Screen not turning on after phonecalls... - G2 Q&A, Help & Troubleshooting

My phone has been temperamental lately. Sometimes when there is not enough light in the room, the screen will immediately turn off (I am aware that is supposed to be a feature to combat a false "knock on" while in your pocket - but this is far worse than that. even in dim light). I can also replicate a problem of having my screen NEVER turn back on. All I have to do is make a call, or call voicemail and its like the phone just locks up. cant do anything but hold power for 10 seconds. Ive booted into safemode to no avail.
Only thing left to do is factory reset... but im starting to think its physical issue caused by me dropping it
has anyone had similar problems?

Are you running stock or custom ROM? I've experienced, and heard of many other people having this problem on various 4.4 Roms. I've not had the issue when running stock however.
Sent from my VS980 4G using XDA Premium 4 mobile app

I've been having the same problems recently...so I was running it previously with stock + G2 Xposed, then I dropped it and the screen shattered. Some functionality was lost as you'd imagine, but it was all to do with the screen lacking sensitivity in places (what was left of it anyway). I got the screen replaced and then started having all these problems.
So for me, the screen will sometimes turn off as soon as I turn it on (this can be counteracted by spamming either volume button - not ideal, but it works). The screen will also sometimes turn black after making/receiving a phone call, and though I can still take the call, I can't turn the screen back on unless I either receive another call (this doesn't always work) or just reset the phone with the hard keys. I did a factory reset and this hasn't sorted the problem out at all. I've scoured the net for a solution and haven't come across anything as of yet...

Related

Backlight dims, power button doesn't work properly...

I have had the Touch 3G for nearly a year now and for the last 3 months I have had this recurring problem which is fixed with a hard reset but will recur again after about 6 weeks. The symptoms are:
1. When turning on, the backlight dims just before the HTC flash screen and startup sound (when it says "Smart Mobility")
2. Touching the screen doesn't bring the backlight back on.
3. Pressing the power button doesn't turn the screen off from this dimmed state, but after pressing touching the screen will turn the backlight back on.
4. Pressing the power button again will now turn off the screen, but pressing it again won't turn the screen back on! If I call it from another phone, the vibrator goes on but it doesn't ring, the screen stays off and you can't answer the call. If you hang up on the other phone it keeps vibrating and you need to do a soft reset to stop it.
If I do a hard reset the symptoms are gone and reinstalling the exact same software doesn't cause the problems immediately but withing a month or so it happens again. All I did just prior to these problems was use TomTom a bit more than usual, but otherwise nothing different. I have used TaskManager to see if there is anything weird running in the background but it all looks fine. I have had a cursory look through the registry but also can't find anything?
Any advice would be appreciated.
pdiaz said:
I have had the Touch 3G for nearly a year now and for the last 3 months I have had this recurring problem which is fixed with a hard reset but will recur again after about 6 weeks. The symptoms are:
1. When turning on, the backlight dims just before the HTC flash screen and startup sound (when it says "Smart Mobility")
2. Touching the screen doesn't bring the backlight back on.
3. Pressing the power button doesn't turn the screen off from this dimmed state, but after pressing touching the screen will turn the backlight back on.
4. Pressing the power button again will now turn off the screen, but pressing it again won't turn the screen back on! If I call it from another phone, the vibrator goes on but it doesn't ring, the screen stays off and you can't answer the call. If you hang up on the other phone it keeps vibrating and you need to do a soft reset to stop it.
If I do a hard reset the symptoms are gone and reinstalling the exact same software doesn't cause the problems immediately but withing a month or so it happens again. All I did just prior to these problems was use TomTom a bit more than usual, but otherwise nothing different. I have used TaskManager to see if there is anything weird running in the background but it all looks fine. I have had a cursory look through the registry but also can't find anything?
Any advice would be appreciated.
Click to expand...
Click to collapse
Sounds like it's going all haywire. If you've had it less than a year, I'd send it in real quick. Sounds more like a hardware problem.
I don't think it is hardware as a hard reset fixes it...it just recurs down the track. I have done a hardrest and reinstalled all my apps and it is working great again but I was wondering if I should be checking somewhere in the registry for an aberrant setting. I am u using a backup image program so at least when it happen again I an restore my system more simply.
But then again, all the symptoms you mentioned point to a hardware defect. You could try to find a tweak, but like all electronic devices, it's the luck of the draw. Try emailing HTC and see what they say.

Random vibration??

The past few weeks I've been noticing that my DHD often vibrates at random times, when it should not do this at all.
It just vibrates (in stby mode), nothing else but I always think I'm getting a call or a text, which is pretty annoying.
Sometimes it vibrates just once, but also sometimes it vibrates 3 times, very fast and hard. Last night it even woke me up...
Anyone having the same issue?
Sent from my Desire HD using Tapatalk
Had this today when I bought it out of standby. Thought I had a text or email or something but there was nothing. Never noticed it happen when in standby though.
This happens regularly on mine too! its frustrating! you think you have a call or a message but you dont! :s
Its probably caused by your signal going from hspa (3.5g) to 3g to gprs
Sent from my Desire HD using XDA App
Isn't this called Blackberry syndrome? Imagining your phone vibrating, just so you can check it!
Seriously though, I dont have this on my DHD. It was present on my Hero though. I think its your phone getting lonely because your not using it.
If you press the volume rocker right in the middle it will vibrate 1 time and sometimes it will do 2 quick vibrates following the first one. This is probably not related to your case but it fits under the random vibration for other that might not know about it.
I noted you get a vibration when you signal goes out, and when it comes back again.
it does happen on mine too...
but i think i know the cause... its usually after using the volume buttons when it does it
but after installing CM, it doesnt do it anymore... i think its something to do with stock ROMS (mainly sense)
+1 more for that, i thought i was going mad when i first noticed it, but after reading this im feeling a bit more sane,
stock rom btw
Mine does it too. I'm using Custom Modaco Rom. When I go to unlock the phone it vibrated but not all the time. Never in my pocket though. I thought it was 3g watchdog playing up but other people getting it too so not that. It did it just now reading these posts hope it doesn't get worse.
Sent from my Desire HD using XDA App
Mine does it too. Got used to it now though.
Mine does this, but I know when it does it and why.
Usually it's either when unlocking the phone, or pressing the power button to lock it.
The reason why? It's because I have fat hands and accidentally press the volume down button when using the phone, causing it to go into vibration mode (which makes the phone vibrate once to let you know).
It's confusing, but entirely my own fault.
That's kinda diffirent from what I'm having. Mine does this without going into vibration mode or anything elsr for that matter. It just vibrates, even when locked and when the screen's off...
Just noticed that it does indeed have something to do with the volume buttons. Just lock your phone, press down both of the volume buttons, unlock it and then you will feel the 3 vibrations
I've noticed mine vibrates when launcher pro crashes, happens while i'm listening to music and try changing the volume sometimes, every time it happens the next time i unlock the phone launcher pro has to restart.
Although I have noticed it some times vibrates when I try to lock or unlock the phone and accidentally hit the volume buttons, not sure what happens there though.
EDIT: Just been trying to lock and hold one of the volume buttons, I've noticed it locks up for a second or two, so it's most likely something crashing I think.
Really sorry to bump a thead from a few weeks ago - but has anybody had any luck with resolving this?
This is the only thread I could find on the matter, and it's becoming a big annoyance for me. It's NOT when I go into vibration mode or anything, it can be anytime - even when the screen is off.
matthiasdeblaiser said:
That's kinda diffirent from what I'm having. Mine does this without going into vibration mode or anything elsr for that matter. It just vibrates, even when locked and when the screen's off...
Just noticed that it does indeed have something to do with the volume buttons. Just lock your phone, press down both of the volume buttons, unlock it and then you will feel the 3 vibrations
Click to expand...
Click to collapse
I just tried this and you're right - the three vibrations. Perhaps it's by design but I can't see why.
Anyway it's nice to know how to do it on purpose; mind you I used to get it all the time with my old cheap case, with my new case it's never done it "by itself". It seemed a bit odd but I assumed the case was "pressing" both volume buttons when on standby from time to time (makes sense).
I've noticed when i'm putting the phone in my pocket (or out), i tend to grab it on the top with the volume buttons. And yes, it does vibrate when i accidentally press them.
Try it yourself.
Regards, clumsy long fingered dude.
Mine used to do this as well. It would be sitting on the desk not touching anything, screen off and it's just idling doing nothing on stock sense rom, then it would just vibrate randomly a few times. It was a bit spooky and it kept doing it randomly :/
It has since stopped doing that, no real reason I can see why, I have flashed LeeDroid but it stopped randomly vibrating before that.
I'm on AR HD and it's still doing it.
I'm not too bothered, but a fix would be nice.
If I keep randomly pressing buttons on the phone, it will make random vibrations. Sometimes one, two or three. I don't have to press the power button, the phone screen can be turned off, and the phone doesn't go into silent/vibration mode either.
I just played about with the volume buttons now and I got a bit of lag on my phone, lasted for about 15 seconds then went away...

Screen blank on power on

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?
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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

Screen turns on while I am on the phone and my cheek turns off call. What to do?

I am sooooooo tired of this.
When I had 2.2 I had no issue, but, ever since I upgraded to Gingerbread (2.3) the screen will just turn on out of no where while I am on the phone and a lot of times my cheek will turn off the call or sometimes mute the call. It is so darn annoying.
Is there anything that can be done to fix this issue? I am sure I can't be alone with this.
Odin back to 2.2 and confirm that it is software and not your sensor that has gone bad.
Sent from my SPH-D700 using xda premium
My wife and I have the same phones and she compains of this too. I never have an issue with this on my phone. But, she can use my phone and have this problem. She also said she never had this problem on froyo, only after the gingerbread update.
I've tried installing several proximity sensor apps that are supposed to lock the phone when you put the phone to your ear. But not had the luck witht them that I was hoping for. The phone will lock, but the dialer stays on top of the lock screen. You are only taken to the lock screen after you hang up and the dialer goes away. Please let me know if someone has a solution like this that works!
I think the difference is how she holds the phone to here head. I've noticed her ear doesnt complete cover the proximity sensor all the way. She also likes to hold the entire phone screen tight to her cheek. I've tried to encourage her to hold the phone a little different, but she would rather that it just work for her. She also wants me to restore her phone back to froyo. I hate the idea of that.
Sent from my SPH-D700 using XDA App
also make sure your screen is clean. perticaly around sensor. had a problem with screen not turning off when on phone once and as soon as cleaned screen problem went away.
Just press the power button when your on a call so ths seen won't turn on
Sent from my SPH-D710 using xda premium
Yes, that's a good suggestion, but that wont always keep the screen off. I agree that it *should*.
To test, I call my voicemail.
Putting my finger over the proximity sensor will cause the screen to turn off. Now, lightly pressing the camera button to its half way point caused the screen to turn on. Pressing the volume buttons also turns the screen on. So, overly gripping the phone will turn on the screen.
Next test, turn off the screen with the power button. First call to VM, turn off screen with power button, screen stays off while I try to press volume button, but turns on with half press of camera button.
Seconds call, turn off screen with power button, screen turns on when pressing volume or camera button.
I continued making a few more test calls with these same mixed results. Finger over the proximity sensor always turns the screen off if it was on previously. I just can't get the screen to stay off during a call for my wife. I've tried to convince her she just needs to use a BT headset or wired one for long phone calls. She doesnt care for the solution. LOL.
Thanks,
Smoke.007
Sent from my SPH-D700 using Tapatalk
I should also mention I'm on CleanGB 1.1.2 EL30 modem. This problem happened for her when she was on Sprint's stock GB rom too.
Thanks,
Smoke.007
Sent from my SPH-D700 using Tapatalk
I find that the proximity sensor doesn't work well through hair. if i get a little hair in front of the sensor it would turn on and my cheek would hit end.
My proximity sensor stopped working on CM9, but works just fine on a TW rom (CleanGB). It's not a hardware issue that I assumed previously. Ditto autorotation...
Its not your phone or apps, its Gingerbread for the epic. It has done this since day one for me and others. It particularly happens when you get a text message while on a call. The only thing you can do is if you see it light up, just pull away from your face and then back to it and it will go back off.
I upgraded both our phones to Cyanogenmod 9 beta 1 and she hasn't complained about the proximity sensor problem yet. I think it's almost been 2 weeks. Otherwise, she was about to throw her phone out a window because she was so frustrated.
I've noticed the sensor is setup so there is some delay when turning the screen on and off. So, having the screen come off your face for a second or switching ears quickly, won't aways cause the screen to come back on. So far so good. Plus, I LOVE ICS. It's been a perfect daily driver!
Cheers,
Smoke.007
Sent from my SPH-D700 using XDA
When call is connected go to home screen then push power button

Screen won't turn off during phone calls

I use my phone a ton for calls , imagine that .
Lately when I put a call on speaker, the screen will not turn off. It will not time out and even if I press the power button to shut the screen off manually, it just comes right back on.
Has anyone else experienced this and if so have you been able to correct it?
p.s. this has only been happening in the past week or so and I can't think of anything I did or any updates that would have caused this.
Thanks
I'm experiencing this same thing. Tried multiple things and even did a hard reset and the issue still persists. Very annoying.
I found a workaround where if I come out of the phone app, then I can lock the screen.
got the same thing. i read something on AC( think it was) regarding the calendar notifications not allowing the screen to go dark too. i wake up, my phone is super hot if i have an all day appt with a notification. did yall find a fix to this? the other forum mentioned possible connection to samsung pay.
Having the same issue. The screen does not turn off when holding the phone to my ear or when I'm using bluetooth headset.

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