So somebody gave me a tablet that they had "dropped in the bathtub" .. Figured I'd take a gamble at fixing it as when powered on , no display or backlight but all the sounds and digitizer seemed to work ok.
Got the lcd+digitizer on Ebay, powered on ... back light works but no display .... figured i'd go deeper, bought a used mobo .. I did this as a gamble knowing it'd be easier to toss the thing and try and sell the screen locally but mobo+screen should be a sure deal to get it going again.
When I power on into recovery mode/flash mode the resolution is still interlaced which leads me to believe it could be hardware ...
Just charging it now to give it a flash with Kies but wondering if anyone has experienced this or can give guidance on what to troubleshoot. Google has yielded nothing.
Touch works, but my touches don't line up to what's on the screen.
Related
Ok so I replaced the LCD after watching a few videos no issues everything came off and went back on like it was supposed to but now the phone will not turn on and the battery is fully charged i get a quick blink of the light when I plug the phone in and thats it?
Try making sure all cables are in. Could've cone loose if it wasn't properly replaced.
Sent from Galaxy Note with CM9
if u are doing it right it will work. I've changed my droid x LCD watching those youtube videos
I've done this repair a few times and it normally depends on the LCD quality, actually had quite a few "tested" parts which were really faulty. If the connection is good and no rips, likely the part. I'm still looking for a good supplier for screens and parts. I don't trust ebay or amazon anymore... Tried a few other places too, like RU (terrible service).. Thanks!
Make sure the ribben cable is tightly secured. Mine wasn't turning on too when I took it apart to fix my red camera button.
Hey guys
I have a half working OneX lying here and need some advice. The lcd doesnt work anymore and stays black all time. The rest of the phone still seems to work. I looked on ebay.com.au ( I am in Australia right now) for some lcds but git kinda confused which I have to buy now.
Is this the right one or do I need sth. else?
http://m.ebay.com.au/itm/370629968578?nav=SEARCH
SOmeone any idea? Do I have to open my HOX to see which Screen I need or what?
I have a similar problem as you with my HOX, though sometimes when I twist my phone from the edges a but the screen comes to life for a while. I've read that this could be a problem with the ribbon being pressed out of place due to heating of the battery. I think its a better option to get it checked by a hardware guy than buying something that you might not need.
Sent from my MI 2SC using Tapatalk
Yes, like it turned itself off but it did not go off as I was still getting audible email notifications. Tried everything speaking with Google support and then even Asus support who told me to go to their website and fill in an RMA form. This unit is 13 months old-out of warranty. There is nothing on the form relevant to the nexus to fill in so you cannot continue with it. So I am stuck right now and do not know what to do if anything. Any help would be appreciated.
claypoole said:
Yes, like it turned itself off but it did not go off as I was still getting audible email notifications. Tried everything speaking with Google support and then even Asus support who told me to go to their website and fill in an RMA form. This unit is 13 months old-out of warranty. There is nothing on the form relevant to the nexus to fill in so you cannot continue with it. So I am stuck right now and do not know what to do if anything. Any help would be appreciated.
Click to expand...
Click to collapse
Normally, 3 things can go wrong:
1. The cable is not connected properly. This could be caused by any impact. You take off the back cover and reseat it. It's the amber cable that runs the length of the battery. Be sure to check both ends. The one on the motherboard's end is in plain sight. The other end is hidden beneath the daughter board at the bottom of the tab, so you need to remove it to inspect the connection.
2. The backlight which illuminates the display went out. You can check this by turning the tab on and taking the tab to a dark room and shine a flashlight on the screen. If you can see the icons or the boot page, the back light is bad. The bad news is that you'd have to remove the lcd/touchscreen unit to replace the backlight. 10 times out of 10, when you do this on an original tab, you will break the touchscreen. Since it's glued to the lcd with LOCA (liquid optically clear adhesive), you will have to separate them, fix the backlight, buy a new touchscreen, then reassemble the whole thing. Most people would find it simpler to just buy a new lcd/touchscreen combo. If you're game though, I can give you an lcd back with a working backlight strip.
3. The video circuit on the motherboard went belly up. To test this, you need a micro usb to HDMI adapter like the one here , and a newer lcd TV. If nothing shows on your TV, the GPU is probably dead, in which case the only practical solution is to replace the motherboard since it's impossible to replace the GPU at home.
Good luck.
graphdarnell said:
Normally, 3 things can go wrong:
1. The cable is not connected properly. This could be caused by any impact. You take off the back cover and reseat it. It's the amber cable that runs the length of the battery. Be sure to check both ends. The one on the motherboard's end is in plain sight. The other end is hidden beneath the daughter board at the bottom of the tab, so you need to remove it to inspect the connection.
2. The backlight which illuminates the display went out. You can check this by turning the tab on and taking the tab to a dark room and shine a flashlight on the screen. If you can see the icons or the boot page, the back light is bad. The bad news is that you'd have to remove the lcd/touchscreen unit to replace the backlight. 10 times out of 10, when you do this on an original tab, you will break the touchscreen. Since it's glued to the lcd with LOCA (liquid optically clear adhesive), you will have to separate them, fix the backlight, buy a new touchscreen, then reassemble the whole thing. Most people would find it simpler to just buy a new lcd/touchscreen combo. If you're game though, I can give you an lcd back with a working backlight strip.
3. The video circuit on the motherboard went belly up. To test this, you need a micro usb to HDMI adapter like the one here , and a newer lcd TV. If nothing shows on your TV, the GPU is probably dead, in which case the only practical solution is to replace the motherboard since it's impossible to replace the GPU at home.
Good luck.
Click to expand...
Click to collapse
Did anyone else read this response and want to hit the edit button, and then type in huge letters "Time to buy a new Nexus!"
Thank you for your detailed reply. I checked the cable from the MB at both ends. Seems OK on the connections. I am unable to turn on the tab to check the backlight. That's about as far as I can go with it at this point. I am thinking that this tab is toast and to make matters worse, the abominably bad Asus customer service. I am considering replacing this with a Samsung and be done with it.
claypoole said:
Thank you for your detailed reply. I checked the cable from the MB at both ends. Seems OK on the connections. I am unable to turn on the tab to check the backlight. That's about as far as I can go with it at this point. I am thinking that this tab is toast and to make matters worse, the abominably bad Asus customer service. I am considering replacing this with a Samsung and be done with it.
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Click to collapse
Hey, don't lose hope! Samsung is not any better specs or quality-wise (especially the display). If you're gonna butcher the thing anyway, might as well find out. I was gonna suggest to lend you a used lcd for you to test, but I realize people for some reason are extremely wary of gratuitous offers so I won't. But if you value it, try to get a screen with a good lcd but broken digitizer on Ebay. They wouldn't cost more than 15 bucks. Once you can determine it's not the motherboard, we can go from there. I can guide you on the replacement part if you want. I'm just a hobbyist, but I have messed around with this thing enough to tell.
Graph, you are kind to offer. I also have noticed that the glass has a few cracks in it as well. At this point, I can't turn it on. It seems like when I punch the on button in there is extremely little movement if at all. So I don't know if it is still on which I don't this it is or it shut itself off. When it was black screen and on, I was getting my email notifications audibly but since yesterday-none. I am not looking to spend big bucks on these things as essentially all I do mostly is use for reading. I do want to stick with android if I replace this. I know samsung does not have as good resolution but seems to get good reviews from users.
I have turned my tablet this morning and don't know what happened: on the start up background has turned kind reddish and Samsung log blue. I thought first that somehow I changed settings and inverted display. Anyway it looks like all whites have been replaced by blue and screen looks slightly distorted. Factory reset didn't help and of course tablet is no longer under the warranty
I would be very grateful for any ideas how to fix that.
The problem might be a lose connection with the display connector cable. I also had a problem with this cable a view months after I bought the tablet, as my screen started flickering and went completely black shortly after. I read from other people having also connection problems with that cable.
As you are no longer on warranty, I suggest you open the tablet by yourself and reconnect the cable.
You can see the cable here in this video at 3:02, just unplug and reinsert it into the socket.
Watch the video for a tutorial how to open the tablet.
https://www.youtube.com/watch?v=jZvEFqYd1Vk
That's of course just a guess, the problem may also have other root causes.
Same issue
Hi! I have the same issue with my 10.1 Note 2014. I went to a service center with it and after running some diagnostics, the verdict of the service person was that the ROM on one of the chips on the motherboard has become corrupted and needs to be re-flashed. And the price for doing this was ~220 euro. As this is a bit too steep for this operation, I will be looking for other service points that may sort it out, while checking prices for a new tablet. If they manage to sort it out, I'll add an update on this post with how they did it.
If anyone else has any other ideas about sorting out this issue, I'd love to hear them
7932 said:
I have turned my tablet this morning and don't know what happened: on the start up background has turned kind reddish and Samsung log blue. I thought first that somehow I changed settings and inverted display. Anyway it looks like all whites have been replaced by blue and screen looks slightly distorted. Factory reset didn't help and of course tablet is no longer under the warranty
I would be very grateful for any ideas how to fix that.
Click to expand...
Click to collapse
After I updated my Galaxy Tab S4 to Android 10 with One UI 2, the screen became like the picture attached. Now half of the screen is occupied by black and white stripes.
I contacted Samsung and tried all the possible troubleshooting solutions but in vain, the problem still existed.
I also started a thread on Samsung community about this issue, and I got a lot of replies about the same screen problem that happened with many people.
https://eu.community.samsung.com/t5...en-issue-after-android-10-update/td-p/1837825
Still no response from Samsung about that.
Please can you help me with this issue?
I got 100% same problem
I try downgrade and same
But mine its from damage during shipping, the glass covering the amoled is cracked but I hope the screen its not affected.
Now I'm waiting the HDMI to usb type c cable to arrive to see if its screen or motherboard problem
If I lock/unlock(power button) fast and many times the lines dissapear and works normall a while
Do you fix it or you find what is wrong?
Today the HDMI to usb type c cabe arrived from china
I connect the tablet to TV and seems that lines are only on amoled, unfortunately the screen seem to be faulty
Hi at all the community, and Merry Christmas, oh oh oh
I made this post because i want to clear the situation about this very diffused issue that occur on samsung tab s4. I'm going to buy a tablet in the same screen condition in the attached picture, but before i want to know if the problem is related to the screen only or it's an hardware issue that affect the motherboard.
Please if anyone has fix this, please share a solution because in internet there are tons of user that ask for that and i haven't found if it's a screen or motherboard problem.
Thanks and wish you a merry christmas to all the community
majdantonio said:
After I updated my Galaxy Tab S4 to Android 10 with One UI 2, the screen became like the picture attached. Now half of the screen is occupied by black and white stripes.
I contacted Samsung and tried all the possible troubleshooting solutions but in vain, the problem still existed.
I also started a thread on Samsung community about this issue, and I got a lot of replies about the same screen problem that happened with many people.
https://eu.community.samsung.com/t5...en-issue-after-android-10-update/td-p/1837825
Still no response from Samsung about that.
Please can you help me with this issue?
Click to expand...
Click to collapse
unfortunately this is not screen issue, this is RAM or CPU issue, i did a Reballing and RAM replacement on Customer's TAB S4 and the issue was solved.
MULTITECH on Instagram: "Galaxy Tab S4 with image issue, done. CPU reball and RAM replacement. #microsoldering #microsoldagembrasil #microsoldadura #microsoldagem"
24 likes, 2 comments - MULTITECH (@multitechrepair) on Instagram: "Galaxy Tab S4 with image issue, done. CPU reball and RAM replacement. #microsoldering #microsold..."
www.instagram.com
Thanks biohazard for your reply, i'm going to examinate the motherboard I really trust in yor words and is what i believe..
Anyway someone else can confirm after changing the screen this kinda of issue persist?
I want to clear the situation share your experience!
I can confirm what biohazard16 said, it's not oled screen problem or display coonection problem but hardware problem on the motherboard. I've tried to connect my tablet using MHL cable to a TV and the picture on the TV is perfect without any glitch, clear of any half screen issue. I've tried to install another original screen 100% working and i've still had the same half screen issue, it's not a screen problem.
I search a lot in internet for complete schematics or boardview for this Tab S4 but i've only found a service manual that doesn't help. If anyone have boardview or any other Oled pinout please post.
I think that Samsung after made a good tablet, wich a large amount of these have the same screen issue, must be release the complete schematics because people with good skills can repair a Project/Assembly mistake made by Samsung, but till now from Samsung 0 news.
At this point i want go through the problem and i've attached a picture of what IC need to be reball/resolder.
biohazrd16 or anyone can confirm i'am right?
I start thinking that reapir this kind of issue is like the 3rd secret of Fatima ;-)