Screen goes off after some time - OnePlus 7 Guides, News, & Discussion

Hi, everybody! I have got a second-hand OnePlus 7 that seemed OK, but I found out that after several minutes of working OK the screen goes off. I changed the recovery partition into TWRP, but the screen goes off also from recovery. The problem seems to be of hardware. I opened the phone and looked for simple things as loose contacts, but I found nothing conspicuous.
Has anybody has such a problem? Thanks in advance!

Did you check after the screen off out the operation of the phone n.p. by the command: adb devices?
If it still works, it's a display or ribbon problem.
If it does not work, then a problem e.g. with overheating of the component.

Related

[Q] Touchscreen freezing randomly - please help!

Hi, I've been using ViperS 5.1.2 for some time now on my Sensation XE, and it used to work great for me. But since a few days I've got this really annoying freezing problem and I just cannot find a solution.
The touch screen just freezes without any reason, sometimes after using the phone for half an hour, but most of the time within a few seconds after unlocking the screen. When it freezes, the screen won't respond to anything, also not on the back or home button. If I use the on/off button though, the screen will respond again for one or more seconds. This happens randomly; a lot of times I can't even unlock the screen properly, and the rest of the time I only get the screen working normal for a at most 10 seconds. This way it can take a few minutes just getting to the settings menu, for example. The phone does not report any error; after using the on/off button it just goes on where it froze. Also the phone reacts to tilting the screen. Or when playing a video, this just keeps playing normally. So it seems to be purely the screen itself...
I tried a lot to figure out what could be the cause of this problem: uninstalled a lot of recently installed or updated apps, checked the amount of free space/RAM, cleared cache, Dalvik, used nandroid backups to return to a previous (in the past good working) state, tried if removing the sd card would make any difference and finally flashed the rom again. All to no avail; the problem keeps occurring. At first, after trying out a possible solution like the ones I've mentioned, it looks like this did the trick. Sometimes the phone appears to work normal for at most half an hour. But then the problem occurs again, and will at that point occur at a high frequency.
I am out of idea's right now and am getting quite desperate. I need this phone to work properly badly, as I will go on my vacation in a few days and really need to be able to use some of my apps then. So I do hope somebody can help me out here? Any help would be greatly appreciated!
Does it do this while connected to the charger or usb.??
sent by v.konvict
v.konvict said:
Does it do this while connected to the charger or usb.??
sent by v.konvict
Click to expand...
Click to collapse
Yes, does not make any difference. I found today that the phone is now also acting strange in clockworkmod recovery touch, that's for the first time. Can't properly use the touch screen there either any more, only with hardware buttons. So now I guess this should really be a hardware issue. Maybe the phone is just dying...
Yess its a common thing for our phone to act that way while charging.... It has somtheing to do with its poor grounding. You can find threads to help u with how to solve it.
sent by v.konvict

Replaced screen, not booting

Hey guys,
just replaced my screen by myself and it isn't working. It boots and the screen lights up for a few seconds but thats it. So it seems like I ****ed up somewhere. :/
Now I've got some questions for you guys.
1. What could cause this error? Since it's already not working I don't mind taking it apart some more and trying to fix it.
2. Do you think if I send it to the support from OnePlus they will take a look at it?
3. The whole reason I did this was to get my data back. Is there any way to access the data on the phone without the touchscreen? I encrypted it using CynogenMod. USB-Debugging is enabled.
Thank you so much guys, I'd really appreciate some help. This **** is really tearing me down since it was a lot of work.
I did this on my own phone but Idk about OPO. If you use the power+voldown method to boot into recovery (yes ik nothing on screen) then connect a usb and see what happens
If you power it on, wait 5 mins then call it and if the phone rings you should be able to rule out the display and speakers and storage, obvs if the display is still not on at this point it is probably the display.
you can also adb from recovery and or fastboot so you should be able to see it in there if it is still working (make sure you change the phone for a decent amount of hours before you do any of these) If the display is dead its likely its been on for the last day and dead
Sorry for the late answer, really appreciate your help!
So if I connect the phone to the PC (tried it in recovery and in normal mode) windows detects the phone under "Devices" but sadly if I type in "adb devices" in cmd it doesn't detect the device.
But still, windows is detecting the phone so it seems to still function. I booted into recovery and I could use the touscreen and the lower buttons. I couldn't see anything but it was vibrating whenever I was using the touscreen. So it seems like only the display part is broken.
Can't call the phone since it's fully encrypted so I need to type in a password before booting anything (recovery, normal mode, ...)
I'll try to contact the vendor of the display and see what he has to say.
If anyone got any more tips I'd appreciate them. I'm a pretty big noob so I even appreciate "common sense" tips.
I know this may be a "common sense" thing to say, but double check your connections. Sometimes the connectors aren't made properly and a pin could be covered so you can try connecting and disconnecting several times to see if it clears up.
Since the touch screen was registering and vibrating, then it could be the backlight that's broken. Try holding a flashlight at an angle and see if you can make out anything on screen. If it's the backlight, then you can probably back up your data in case your phone does end up breaking.
reconnected everything multiple times and also tried the flashlight trick. sadly with both no luck
but something good:
adb recognizes my phone in "recovery"
bad news: no commands work, most likely because the phone is encrypted. if I enter a command nothing happens, it looks like its loading forever.
any ideas?
Hey!
I also had the same problem after I replaced OPO's screen about one year ago. The replacement screen was from ebay.
I could see the Cyanogen logo but after a few seconds the screen became black. Booting into recovery mode worked well.
On the video also ROM boots well but the screen stays black.
https://www.youtube.com/watch?v=VcWDCJIkPKQ
Eventually, the screen was defective and I returned it and bought new one.

Black screen but phone boots, Z3.

Hello All,
Basically what happened is this:
I got phone D6603 with "Vodafone protect" lock on and owner gave me a possible code for phone. I replaced screen and then found that lock requires only numeric pin, not what I was given. So, he then reset pin and deactivated lock, but I still had it on no matter what. So, I tried to flash new firmware into it for same phone and got it done, but now phone screen stays black all the time with only backlight on. Phone seemingly loads something (probably the new phone welcome screen after flash), which I cannot see, but when connected to computer from fastboot or something then all system files are visible.
When I boot phone from off position, it boots to a point where I can use side button to switch on and off the screen but touch does not respond because nowhere it reacts to touch or maybe I do not know where and what to click on screen.
What could be the likely solution? I do not think that phone is bricked, but something is wrong with system as it does not light up the screen properly. I tired flashing 2 times successfully with same result.
Any advice would e appreciated.
Hi, can this thread be deleted because I am getting phone swapped and thread no longer relevant? Thanks.

Galaxy S8+ black screen?

Hey there,
I have got a Samsung Galaxy S8+,SM-G955N.
Some days before,my phone was stolen by a thief,then I asked for the police for help.The police found the phone for me in the end.
I was so happy at first for my phone was survived.But then I found my phone's screen is always black.When I connect my phone with the wireless charger and charger,I can hear the sound of connecting the power,and I can hear the notification sound,when someone calls me,I can hear the ring!And "hi,bixby"also works!I wonder why?!
I have rebooted so many times,and tried to reboot the phone to recovery mode and download mode.I ended up with failure.
(My phone has been flashed a custom ROM and TWRP.My phone has a lock screen password and lock screen protect which means you can't reboot and power off.)
I really don't know what the thief had done......But my phone wasn't fall off from high places I can be sure......For the phone has a perfect body.)
Then I tried many times to reboot one day the screen recovered! But I found that the screen is not stable,which means it has many bars,it will disappear and then appears at another zone.Just like the old TV set.
I want to wipe /data,then I rebooted to recovery mode.But.:crying:the screen then do not working...... Just like before.
Then I tried many times,I entered the recovery mode.The screen works in the end,but the colours seems very strange,a little purple.and the touch screen don't work at all.I used the mouse to swith the brightness in TWRP,but when I turn the brightness to over 80% or lower than 40%,the screen looks dark.I can hardly see the contents.
So I want to ask you all for help,is this a hardware or a software issue?How can I solve it?
Thank you all and I love you all!!!!!!!!!:crying:
I am a student......And I am so poor.....
Thank you all again!!!!!!!!!!!
I'm hoping you have warranty. Seems like you have done a thorough job at trying to problem solve. I'd head to a repair place for a quick confirmation and maybe repair.
seems like a broken/damaged flex in the screen

Backlight on, no image

Hi guys,
I am experiencing the wierdest thing on my brother's Xperia Z3.
2 days ago, the phone randomly stopped showing images on the screen, but the backlight would still switch on and off as normal when pressing the power button. If the phone is restarted in this state by using key combos, the Sony logo won't even show up. This problem started intermittently, but now it does this for a much longer period. The issue would usually occur after the phone being locked, or if it were being used, the screen would show horrible distortion on the bottom half and become non-responsive until the screen switched off and any attempt to switch it on would be make the phone behave as described earlier.
I used to be able to make the image work by plugging in the USB cable, but this method seems to have stopped working, or at the very least has a really low success rate. I have tried all the soft reset methods: Power+VolUp, yellow button in the sim tray, none of those work for me.
I have just stopped short of reflashing the phone with Flash Tools.
Has anyone had this problem before? It is really confusing me as to whether this is a software or hardware issue.
Any suggestions?
I reflashed the phone using Flash Tools and the phone is still behaving the same way; just the backlight is turning on. Besides that, the phone seems to be making the correct noises and responding to the USB cable. Anyone have any ideas? Could it be the screen itself? I'm worried that it may be the motherboard.
Ok, I found something that works. If I hit the device with my hand on the back or the screen a few times, it seems to bring the phone back. My suspicion is either a loose screen connector or something on the motherboard. I'm not really comfortable with opening the phone up, so this is going to be my go-to solution. Hope this is able to help someone.

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