Hi,
After powering on my Xoom today, I saw there is a horizontal dotted black line across the screen (Vertical if i put the screen on portrait mode)
Going into Fastboot mode, the dotted line becomes white color. Anyone experience this before and any solution to fix it?
Screen Photo http://twitpic.com/5fkdiw/full
Thanks in Advanced XDAer!
I can't seem to pull up the photo, but it sounds like a hardware issue from the way you're describing it. Your only choice is to send it to MOTO for repair. Since there's no way to prove it wan't from abuse you'll likely have to pay for the repair. :-(
From the picture it seems to be hardware related.
Use the following two tools to see if its not a "stuck pixel" problem.
Display Checker
Display Checker will help you identify dead pixels
Pixel Fixer
If an LCD display is subjected to physical shock, this could cause one or more TAB connections to fail inside the display. This failure is often caused by horizontally flexing the chassis (e.g., while wall mounting or transporting a display face up/down) or simple failure of the adhesive holding the TAB against the glass. TAB faults require replacement of the LCD display module itself. If these connections were to fail, the effect would be that an entire row or column of pixels would fail to activate. This causes a horizontal or vertical black line to appear on the display while the rest of the display would appear normal. The horizontal failure runs from edge to edge; the vertical failure runs from top to bottom.
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Quote from wikipedia.
That looks like your problem.
Related
I've come across an issue with the touchscreen. In apps where you draw a line across the screen by dragging your finger - e.g., Air Control HD & Sketchbook Mobile - I'm finding that I can only draw short lines. After dragging my finger a bit (it varies from a few inches to something very short), the screen no longer registers the touch. It doesn't seem to be dependent upon any particular part of the screen. This is on stock US JB. Any thoughts?
Have you tried a cold boot?
Assuming software can't fix it take it back as it has a defective touch screen. Mine doesn't behave like that in air control hd.
sbdags said:
Have you tried a cold boot?
Assuming software can't fix it take it back as it has a defective touch screen. Mine doesn't behave like that in air control hd.
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I can readily draw lines in the Notemaster app so it would seem that this is not a h/w problem. I have cold booted several times, too.
OK, this is a h/w problem and I have to RMA this baby.
I can go into Developer Options and enable Debugging Mode. If I enable Pointer Location and then draw my finger back and forth across the screen in landscape mode I can see an area about half an inch wide in the middle of the screen where the drawn line is broken. This dead area extends from the top of the screen to the bottom. If I enable Show Touches, I can see the visual feedback jump over this dead area, not glide through it. I have done a factory reset but no change occurred.
Hey there,
so far, i am pretty happy with my S7. But there is one thing that is kind of worrying to me. On the lower end of the screen there seems to be a much less touch-sensitive area forming a horizontal stripe going form almost full left to full right. Its less noticable when i remove the screen protector (0.3mm 9h glas) but still there, and with the screen protector applied i consistently fail to hit the lowest row of keys on any keyboard app.
Question is, can this be a software-related issue and be fixed with an update, or is this a case of faulty hardware and should therefore be RMAed? Or is there something else i can do?
Things i tried: Factory reset, TSP-update via code *#2663# (which said "pass" but didnt change anything like version numbers), cleaning the screen, removing protector (which mitigated the problem, but its still there)
Its me again, with updates.
I have returned my S7 and got a new one. Funny thing is - its a completely different unit (different IMEI and S/N, seal wasnt broken upon arrival) and yet it shows exactly the same problems.
Can some of you please test the following: Using the stock Samsung keyboard, try to tap the spacebar right on the lower border. If i tap below the spacebar, it gets pressed. if i tap above the lower border of the spacebar, it gets pressed as well. But tapping right on the border will allow me to touch the screen surface without any signal registered. The keyboard is just for the height reference - from almost far left to almost far right this height is almost dead for finger touches - using a pen diminishes the problem.
Can some of you please try the same? Please check the height upon which your touches in that height get registered. Since i have gotten two phones with the same problems i suspect its a software problem and thus should apply to more people than just me. I have the SM-G930F Exynos.
TheBandicoot said:
Its me again, with updates.
I have returned my S7 and got a new one. Funny thing is - its a completely different unit (different IMEI and S/N, seal wasnt broken upon arrival) and yet it shows exactly the same problems.
Can some of you please test the following: Using the stock Samsung keyboard, try to tap the spacebar right on the lower border. If i tap below the spacebar, it gets pressed. if i tap above the lower border of the spacebar, it gets pressed as well. But tapping right on the border will allow me to touch the screen surface without any signal registered. The keyboard is just for the height reference - from almost far left to almost far right this height is almost dead for finger touches - using a pen diminishes the problem.
Can some of you please try the same? Please check the height upon which your touches in that height get registered. Since i have gotten two phones with the same problems i suspect its a software problem and thus should apply to more people than just me. I have the SM-G930F Exynos.
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Click to collapse
I have the same problem in the video posted at the bottom of this thread
http://forum.xda-developers.com/galaxy-s7/help/s7-flat-unresponsive-touchscreen-t3343175
I have also noticed this problem. It all started out when I noticed I was making a lot more errors when texting. I'm coming from an S5 so the screen size wasn't the issue.
I then started tapping towards the bottom...space bar... period etc and sometimes it would miss. I could tap for like 20 times, and maybe there are 5 consecutive times that it didn't register.
May forum staff merge the 2 threads please?
It would also be great to have an official news in homepage with an official statement from Samsung about this issue
Inviato dal mio SM-G920F utilizzando Tapatalk
FINALLY Found a solution !!!
For those of you having this problem that sometimes the S7 or the S7 edge doesnot register touch somewhere near the bottom right area of the screen:
I (and i suppose most of you) had tried all the solutions like wiping cache, factory reset, soft reset, *#2663# and what not. None of them worked.
Now, the solution is, when this problem occurs, turn off the screen and press the Phone hard on the right hand side of the phone. Like the right half of the phone has got paralised, press it hard, squeeze it. Like, place it on the table or a soft surface and press with the thumb. 3 or 4 presses hard enough on the right hand side from the top to the bottom. And Voila, the problem is gone.... Enjoy your phone. The problem does come back randomly and do the same thing. It works instantly.....
Hi, I'm having some issues with my opo. So, a few weeks ago, my phone suddenly had ghost touch and unresponsive screen. I fix that by flashing boeffla(is my spelling right? ) kernel and adding some lines in build.prop to fix dithering, and both fix come from this forum. Well, it does fix the ghost touch problem.
But, the lower bottom part of the screen is still not working, including the capacitive key. When I dug this forum, I found that 1 of the possible fix is to insulate/isolate the digitizer with the chassis. Sadly, I don't have the tools(namely hair dryer to separate the screen with body) and have no money to buy it. My questions are :
1. Could I disassemble the screen without hairdryer? And if I could, is it risky? I don't have the money to buy replacement screen either if I mess up the process
2. As a workaround, I try to modify screen size, dpi, and overscan through terminal emulator. To a certain extent it works. But, as the dead zone is the bottom part of the screen, is there any command or way to resize the screen so that the resized screen is from topmost until the part where the screen still work? (resized said screen result is placed in the middle of the screen, so I can only resize it to a small size, it's a bit impractical)
3. If I overscan the bottom part of the screen until past the unresponsive area, some part of some apps are "drowned"(for the lack of better term) meaning that some buttons are not visible (example: opera browser). Any solution about this?
I'm sorry if my questions are noob's questions(and a lengthy one at that, too). Please help me and thank you so much for your help
mr5321 said:
Hi, I'm having some issues with my opo. So, a few weeks ago, my phone suddenly had ghost touch and unresponsive screen. I fix that by flashing boeffla(is my spelling right? ) kernel and adding some lines in build.prop to fix dithering, and both fix come from this forum. Well, it does fix the ghost touch problem.
But, the lower bottom part of the screen is still not working, including the capacitive key. When I dug this forum, I found that 1 of the possible fix is to insulate/isolate the digitizer with the chassis. Sadly, I don't have the tools(namely hair dryer to separate the screen with body) and have no money to buy it. My questions are :
1. Could I disassemble the screen without hairdryer? And if I could, is it risky? I don't have the money to buy replacement screen either if I mess up the process
2. As a workaround, I try to modify screen size, dpi, and overscan through terminal emulator. To a certain extent it works. But, as the dead zone is the bottom part of the screen, is there any command or way to resize the screen so that the resized screen is from topmost until the part where the screen still work? (resized said screen result is placed in the middle of the screen, so I can only resize it to a small size, it's a bit impractical)
3. If I overscan the bottom part of the screen until past the unresponsive area, some part of some apps are "drowned"(for the lack of better term) meaning that some buttons are not visible (example: opera browser). Any solution about this?
I'm sorry if my questions are noob's questions(and a lengthy one at that, too). Please help me and thank you so much for your help
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Click to collapse
AFAIK,there's no permanent fix except changing your display which doesn't cost much.
No,only hairdryer won't work,you need a professional heat system to get the digitizer out of the lcd.
I guess the only possible solution I can see is changing your display for the sake of your own good.
It costs only 28 USD.
Woke up today to see that my screen display has somehow shrunk and now I have a black border and my display does not fill up the entire screen panel. All apps get cutoff by this new black border. Is this a setting or something? I looked through the whole phone setting and couldn't find anything that would make this change or reverse it. Please help. I guess another way of saying it is the screen doesnt stretch to fill up the entire panel like it normally should.
10cheesecakes said:
Woke up today to see that my screen display has somehow shrunk and now I have a black border and my display does not fill up the entire screen panel. All apps get cutoff by this new black border. Is this a setting or something? I looked through the whole phone setting and couldn't find anything that would make this change or reverse it. Please help. I guess another way of saying it is the screen doesnt stretch to fill up the entire panel like it normally should.
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Try with adb from pc use command prompt to type
adb shell wm overscan 0,0,0,0
Or use terminal emulator type as below
su
wm overscan 0,0,0,0
Need root.
Post the picture so can see if it does not help
I dont have root. Can I do any of this without root?
10cheesecakes said:
I dont have root. Can I do any of this without root?
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Not sure you can try the pc method, Can you post a picture so i can see what was the exact problem.
superac11 said:
Not sure you can try the pc method, Can you post a picture so i can see what was the exact problem.
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I have attached the pictures. The 3 phone pics show the odd black border or the screen just shrinking in as the corner contours are still there from the edges. The Guardian Tales image is from taking a screen shot using the Power + Vloume Down key combo and takes a picture of the whole screen without the border issue. Its really odd.
10cheesecakes said:
I have attached the pictures. The 3 phone pics show the odd black border or the screen just shrinking in as the corner contours are still there from the edges. The Guardian Tales image is from taking a screen shot using the Power + Vloume Down key combo and takes a picture of the whole screen without the border issue. Its really odd.
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I still don't understand your problem, I don't see anything wrong with the picture. And for the screenshot it will be always perfect as those are not related to the display.
If you look at picture 4, bottom right corner, the KONG logo is cutoff, it should look like picture 1. The black border in pictures 2 and 3 shouldnt be there, the homescreen should be fully covering the display and not have that thick of black broder cuase the display shrunk for some reason.
your display is not shrinking, the LCD is failing.
aNGERY said:
your display is not shrinking, the LCD is failing.
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What do you mean failing? Its brand new and not even like 2 months old @[email protected]
Not sure if there is a setting or not, but my phone has been the same way since purchase. The screen does not go right to the end of the bezels. Some apps are cut off in each of the corners, because it seems it's scanning the image to a perfect 90 degree corner, meanwhile the screen itself not a 90 degree corner, but more of a concave corner. Because of this, the app is getting cut off in the corners, not much, but some.
I always assumed it was due to the way OnePlus has its screen and apps not properly scaling to the screen corners. Some apps have black bars on the side and it's not known or shown. Other apps that scale up to full screen in landscape mode, to the edges of the screen, those are the ones that get cut off at the corners.
In your picture, it's the same, that image is being scaled up to full screen in landscape, since the word Kong is in the far bottom right corner, it is cut off when scaled up.
Hey,
I got problem: after changing broken display, new on has some issues: i can see very small blinking horizontal stripes (darker and brighter, so they are visible mostly on colors other than black/white) and they are moving, like when you record screen with different refresh rate.
Also sometimes there is problem: when I turn on screen, after few seconds all colors change to bright and contrast is extremally high (like with using some bad picture filter), or very rarely i have vertical stripes, which become more visible, all screen becomes brighter and there is no response when I touch screen. This two problems dissapear, when I turn off and on screen again. (but I still can see delicate horizontal stripes - these are all the time)
Is it problem with software, or hardware?
If hardware, it is because broken/poor quality screen, or there is some issue (damage? dirt?) on the connection between screen and mainboard, on socket or band?