On some rare occasion, when I turn on my phone the touch screen works and it let me unlock the phone but every time I get into the home screen the touch screen stops working. When I press the home screen the home button the touch screen works again. Then I turn the phone off and on again same thing happen. Restart and it works back normally. Is this a software issue with kitkat or is this a hardware problem? I am on stock rom. I hope someone know the answer to this weirdness or maybe I don't know something. Thanks.
hfl12 said:
On some rare occasion, when I turn on my phone the touch screen works and it let me unlock the phone but every time I get into the home screen the touch screen stops working. When I press the home screen the home button the touch screen works again. Then I turn the phone off and on again same thing happen. Restart and it works back normally. Is this a software issue with kitkat or is this a hardware problem? I am on stock rom. I hope someone know the answer to this weirdness or maybe I don't know something. Thanks.
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i get the same thing once in awhile. ever since KitKat. and i'm on a custom ROM to me its almost as if the phone is in some kind of wait state and i have to "kick" it to get it going. I've seen other in my ROM's forum talk of it. so now i know its not just our custom ROM, sounds like a KitKat thing..
Thanks. "Wait state" reminds me of finite state machine. Glad this isn't a hardware issue.
Related
Hello all,
I have a problem with my HD2's touchscreen. I've had the phone for awhile now and never had any problems. I've been using android from Sd for awhie and recently switched to NAND android.
I go to bed with a working phone and when I wake up, the touchscreen doesn't work. After trying to use it all day, it occasionly works. When I receive a call or text, the screen works just fine. I am abe to use it until the screen turns off then no more. This happens for each call or text. It also works just fine at first boot(until the screen is turned off.
Thinking that this was a software problem, I tried flashing different android builds, with the EXACT same results. I then wondered if it was a problem with MAGLDER, so I flashed back to a STOCK TMOUS rom, and stock SP, radio etc.
Even after going back to COMPLETELY stock, it now does the same thing in WINMO. Works just find at first boot until screen goes off, and works when I get calls and texts.
I'm now thinking that this is a hardware/digitizer problem, it just seems weird to me that it works 100% until the screen goes off and then not at all.
Anybody have any idea's or insights?
Thanks!
i've read a few similar threads (please search for them!) that indicate one possible cause...
your buttons strips at the bottom may be messing with the touch screen connections. i remember reading in one thread that the dude found a strong relationship between use of the on/off/endcall button and touchscreen failures.
you say it works...:
1. ...until the screen powers off
2. also works when you get an sms or call
in case (1), you have to press the endcall button to "wake" the device...so maybe the button puts just enough pressure to screw up the screen.
in case (2), the device wakes up automatically, so you never pressed the button that might cause the screen to screw up.
try to narrow it down like i've described. maybe your buttons are causing the problem. good luck!
Thanks for replying!
I did see the thread you were talking about though it did not seem to match my problems. However, today as I was working and pulling my phone out, It has started to look like that is the case. As of this afternoon, as long as I press any of the buttons other then the power/end call button to turn on the screen, the tuchscreen works just fine. When waking up the screen with the power/end call button, it does not work at all.
Yesterday and this morning, it didn't matter what button I pushed to wake up the screen, it was totally unresponsive.
So it looks like using the power/end cal button presses on my digitizer and causes problems.
And it's back to not working at all when I use any of the buttons, lol. Guess it's time to start looking into a new digitizer.
I've had a problem with my E900 since I got it with regards to the screen. I was hoping Mango might fix it but it doesn't seem to have.
Sometimes if I press the power button the screen backlight comes on (i.e. screen goes from off state to powered) but there is nothing on the screen. No amount of button pressing will cause the screen to show anything.
If this happens I have to turn the device off again (backlight then goes off) and try again. Sometimes it can take 2-3 times before it turns on successfully with the lock screen.
I also have this if an incoming call attempts to wake the phone and also alarms too.
Does anyone else have this issue?
I confirm this one popping sometimes. Not that often that it becomes annoying, but nevertheless.
Did you find a solution to this problem? I am experiencing it too and it is very annoying!
I've recently inherited one as well (E900 that is).
The one I have has been dropped, the backlight powers, but no drawing on the screen.
I've disassembled and re plugged everything (bugger stripping down!) but still no luck. I've done a VolUp+Down+Cam+power hard reset, and when I plug into PC Zune says setup needs completing (so it has reformatted) but still no luck.
I cant see anything fried, and no damaged ribbons as far as I can see, any ideas?
I sold the phone a while ago, and never solved the problem. I think it's a firmware issue.
PaulMdx said:
I've had a problem with my E900 since I got it with regards to the screen. I was hoping Mango might fix it but it doesn't seem to have.
Sometimes if I press the power button the screen backlight comes on (i.e. screen goes from off state to powered) but there is nothing on the screen. No amount of button pressing will cause the screen to show anything.
If this happens I have to turn the device off again (backlight then goes off) and try again. Sometimes it can take 2-3 times before it turns on successfully with the lock screen.
I also have this if an incoming call attempts to wake the phone and also alarms too.
Does anyone else have this issue?
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hi.
What do you mean "somethimes if I press power button"?
Is it pressed with purpose to lock the phone, press it to turn off phone (background slider shows to power off - on Mango and beyond version) or press it accidentally?
Cheers.
So, I did a phone reset. Unfortunately the issue is still present!
Sometimes when I press the power button to unlock the phone the screen is lit, but stays blank i.e. no lockscreen wallpaper, no nothing. The same happens sometimes when I get a phone call - the phone rings and vibrates, the screen is lit but stays blank.
When this happens I have to press the power button to put the phone into sleep mode and press it again to wake it up.
What I found is, when the issue occurs the screen is actually responsive. For example I can slid up and unlock the phone then I hear the unlock "pop" sound. It's just that nothing is drawn on it!
I was wondering if anyone else experienced the same behavior and found a resolution. Also I am not sure if this is a software or a hardware problem. If I could confirm it was a hardware problem I would call LG and have the phone repaired or replaced.
i have exactly the same issue as you, it gets really annoying.
i heard from someone online that the only way to resolve it is to replace the motherboard
billybrown said:
i have exactly the same issue as you, it gets really annoying.
i heard from someone online that the only way to resolve it is to replace the motherboard
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I am pretty certain this is a hardware issue. I am calling LG tomorrow and hopefully they'll take the phone for repair/replacement.
I sent my phone for repair. Today I got it back, and guess what?!
The issue is still present! It seems, they "couldn't reproduce" or something.
What should I do now?
EDIT: If anyone is interested, here is a video I just captured which clearly demonstrates the problem. http://youtu.be/38kF9RYs_bU
I'm sending the phone back for repair tomorrow with this video attached.
Hey, might not be an issue at all, but in the video, I saw that the two times you were able to get it to go blank you had your finger on or near the proximity sensor. I wonder if there is something that could be the trigger.
Just wondering if you can duplicated it or cause it only when you have the proximity sensor blocked, or if it truely is random.
You are right, it might has something to do with the proximity/light sensor.
On the other hand, this issue occurs even on incoming calls when the phone is placed on a table, screen up and nothing around the sensor.
Today, I visited my local carrier shop and left the phone for repair again. They told me, since this is a second claim they'll run it through the process faster, so I expect to get it back next week.
Will post an update.
UPDATE: My phone was replaced. Yesterday I got a brand new unit, yeah! It was stock wp 7.0. I plugged in my sim and used the phone the whole day, no sign of blank screen issues. Last nigh I installed all the updates (total 5 I think) up to OS 7.10.8107.79, FW 1.0.16.10. Guess what?! Same issue!
I am crushed
Hi
I have problems sometimes with touch buttons, back and menu buttons are usually put off and stop responding, I must restart the phone for it to work again. Anyone else having that problem? i rooted and flashed the phone but the problem is stil there
falluja said:
Hi
I have problems sometimes with touch buttons, back and menu buttons are usually put off and stop responding, I must restart the phone for it to work again. Anyone else having that problem? i rooted and flashed the phone but the problem is stil there
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...and screen can only be used with the pen? This is a problem i have.
Just switching ist off and on fixes the problem (i have not to reboot).
Seems to be a software problem.
No the screen works well its only the buttons
Absolutely no problems to report with mine???
Yes I am having this same problem as the poster described (back and menu buttons switch off)
Specifically happens after a phone call
Happens to my brothers phone as well and both phones are sourced from different suppliers
Think a software update may fix this? or should i send it back and buy another one?
Thanks
Pretty widespread problem it seems:
http://forum.xda-developers.com/showthread.php?t=1356115
I tend to believe it's software-based though
First I noticed that my Lock button doesn't work anymore. When I press it, nothing happens. I thought it's a bug or something so I flashed different Roms but the problem still exists...
it is not a hardware problem, because i can hard reset my device normally.
When the phone goes to stand-by mode, it stays off for one second and then it turns the screen and backlight back on. That runs my battery out quite quickly.
I have searched forum for this problem, but did not find any answer.
Is there a solution for this??
the same problem here!!!
have someone an idea?!
I've had the same problem with my Omnia i8000.
But my Phone will come back on only if I am listening to Music.
Does this happen to you while listening to Music ? If Yes, then just turn the volume one step down. Thats a workaround I've found for my phone.
has anybody fixed this issue on their omnia pro yet?
i am facing the same issue, the screen is always on as the lock key doesnt do anything....the only time the screen shuts off is when using the touch music player after 60 sec.(backlight setting when phone not on external power)......screen turns on when the song ends.....hard reset to factory settings doesnt fix the issue......plz help if u hv a solution figured out....thnx
SangisettyNaresh
Amazing... You are my lifesaver...I have been facing this problem since last one month.
Your idea worked for me but can you tell why this problem occurs? and this is a temporary solution...Is there any permanent solution to this problem?
Greetings to all. I had this problem for a while. I solved it with 2 programs - the first is AEButton and the second Smart Lock. I mapped the W&L button to "lock device"(AEButton). After that going to SmartLock ticked: Lock screen and then stand-by. In this way I used the W&L buttons as lock key. Worked for me, hope it works for you!
P.S. I am using custom rom without the touchwiz interface, I dont know if that makes any difference!
EDIT: It fixes the issue partly...the screen pops out every 20 seconds or so.... Seems to me it is a hardware problem. Flashing with different ROMs doesn`t seem to work.
Hello! Just bought an Optimus 7! Really good phone for the price!
But i got one problem! When im going to turn on the phone with the windows button its sometimes not responding!
Somebody else got this problem?
Yes. Happens to me all the time, but I always use the power button to turn on the screen so it doesn't bother me that much...
Sounds like a known issue.
techno-update said:
Sounds like a known issue.
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Same here. It must be a software bug because the button is always working when the phone is unlocked.
If you still hold for a while it works
One reason for the screen not turning on is that you may be blocking the proximity sensor at the top left of the phone. The reason behind that is probably to avoid turning on the screen when the phone is e.g. in a pocket.
for me the start button for screen unlock always works, but many times screen is unlocked and all black, the systems listen to the touch input but doesnt show nothing at all....it happens very often usually when the phone is hot...