[Q] My Xperia Z is controlling itself - Xperia Z Q&A, Help & Troubleshooting

Hi guys,
I recently got my Xperia Z back from repair. I had it in because when I pressed the power button to unlock it, sometimes the screen would stay black and I wouldn't be able to see anything, but I could still use the touchscreen.
So I got my phone back with a new LCD screen and it's been a week now and it hasn't had that problem at all, but I'm having another problem.
My phone is randomly controlling itself. When I unlock it, every once and a while it starts pressing all the buttons on the screen. Opening up the task manager, swiping left and right, opening up the camera, etc. Just going completely haywire.
So to fix it, I tried a factory reset, but that didn't work. Then I got a new update for android, and for about a day it worked perfectly but now it's back at it again and controlling itself, pressing all the buttons etc. I had an alarm set this morning and I couldn't even turn it off because of it.
It's completely stock, I haven't even tried flashing or rooting or anything like that, and I'm running Android 4.4.4. Model number is C6603.
Anyone know what could be causing the problem?

Wing126 said:
Hi guys,
I recently got my Xperia Z back from repair. I had it in because when I pressed the power button to unlock it, sometimes the screen would stay black and I wouldn't be able to see anything, but I could still use the touchscreen.
So I got my phone back with a new LCD screen and it's been a week now and it hasn't had that problem at all, but I'm having another problem.
My phone is randomly controlling itself. When I unlock it, every once and a while it starts pressing all the buttons on the screen. Opening up the task manager, swiping left and right, opening up the camera, etc. Just going completely haywire.
So to fix it, I tried a factory reset, but that didn't work. Then I got a new update for android, and for about a day it worked perfectly but now it's back at it again and controlling itself, pressing all the buttons etc. I had an alarm set this morning and I couldn't even turn it off because of it.
It's completely stock, I haven't even tried flashing or rooting or anything like that, and I'm running Android 4.4.4. Model number is C6603.
Anyone know what could be causing the problem?
Click to expand...
Click to collapse
there is some issue with touch calibration or some issue with the digitizer.

androidtweaker1 said:
there is some issue with touch calibration or some issue with the digitizer.
Click to expand...
Click to collapse
Well it happens before I even touch anything on the screen, so would that point to the problem being the digitizer?

Related

Power Button- slow?

i noticed recently that if i press the power button, it sometimes takes a really long time to turn the screen on. i know the hardware works because the backlight in the soft buttons turns on immediately, but the screen remains black for up to 10 seconds. this happens rarely. however, im fairly sure it isnt a software problem because ive wiped completely and installed a fresh rom and the problem seems to persist. perhaps i just recently noticed, and the problem was always there? does anyone else have this problem?
three threads above yours.
http://forum.xda-developers.com/showthread.php?t=681723
could be a hardware issue.
Mine does this every few days.. I am still on the stock 2.1 rom.
Mine also does this, I only noticed it after flashing Cyanogenmod 5.0.6. so I thought it might have been a bug. I also assumed it was a bug because the phone seems to act strangely when you are touching the screen and try to hit the power button.
Hopefully this isn't a hardware issue, I've had the phone since release.
Is anyone else experiencing similar issues?
It happens to me as well, but very infrequently. Maybe every few days... so it doesn't bother me enough to worry about it.
I'm on stock ROM btw.
I am leaning towards thinking this may be software related. A few minutes ago I was at the lock screen and tried about 50 times (yes I waited long enough after each press) and simply could not get the screen to turn off. I then tried long pressing the power button and, sure enough, each time it would bring up the shutdown menu (yes, over the lock screen). Must be a bug right?
Hmm, my problem's slightly different. Around half of the time, I have to press the power button twice to turn the screen on. Sometimes, pressing it the first time doesn't turn the screen on, had to press the power button firmly again.
This started only recently. On stock n1 and bought it during feb.
that means that your power button is dying, like many others' (including mine)
this is the first time, it takes 2 clicks to work....than it will increase.
Expect a repair soon...
Well i am having the issue other way around. i am not been able to put my phone in stand by mode by clicking on it and it is do a hard press then i get options to shut off the phone
any suggestions what might be causing it ?
I'm happy I haven't received this problem yet
-------------------------------------
i want my yogurt lol froyo time
negroplasty said:
Mine also does this, I only noticed it after flashing Cyanogenmod 5.0.6. so I thought it might have been a bug. I also assumed it was a bug because the phone seems to act strangely when you are touching the screen and try to hit the power button.
Hopefully this isn't a hardware issue, I've had the phone since release.
Is anyone else experiencing similar issues?
Click to expand...
Click to collapse
I am having the same issue and i wonder if you were able to find the cause for it. I have the same rom as you do on your phone
negroplasty said:
I am leaning towards thinking this may be software related. A few minutes ago I was at the lock screen and tried about 50 times (yes I waited long enough after each press) and simply could not get the screen to turn off. I then tried long pressing the power button and, sure enough, each time it would bring up the shutdown menu (yes, over the lock screen). Must be a bug right?
Click to expand...
Click to collapse
I have a similar problem. When I unplug the N1 from the charger, the screen comes on showing the lock screen, and I can't get it to turn off. If I unlock the phone, however, then the power button works normally. I don't think it was doing this until recently (I bought it in January the first day it was offered and am running the stock update1 ROM).
So here is my theory if the power button is a problem then it needs to act up both ways and not only one way. right now i can put the phone in sleep mode but i can wake it up. i will post the issues on the development forum and might be able to find an asnswer to it
So seems like the issues is because of Cyanogenmod 5.0.6 because since i have flashed another rom it is working just fine. i will be doing some more testing before i can be certain
Another problem I am experiencing is when I long press the power button, it pulls up the phone options menu but also turns off the screen. It's extremely frustrating as it does this quite frequently; right after I power on the screen again and unlock the device it works properly every time - so much so that I am convinced this is a software issue.
I am now running froyo, rooted with Cyan's minor root patch. I can also say for sure I experienced the same problem on CM 5.0.6, but it definitely occurred less frequently.
Am I alone here?
di2356 said:
i noticed recently that if i press the power button, it sometimes takes a really long time to turn the screen on. i know the hardware works because the backlight in the soft buttons turns on immediately, but the screen remains black for up to 10 seconds. this happens rarely. however, im fairly sure it isnt a software problem because ive wiped completely and installed a fresh rom and the problem seems to persist. perhaps i just recently noticed, and the problem was always there? does anyone else have this problem?
Click to expand...
Click to collapse
I just started having this problem after upgrading to 2.2.
I have this every so often. But sometimes wonder if it is flyscreen doing it
You guys should all just be running the app no lock to take the power autumn out of the equation.
Ahhhhh! I just need trackball wakeup!
I have a similar issue where my screen will turn on but will be unresponsive. When i turn it on and off, the backlight jut comes and goes. If it times out it won't turn back on for a bit(the backlight will come on still).
I just wiped my phone, hoping that'll fix it since it only started happening on a regular basis since I updated to Froyo

Buttons Not Working and severe battery Drain

Hi hope someone can help. Over the weekend my TD2 started playing up. All of the hardware buttons apart from the on/off button have stopped working. I also notice that if I turn the screen off with a short tap of the on/off button, after a few seconds it comes back on again. All touch screen functions are ok. It also appears to be draining the battery very quickly, to the extent that fully charged at bedtime (no bluetooth or wifi on and a stable 3-4 bar signal) it will be comppletely drained by morning. As far as I am aware the phone has not gotten wet at all.
I have also re-installed the office HTC rom, which made no difference
Any ideas??
So you reinstalled the stock rom and did a hard reset?
You can try Tarkim's Keyboard controller and see if your hardware keys can be mapped to a different function.
That would help eliminate hardware vs software issues.
I have the same problem. Also my backlight keeps working and won't go off. Can't perform a hard reset because my volume buttons(and all other hardbuttons accept the on/off) aren't working.
Searched for the solution but can't find it anywhere. Who can help me?
daanbrok said:
I have the same problem. Also my backlight keeps working and won't go off. Can't perform a hard reset because my volume buttons(and all other hardbuttons accept the on/off) aren't working.
Searched for the solution but can't find it anywhere. Who can help me?
Click to expand...
Click to collapse
Try clear storage app to HR.
Thanks for your reaction.
Yesterday I managed to put an official ROM on my phone.(latest from HTC site).
Problem only got worser. Phone gets complety stuck(directly after boot) in the volume screen. Sometimes its flashes back to the normal screen but only for 1 second. Buttons still aren't working so can't do anything with my phone right now( not even the hard reset methode you told me).
Started to think that this is really some hardware issue. Can't remember that water got in my phone or the phone felt really hard. Any solutions maybe?
Otherwise I think I just go to the store.
daanbrok said:
Thanks for your reaction.
Yesterday I managed to put an official ROM on my phone.(latest from HTC site).
Problem only got worser. Phone gets complety stuck(directly after boot) in the volume screen. Sometimes its flashes back to the normal screen but only for 1 second. Buttons still aren't working so can't do anything with my phone right now( not even the hard reset methode you told me).
Started to think that this is really some hardware issue. Can't remember that water got in my phone or the phone felt really hard. Any solutions maybe?
Otherwise I think I just go to the store.
Click to expand...
Click to collapse
One last thing you can try is a Task29 explained here.
Use your official rom (right click on .exe and extract the RUU_Signed.nbh and place in task29 folder, then connect device in Bootloader mode and run the Task29.exe. Follow the instructions in the link.

[HELP] Display glitches/black screen

Greetings,
I'm not experienced with android devices, so i thought i'd ask here first before trying to do anything.
Since a few months ago some weird things started happening to my X8 - random display glitches and blackouts at completely random intervals (sometimes one or even two a day, sometimes it can last two or more weeks w/o an incident, i haven't figured out any relation yet).
Glitches manifest in distorted view on screen - shifted up/down/sideways - or colored graphics artefacts - up to completely bizarre patterns of random-colored pixels covering the whole screen. Weirdly enough, pushing power button as if to lock the screen usually alleviates the issue, sometimes i need to do it few times to remove completely, but it works. Touchscreen works fine, but i need to tap the "right" spot on the screen, not where it's displayed on the screen ("right" as in where the element is when the screen is not glitching).
The other issue (may be related) i'm having with the phone is random screen "blackouts" - the screen goes completely black and the power button cycling doesn't help - but the phone still reacts to screen input (i.e. i can unlock the screen by dragging the slider, launch app, start/stop music playback and so on). I can see the backlight on, so it's definitely screen/gfx hardware issue, not backlight. If i try to reboot the phone, it hangs on either shutdown or boot up. Removing the battery, placing it back and booting the phone up doesn't help - it vibrates as usual, i see the backlight go up, but screen stays black and i can't interact with the phone even if i leave it there for a few minutes (which is more than enough for it to boot up - it usually takes ~30 seconds till full boot). Also the backlight won't go off. It usually helps to boot normally if i hit the phone with a palm on the back side and/or leave it alone for a while. This issue is much more rare (only had it three times), but it puts the phone out of service for a while, so it's an issue for me.
Now, the device info:
Sony Ericsson Xperia X8 E15i
015 baseband
10W44
Unlocked bootloader
Alfs8 kernel (2.6.29.6-Alfs v08a 24/03/2012)
GingerDX v026 ROM
No cpu tweaks done, cpu governor "ONDEMAND", cpu speeds 122-600.
The glitches started when i was still using the older version, GindgerDX v013 with locked bootloader, i have done factory reset and flashed a new version with new kernel (and unlocked the loader along the way), but apparently it did not help fix the issues.
I can't provide and screenshots/photos of the issue because the only camera i have access to at most times when it happens is my phone one and, obviously, i can't use that in this case
The question is: can i still try to fix it by myself (i can do it if it doesn't involve disassembling the phone completely - i don't have the screwdrivers required) by software tweaks or other techniques or should i reflash stock kernel/rom, apply for warranty and hope they find the defect and fix it? I really do like the phone. Or, maybe, you have encountered anything resembling these issues and may shed some light on what's happening.
Appreciate any input in trying to figure out and fix this.
Thank you if you have read all this even if you can't help me, cheers!
1st problem could be 'Screen Cut' issue which is solved using kernel without FPS Cap...
2nd problem usually happens on my phone with miniCM9 3.0.2 but shows splash and boot animation...
Can you see the splash screen and the bootanimation? Because my friends' Xperia Ray has the issue on official firmware... so it could be hardware damage...
Try unlocking the screen then press the power button then press it again...
and also try flashing the stock firmware... If it doesn't work... I think you should live with it...
Sounds like a hardware problem to me. Reflash stock kernel and ROM and full wipe and then flash a different ROM and see it it still happens. If it does I think it is advisable to send it to Sony for repair.
Sent from my E15i using Tapatalk 2
Thanks for your replies, i'll try reflashing the stock rom and see if it still happens.
@Lily48: no, no splashcreen or boot animation, just black screen and visible backlight.
I have the same problem and I checked it many times and my conclusion is....ITS A HARDWARE PROBLEM NOT SOFTWARE..
KASHYAP9 said:
I have the same problem and I checked it many times and my conclusion is....ITS A HARDWARE PROBLEM NOT SOFTWARE..
Click to expand...
Click to collapse
Well, notify me if you find a solution, thanks
Sorry for double post, but this is important update:
My phone died this morning with the permanent black screen syndrome. Until i rebooted i could use it to receive phone calls or even listen to music (i knew where to touch to activate the features). However it would not boot sompletely after restart, even if i leave it for ~hour. Connecting to flashtool showed that it does boot to a certain stage, but no GUI (for user interaction with haptic feedback) available - the flashtool does show that device connected with usb debugging enabled.
I reflashed the stock ROM, now it's apparently stuck in some sort of bootloop - it keeps on connecting and disconnecting. But the screen is still black, with backlight. If i remove the battery, replace it and just connect to pc w/o trying to boot on, it acts normally as if trying to charge - backlight activates for a few seconds if i touch a key and green led is lit, but still the screen is black.
I will RMA it tomorrow, thanks for help, hopefully i'll get a new one, or they'll repair this one so it does not glitch on me again. Anyway it was/is a good phone, i absolutely love it.
Wish me luck =]
Aessaya said:
Sorry for double post, but this is important update:
My phone died this morning with the permanent black screen syndrome. Until i rebooted i could use it to receive phone calls or even listen to music (i knew where to touch to activate the features). However it would not boot sompletely after restart, even if i leave it for ~hour. Connecting to flashtool showed that it does boot to a certain stage, but no GUI (for user interaction with haptic feedback) available - the flashtool does show that device connected with usb debugging enabled.
I reflashed the stock ROM, now it's apparently stuck in some sort of bootloop - it keeps on connecting and disconnecting. But the screen is still black, with backlight. If i remove the battery, replace it and just connect to pc w/o trying to boot on, it acts normally as if trying to charge - backlight activates for a few seconds if i touch a key and green led is lit, but still the screen is black.
I will RMA it tomorrow, thanks for help, hopefully i'll get a new one, or they'll repair this one so it does not glitch on me again. Anyway it was/is a good phone, i absolutely love it.
Wish me luck =]
Click to expand...
Click to collapse
It is a hardware problem and Sony Service Center is the last option you have.. if your X8 is in warranty period.
I did the same and they replaced its display with new one.
Hello, reporting back in:
Just got my X8 back, it really was a hardware problem. They changed the screen now it works as good as new =]
Thanks everyone for support

Touch screen problems

Hello, I have my moto G 2014 for about 2 weeks now (full stock, never even connected it to the PC). A few days ago sometimes when I lock my phone by pressing the power button the touchscreen becomes unresponsive. The side buttons both work but nothing happens as I tap the screen, I can't unlock it or shut down. Then, out of nowhere it starts to work briefly, and I can shutdown only, not unlock.
But this time it rebooted and remained unresponsive, I can input 2 of the pin numbers and then it goes unresponsive... RMA?
Thank you
This dont look like a problem before..... You seem to be the first one with this problem. Have you ever dropped your phone? Or installed something wierd? Can you also tell what you did before when this problem came?
The phone is imaculated, never droped it. The first signs were after I installed Swiftkey, the key to change between numbers and symbols was not responding. Now sometimes the screen is all unresponsive, other times the top bar can be accessed, other times the menu keys don't work. I did a factory reset, after much struggle to get to the Config. menu, rebooted to the same issue.
Mebseven said:
I did a factory reset, after much struggle to get to the Config. menu, rebooted to the same issue.
Click to expand...
Click to collapse
I wouldn't loose to much time, trying to hunt down the problem. Sounds like the digitizer is broken. Unless you use your phone only while connected to the charger. Most chargers will emit a low electrical field that makes it almost impossible to operate the touchscreen. If this is not the case, replace the device.
It's not connected to anything right now, the top bar and 3 menu buttons are working but the rest is dead, can't swipe the screen or select any app, not even the app drawer. I guess it's RMA time.
Yea seems like a good idea, its a great device. I hope your warranty is still working

[SOLVED]HTC One M7 thinks I use buttons, doesn't respond.

Hi all!
First of all, I'm not sure if I'm doing everything right here, so excuse me if I'm doing something wrong
I'm new.
I've had my HTC One M7 from aliexpress.com for 2 weeks and 2 days now.
Have had great fun of it, nothing seemed wrong, was working perfectly. There were some rumours about an unofficial android-version that was put on this phone, which might be the problem..
Everytime I turn the phone screen on it thinks I hold/doubletap/tap/repeatedly tap the home button, and sometimes when I power it off it thinks I hold the volume down-button and takes a screenshot.. When I finally get to type my 4-digit pin code, it unlocks, goes to home screen, does the same again. Seems like my phone thinks I'm using the buttons..
I've changed settings (in a legit official way via Settings) of my home button to Hold for menu, Hold and swipe up for Google Search, and double-tap for recent apps..
Have tried factory reset twice, have tried rebooting it over and over, have tried almost anything.. I'm at the point of buying a new phone now, because I fear that HTC will not help me because it's an unofficial version of Android.. Any suggestions?
Everytime I open an app it just closes it and goes to home, sometimes before it does that it opens recent apps.. After that it just freezes and I can't touch it. Sometimes after waiting a couple of seconds, I can tap the screen and maybe it's fast enough to open for example WhatsApp, and then it just shuts off and does what I just stated.
Really weird!
I'm quite desperate. Could a custom ROM (Cyanogen or Android lollipop) fix this perhaps?
Please, help
Gr Patrick
ExcesusNL said:
Hi all!
First of all, I'm not sure if I'm doing everything right here, so excuse me if I'm doing something wrong
I'm new.
I've had my HTC One M7 from aliexpress.com for 2 weeks and 2 days now.
Have had great fun of it, nothing seemed wrong, was working perfectly. There were some rumours about an unofficial android-version that was put on this phone, which might be the problem..
Everytime I turn the phone screen on it thinks I hold/doubletap/tap/repeatedly tap the home button, and sometimes when I power it off it thinks I hold the volume down-button and takes a screenshot.. When I finally get to type my 4-digit pin code, it unlocks, goes to home screen, does the same again. Seems like my phone thinks I'm using the buttons..
I've changed settings (in a legit official way via Settings) of my home button to Hold for menu, Hold and swipe up for Google Search, and double-tap for recent apps..
Have tried factory reset twice, have tried rebooting it over and over, have tried almost anything.. I'm at the point of buying a new phone now, because I fear that HTC will not help me because it's an unofficial version of Android.. Any suggestions?
Everytime I open an app it just closes it and goes to home, sometimes before it does that it opens recent apps.. After that it just freezes and I can't touch it. Sometimes after waiting a couple of seconds, I can tap the screen and maybe it's fast enough to open for example WhatsApp, and then it just shuts off and does what I just stated.
Really weird!
I'm quite desperate. Could a custom ROM (Cyanogen or Android lollipop) fix this perhaps?
Please, help
Gr Patrick
Click to expand...
Click to collapse
This is purely a hardware issue. Your home button is somehow always in "on" position. Given it's a capacitive button, it could be the digitizer or a scratch on the home button area
donkeykong1 said:
This is purely a hardware issue. Your home button is somehow always in "on" position. Given it's a capacitive button, it could be the digitizer or a scratch on the home button area
Click to expand...
Click to collapse
Any idea on how to fix this?
This is somewhere about what I mean, read my reply also.
This might even be closer to what I mean.
Should I just send it back to HTC or can I fix this myself, with your heroic help?
ExcesusNL said:
Any idea on how to fix this?
This is somewhere about what I mean, read my reply also.
This might even be closer to what I mean.
Should I just send it back to HTC or can I fix this myself, with your heroic help?
Click to expand...
Click to collapse
Seems like just the thing I wrote. Considering it's a hardware issue you could replace the screen-digitizer assembly by yourself if you are familiar with that kind of work. I tried once on my old Desire and fried the motherboard, so I don't have cojones to do it [emoji6]
donkeykong1 said:
Seems like just the thing I wrote. Considering it's a hardware issue you could replace the screen-digitizer assembly by yourself if you are familiar with that kind of work. I tried once on my old Desire and fried the motherboard, so I don't have cojones to do it [emoji6]
Click to expand...
Click to collapse
Thanks for assisting me. I will bring it to a Chinese or turkish guy around here who will do it for cheap

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