So i have this samsung galaxy s4 sgh i337m with lineage os 14.1 installed on it. Everything seems to work fine on it, but some times when I turn it off and turn it back on, it bypasses the lock screen and just unlocks it, after a while the phone just all of a sudden cuts to the lock screen and when I unlock it the screen goes black and the phone goes into a bootloop. After I pull the battery out and put it back to boot up. It seems to work but the whole thing would happen again.
I tried searching for a solution on google but nothing helpful shows up.
Sometimes the lockscreen wont even respond to my touches
Also whenever I reboot, there's the Kernel is not seandroid enforcing error on the top left.
Does anybody know what's going on here?
Related
SAMSUNG J710F SCREEN GOES BLANK BUT PHONE STILL WORKS
I’m having trouble with my screen going off. The phone will boot up and just vibrate,pc&odine being detected , my screen is blank and the only way I can get it to turn on is to take the battery out and back in. This especially happens when I drop it (in water)(I have a case on it & it’s never been dropped hard).
its because your display is dead bro only way to solve the issue is to changing display
I've come up with a problem that has perplexed me on my Galaxy J700T. I've looked everywhere for solutions, but none have worked.
The phone's screen will go dark after it boots, but will show the lock screen for a split second. The screen will sometimes flicker back to life for a moment, but then go back out. This can happen a few times. Sometimes it will go back to the same screen, but sometimes it will show the lock screen. Sometimes it will show the lock screen on a flicker, but then go back to whatever normal screen or app it was on before, when I hadn't unlocked it. This only happens when it was on that screen previously though It sort of Flashes the lock screen I suppose you could say. The phone's screen seems to be unresponsive when it's black.
I'll start with what I know:
It isn't solely a hardware issue - The screen does turn on when you first turn on the phone. It shows the boot process. You can boot it into Download mode and the screen will stay on. You can also boot it into Recovery mode and there will be no problems with the screen. The phone can boot normally and the phone will show the whole process. The problem is post boot so I find it hard to believe it's solely a hardware issue, otherwise I should have these problems in the other modes too.
The screen isn't always off - I've managed to actually catch my phone displaying messages at the bottom of the screen for a split second. One such being that it has connected to the internet. This will show for a split second, while the rest of the screen is still dark. The screen appears to otherwise be dark with no light, looking as if it is off.
I've looked into this black screen of death issue I've heard about. I'm not sure if this is it. I've never had the issue before with any other android device I've had. It doesn't seem like it when I look at descriptions of the problem.
I have put the phone through Factory Reset, which hasn't worked in stopping the problem. As soon as the welcome screen shows up to set up my phone, it will go black again. I cleared the cache. I Cleared all data and reset it. Rebooted it in different ways. I did root it.
Would anyone here happen to know what's going on or have any possible solutions?
Greetings.
I've recently been struggling with a problem with my Galaxy S6 and I've searched far and wide on the interwebs for a solution, with no avail.
You see, whenever I turn my phone on, or wake it up from the lock screen, the screen flickers one or two times, but doesn't always turn on.
They keys are active, touchscreen is active, but no image.
Sometimes I have to try and unlock my screen two or three times to get an image, sometimes it turns on after the first flicker.
An example of what I am experiencing is at https://www.youtube.com/watch?v=CyiDgpUSkaE
[edit] Another example is this: when switching the display brightness, the screen goes to crap and starts flickering like crazy, and at minimum brightness text goes unreadable and small (video) https://www.youtube.com/watch?v=HIMFaCy_KVY
I am not rooted, everything is stock FW, I had android 6 stock and recently upgraded to 7 stock OTA and the same issue persists.
I cannot access download mode or recovery because the screen won't turn on. Only time it turns on is when Android is booted. Even when booting, the blue led flashes because the device is booting but I have no image.
Please contribute with some ideas, I cannot wipe cache from recovery because I can't see anything even if I try to boot recovery (or download).
Thank you in advance!
Did you resolve this issue? If so, how? Mine started to do the same after a short fall. My initial thought was hardware but I can get into recovery and the screen functions just fine there.
Hey folks,
I don't know why, but yesterday I rebooted my s7 (on galaxy s8 port rom) and as it booted up again, the screen was just black. But the device is on, and the hardware keys are lighting up, even the root permission toasts are showing up, but I can't access to the phone since it's completely black. I tried to dirty flash the rom (sac v11) again, but this didn't helped, and I had to factory reset it. Can someone imagine why? It never happened to me before.
Also, 2 times now, that my s7 just showed 10 seconds black screen when I want to unlock it from lockscreen.
I really thank you for help.
Sounds like systemUI.apk is corrupting / being deleted
You using any theme engines / themes?
Hello everyone,
So I bought this one Samsung Galaxy S7 off the flea market for 3€ and when I plugged it in, it showed no signs of life. Then I plugged it in to my powerbank and suddenly, it showed the battery and even the charging animation. I left it charging for a while and then booted it up. It showed the Setup screen as usual, except it had an FRP lock on it. After bypassing that, I got told that I should reset it through settings because the installation is broken or something. After that, all it did was show the Samsung Galaxy S7 screen, then showed the Samsung boot animation screen, after that it showed the "Optimizing apps" and after that the "Installing apps" screen and after that it went black and restarted. From that point on all it did was show the Galaxy S7 screen followed by the Samsung boot animation which sometimes got cut off. After that, I wiped the cache partition hoping that would fix the problem but it did not. After that, I reflashed stock ROM with Odin and it didn't fix the issue either. After that, I flashed TWRP and tried factory resetting it through TWRP because out of nowhere the stock recovery stopped working. It showed the blue screen and then got stuck. In TWRP, after trying to factory reset, it gave me a bunch of errors. (view the image) After that, it got stuck in TWRP and froze. I tried force shutting it off but after that, the notification LED stayed on and the screen stayed black. I left it as it was for a while until the LED shut off. Now, it wont show any signs of life and wont boot in to recovery or download mode. After plugging in the micro USB again, it showed the Samsung Galaxy S7 screen but doesnt go past it. I tried booting it in to download mode but it doesnt want to. Now the screen is completely black and it shows no signs of life at all.