Screen Jumping, and Sometimes Unresponsive - Galaxy S 4 Active Q&A, Help & Troubleshooting

Just picked up a second hand S4 Active. At times, the screen gets jumpy. It looks as though you are trying to swipe between screens. Also, it will at times go unresponsive. Touching the power button to turn the screen off, then turning it back on with power or home, fixes it.
I am going to take it apart to see if there are any signs of corrosion, and make sure the LCD connector is tight. I really don't think it has water damage, because the stickers are white. I suppose they could have been replaced.
I saw some youtube things that said a swelled battery could be the culprit, but the battery is not swelled at all.
Any ideas on this? It's a flicker - it jumps around. Turning the screen off and on fixes it, so I'm not really sure what the deal is.
Thanks much.
Should have added - it's on stock 4.4.2, if that matters.

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Need help! Screen won't turn on!

So yesterday my toddler son was playing with my Sprint Diamond when I saw him drop it onto the carpeted ground. The phone probably fell maybe about a foot but I guess the angle it hit the ground caused the battery cover to pop off.
When I picked up the phone, I noticed the screen was off and assumed it was in sleep mode because the battery didn't dislodge or anything. But when I pressed the power button, the phone wouldn't come on. I tried pulling the battery, hard resetting, etc but the screen still won't turn on.
While I was playing around with it, holding down the volume down button, power button and enter button at the same time, I could see the screen come on for a bit, then go blank again.
Physically there's no visible damage, there isn't even a scuff or scratch on the corners where the phone probably hit the ground. However, by some freak chance I think the fall caused something to go wrong internally, maybe the LCD digitizer became loose?
When I pull the battery and restart the phone, it vibrates as if it were powering up. But the screen never comes on.
Considering I don't have insurance on the phone, taking it back to Sprint is not an option and I'm out of the warranty period. Has this happened to anyone before? Any advice? Anyone have experience disassembling a Diamond? How hard was it? Thanks in advance.
the diamond (sprint) is a layered device.
you will need some very small screwdrivers lots of light and patience.
the screen is glued to the digitizer and the front housing, removal from the housing WILL crack it.
the boards and lower button pad con be removed safely, for inspection/reseating of plugs.
if the problem is not a loose plug,than a new screen and digitizer is in order and available on ebay from china

[Q] My screen taps/touches/clicks itself

as the title says i was reading when the menu started showing and hiding again and again i tought was some book issues but when i got to the homescreen it began to run apps i had on it, i have no idea of the cause of this problem
I've had this same problem. I believe it's just the software and not a deficient screen. If you look over on the nookdevs website, there's a page about recalibrating the screen. I've tried it a couple of times and it's definitely improved it. Every now and then something wacky happens, but I guess that's to be expected when you let B&N develop for Android.
I had this happen myself once, and it was pretty annoying... If I didn't have adb available I don't think I could have fixed it until I did. I wasn't able to tap the screen myself, it was taping all over the place.
I did manage after a few minutes to get multitouch paint installed and it was drawing weird dots, lines, angles, etc...
I now have the recalibrate command in gscript but not sure I could run it while it's acting up. Luckily it's only happened once, and it happened while plugged in but never seen it happen again.
Happens a lot on my NC, and I think every time its because my kids touch it with dirty fingers (sweets, chocolate etc), smearing small amounts of dirt on the screen.
The screen goes nuts within few seconds, thinks its being clicked etc...
Wiping/cleaning the screen helps to resore normal behavior, btw - while the screen is moist it does not work for me at all...
Ordered screen protectors, lets see if it makes a differencel
My screen randomly goes nuts as well. It seems like a sudden, rather than a gradual thing. The screen sometimes gets pretty dirty, but cleaning it didn't seem to make much difference. Odd thing is, what DID make a difference was taking it out of the aftermarket case. I have no idea why this would work, but it does. One thing this case does is that it pushes the power and volume buttons in, as it uses four elastic straps at the corners. Maybe holding these buttons a certain way recalibrates the screen, and if you're touching it at the time, it freaks out?
I've noticed my screen only bugs out when I have it plugged into the charger.
As long as its unplugged, its fine. As soon as i pop in the cord, the screen goes haywire.
Only the wall charger though, not when its plugged into the USB on the computer.
My screen was doing that until I got a screen protector.
Sent from my LogicPD Zoom2 using XDA App
Also, if you lock and unlock the NC it should stop acting funny.
I noticed that too. Mine hasn't gone REALLY nuts since I took it out of it's case, but sometimes when playing angry birds, it freaks out to the point where I can't play. Hitting the power button, and then hitting it again, and unlocking makes it normal. Wouldn't that indicate it's software instead of hardware? Maybe there's more than one problem?
RChadwick said:
I noticed that too. Mine hasn't gone REALLY nuts since I took it out of it's case, but sometimes when playing angry birds, it freaks out to the point where I can't play. Hitting the power button, and then hitting it again, and unlocking makes it normal. Wouldn't that indicate it's software instead of hardware? Maybe there's more than one problem?
Click to expand...
Click to collapse
Mine does the same thing every now and again. And like you, locking the screen and waking it back up fixes it every time. It's definitely software related.
Do your cases have a latch? With a magnet? Because I'm starting to think that may have something to do with it.
My case has a latch, but the magnet is not against the nook when I'm using it..
HotShotAzn said:
Do your cases have a latch? With a magnet? Because I'm starting to think that may have something to do with it.
Click to expand...
Click to collapse
Heh, I've considered that.. Also considered the mystery sensor to the left of the Nook button too.. Nook is afraid of the dark.
Seriously though, with the CPU guvna' set to ondemand and wifi turned OFF before I power it off I haven't seen it reboot yet. It rebooted once yesterday and I know it had wifi left on as I had just been using it and didn't turn it off before it went to sleep.
So totally making up numbers here....
Default CPU governor + wifi on = 30% chance it's gonna reboot when it goes to sleep..
ondemand governor + wifi on = 20% chance it's gonna reboot
ondemand govenor + wifi off = <10% chance it's gonna reboot (not gonna even say 0 here.. heh)
RChadwick said:
My case has a latch, but the magnet is not against the nook when I'm using it..
Click to expand...
Click to collapse
I tested this theory. When the Nook is in the case, I get crazy screen taps when i try to type something. Out of the case, its perfectly fine.
When I just rest the Nook on the open case (not inside the straps/holders), it will also get crazy screen taps.
One thing to note is I also did not have any problems before updating to 1.0.1. Not saying the update is the cause of the problem but its one of the variables.

[Q] Captivate water damage?

I have been given a captivate from a friend who said he dropped it in the toilet, it turned off when he grabbed it.
He said he stuck it in a bowl of rice over night after removing the battery.
First thing i did was wipe it, odin came back a full success no errors.
When i boot it i see the at&t thing & the little 3g fly by, but the screen is all cloudy. Once its booted up i see the screen locked deal and i can swipe it to unlock and and even change the pages. After a few seconds i will notice the screen starting to fade to black, all this time still being cloudy. If i manually turn the screen off with the power button for a couple minutes, i am able to turn it back on and see the cloudy screen again.
My questions are these.
Seems to me the LCD is messed up, Can i just replace the LCD?
How do i know if anything else is damaged?
Ive read about the battery indicators, both of which are still white.
ive already taken it apart , "comfortable when its a free phone", and notice a slight burn mark from a resistor on the LCD to the metal shielding that it is pressed up against.
Any ideas would be helpful.
SRobby said:
I have been given a captivate from a friend who said he dropped it in the toilet, it turned off when he grabbed it.
He said he stuck it in a bowl of rice over night after removing the battery.
First thing i did was wipe it, odin came back a full success no errors.
When i boot it i see the at&t thing & the little 3g fly by, but the screen is all cloudy. Once its booted up i see the screen locked deal and i can swipe it to unlock and and even change the pages. After a few seconds i will notice the screen starting to fade to black, all this time still being cloudy. If i manually turn the screen off with the power button for a couple minutes, i am able to turn it back on and see the cloudy screen again.
My questions are these.
Seems to me the LCD is messed up, Can i just replace the LCD?
How do i know if anything else is damaged?
Ive read about the battery indicators, both of which are still white.
ive already taken it apart , "comfortable when its a free phone", and notice a slight burn mark from a resistor on the LCD to the metal shielding that it is pressed up against.
Any ideas would be helpful.
Click to expand...
Click to collapse
To test whether all the sensors, vibration, touch screen, LED colors, magnetic sensors works properly, install and use SGS Tools..
There are lot of tests and testing modes available there.. hope this helps

Loose screen

I have a Galaxy Gear that I barely use because most of the time when I'm out I'm at work.
In the past few months, I noticed it had issues charging and later issues turning on. I just realized now that the bottom part of the screen is actually popping off causing the watch to not charge or turn on. It turns on when I squeeze it together. If I squeeze the bottom part, it seems the top is also coming off, although not as much.
Has anyone had this occur on their watch?
I'm thinking on taking it apart and using Ultra Gel to glue it back together. That stuff is strong.
Any solution? I have a same broblem.

Xperia Z3 Compact Screen Flickering at Random

I have a D5803 that came back from being serviced. The touchscreen went bad, so the whole assembly (screen + sensor) was replaced.
Since you have to almost completely disassembly the phone to get to the screen, I suspect something went wrong during the repair.
The screen is flickering at random. By flickering, imagine a bad fluorescent lamp: you can clearly see the brightness varying vary fast, causing a flicker effect. Also, imagina a CRT screen. The flicker stops when you refresh the screen, like cycling through the home screens of your phone.
The guy who repaired it said it is a bad resistor that controls the current going to the panel's backlight. His excuse is that the board is very thin and fragile and that something might happened during the repair service. He also said that if he tries to do something else, the problem might get worse/something else might break. I suspect the screen installed is not OEM and is of bad quality. Sometimes the screen keeps autopressing as if someone was actually touching the screen, but not. Wiping the screen down on soft clothes (cleaning it) solves the problem. The screen probably doesn't have an oleophobic coating.
So, my question is: Is this guy right or is he lying (trying to push me ****ty parts/service)? How to know?
Also, is it possible to have a slightly smaller sized screen part? Because it feels that the screen area has decreased a bit (bezel increased somewhat). But since I do not use this phone since almost two years ago, I might be imagining things.

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