[Q] Black screen on samsung galaxy tab 4 problem - Galaxy Tab 4 Q&A, Help & Troubleshooting

I appreciate any responses anyone has to help
Ok so i have my sisters samsung galaxy tab4 ( sm-t230nu ) which she brought to me today.
Her screen went black, lights up and all but it stays black in color. Up down volume buttons work and u can hear them working, power button works, turns screen on and off, TOUCH SCREEN WORKS, on certain areas u can hear the noise it makes when u tap on the screen and apps. I pressed the power button alone for it to restart, it restarts but does not show samsung tab logo or anything at all just lit up black screen. I even went on YouTube to memorize the hard reset sequence of buttons u have to press in order to complete the reset and i did manage to hard reset. But screen is still booting up on a lit black screen. I removed the back cover, unplugged the battery and tried booting it up and still nothing. BTW its full factory, no root roms or anything of the sort. I need help on what could be the problem. Only thing i believe might have caused this was a recent update on the system. My sister said a few days ago it gave her a notification about it and she clicked on yes. I dont know what version of android it had nor which it had updated to. Please help. Tablet is not that old. Thanks. If anything email me directly at [email protected] thanks

Norbertoortiz said:
I appreciate any responses anyone has to help
Ok so i have my sisters samsung galaxy tab4 ( sm-t230nu ) which she brought to me today.
Her screen went black, lights up and all but it stays black in color. Up down volume buttons work and u can hear them working, power button works, turns screen on and off, TOUCH SCREEN WORKS, on certain areas u can hear the noise it makes when u tap on the screen and apps. I pressed the power button alone for it to restart, it restarts but does not show samsung tab logo or anything at all just lit up black screen. I even went on YouTube to memorize the hard reset sequence of buttons u have to press in order to complete the reset and i did manage to hard reset. But screen is still booting up on a lit black screen. I removed the back cover, unplugged the battery and tried booting it up and still nothing. BTW its full factory, no root roms or anything of the sort. I need help on what could be the problem. Only thing i believe might have caused this was a recent update on the system. My sister said a few days ago it gave her a notification about it and she clicked on yes. I dont know what version of android it had nor which it had updated to. Please help. Tablet is not that old. Thanks. If anything email me directly at [email protected] thanks
Click to expand...
Click to collapse
Have you tried getting into recovery or download mode? If those show, it's likely fixable. If you can get to recovery mode, it usually shows what firmware is on it. If that works, trying using ODIN to reinstall that firmware in download mode. If not, it sounds like a hardware problem. If it's not that old, it may be under manufacturer warranty still. Good luck.

Try to reseat the LCD cable, if it doesn't work, you may need to change the LCD. Search Ebay for LCD only or full LCD assembly if you're not comfortable to take out the touchscreen.
https://www.youtube.com/watch?v=aHdh9AITqII
Full LCD assembly
http://www.ebay.com/itm/OEM-SAMSUNG...383?pt=LH_DefaultDomain_0&hash=item4199c6da9f
LCD only:
http://www.ebay.com/itm/Replacement...384?pt=LH_DefaultDomain_0&hash=item2a5057fe10

Norbertoortiz said:
I appreciate any responses anyone has to help
Ok so i have my sisters samsung galaxy tab4 ( sm-t230nu ) which she brought to me today.
Her screen went black, lights up and all but it stays black in color. Up down volume buttons work and u can hear them working, power button works, turns screen on and off, TOUCH SCREEN WORKS, on certain areas u can hear the noise it makes when u tap on the screen and apps. I pressed the power button alone for it to restart, it restarts but does not show samsung tab logo or anything at all just lit up black screen. I even went on YouTube to memorize the hard reset sequence of buttons u have to press in order to complete the reset and i did manage to hard reset. But screen is still booting up on a lit black screen. I removed the back cover, unplugged the battery and tried booting it up and still nothing. BTW its full factory, no root roms or anything of the sort. I need help on what could be the problem. Only thing i believe might have caused this was a recent update on the system. My sister said a few days ago it gave her a notification about it and she clicked on yes. I dont know what version of android it had nor which it had updated to. Please help. Tablet is not that old. Thanks. If anything email me directly at [email protected] thanks
Click to expand...
Click to collapse
If tab has warranty claim warranty. I think this is a hardware issue.

Related

Incorrect response from touch screen

Hi there!
I have absolutely ridiculous problem with my THD. All of a sudden screen started to act like it is half disabled. In simple words, if a touch some icon on top bar, let's say Start button, click appears on clock. Basically it is looks like touch area displaced by half an inch down. I've tried to calibrate screeen and it seems like it worked for a few minutes and then turns back. I had to hard reset the whole thing and it did not help either. All images, icons, screen items appeared correctly on screen. Bottom menu bar responses correctly though.
I did not drop the phone if it will give a clue.
Anyone knows what the hell is that and how to fix that problem? Please help.
Thank you.
Anyone? Please...
sounds like you need to re align your touch screen. you need to go to Start>Settings>System>Screen then align screen
If you cant get to this then a Hard Reset might be the only way to go
Nothing is working. Now I cannot even get past screen alignment. Looks like it can be a hardware problem.
u may have to hard reset
then after that if it still wont work then u may need a replacement
Yeah. It sound like it is. Jast called HTC support, did hard reset again and after few minutes it is back to that misalignment. Damn...
Connected to ActiveSync and have you got 'My Mobiler' running? I noticed some strange screen behaviour with that on the Device and the host PC.
try pressing both volume keys and tapping the screen at the same time(volup + voldown + tap the screen) --- it will get you to align screen mode if that doesnt work then maybe you have some problems while flashing a rom or something!
TPEHEP said:
Yeah. It sound like it is. Jast called HTC support, did hard reset again and after few minutes it is back to that misalignment. Damn...
Click to expand...
Click to collapse
I am having the same problem, it started suddenly somedays ago. I realized that when I hard rest it works fine for some time and then slowly left side of the screen stops responding, after a while only right side react to touch so you cannot access START menu nor anything else from the whole screen, just the left corners.Any solution?

[Q] Please help me! stuck at lock screen after digitizer replacement

so i just replaced my samsung galaxy s4’s digitizer, the phone truns on, the screen works but will not let me unlock the phone, its clearly working thp since theres a clock displaying time thats accurate, showing me battery level and the date, but i cannot do anything from this point on, no unlock bar or anything, ive tried a hard and soft reset as well as sbf’ing it back to stock with the same issue arising, im about to buy a new motherboard for it soon unless someone knows how to fix these issues. Thanks for any help in advance, Ty w
any ideas?
Does your touchscreen even work? If not, then you probably got a faulty one.
yep
Lennyz1988 said:
Does your touchscreen even work? If not, then you probably got a faulty one.
Click to expand...
Click to collapse
yes, boot logo plays just fine, cycles through the att logo screen, then goes to the lock display, heres a pic of the lock screen that displays atm, it tells me the date, time, battery level, and notification bar, and thats it, theres no response from touch input, menu and back button work just fine, as well as the power button
sikboarder said:
yes, boot logo plays just fine, cycles through the att logo screen, then goes to the lock display, heres a pic of the lock screen that displays atm, it tells me the date, time, battery level, and notification bar, and thats it, theres no response from touch input, menu and back button work just fine, as well as the power button
Click to expand...
Click to collapse
Ohh, but that's not the lockscreen.
That's the S-view cover screen.
@DeepankarS knows more about how to solve it.
sikboarder said:
yes, boot logo plays just fine, cycles through the att logo screen, then goes to the lock display, heres a pic of the lock screen that displays atm, it tells me the date, time, battery level, and notification bar, and thats it, theres no response from touch input, menu and back button work just fine, as well as the power button
Click to expand...
Click to collapse
@Lennyz1988 thank you
@sikboarder Try removing the L1 screw and starting the phone again. Or keep a magnet near you, when this appears, touch the magnet (not a strong one) neat the volume keys and remove it. When this disappears, force stop sec.android.sviewcover from the application manager.
Still if it does not help, try an AOSP rom. Touchwiz has this stupid bug.
Lennyz1988 said:
Ohh, but that's not the lockscreen.
That's the S-view cover screen.
@DeepankarS knows more about how to solve it.
Click to expand...
Click to collapse
wouldnt i have reset that after i did an sbf?
also sent DeepankrS a pm for help

Blank screen, notification and menu lights on.

Hello all, I just traded my nexus 6 with a note 4 and it worked well for about 3-4days and now i'm stuck. I received a call, went to answer and the screen was blank. Tried switching off the phone to no avail. Pulled the battery and tried to power it back up again all I get now are different shades of blue led notification then the menu and back buttons light up and that's it, screen blank.
I did try the many ways shown in google to remedy this but nothing works, pulled battery, held power button for 1-2mins and then leave the phone alone for a while and then come back to power it up. Nothing works. Did the guy set me up or did it just happen on my watch. I'm pretty sure he would say that he gave me a fully functioning phone, which he indeed did. Should I just get a new board or am I screwed?
Nothing......cool.

Unable to see home screen

I have restarted my note 3 and now I cant see my homes screen. It seems to take a long time to get through the second Samsung screen but eventually I can see my notification bar which I can still pull down and it I hit the home button twice it turns on S Voice so I know the screen is working. The screen brightness is up on full and when the screen is on its functioning fine. I can also turn it off without any problems
I just cant see my home page and my security pattern screen.
I've tried removing the battery hold in power on button for a few minutes then replacing the battery but that seems to make no difference.
Any ideas whats happened
thanks
Factory reset .
note 3 problem
hello my friend . this is the same problem that happened to me today in morning if some one help you pleas tell me what i have to do .
thanks

S7 Edge Flickering and Not Turning On

Basically my S7 Edge has been having an issue, every time after I use the lock or power button I cant turn it back on after. The blue Light LED is visible, occasionally (I'm assuming just emails or texts) and if I use the power button while the phone is on the bottom half of the screen just flickers for a second a white flash. If I try to force reboot it, it occasionally works but other times it 'dims out' the screen and I cant really see the Samsung logo followed by my career logo (OPTUS). It randomly works when I leave it for a while or I try to spam force restart. It doesn't seem like a hardware Issue because it happened randomly maybe a month or so after I got a decent crack on it.
I have wipe cache in the partition haven't reset it yet though.
I made a video because I know I'm describing it pretty bad hopefully you'll watch it.. (watch till end for the white flashes)
please enter the dot because I cant post links
youtu (dot) be/2Ay3QD64SFg

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