Screen blinking when powering the screen - Samsung Galaxy Tab S7 / S7 Plus Questions & Answer

My Tab S7 plus is behaving strangely in last few days. When my battery is over I think 25-30%, or when the tablet is connected to a charger, and when I press the power button (or double tap to wake) the screen blinks for a millisecond, it is also happening when you restart or power on the device, the screen blinks twice before the Samsung splash screen appears. But the strange thing is that it does not happen when the battery is below 25-30%, neither when powering or restarting the device or waking the device.
Is anyone else facing the similar problem? I tried to format the data, but the issue is still there. Thnx

Mine does that too, but I was only able to use for about an hour so ,I haven't had time to figure it out yet

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Galaxy Tab Frozen, Camera LED Keeps Blinking

Hi,
I got a galaxy tab 10.1, wifi only version there a few Weeks back. First thing I did was update to 3.2.
It had been going fine until this morning, I was browsing the internet on dolphin hd and the screen went black, the tab looks to have frozen. I've tried holding power button, and power + volume down button with no luck.
The weird thing is every time I hold the power button down the camera led starts flashing every second or 2 as if it was taking pictures. Other than that there's no response at all from it. The camera led also blinks when it it plugged in so I've plugged it into my ps3 to keep the led blinking until the tab runs out of battery in the hope that it'll start up fine again afterwards. Anyone else have any idea what to do?
Anybody seen this before? Or have an idea of how long this will take to run out of battery even?
It randomly came on there now. I had it plugged in for a while then the screen came up that it was charging, then I turned it on with the power button and the samsung logo etc all came up, then went black. it's off again now. no response at all from the tab now, no camera flashes or anything
Im having this same issue, have you found a solution to this yet? Worked fine last night left it charging all night now i just get the camera led flashing every 2 second when i press the power button

[Q] My Tablet Screen Is Blank.

Suddenly my tab is not responding , I tried to press ON/OFF button but the screen does not respond. The screen is blank and nothing comes out. I tried to plug the charger and no respond. I never or change anything since I brought the tab. I tried to google also but I cant find the solution. Is there any solution? My tab cannot turn on and the screen is blank and nothing to appear. It's like my tablet running out the battery but I plug the charger still no respond..
Edieneo said:
Suddenly my tab is not responding , I tried to press ON/OFF button but the screen does not respond. The screen is blank and nothing comes out. I tried to plug the charger and no respond. I never or change anything since I brought the tab. I tried to google also but I cant find the solution. Is there any solution? My tab cannot turn on and the screen is blank and nothing to appear. It's like my tablet running out the battery but I plug the charger still no respond..
Click to expand...
Click to collapse
Can you try holding Power button for a about 10 seconds or more, release it and try turning it on again normally?
xZero707 said:
Can you try holding Power button for a about 10 seconds or more, release it and try turning it on again normally?
Click to expand...
Click to collapse
Thank You.. It works.
Same Issue
I had the same problem with some little difference, which when I press the power button, I hear the lock / unlock sound, but the screen stays black, I connect it to the charger for couple minutes, try again and it works, tried factory reset but the problem still exists, anyone got a solution?
The same freaking issue
well my tablet doesn't turn on and screen stays black only a red flashing thing just works i still don't know why this is happening
Osoris said:
I had the same problem with some little difference, which when I press the power button, I hear the lock / unlock sound, but the screen stays black, I connect it to the charger for couple minutes, try again and it works, tried factory reset but the problem still exists, anyone got a solution?
Click to expand...
Click to collapse
Usually hapens when you tried to flashboot

[Q] Black screen, touch-responsive, vibrates but does not display anything...

I'm having a really strange issue with my gear fit:
1. Screen is black
2. Screen responds to touch(!) - I unpair the device and pair it again, when i press the left(top) part of the screen (confirmation button) it stops vibrating...
3. I am able to turn it off and on but the screen is still black (Samsung logo does not appear)
4. Bluetooth works fine
5. Kies3 also recognizes the device
6. It happened randomly a few times - the screen turned on and was responsive to touch but when i try to do anything it freezes and goes black again. I noticed that I can even change the wallpaper and clock through the Gear Fit Manager. I thought that it could be just the screen issue but I've never dropped it and as I mentioned - it responds to touch.
This problem appeared out of nowhere - I've left the watch (turned off) for a month on my desk, the battery was at 40% today, tried to turn it on and...
Due to the screen failure I cannot put it in the download/recovery mode. Is there a way to do it with screen off?
I know it's stating the obvious but have you done a full reset on it? (Hold the button down, a good 8 seconds, until it forces it to reboot)
admisi said:
I know it's stating the obvious but have you done a full reset on it? (Hold the button down, a good 8 seconds, until it forces it to reboot)
Click to expand...
Click to collapse
Just my 2 cents,I had to hold it down more like 20 seconds, way more than seems logical.
From my Galaxy Note 2
Has there been an answer to this because I've been having the same issue with mine for about 4 months. As stated before, it turns on but screen stays blank but I know it's working because it vibrates after I turn it on. Mine is a international one.
possibly a screen defekt? was the same thing with my when i rip it apart

K3 note screen replacement issues

Hello everyone
I replaced my lcd and digitizer because the touch did not working on the original screen of K3 note
I have the following problems
The screen works and touch also when i power up the device but when i lock the screen from power button the screen 8/10 times never turn on and i can see only the backlight, if i press multiple times the power button it will turn on finally but i never know when it will. If i remove the battery and turn it on again , everything works fine until i lock the phone. The phone works when it is locked by the way. Also if i press the power button to unlock the touch works but i can see only the back light no image.
I tried to lock and unlock the screen with gestures , same problem.
The weird think is that sometimes it turns on.
One think i forgot to mention is that sometimes when the screen turn on after pressing the power button i see black horizontal lines for some seconts(flickering) and then they dissapear
I tried a lot of different roms, i disconnected and connected again, never sleep mode with safe locker , i disabled the proximity sensor with x posed , i removed the sd card, nothing helped.
Can anyone suggest me something else to do?
Changing screen settings maybe? and how
Thanks a lot and sorry for my engish it is not my native language.

Galaxy Tab S3 (SM-T820) Black Screen (even after factory reset)

Good evening folks,
I am in need of help. I've been having issues with my tab S3 (SM-T820) for the last month or so. I notice that when i let the device charging over night, after i disconnect it, the screen goes black. I know the device is on, since the button lights are active. I've performed forced reboots (holding power + volume down buttons), and screen remains black, but device is on. I've performed hard resets via the odin software and the firmware, and yet the screen remains black (again, device on, button lights on). If i connect the device to a charger, when the screen is black, the screen turns starts displaying a black "speckled" display (black screen with color dots everywhere). When i see that, i start pressing the power button, turning the screen on and off continuously, until i finally get the screen to appear. Problem is that once i turn off the screen (not the device), again the screen will go to black and not appear anymore, until i keep messing with the power button again. I'm finally at lost since i sent the device to squaretrade for warranty support, and they keep sending it back as repaired (all they did was a factory reset, which is what i have done via the Odin software). Any idea on what to try next? I have though about disassembling the device and verifying the display cable is correct, but just seems irrelevant that it could be a hardware issue since eventually the screen does come on again (after trying countless of times), plus, i don't know how to disassemble this thing. Any ideas or recommendations?
Thank you in advance

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