S7 edge screen went black but phone not dead - Samsung Galaxy S7 Edge Questions and Answers

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

Related

[Q] i9505: crazy screen, then nothing. Ideas?

I bought an i9505x from eBay, before realising that the "x" signified a shop display demo model, which has the SIM socket disabled.
I then bought a working, unlocked i9505 logic board from eBay to replace the dummy one.
I received both and the demo unit was in immaculate condition, booted and displayed "Galaxy S5, Live Demo" on splash screen startup. Everything worked apart from SIM of course. All sensors, camera, WiFi... everything apart from mobile networking.
I then swapped the demo board for the full logic board (and added the thin antenna cable that runs down the side of the screen as this wasn't present on the demo phone). The phone booted and received telephony and internet from both the giffgaff and three SIM cards I tried in it. Everything else worked.
I rooted/CWM'ed it and upgraded the ROM to 4.3 or 4.4 (can't remember which one) and it worked OK for maybe two days and I went to work. When I got back from work my girlfriend said it had been displaying green lines and dots on the screen so she turned it off and put it on charge.
I had a look and there were intermittent rolling pale green lines quickly moving up and down the screen on boot, with a few dots the same colour at seemingly random intervals. After leaving the battery out for 30 mins and putting on charge for 30 mins I managed to get it to boot into ROM and all seemed well until I tried to reboot and the lines/dots happened again, with the dots getting worse.
In a tiny font on the display it seemed to have a line of text, but as it was so small and scrolling about I couldn't read it. A couple of boots later and the screen is totally blank.
I've flashed a stock 4.3 ROM on it by guessing the download key combination, as there's no display for download mode. Odin responded correctly, showed a connected device and went through the ten minute flash process and rebooted the phone.
The phone now boots and makes the Samsung startup tune and once booted I get the volume adjust bleeps when I press volume up/down so I know the ROM has booted but the screen is totally dead. I even get the initial blue LED for a couple of seconds on boot.
I'm going to try swapping the demo board back in today to prove if the screen is dead or not.
If the screen is OK then could it be the GPU portion of the logic board?
If so, what are the chances of me swapping chips around? I imagine this would be an impossibly tricky job to do at home.
Thanks for reading.
How much have you laid out so far £££ ?

[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
...

Screen completely black

Hello,
I have a Moto X Play which is in great condition, I use a case and a screen protector.
Today I went for a walk and grabbed my phone which I hadn't touched in awhile. Once I got outside I realized it wouldn't turn on no matter what I did. Strange, maybe I left an app on.
I get home, plug it in, and it's at 75%. I play with it a bit and put it back in my pocket.
A few minutes later, I can't get the screen on again. I figure, I'll plug it in, reboot it to clear the glitch, it's all good.
It just won't light up.
I can locate it, it's updating its location, I can call it, it vibrates, it responds to buttons (but not the screen) Nothing seems to be wrong with it other than the screen.
I've tried everything to do a reboot, I've plugged in the short circuit usb dongle thing that usually puts an android device right into debug mode. I think it is rebooting but no screen action.
I have the latest OS for the device (whatever the not-so-new one is) and I am unrooted, locked, whatever I haven't messed with anything like that.
What can or should I do? I am just recently out of the 1 year warrantee.
Thank you,
-Phil
Hold down your power and volume down buttons until it turns back up(night take some time) into the bootloader screen and try to factory reset it.
Sent from my Moto X Play using XDA Labs
I've tried this, so far no luck. A bit of an update:
I brought it to a shop, they gave it a light twist and the screen came back fine and was in the setup wizard (as I had remotely reset it). They said the display port may have plugged back in, gave it back free of charge. By the time i got back home it was off again. I brought it back in to have them open it and reattach it for real. This didn't help. They tried attaching a brand new screen, same issue. The screen doesn't light up for reboots, not for factory reset, nothing. I am guessing this is an issue on the motherboard but the fact that a light twist "fixes" the issue suggests to me a light soldering could solve the issue. The repair shop gave it back to me as unfixable but I don't want to give up on it yet. I did have an opportunity to get a Nexus 5 in good shape for 140$ so I did that for now. This gives me time to mess with the Moto X Play. Any ideas?
pcaston2 said:
I've tried this, so far no luck. A bit of an update:
I brought it to a shop, they gave it a light twist and the screen came back fine and was in the setup wizard (as I had remotely reset it). They said the display port may have plugged back in, gave it back free of charge. By the time i got back home it was off again. I brought it back in to have them open it and reattach it for real. This didn't help. They tried attaching a brand new screen, same issue. The screen doesn't light up for reboots, not for factory reset, nothing. I am guessing this is an issue on the motherboard but the fact that a light twist "fixes" the issue suggests to me a light soldering could solve the issue. The repair shop gave it back to me as unfixable but I don't want to give up on it yet. I did have an opportunity to get a Nexus 5 in good shape for 140$ so I did that for now. This gives me time to mess with the Moto X Play. Any ideas?
Click to expand...
Click to collapse
Make a video on attempt to remove a non removable battery
Sent from my Moto X Play using XDA Labs
Ive been having the same issue with my x play, so try this out. turn it on, and have a look at the screen under a bright light, see if you can make out anyting. The backlight might not be coming on, but the screen will still 'turn on' so to speak, you can still make out whats on the display, touch input works etc. I have an issue with the display connector, with a bit of pressure it will work then not work, almost as if the backlight shorts out. it took me awhile to find out that that was the problem. as for a fix, if its the same problem I'm having, then you'd probably need a new mainboard. I've tried everything, new screen, new battery, swapping covers etc.. I have 2 x plays to tinker with and swap out parts.
I've tried using my new phone's flashlight to illuminate the screen with no success (though I will try again tonight, I'm not 100% sure it's on). Looks like mainboard run somewhere around 120$ before the repair cost, seems like it's not worth it. I'll post back after I double-check to see if the screen is there or not.
If it's shorting, I would think it could be fixed with some careful soldering? I do know that when I turn my phone on (remember it's been hard reset and has no SIM card) it vibrates every few minutes, I have no idea why. That's the only odd behavior it's been experiencing aside from the display not showing up.
I tried to look for any sign of the screen showing up by using string light and I didn't see anything that might suggest anything is showing up.

Suddenly flickering screen

Got my S7 Edge for just over a month now, and yesterday it started showing a black screen from time to time when navigating the phone. Note that I haven't dropped the phone, changed anything to it or made it wet. So after the black screen flickering, it only got worse, the black screen appears everytime for like half a second when i touch the screen, and when it gets noticably hot it simply stays black with rainbow lines flashing over the black screen.
Booting in safemode doesn't help. The flickering seems to be reduced just a little when I put it in the charger.. Not sure why.
I feel let down by Samsung (again), and I am bringing it to the service center tomorrow to have it fixed (and trade / sell it when I get it back) but I wanted to make 1 last cry for help on XDA, since maybe someone has a magical solution that will prevent me being without a smartphone for 2 weeks+.
Thanks a lot in advance.
Nothing we can do.
Factory reset phone is your last resort.

Touch stop working after turning off and on the screen.

I've been using the PH-1 for a year and a half and its great, but a couple days ago i would unlock the phone via fingerprint (as ussual), it would unlock but the touch wont work, so i factory reset the phone and still the same, remove the case and the screen was loose (almost complete), but the cable was well connected on both sides so i got the screen glued, but still the same.
Im using Android Pie (from day 1) with March update (updated like a week ago), in order to use the phone beyond what Google assistant can do i have to reboot the phone (using power and volume buttons) to get the touch to work again and dont let the screen go off. Sometimes after rebooting the touch works even if i turn the screen off and on, but i think its just luck.
You guys think it might be a software issue? or hardware issue? because i don't live in the US or CA, so i would have to wait a couple weeks for the screen to get here and i would'nt be able to return it in case its not a screen malfunction.
I really don't wanna change my phone, i love the PH-1.
EDIT: i just replaced the screen with a new one from fixez.com and the problem persists, i think april's update broke something. is there something i can do to check the software? Pls help.
I rooted my phone and almost the same thing happens. I turn off the screen and turn it back on and the touch is unresponsive. Howver, ONLY the apps left on screen are unresponsive. I can still pull down from status bar its weird.
Update 1: I saw u mention fingerprinting. I removed mine and somehow it seems to have stopped. I'll use it for about another day or 2.
Update2: Well it doesn't. If my screen times out with an app open. The app is unresponsive upon waking.

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