!
Thank you in advance!
Best regards,
Konstantin
If I remember right, by default, the maximum auto-brightness is still lower than actual maximum, so if the screen can barely be seen at manual max, it makes sense that the screen is pretty much unviewable with auto on.
Idea:
If you have it installed, boot into Safestrap and see if your brightness is normal.
If not, pull up the diagnostic menu (hold Vol - while powering on iirc, might be Vol - and +).
If your brightness is normal in those, it's probably something gone wonky in Android. If not, your screen backlight might be going and needs replaced. I don't think there's anything on the mainboard that would cause it, aside from the circuitry actually supplying power to the backlight...
Screen replacement actually isn't terrible for the D4, if it comes to that, since it's not fused to the glass (like certain single-piece phones for example...*sideways glance at the S3*).
Hello!
Thank you for your reply!
Effectively something is very wrong with the device. Today I woke up to find it completely unresponsive, had to turn it off by holding the power button for a while. When it turned on again, the whole screen was white with glitchy color lines since the very reboot, and nothing else happens, couldnt even turn it off without unscrewing the battery.
I will put the old main board to see if the other one died.
Thank you again!
Best regards,
Konstantin
Hi, got an HTC one recently but i'm having problems with autobrightness seems like the low brightness setting for for phone turns screen completely off. I went to brightness setting manually and drag the slider to the lowest point but the screen will completely turn off just before it reaches the last point so i downloaded lux from the store and checked it the screen while turn off below 15 lux. So my question is, is this a hardware defect or can i install firmware or anyother software to calibrate the light sensor? thanks guys.
Whenever i use my phone, its screen brightness dims (Adaptive brightness is OFF) and when i pressure the top right part of the screen the screen gets normal for a while. I've tried to get it fixed from service center 2 times but the problem comes back after few weeks. I've also found out that if i press the top-left part of the screen, it dims the screen brightness. Can someone tell me what the problem is.. Is it some loose wiring or is it damaged display?
Hi
I recently had my Huawei P30 Pro fixed and the screen brightness is terrible. When outside, even if cloudy, you struggle to read the screen.
This was definitely not the case before I had the screen and battery replaced. (was 3 years old, and the screen had some moisture in it from a very rainy hike). The phone shop (not Huawei, as outside of warranty) said they used official Huawei parts.
I barely notice a difference between brightness halfway and brightness to full when I adjust it manually. It doesn't even detect that it needs to put the brightness on full automatically when I'm outside, which is strange.
Any ideas?
this is interesting. I have been having this same problem as well. With mine, if I wake it from lock in the sun, it will work perfectly, super bright and readable, but only for like 15 seconds, then the brightness slider goes down to about 75% and it is almost unreadable. If I try to manually put the slider back to 100% there is no change to the brightness. Very similar to your problem, there is no difference in brightness between 75-100%.
If i lock the screen for about a minute and open it back.. boom 100% fully bright for another 15 seconds.
Mine started giving this problem before I had to open it up to change the microphone, so I'm not sure if it's happening with firmware on only certain panels? This has been happening to me since July 2021, so no firmware releases have fixed the problem.
Hello everyone there, I've bought a used OnePlus 7 pro a few days ago. But I'm having an issue with it.
Whenever I turn brightness to full, screen starts becoming small and big and small and big. I've tried turning adaptive brightness on and off, removing the screen protector, and rebooting into safe mode but nothing works.
I wanna know if the problem is with software or my phone's screen is damaged?
If this problem is with the screen then how the screen recorder is able capture it?