Screen reading the wrong unlock pattern - Epic 4G General

I've noticed that sometimes, the capacitive screen gets the wrong unlock pattern when I slide my finger through the dots in order to unlock it. I even move my fingers slowly and carefully and the wrong dot gets lit up or the pattern moves down when I'm moving up. This happens especially when the phone first boots up and when it's been idle for a while. It's so bad sometimes, I lock myself out due to the numerous attempts, even if I'm doing it carefully.
Anybody else experience this?

If it keeps bothering you, get a replacement. Not many people can help you if you have a sensor issue.

I'm going to do just that, since it's not the only problem I have with this phone. Seems I got stuck with a defective unit. My system volume is too low even though I have it set to the max and my speaker sounds like it's cracked. People sound like robots.

Related

G1 Screen problem

Hello, My G1 has just suffered a problem, i was scrolling down a web page and the screen faded out like it had lost power but the backlight was still on, the keys lit up and it still could make the trackball clicking noise when you moved it. I took out the battery and left it for 5 minutes and rebooted my phone and the screen turned on for about 3 seconds and faded out like before but it did boot into android as I heard the notification/startup sound. I think that the screen has burnt out but im not shore so has anybody had this problem before and/or might know how to fix it
Just some more infomation, If the screen dies and I leave it for a few minutes, when I unlock it or slide the screen up, the screen works for a few seconds but then fades. Also the fading looks like the screen lost power or like its losing pixels
From my experience with phone hardware this doesnt look like screen problem, but rather the lamp driver in the motherboard. the only way to narrow down is test the motherboard /screen with another phone.
If this is the case, it might require servicing the backlight driving circuit, which by far requries soldering/desoldering some components in motherboard.
wilkinlp01 said:
Hello, My G1 has just suffered a problem, i was scrolling down a web page and the screen faded out like it had lost power but the backlight was still on, the keys lit up and it still could make the trackball clicking noise when you moved it. I took out the battery and left it for 5 minutes and rebooted my phone and the screen turned on for about 3 seconds and faded out like before but it did boot into android as I heard the notification/startup sound. I think that the screen has burnt out but im not shore so has anybody had this problem before and/or might know how to fix it
Click to expand...
Click to collapse
had the same problem its a hardware issue. tmobile sent me a new phone no questions asked
Thanks for the replies, it seems that it has fixed its self as I've been using it for about 5 hours and no problems so far, I'm using it right now to type this, if the problem persists I will try and fix it or just buy a new one

Touchscreen loosing input.

My touchscreen is almost suttering, like i hold my finger down it will undetect it for a millisecond or so every few seconds, this makes it almost impossible to do my pattern (unless really quickly).
Tried multiple roms, all the same.
Can someone install multitouch test and tell me when they hold there fingers down if it resets, every 1-60 seconds? You'll notice a very quick dissapearance of the blue dot / text.
Thanks,
Ryronz
Okay ignore me, im being newb. Appears to be Digitizer, if i press firmly on the bottom half of the screen it sets it off. Will see about replacement.
If you're talking about the unlock screen, did you see my thread which describes similar symptoms to yours? There's a fix there too.
http://forum.xda-developers.com/showthread.php?p=13604352
xurizaemon said:
If you're talking about the unlock screen, did you see my thread which describes similar symptoms to yours? There's a fix there too.
http://forum.xda-developers.com/showthread.php?p=13604352
Click to expand...
Click to collapse
Well I have a pattern lock, its not so much that its unresponsive. Because its perfectly responsive, so it just keeps thinking i've lifted my finger off.
For example, if I want to long hold an app to move it, it'll just open it, because after about 1 second it resets input, so it thinks i've just touched the app as opposed to actually holding on it.

[Tips and Tricks] Transformer display appears dead

I have read several threads, both here and on other support website on the Transformer's display randomly having a tendency to fail (in some cases anyway).
Often this is through no fault of the user with lots of users being affected who's Transformers aren't rooted and have suffered no damage.
I found all these forums because one day my Transformer did this. I used it that morning and then locked it for the day with wifi on walking around my college, meaning it was likely to be on wifi all day but I wasn't using it.
When I got home I pressed the lock button and the backlight came on but nothing else? This confused me so I pressed lock again, backlight switched off, press lock again, backlight came back on but still nothing actually on the display, just a black lit up display. Hmm this is definitely weird. Held down lock button until the screen had gone blank. Pressed lock and it made that mechanical click like usual and the speakers flickered like usual. The backlight had came on but no display still.
It seems that the power to display is still connected but a ribbon cable that provides the input comes loose somewhere. After rebooting several times with no luck I got bored and started shaking it around a bit. Not violently or hitting it, more waving it around like a crazy person.
Suddenly it made a clicking noise and I saw it had restarted. Now there were loads of blue lines across my screen. The blue lines remained until what seemed like the duration of the time it took to boot. Then it went blank again. I shook it around some more and when I was ready to give up I pressed the lock button and it lit up, my background and all. Touch input is working and everything appears to be working.
I thought I would just write this in case someone is experiencing this issue and rather than sending it back (or if you have rooted so have no warranty) you might with any luck be able to fix it just by having a little dance with it!
Good Luck.

[Q] VS980 Stock OTA - Lock Screen Glitch?

I've actually had no luck finding anyone reporting this issue, but it's one that is really starting to bug me...
Sometimes, when I turn the phone on, rather than the traditional lock screen, the camera screen that you can ordinarily get to from the lock screen shows up...but it's not the full camera screen; it fills up like 3/4 of the screen, and the buttons have no functionality. Almost as if I had swiped over to the camera, but it froze about halfway through opening it.
I have tried to discern a pattern here, but there doesn't appear to be one...whether I turn on the screen with the power button or knock-on, it still happens randomly. I thought for a while that it only happened when I locked the phone with an app running on the screen, but that proved to be incorrect as well.
Like I said, having no luck finding anyone else reporting this. Has happened since I got the phone, even after updating. I've got a feeling its just a glitch I'm not going to do anything about, but if anyone has had any luck making this stop, I would greatly appreciate some advice!

G4 Digitizer problem?

I have a Moto G4 that has had the touch screen become very erratic lately. This issue appeared shortly after a factory reset. The phone is stock, recently OTA updated to NPJ25.93-14.7. It frequently freezes and won't respond to touches of apps or the home/back/recent buttons, and won't side scroll to the next screens properly. Sometimes random apps launch on their own without any touch, and if you try to quit them with the back button they keep relaunching. The problem is intermittent.
I activated "Show Taps" in Developer Options and when the problem is happening there is a tap dot near the lower right side of the screen. It bounces up and down a little bit and vibrates sometimes. When this dot is visible tapping on anything else like app icons or buttons usually has no effect, however the taps are shown on the screen. If I hit the power button to make the screen go black it will sometimes recover when I reopen the display, other times it takes a reboot.
Wondering if it's a hardware issue, a guy at a Verizon store who seemed to know more than most said it was a faulty digitzer--it's seeing touches where there are none. I've replaced displays successfully before, would just like to have a confidence level that the digitzer is really bad before doing that, as opposed to a software or other hardware issue. Any ideas about problems that might cause this problem, like other hardware or a corrupted OTA? Seems very hardware-ish to me, but I'm no expert.
I have Drive links to a couple of short videos on the symptoms, can send links. Much appreciate any insights.
Mine has that issue as well. It will spam the 9 key on the unlock screen or anything in that spot if an app is open or what is on that spot at the home screen. I have to double unlock the phone to fix it. I guess turning the screen on and back off resets it for that session. But it's mostly every time the screen goes dark and comes back up I have to turn the screen off and back on to use the phone.
I had a similar problem and was able to send it in under warranty and get a replacement phone
G4 Digitizer or ghost touch
Apparently this is called Ghost Touch issue, and affects many phones. One solution tried is to disable Battery Optimization for System UI and Google Now Launcher in Settings>Battery>Battery Optimization. That seemed to cure it for a week or so, but the problem returned today. I can sometimes recover form it by hitting the power button to blank the screen and then reopen. Other times it requires a reboot. I see all kinds of alleged solutions out there from dimming the brightness to removing tempered glass protector to using a slow charger, but those don't seem like real fixes but workarounds (if they even work at all). Any other ideas?

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