Erratic phantom screen input - Sony Xperia Z Ultra

So I have had my ZU for almost two weeks now and loving it, however something has started to get on my nerves and I'm afraid I have something wrong with my phone. I know I shouldn't get so nitpicky but I spent heaps of my hard earned student cash on this phone and I want it to be running smoothly!
Anyway, from about day three of having my phone I started noticing erratic screen behaviour like phantom screen input - as though when the screen of any regular phone has water droplets on the screen and the screen goes haywire, however in my case the screen is completely dry? It usually goes away after I lock the screen but it gets rather annoying when I am typing a text and then all of a sudden all these random keys and words start being typed (and not by me!), so I would like to know has anyone encountered this problem?
My phone is stock rom and has not been rooted. I don't have a screen protector nor have I used any other styli other than my fingers.
My phone is bone dry and I live in summery Australia so air humidity can't be a factor. And I'm pretty sure there's no ghosts in my house!
On the current build .136
What should I do? Is this a faulty screen? I have checked other topics regarding this and my issue doesn't involve any lag or latency between from my own keystrokes than to those done by screen.

bellabee said:
So I have had my ZU for almost two weeks now and loving it, however something has started to get on my nerves and I'm afraid I have something wrong with my phone. I know I shouldn't get so nitpicky but I spent heaps of my hard earned student cash on this phone and I want it to be running smoothly!
Anyway, from about day three of having my phone I started noticing erratic screen behaviour like phantom screen input - as though when the screen of any regular phone has water droplets on the screen and the screen goes haywire, however in my case the screen is completely dry? It usually goes away after I lock the screen but it gets rather annoying when I am typing a text and then all of a sudden all these random keys and words start being typed (and not by me!), so I would like to know has anyone encountered this problem?
My phone is stock rom and has not been rooted. I don't have a screen protector nor have I used any other styli other than my fingers.
My phone is bone dry and I live in summery Australia so air humidity can't be a factor. And I'm pretty sure there's no ghosts in my house!
On the current build .136
What should I do? Is this a faulty screen? I have checked other topics regarding this and my issue doesn't involve any lag or latency between from my own keystrokes than to those done by screen.
Click to expand...
Click to collapse
Build 290 and 136 got rid of this problem for most users. Give the screen a good clean
You could also search for a thread by hamdogg (or at least he commented on it) about a edit in the system to lower the touchpanel sensitivity - but will need root.

Related

Touchscreen stops working / random presses

Recently my touchscreen has been acting up on me. Sometimes it will either lock up completely and ill just press power 2x to get it to work again. other times stuff will randomly start to open or if its on the home screen the phone will switch pages left and right at a very high rate of speed the screen almost looks like its flickering.
this just started yesterday, ive ran 2 antivirus apps on the phone and both say its clean so i doubt its a virus, im not sure if its hardware or software related, im thinking about doing a re-flash, but i have a feeling that might not fix the issue..
has anyone else encountered this problem? it can get annoying at times cause it almost stops me from using the phone completely.
Edit: I would also like to note, i thought it was the screen protector i had on, but i took it off and the screen is still acting up
I had this happen last night after I installed a screen protector I got from eBay (they were $4 for 10 with free shipping). I'm guessing it was something in the glue because as soon as I took it off, the phone went back to normal. It always seemed to be 'pressing' in the same spot because I was trying to send a text and it kept popping up with a menu about the contacts info. Also, when that would pop up, the capacitive buttons at the bottom (menu, home, back and search) wouldn't work so I had to lock the phone and unlock it to gain control.
scream_clarity said:
I had this happen last night after I installed a screen protector I got from eBay (they were $4 for 10 with free shipping). I'm guessing it was something in the glue because as soon as I took it off, the phone went back to normal. It always seemed to be 'pressing' in the same spot because I was trying to send a text and it kept popping up with a menu about the contacts info. Also, when that would pop up, the capacitive buttons at the bottom (menu, home, back and search) wouldn't work so I had to lock the phone and unlock it to gain control.
Click to expand...
Click to collapse
i had a Skinomi screen protector on, its been on for almost 2 months now and this only started last night so i dont think it was the screen protector
Jc61990 said:
i had a Skinomi screen protector on, its been on for almost 2 months now and this only started last night so i dont think it was the screen protector
Click to expand...
Click to collapse
Did any water get in the phone?
i have same problem and make me shock,
my motorola have anti glare screen guard
while iam eat chicken soup and play mini plan , i didnt notice if my finger are wet couz of soup, meanwhile i notice that at that time the touch screen are still good i can play the game, so i quickly try to clean it up using tissue , while i try clean up my phone keep pressing like crazy so i stop to clean it but it keep pressing like crazy, event i have already out from the game, i cannot stop it, so i must pull out the battery and put it back,
i think Atrix the touch screen are too unstable , compare with milestone milestone is better but it's less sensitive then atrix
it normal again after pull out the battery and i clean it up
I never got any water inside the phone, only on the screen protector when applying it to the screen as directed in the instructions for the skinomi screen protector.
the screen protector has been on the phone for 2 months no issues. its only now i see this happening.
i removed the screen protector to see the issue still there.
i have done a factory restore with no changes
i downgraded to 1.52 with the random tapping still going.
i think it might be hardware related.
im going to bring the phone to an AT&T store for a swap

Nook tablet remotely hacked?

My nook tablet was opening apps like Facebook and google search and typing unusual letters in the search and status boxes. Anyone seen anything like this? It honestly seemed like the device was being controlled remotely. I wasn't even touching the device and it was trying to type letters. My device has been rooted for about two weeks. I've not seen anything like this until tonight.
What was your battery charge? There are reports of the touchscreen acting weird when the battery is low.
yea, sounds more like a glitch in the touch screen. this happened on my phone. I would warranty it. Make sure you unroot first
It sounds like a defective unit... I have a Droid X that does the same thing; started happening about a month or two out of warranty. I've factory reset / SBF'd it a million times and it still happens, rooted or not.
For me, it seems to happen more frequently when the screen is dirty (but also happens when perfectly clean), and especially bad if I am wearing clothing that generates static electricity (fleece and other synthetics). Makes me wonder if the screen isn't grounded properly.. the phone has a lot more flex in the chasis than it should and sometimes flexing it in just the right way will make the problem stop.
Thanks
Thanks much for the replies. The battery was very low and I was sitting in a chair that could generate static electricity. Also noticed little bits of dog hair caught between the case and the screen. Not sure I'm going to return the unit just yet. It could have been a fluke. The only time I've seen a machine act like that is when someone controls a server at work remotely. It was really strange and seemed like a program was attempting to type on its own.
One other caveat is that I had installed Aurora on the tablet earlier in the night. It's a browser by Mozilla in development. It was running really sweet so I don't think that had anything to do with it. I did notice that the tablet was locking up on a couple pages and really sluggish for a bit while using the default browser. It then responded fine until the ghost took over.
One other question if anyone is still listening: if this happened to you did the keyboard come up? It didn't appear when the letters were being typed in my case.
I was thinking a cover and possibly a shield may be in order. I've got a year, so it if happens again even one time I'm going to return the unit- after unrooting of course.
My Nook Color will do this as well when it has been zapped by static electricity and when there are a bunch of finger prints all over the screen (usually when the finger oil gets built up around the edges of the screen it starts).
A good wipe down with a microfiber cloth (with the screen off) fixes it for me. Granted this is Nook Color and not my Nook Touch we're talking about, but I figure the behavior could be similar.
Good luck!
Merrell
Weird, I could swear there was a thread about this, but now I can't find it for the life of me.
Anyway, it's a known issue- no need to panic and return the NT.
When the battery gets critically low, sometimes the NT will seem to have a mind of it's own and everything you describe starts happening. Apps open themselves, random text types itself, touchscreen completely unresponsive, etc.
I've seen exactly the same thing, and also at first wondered if it was a remote hack. Then I noticed the pattern that it's only during extreme power lows.
Just recharge to at least a minimal level and there's no problem.
zaptoons said:
Weird, I could swear there was a thread about this, but now I can't find it for the life of me.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1431091
Ah. I knew I posted there, but thread is strangely missing from my 'find all posts..' results.
macrossmerrell said:
My Nook Color will do this as well when it has been zapped by static electricity and when there are a bunch of finger prints all over the screen (usually when the finger oil gets built up around the edges of the screen it starts).
A good wipe down with a microfiber cloth (with the screen off) fixes it for me. Granted this is Nook Color and not my Nook Touch we're talking about, but I figure the behavior could be similar.
Good luck!
Merrell
Click to expand...
Click to collapse
Same thing happens to me but I only switch the screen off and on and then it goes away.
As has been mentioned, charge it, clean the screen, wash your hands. This should take care of the "autogibberish". As far as opening software... do you mean that it is opening foreground applications? Or that software will just load in the background? If the latter, this is NORMAL behavior of Android -- it will load software into memory so that it is instantly available when you try to run the software. If the former, probably related to the dirty screen.
I do NOT believe that this is a hardware defect. It rather is a side-effect of a LARGE touch surface. The bigger the touch surface, the more likely it is to be subject to random static charges.
Whoops didn't realize how this thread was!

[Q] Screen flicker/dims/blacks out issue

Any help much appreciated....I have an issue with my screen flickering, dimming very faint and going black when i touch my screen. sometimes my screen will go black for long periods of time and phone is practically useless. This is not an issue of just a slight flicker on light colored screens that I have read other people describe. The screen does not always do this but is definitely getting more frequent. The flickering/dimming happens when I touch screen and especially when I touch it with more pressure. It also seems to be more sensitive on the bottom half of the screen.
I consider myself as the "scientific type" and have been testing many different scenarios trying to find a rhyme or reason to this happening. The only thing I have found is that if I keep my phone out of my pocket the problem seem to not happen. Then I can put my phone in my pocket for as little as 5 minutes and my screen could be messed up for hours. Everything else about phone seems to work great.
At first I was thinking this was a software issue but now I am leaning towards hardware? I am rooted, unlocked with s-on and cannot send back for warranty. I was running mean Rom for many versions and have also gone back to stock rom and stock kernel and experience same problem. Many reboots and clean installs too. I have also taken phone apart and reconnected all ribbon cables hoping there was a bad connection.
My Evo lte is only 4 months old and has never been dropped nor has it ever been wet. There are no scratches on screen and has been in otter box since the phone was brand new. I am running out of ideas and am I dire need for advice.
Thanks,
Mike

[Q] My HTC One's touch is acting weird...

So, this thing drives me crazy...I've tried everything I knew and still nothing solved this problem.
I'm using HTC One. About 10 days ago weird things with touch started to happen. It seems that touch is partly unavailable/unresponsible on touch in one or two small areas. It seems to me like theres an empty place on my touch. Visualy is everything fine. Screen is crystal clear and has no damages or scratches. But I can't slide icons without troubles. Somwhere on 1/4 of screen, touch brakes briefly and I need another try to slide the icon. The same thing happens with status bar on the top of screen - I can slide it until that 1/4 part and it stops there and goes back. If I slide it quick with short move, it works fine, just slide alone over problematic area.
Also, few times I had that problem where screen works things on itself will. Makes pictures, or adds filters on Instagram, or, I don't know, just jumps around for few secons. Then, I lock the screen, then unlock it and usually that calm down the screen.
Also weird thing is that, when I want to send message, I can't reach "send" button in first try. I have to drop down writing sheet, than to touch the letters to put it in writing mode again, and then I can click the "send" button. On the same place where it was previously!
At first, I thought that plastic case or PVC protection is the problem, so I took off the protector from the screen. That solved problem for a bit. Then, I put back screen guard, and problem came back. After I totally rejected screen guard, problem is still here. I've tried to reset phone on factory, but that wasn't helpfull...
I forgot to state that I'm using Android 4.2.2 and this started to happen after that version update. I had no problem before.
So, now I'm here, as I don't know what else to do before I take this beauty to service. I just hope that this happens because of software bugs :crying:
Is there anyone who could help me? Have similar problem or know how to fix this?
In the meantime, I'll just hope that 4.3 will fix it themself... :fingers-crossed:

Display turned different colors first all yellow and other looked horrible now BLANK

The phone's been dropped a few times but nothing happened except a few very light scratches.Then I've left it in a bag and found it shattered.
A few months later I was like wtf? when I was watchng a video and all of screen turned yellow.At first I thought it was a film but no.Tried fixing by removing battery but the yellow tint stayed.A few days later it's been soaked in water.Booted once then froze.Had it repaired in phone service.The screen kept changing colours randomly.A few weeks later the screen went black and sometimes very rarely started working again until I turn it off.Now almost impossible to get it display anything.I've never harmed it and I'm having the consequences.I'm about to replace the lcd but I'm asking you if the screen is an issue or what?I've tried reconnecting lcd cable and it didn't help.I've been searching for the screen color issue lots of times and nothing relevant.What causes this?
Code:
TL;DR dropped a few times shattered in bag started changing colors water soaked fixed in service now blank.Im bout to replace lcd.
CAN it be anything else?I don't want to waste money.
blankscreenissue said:
I've never harmed it and I'm having the consequences
Click to expand...
Click to collapse
*cough*
Dropped a number of times & 'soaked in water'. You sure you don't want to reconsider that comment ?
Sounds like the screen, but given the phone's 'history', you're only going to know if you replace the screen. If you're asking people on here to diagnose hardware issues with 100% certainty without having the phone in front of them, you're going to be disappointed (it's impossible). If you don't want to risk forking out money for a screen only to have other problems after you replace it, take it to someone who knows what they're doing to make doubly sure it's just the screen that's damaged/faulty.
P.S - Pro tip: Paragraphing/using some semblance of formatting will make it far more likely people will read your threads. Typing a couple of hundred words in one lump separated only by full stops & question marks will cause a lot of people to simply not bother reading your thread - it's just too hard.

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