S7 EDGE screen keeps flickering - Samsung Galaxy S7 Edge Questions and Answers

I recently got a 2nd hands S7 Edge. It had a software issue (I'm guessing he tried to install a custom Rom but forgot to unlock the BL...). So I reinstalled stock android 8.0.0 and it went successful. Before I installed android, it already had a glitchy flickering screen. When brightness is MAX and it's on AUTO, most of it disappears. But when the phone gets a little hot, it comes back. This is very annoying since it's on the bottom of the screen and there are a lot of buttons there, so I can't really see where I'm pressing. I have tried master reset via android recovery. Nothing happened. I have also tried via safe mode, still the same. I have checked the Liquid Damage Indicator and it's still good. There aren't any major scratches on the screen. Just a some small scratches on the home button. And the glitch already appears when the Samsung logo comes up. Idk if this is useful but the glitch isn't visible in a SS.
I hope someone can help me with this.
I will post pictures in like an hour, because this is the only phone I have access to.
Thanks in advance!

Related

[Q] S5 screen problem

Hi i have problem with my s5 display, it starts going crazy like scrolling up constantly, when i use it and then switch the power button to shut thr display the phone does not power back up unless i remove battery, otherwise the two button lights only show.
Prior to this problem, it started when my mic at the bottom stopped working, and then the pinnacle point was when i unrooted my s5 and rebooted, immediately the colors turned to different tints of colours.
The next day it started going all fuzzy and scrolling up.
Took it to samsung but waa refused as i found out about the knox counter lol
I have my usb port dock part which im ready to replace on my mainboard. But what ia causing the funny display ? I can barely use my phone, the digitizer seems fine aa at times it works for like 5mins.
What ive tried:
Factory reset
Reroot
Phoenix rom
I have a video to show you guys.
youtu.be/nYgBp2VAfFo
Video is private
...

[Q] Touchscreen Issue

So I'm here in the US, but I'm using the Korean SHV-E300L. About a week ago, my phone fell off my bed and cracked slightly, but the touch screen responded perfectly. However, last night while I was texting, I noticed the screen scrolled a little slower than normal, and I couldn't quite text as fast. Today everything was normal until a few hours ago, where the screen would seem to hang and not respond, and sometimes the notification panel would start to drop, but never fully descend. I went into developer options and turned on "Show touches" and it shows a persistent input in the upper left corner of the screen. Other than replacing the screen, is there anything software related that I can do about this?
jkid218 said:
So I'm here in the US, but I'm using the Korean SHV-E300L. About a week ago, my phone fell off my bed and cracked slightly, but the touch screen responded perfectly. However, last night while I was texting, I noticed the screen scrolled a little slower than normal, and I couldn't quite text as fast. Today everything was normal until a few hours ago, where the screen would seem to hang and not respond, and sometimes the notification panel would start to drop, but never fully descend. I went into developer options and turned on "Show touches" and it shows a persistent input in the upper left corner of the screen. Other than replacing the screen, is there anything software related that I can do about this?
Click to expand...
Click to collapse
Do you have a stock firmware or custom? If you have a custom try re-flashing it if you never had issues with it. The best way to go is if you are on stock firmware soft-reset your phone by holding the power button until it forces power off then turn it back on. If that doesn't fix your issue then your hardware is messed up.
The S4 screen is very sensitive and I hate it sometimes because the smallest air bubble on my device makes the screen go crazy touching all kinda stuff. Good luck!
NYCDianand said:
Do you have a stock firmware or custom? If you have a custom try re-flashing it if you never had issues with it. The best way to go is if you are on stock firmware soft-reset your phone by holding the power button until it forces power off then turn it back on. If that doesn't fix your issue then your hardware is messed up.
The S4 screen is very sensitive and I hate it sometimes because the smallest air bubble on my device makes the screen go crazy touching all kinda stuff. Good luck!
Click to expand...
Click to collapse
Well I literally just rooted it after posting this because I needed to get some files. But it's the stock ROM, firmware, etc.
jkid218 said:
Well I literally just rooted it after posting this because I needed to get some files. But it's the stock ROM, firmware, etc.
Click to expand...
Click to collapse
try doing a soft reset then it should help or at least im hoping so.
It hasn't worked but for some reason when the phone is in landscape it does a bit better. I'll try to do a screencap video
Also, If I just unlock the phone and let it sit, no touches register

Screen stopped working with strange moments

Hi,
After Xmas I made factory reset with TWRP and I made an upgrade to CM13.(6.0)
It was working fine.
When I was trying to make next daily update, after reboot, screen became black and nothing shown up.
I was trying a lot of things since that moment.
When I was going back from service point (I really want to sort it out) when they told me it is probably LCD broken (i have broken glass, but 1 year ago, so I do not believe it can be screen),
when I take phone out I spotted that keys are highlighted so I swiped and it locked out and shown screen! it was working perferctly fine,
so I decided that it is best moment to flash newest CM to solve issues, but after reboot screen was black again.
I can enter download mode so it is visible in Odin, but screen is black in every mode.
There is only quick flash on screen when turning on and also really short moment of Samsung Galaxy logo which becoming dark quite quickly.
I flashed stock rom(5.0), but nothing changed, despite of that I know phone is turning on somehow because I hear music on turning on...
Can someone help?
I really doubt that it can be hardware issue.
Can it be something with BL ? How can I solve it...?

S7 edge screen went black but phone not dead

i was using my s7 edge today, and in the middle of browsing facebook the screen just went black, the phone didnt die because the navigation buttons still light up when i press back or recent, also i still get notification light, i tried to do a hard reset to restart (holding power and vol down) but the phone and it still has a black screen.. anyone know what i should do? or has this happen to anyone
Sent from my XT1635-02 using Tapatalk
This happened two days ago with my wife's S7 Edge. She was using it to text me about dinner plans after work, her screen shut off, and it wouldn't work for several hours. The thing was getting very hot. When she was home and charging the phone the screen started working again for a little while, but with several green stripes down the right edge snd aa flashing horizontal band of grey near the top overlaying the screen image. Then when I tried plugging it into my computer to use Samsung's Smart Switch to roll back from the update she had accepted while at work the screen died again. It has not come on since, not even the stripes, and blue or red LED lights once in a wwhile at random. I managed to use Smart Switch to wipe the phone's memory. Then the program took several hours to download something very slowly and install that - a whole new OS update? That completed, and now the charging LED works correctly and the green stripes and grey band are back, flashing rapidly when powering on. Otherwise no screen function.
She is now trying to find a new phone, but definitely NOT a Samsung. This S7 Edge has already had the screen replaced once, just before the first year warranty ran out, as it did almost the same thing - in March the green striping (plus pink) appeared along one edge and the battery was running out very fast, the phone overheating so much that she found it uncomfortable to hold. We argued with Samsung a lot until they replaced the screen. Something is VERY wrong with this model. She's considering an LG. What a waste of money. One would expect a thousand dollar phone to last longer than this.
I am facing what I think to be the same issue with my son's phone. Green line down right side edge. Screen turns on for a second, then black screen. It's on, but can't do anything. Did you find a fix for this?
No. Today I gave up and took my wife's S7 Edge to the authorized repair centre. They say they'll run a diagnostic for $25, and if the screen needs to be replaced it will cost $385. Brilliant. If this thing gets fixed I will be running custom ROMs on the phone, probably an RR, as it seems Samsung's OTA updates kill phones.
Turned in out the authorized repair centre for our region, Acura in Surrey, BC, went ahead with the screen replacement without our authorization. I specifically said in a note given to them at the time that they were to ask first. But they didn't bother. My wife decided she liked the phone enough to pay over $400 to get it back. It's been working for a few weeks now. Hope it stays working. At this point I have a strong feeling that the S7 Edge was a poorly made device, at least some batches. The reports of these screen failures are just too common.
Check if your screen still alive or maybe connected correctly, here is a way to do it:
1- plug it in your computer then start smart switch
2- dail *#7353#
3- you can now test any thing in your phone
4- search for the TSP
5- try now to touch your device screen
If it display in the computer that mean the touch is working but the screen is not
If the toch is not working you have to check the cables if its connected correctly inside your phone
But if you have warranty don't waste your time and let them fix it, and don't forget to backup your files

Oneplus 5 Black screen after replacement

My OP5 screen had a small crack so I decided to repair it. After following the tutorial on youtube step by step the phone powers up fine. But as soon as the screen goes to sleep, it get stuck in black, although it feels like responsive (Ican hear the clicks and vibrates and all) but it wont wake up
imercado said:
My OP5 screen had a small crack so I decided to repair it. After following the tutorial on youtube step by step the phone powers up fine. But as soon as the screen goes to sleep, it get stuck in black, although it feels like responsive (Ican hear the clicks and vibrates and all) but it wont wake up
Click to expand...
Click to collapse
Could you wake up the screen? Maybe it's a connection problem or related to the proximity sensor?
Did you ever find a solution to your problem? I have exactly the same problem, but it happens only with Android 9.0. Oreo seems to be working OK, but as soon as I upgrade to official 9.0, the screen won't wake up from sleep. The backlight turns on, but the screen stays black. The phone works OK as long as I use it, but if I press the power button or let it to enter "standby mode", it will stay that way (off). I suppose it has something to do with the replacement screen, but since it works with 8.0, I wish there was a workaround to get the LCD to work with Pie too.
Same problem here. Replaced display too.
I've had a similar issue with a different device before (ZTE nubia Z7 mini). I replaced the screen and it would work correctly, but when I booted TWRP, I would get a black screen. I figured that because the replacement screen was not an OEM one, it may have something to do with LCD drivers in the recovery. I used the old cracked screen with the device opened up to navigate in the TWRP recovery, and I flashed an newer/different recovery. Voila, the new recovery worked with my replacement screen. Based on this experience, it may just be an LCD driver compatibility issue with the replacement screen, causing the screen to just go into forever sleep mode. The driver may need to be changed or tweaked in the Pie version for your replacement screen to work with it. Just a thought, not fully certain.
iwantademo123 said:
I've had a similar issue with a different device before (ZTE nubia Z7 mini). I replaced the screen and it would work correctly, but when I booted TWRP, I would get a black screen. I figured that because the replacement screen was not an OEM one, it may have something to do with LCD drivers in the recovery. I used the old cracked screen with the device opened up to navigate in the TWRP recovery, and I flashed an newer/different recovery. Voila, the new recovery worked with my replacement screen. Based on this experience, it may just be an LCD driver compatibility issue with the replacement screen, causing the screen to just go into forever sleep mode. The driver may need to be changed or tweaked in the Pie version for your replacement screen to work with it. Just a thought, not fully certain.
Click to expand...
Click to collapse
You're probably right about the driver issue. My OP5 has no problems whatsoever with Android 8.1, but 9.0 won't work no matter what I do after waking up the device. The backlight turns on and and off for a few times after which nothing happens. The phone is still working normally, but it's in "blind mode" (music will continue playing, volume buttons work...but they're kind of slow and laggy) Too bad that the latest update (9.01) didn't fix this issue either. I really wouldn't hold my breath getting this issue fixed anytime soon (officially) as it seems to be a cheap 3rd party screen problem.
edit: I tried the custom recovery (20181227) and the same thing happens there. Once screen goes off, it won't come back on.
Edit 2: gave up on the replacement screen and ordered an oem lcd. Lets see how it goes.
sbasil said:
You're probably right about the driver issue. My OP5 has no problems whatsoever with Android 8.1, but 9.0 won't work no matter what I do after waking up the device. The backlight turns on and and off for a few times after which nothing happens. The phone is still working normally, but it's in "blind mode" (music will continue playing, volume buttons work...but they're kind of slow and laggy) Too bad that the latest update (9.01) didn't fix this issue either. I really wouldn't hold my breath getting this issue fixed anytime soon (officially) as it seems to be a cheap 3rd party screen problem.
edit: I tried the custom recovery (20181227) and the same thing happens there. Once screen goes off, it won't come back on.
Edit 2: gave up on the replacement screen and ordered an oem lcd. Lets see how it goes.
Click to expand...
Click to collapse
Do keep us updated if changing the display again fixes this issue. Would be interesting if someone had a fix for 3rd party displays but as of now it seems that's highly unlikely
]
iwantademo123 said:
Do keep us updated if changing the display again fixes this issue. Would be interesting if someone had a fix for 3rd party displays but as of now it seems that's highly unlikely
Click to expand...
Click to collapse
Sure.
Got the new OEM amoled screen today. It's brighter, more responsive and doesn't get stuck (black screen) with Android Pie. Problem solved. Price was 3 x higher than the cheap 3rd party screens, but definitely worth it (around 80 euros). All screen gestures work as well.
Bought it on Witrigs (https://www.witrigs.com/oem-lcd-screen-assembly-for-oneplus-5-midnight-black). it came really well packed and arrived fast (7-10 days to Finland). I highly recommend this screen and Witrigs to everyone
Also changed the screen from a friend and have this strange behavior, that the screen won't turn on .. only when I reboot or double press the power button so it launches the camera - the delay tho is about 7s, which is insane! you guys think this is the screen problem, or did I damage something and if yes, what? I repaired about 100 phones in total already ..
Link to the video: https://youtu.be/QmkBspymv8w
androidfreak11 said:
Also changed the screen from a friend and have this strange behavior, that the screen won't turn on .. only when I reboot or double press the power button so it launches the camera - the delay tho is about 7s, which is insane! you guys think this is the screen problem, or did I damage something and if yes, what? I repaired about 100 phones in total already ..
Link to the video: https://youtu.be/QmkBspymv8w
Click to expand...
Click to collapse
Sounds a lot like my OP5 with cheap 3rd party screens which would hardly work at all with Android Pie. If your friend's phone is running on Pie, try downgrading it to Oreo and see if that helps. My phone worked moderately with Oreo but not at all with Pie (wake and touch issues). Currently my OP5 is running Android Pie perfectly with the screen that I bought on Witrigs.
androidfreak11 said:
Also changed the screen from a friend and have this strange behavior, that the screen won't turn on .. only when I reboot or double press the power button so it launches the camera - the delay tho is about 7s, which is insane! you guys think this is the screen problem, or did I damage something and if yes, what? I repaired about 100 phones in total already ..
Link to the video:
Click to expand...
Click to collapse
Bizarre, have you tried the usual factory reset / rom reflash? If you confirm that its not a software related issue, then it probably is just the screen if its not an OEM part. Can't see what else would be the issue here unless there was other kind of damage before the repair maybe
Like @sbasil mentioned, it could just be due to the non-OEM screen being incompatible with Pie drivers.
Thank you for saving my phone
sbasil said:
Sounds a lot like my OP5 with cheap 3rd party screens which would hardly work at all with Android Pie. If your friend's phone is running on Pie, try downgrading it to Oreo and see if that helps. My phone worked moderately with Oreo but not at all with Pie (wake and touch issues). Currently my OP5 is running Android Pie perfectly with the screen that I bought on Witrigs.
Click to expand...
Click to collapse
Thank you for saving my phone
Mine not working with lineage base rom but is good with last pie 9.0.8. Did you try it?
Have this issue too
My OP5 has its original AMOLED screen. Running OS 9.0.8. This started happening after the most recent update. At least I never noticed it before.
I ran *#808# diagnostics, thinking maybe it's the proximity sensor, or the fingerprint scanner, but everything passed.
Also while locked, ambient display works. It's just getting the Home screen to appear after waking the phone that's become agonizing. And it does wake, the touch screen is responsive, it's just completely blind.
I mean consider this: I can take a screen shot, a screen shot, while the screen is in ambient display and the screen shot is of the home screen.
Pressing the power button or home button or notification slider repeatedly sometimes coaxes it to appear, but the only sure way to get the Home screen back is to restart the phone.
I had a black screen issue after changing the screen to an OEM AMOLED one, and after tearing my hair out for a couple of hours, I discovered that turning off " night mode" fixed the problem instantly
Same happened to me... cracked screen, purchased 'OEM screen' installed. Some apps work, some just black screen.
Driver issue? Running Pie 9x. Anyone had success with this by dropping back to Oreo? Would it do anything different to flash the Pie Firmware?
I repair/upgrade OnePlus 3/3T/5/5T phones to donate to families in need at the local family shelter. Some of them have lost or had to sell their phones just to get food and such. Now they need one to arrange job interviews and housing, things of that nature. So anyways, all that to say this.... I have replaced a LOT of displays, and all of them were the 'cheap' ebay variety. Each and every time I would replace the display, the phone would act just as described in this thread.
After long hours of reading, searching, and experimenting, I have found the ultimate and final solution to this problem. The answer to this issue is simple, but was not so simple to find. Whenever anyone does a screen replacement, and the screen is not the high-priced OEM variety, their phone will almost always have extreme difficulty in waking. The fix, and it has worked for me 100% of the time, is to flash a custom kernel. For the OP5/5T the kernel I use that always works is the Affinity kernel. Just flash and forget. The phone will always wake up after you flash that kernel.
However, don't forget, that what also happens with these lower priced replacement screens is that you can no longer double-tap to wake. I still haven't found a solution for that problem, but it always happens each time I replace a screen. The kernel won't help with that. But it does fix the 'won't wake up' problem.
Try it for yourself and see. You will be happy you did!
Oblias said:
... The fix, and it has worked for me 100% of the time, is to flash a custom kernel. For the OP5/5T the kernel I use that always works is the Affinity kernel. Just flash and forget. The phone will always wake up after you flash that kernel.
Click to expand...
Click to collapse
Please, can you point which FW you're using?
d2mac said:
Please, can you point which FW you're using?
Click to expand...
Click to collapse
I'm not clear about what you are asking. What exactly are you calling FW?? Some people mean radio and camera firmware. Some people mean the custom rom that gets flashed. What do you mean?

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