Touchscreen problem - Sony Xperia C

Everytime I register 2 touch points on my screen especially when I do rapid typing the screen creates a line. I have screen shot but idk how to post it here. This problem is very annoying because I cannot type fast, it creates a problem with games and other function whenever I register 2 touch points. I also went back to the shop to isolate if the problem is just with my phone. The other phones also does this. You guys might want to try going to service menu *#*#7378423#*#* Then go to service test> touch screen, then try to rapidly tap both edges of your screen if it registers a line.
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Does anyone have the same problem? I restored fctory 5 times already. Still the same. It's annoying. It's the first time I encountered this problem from all android phones I used from low end to high end.
Sent from my C2305 using xda app-developers app

ouychiat said:
Everytime I register 2 touch points on my screen especially when I do rapid typing the screen creates a line. I have screen shot but idk how to post it here. This problem is very annoying because I cannot type fast, it creates a problem with games and other function whenever I register 2 touch points. I also went back to the shop to isolate if the problem is just with my phone. The other phones also does this. You guys might want to try going to service menu *#*#7378423#*#* Then go to service test> touch screen, then try to rapidly tap both edges of your screen if it registers a line.
View attachment 2586019
Does anyone have the same problem? I restored fctory 5 times already. Still the same. It's annoying. It's the first time I encountered this problem from all android phones I used from low end to high end.
Sent from my C2305 using xda app-developers app
Click to expand...
Click to collapse
no problem in mine

I have the same problem. However, it only registers a line if I tap at left and right edge fast and rapidly (almost simultaneous). It also happen in tapping at random position (e.g center) but not as often as tapping both edges. I have the problem of typing the keyboard too, which seems related.
Upgraded to newest firmware 16.0.B.2.1.3 but the problem persists.
Here's screenshots. Tapping at left-right edge rapidly vs center (see the dot differences)

my problems persist while fast typing, sometimes the letter doesn't appear...

Same problem :/

I have Sony xperia c and the touch pad is not working. Please guys help me fast. All hard keys are fine. Only I can't touch the screen means screen is not responding to my touch. Plz reply ASAP.

I used to have this problem too. Pressing two points close to each other will only register one touch and a discoloured point on the screen appeared, noticeable on white backgrounds. I sent it to Sony since it was under warranty, they told me they replaced the screen but the problem is still there, except the discolouration thing. Not worth escalating I think

Related

Dpad-right button unresponsive

Hi ppl. I have a problem(and I think,not just me) with Right arrow/way underneath the display. It is absolutely unresponsive very often,suddenly it works normally. It seems,that the touch sensitive surface has an unstable pressure threshold in this area. It is very annoying,so knows someone any solution? Thanks in advance.
TomasNM said:
Hi ppl. I have a problem(and I think,not just me) with Right arrow/way underneath the display. It is absolutely unresponsive very often,suddenly it works normally. It seems,that the touch sensitive surface has an unstable pressure threshold in this area. It is very annoying,so knows someone any solution? Thanks in advance.
Click to expand...
Click to collapse
I have exactly the same problem, really annoying it is. Cannot play games with a right arrow that works half the time
Try to blow in centre button.
try this, use left thumb to hit the right button. Its really annoying, it seems the left right cursor pad it too sensitive and must be pressed at the correct angle
I'm also having this problem.
Do you guys know if it's a hw problem or it can be fixed with one of the custom roms?
Thanks
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Look here
Have you seen :
http://forum.xda-developers.com/showpost.php?p=2923607&postcount=32
&
http://wmpoweruser.com/?p=1698
?
edit: uvz was faster
DSF said:
Have you seen :
http://forum.xda-developers.com/showpost.php?p=2923607&postcount=32
&
http://wmpoweruser.com/?p=1698
?
edit: uvz was faster
Click to expand...
Click to collapse
No, I only found this thread. I didn't find anything in the wiki either.
Thanks for those links.
Oops! .. I thought it only happens with me, there might be some problem in my phone, as it felt down from 6 feets just after 2 days from the day I bought it.
well it's really annoying..
hope to get a solution. (I think the hardware button is not manufactured properly).. (I might be wrong )
I have the exact problem!!!
Does anyone knows where to buy a replacement keypad??? I have been searching for it for days now with no luck. and all I could find is this one http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=120488502946&ssPageName=ADME:X:AAQ:US:1123 and this one https://www.gsm4world.us/htc-touch-...rane-pcb-repair-d-03019_405.html#remote-tab-1 and both have the same price almost $50.00 for a couple of buttons. have anyone found it cheaper???
Have you tried the HTC debug tools to see if the navipad is registering touches in that area?
http://forum.xda-developers.com/showthread.php?p=2511016
You'd be looking for the 'NavDbgTool.exe' in that zip. Just extract the whole zip to somewhere on your phone and run NavDbgTool. You should see some lines and dots moving around on your screen. If you are able to see the lines moving when you move your thumb, it would mean that your navipad is working just fine.
Try running this program when you're unable to press the left or right buttons and see if you get different results.
My guess is that the buttons are just fine, but where you are putting your finger isn't exactly where HTC thought it should go in order to actually 'press' the left or right buttons. If the sensors and underlying buttons weren't actually working, you wouldn't be able to press end call or back either.
Hope this helps!
If you are new to the phone try those suggestions above. If this has just recently started happening when the phone used to work fine, its broken. The capacitive sensor HTC put in is junk, I had mine break 2 times. Got it fixed through warranty. It is not a software issue, you can hard reset, change ROMs, etc. It won't fix it, it is physically broken, and you can confirm it with the NavDbgTool.

Uneven screens?

I want to get this phone, but I've been hearing of uneven screens on the net. People have been saying the bottom of their screens are popping up. has this happened to anyone?
and also, in this picture,
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Is the fact that you can see the light from the bottom of the screen mean that the screen is uneven?
also:
thunder9111 said:
I want to get this phone, but I've been hearing of uneven screens on the net. People have been saying the bottom of their screens are popping up. has this happened to anyone?
and also, in this picture,
Is the fact that you can see the light from the bottom of the screen mean that the screen is uneven?
also:
Click to expand...
Click to collapse
some people have this issue but im not sure if its as severe as in the image...
but mine seems to have a perfect screen
I think I'm having this issue.. where have you read about this?
I'm not sure about this problem, but I noticed that mostly users with Desire S from Asia have the screen popping issue. UK Desires seem to be fine.
From Asia here but no problem with the screen. I think it's random.
No screen mounting issues here on german Desire S.
On the picture it's a reflection on the metal edge.
Hi my first post on XDA but have been skulking about.
I'm in the UK and have had my DS 3 full days perfect no floors and set up with current OS and skinned.
Though day 4 bottom corners lifting by Home and Search keys and also have the smallest gap between unibody and screen near Volume rocker and touch keys, the gap is enough to see back light coming through in the dark/dusk.
Hope this helps i have a new replacement coming first thing tomorrow will report on that with any news.
Ok so brand new replacement handset and i still have these issues the bottom right corner is already showing that it's raised in comparison to the bottom left corner and there is still a visible gap on the left of the screen can see the charge port through this and light still shining through in the right light.
Looks like bad quality control from HTC will be contacting orange in a mo as i'm still in my cooling off period. I am really disappointed Android OS is great for the customisation but this handset seem's to have been rushed in the build quality.
Hope this helps.
I have a friend with this issue.Mine it's ok.
Greece.
Duplicate post sorry.

Touch screen

I have the HTC One S 3uk version. Ive rooted and have super user access. The problem i have is when using the phone the bottom part of the screen were the menu button is stops responding (the part just above the home button) is there an update or fix for this thanxs.
Reverse it back to stock and if those buttons on touch screen are still unresponsive return the phone in order to get a new one, that's the only thing i can think of at the moment.
i had a post about this but no one responded i just have to lock my screen and when i unlock it again it's responsive . . it's really annoying cause the keypad i use the spacebars where the menu is and half the time i'm texting my space bar doesn't work cause of it and i'm unrooted on stock too so idk bro
im going to email htc and see what they say about it
Same problem here on a European version. The 3 buttons at the bottom freeze, my workaround is locking/unlocking.
It seems like one of the buttons decide to stay depressed, as on one occasion, after locking the phone, I discovered half a dozen of screen captures (Power + Home)
I had the problem before and after rooting the phone, don't have a clue of what triggers it.
here is a screen shot of the affected area and i will let you know what htc have said once i hear from them
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SuperNono said:
The 3 buttons at the bottom freeze, my workaround is locking/unlocking.
It seems like one of the buttons decide to stay depressed, as on one occasion, after locking the phone, I discovered half a dozen of screen captures (Power + Home)
I had the problem before and after rooting the phone, don't have a clue of what triggers it.
Click to expand...
Click to collapse
Check this thread for touch buttons issue.
Been in touch with HTC and they want me to send it in for repair I'll let ya know the outcome.
Sent from my HTC One S using xda premium
ExDr said:
Check this thread for touch buttons issue.
Click to expand...
Click to collapse
Hello,
thanks for linking PulpZillas Thread. I wish to encourage anyone with symptoms like screenshots on SD and randomly misbehaving buttons, unresponsive buttons etc. to check that thread ExDr linked too. That problem has a name but many people seem to have difficulties to identify it and thus find the right thread to post to.
I had it once. Reboot and its gone. All is ok for now since last wednesday morning. It comes after rooting and unlocking bootloader.
Sent from my HTC One S using XDA
Sneakyghost said:
Hello,
thanks for linking PulpZillas Thread. I wish to encourage anyone with symptoms like screenshots on SD and randomly misbehaving buttons, unresponsive buttons etc. to check that thread ExDr linked too. That problem has a name but many people seem to have difficulties to identify it and thus find the right thread to post to.
Click to expand...
Click to collapse
Yeah, found it after posting, sorry for that.
I'm in China, bought the phone here only to discover last week it's a development model, so my complaint report will be immediately voided by HTC.
Will try anyway, just to be one voice stronger ;-)

[Q] Graphic problems with p5100 10.1"

Hi,
I got this weird problem and im not sure is this a hardware problem or not. For example. when using menus with white background, the background goes partly blue. Sometimes the graphic error is only blue lines in some part of the white background.
but when checking one option in same menu the background turns normal or atleast there is some change in the background. So these errors reacts only when changing options. And theyre always in the same position when going the same menu.
Also when using camera. the view is messed up a bit. there is a clear line somewhere in the picture when going dark to bright. With my english its hard to explain especially when i dont have any idea what is causing this problem.
Below are two attachments that explains the problem much clearer than i can write:
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And before you ask. Yes, it has dropped and i have replaced the glass. But i got it with broken glass so i dont know was it like this before it dropped and the previus owner couldnt tell either.
Any possible solutions?
Thank you in advance!
Sounds like a hardware issue, just for the heck of it I would open it up and check the ribbon cable to the digitizer/screen, it could be loose.
Pp.
Checked it. Same problem. Tried to change brightness level, hard reset, rooting etc with no luck.
Its just so weird that in some situations the screen looks totally normal. only these few situations cause errors in the screen.
Hmmm, there are dialer codes that are used on phones that run a series of tests to check screen performance and output, don't know if this can be done on a tablet, but I would research it.
The only other time I heard of this was on a phone that recovered from falling in a toilet, the phone was dismantled and cleaned and assembled and it worked fine for over a year, the only glitch was an occasional color spasm on the screen similar to what you discribe.
Pp.
Thanks for the tip! Need to look for those codes when i get back home. I removed the logic board and cleaned it with denat. alcohol. No visible damage at least! trying to assembly it back later today. I decided to order a new LCD flex cable. Its the cheapest part to change.
No luck with the codes i found. after cleaning still same graphical problems. Now i can only wait the new flex cable and hope it will fix those errors.
Anyways thanks for replys and suggestions. :good:

Fingerprint issues

Hi All
Does anyone have a way of fixing the fingerprint sensor?
I had registered all slots with different fingers, and while it used to be 80-90% reliable, it soon dropped down to 10-20%. I'm not the only one, as Linus from Linus Tech Tips mentioned on The Wan Show that he had also had varying results.
It used to buzz 5 times before saying I had to use the pin. It would buzz with the quickest of power ons, even without touching the power button.
In the end I removed several fingers, still no joy, removed all finger prints, and now I can't even set it up as "Something went wrong", without me even touching the button.
If I go into service mode it says the fingerprint is not OK, until I power off and on the screen, then it says OK.
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Sent from my E6653 using Tapatalk
All you can do is a software repair with pc companion if this doesn't help it means a hardware issue.
gm007 said:
All you can do is a software repair with pc companion if this doesn't help it means a hardware issue.
Click to expand...
Click to collapse
You can try a software repair, but I doubt it would be effective. I think it is a software issue, but a firmware one, many users here and other forums have complained about inconsistent response of sensor.
My experience is it worked really well for about a day, then quickly got very inconsistent and often times really poor. Some users say registering the same finger in more slots will help.
With the advice of another user here a week or two ago (can't remember the name do a search for my user name and fingerprint sensor) I re-registered all five fingers I had previously entered taking great care to register each finger in all kinds of different angles and directions. That seemed to work wonders, but alas again only lasted less than two days before regressing badly. It is now a little better than before but still inconsistent and at times very unreliable.
---------- Post added at 11:20 PM ---------- Previous post was at 11:12 PM ----------
Btw if I do ...Diagnostics/Test/Fingerprint sensor it works sometimes, sometimes not. Right now it worked 3-4 times out of 10, i.e. it either works immediately and on more fingers or doesn't work at all. Similar results when I have tried a couple of times in the past.
gm007 said:
All you can do is a software repair with pc companion if this doesn't help it means a hardware issue.
Click to expand...
Click to collapse
I suspected as much. I have done the Pc companion repair and factory resets on the phone, but I'm still unable to even setup fingerprint now.
I will wait to see if MM does anything, and arrange for a replacement if it's still an issue.
Not bad going for a device just over a month old. Glad I didn't unlock the bootloader.
Sent from my E6653 using Tapatalk

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