Black screen even when unlocked - Nexus 6P Q&A, Help & Troubleshooting

I have noticed the screen not turning on occasionally when phone is unlocked. This only seems to happen in the car when connected to BT, and phone is set in the holder. I can still make a call via car's BT dialer, but even then the screen wont come on.
Anyone else noticed the same? Any possible resolution?

Basically sounds like SOD. Could be something in your setup, but have no info regarding it.

Related

No LED on answer/hangup buttons on hinge

Hi,
When i first setup my Exec using personal mode, the answer and hangup buttons on the hinge woudl illuminate when a call came in (when the unit is closed like a laptop). Now i am using it in corporate mode, the LED's don't illuminate. They only illuminate when the screen is rotated into PDA mode.
I am assuming this is a reg hack. Does anybody know what it is? or has anybody else got this problem?
Cheers
Paul
They don't illuminate when the device is closed, only when you have the screen open or facing outwards.
hollinshead said:
They don't illuminate when the device is closed, only when you have the screen open or facing outwards.
Click to expand...
Click to collapse
And very annoying it is too - especially when both buttons look so similar when not illuminated. This must be hackable?
This has got to be one of the most annoying features of the exec.
Also i have found that if the device is closed, MSVC does not recognise anything you say when activated via BT.
I have never really played with the device in personal mode as the GUI is bollox so cannot comment on if the buttons light up or not when the device is closed. But what i do know is that when it is closed the screen is switched off as if the device is in standby mode, maybe this has something to do with it.
I try to memorize the position of the green button in relation to how I always hold the phone and feel for it like a Braille board. So far I get it 75% of the time.
is anybody using the 'Personal' install on their exec? can they confirm if the LED's are illuminated or not when the phone rings when it is closed?
Cheers
Paul
Someone who's actually opened the Universal may be able to confirm this, but I suspect that the answer/hang up buttons on the hinge don't actually have LED's. I believe that they simply use the light from the screen's backlight to illuminate. As near as I can tell, they're only on when the screen backlight is on.
If that is the case, then there probably won't be a way to get them to illuminate when the case is closed, unless someone can figure out how to get the backlight to stay on when the case is closed (which would also be a big battery waster)
Brett
Yup, i can confirm this. I've just removed the cover on the top of the hinge. There is one wrapped cable coming out of the base at the right hand side. This then splits off, the main part goes up into the pivot hole, and a thinner wrapped wire brakes away from this and attaches to a small pcb which has the buttons and the LED's mounted on it.
Yes, the buttons are only illuminated when the backlight is on, but the brightness of the buttons remains constant even when the backlight brightness is turned down.
Cheers
Paul
As far as I see it, even if the backlight has to come on that wouldn't be a problem - after all, the phone is waking up in order to ring. I also often open up the screen slightly to see who's calling, then close it and press the answer button - therefore switching on the backlight initially would actually save time!
Maybe somebody knows of a "wake-on-ring" hack :lol:
I've just noticed it with my new Qtek 9000 and I was very worried, because I thought my device is broken.
But now I know this is "normal", but it's very annoying :?
I wish I had this problem! .. since yesterday my JJ seems to have those lights permanently on even when I switch the device off
Guys, I've made a program that will keep the hinge leds on all the time.
Actually this is an accidental discovery for a program I'm working on for this thread:
http://forum.xda-developers.com/viewtopic.php?t=37201&highlight=
Those guys want to be able to use the keys and phone functions with the lid closed.
I'll post more in that thread, but basically closing the lid puts the hardware keys in a special state such that they are not responsive at all until the device is woken internally (eg by an incoming phone call). Actually, can someone confirm that the hinge keys work when a call comes in but the lid is closed. I presume they must, since they don't do anything else!
So, the hinge lights are on when the screen is on. But the screen is switched off when the lid reaches about 10 degrees to closing. But the hinge lights can be kept on nevertheless
Grem: are you using TCPMP or a similar program to play music etc in the background? Anything that tries to keep the phone "on" when the lid is closed will keep the hinge lights on.
V
Hi vijay555
I've actually just done a complete cold re-boot and reflashed to the original i-mate factory ROM to see if that would help, then came here in search of anyone having a similar issue.
It started yesterday, i suspect I've had an internal meltdown somewhere, plugged it into sync, noticed a few minutes later it had randomly done a warm reset and appeared stuck on the blue i-mate screen, picked it up and the sucker was hotter than an AMD without a heatsink! I suspect it's warranty time for this unit
Grem, that's worrying. What were you doing at the time? What brand/operator etc is the phone? It might be worth posting batch numbers or whatever for people that have this kind of problem so we can identify if some are worse then others.
V
It's an i-mate straight from the wholesaler no particular operator. Had it a couple of months, have seen other reports on the forum here which sound perhaps similar in that they've overheated.

G-off Display

"Description:
With G-off display you can turn off the screen by rotating and holding the phone upside down and holding it like that for a second.
To save battery while listen to your favorite music, simply point your phone downward, light off. All background processes remain.
Require G-sensor found in the latest HTC devices like Diamond / Pro / HD, etc."
Download
Just what I need! but...
Hi
This is a nice app that i've wanted. I know I could use Changescreen as it has a similar feature, but a standalone like this is more preferable for me...
But I just can't download from Rapidshare...
Is it possible to load the .cab here since its only 345kb? or a mirror to somewhere else...
Anyways, Thanks for pointing this App out...
bulletproof_78 said:
Hi
But I just can't download from Rapidshare...
Click to expand...
Click to collapse
I haven't got any problem downloading
thanks a million bro...
Works like a Charm!!!!
Installed on my TP doesnt seem to work and no progam icon to make any type of changes?
great idea. tried on my Omnia, works fine. but screen powers on only with Power button
installed on my touch pro, but doesnt seem to do anything any ideas, would really like to have it working am on WM6.5 if that makes any difference...
cheers!
Installed on my Diamond
it's ok
After a call is not working so
only works after soft reset.
Anyone same problem? solution?
Thejackal_71 said:
After a call is not working so
only works after soft reset.
Anyone same problem? solution?
Click to expand...
Click to collapse
Same problem here. I have to kill it with task manager and run it again It's faster then softreset...
Hello
how about battery drain pls?
not working on HTC Rhodium (TP2) - also I can't see it in programs, etc. Do I need to do anything else after install?
I got a question are there any options? like on conference call (when using loud speakers - device is upside down), will it ignore the g-off? Because I am not sure what would happend if I would press POWER BUTTON in the middle of the call just to get the screen back ..
Not working in my Touch Pro, too
Using latest WinMobile 6.5.21935.
I also did a softreset after installation!
Mashe said:
not working on HTC Rhodium (TP2) - also I can't see it in programs, etc. Do I need to do anything else after install?
Click to expand...
Click to collapse
You don't see it. But it is there. Go to the Program Files and the directory with the same name. Click once on it, and tune the device upside down. It will switch it off.Not ON again.
You can link to it.
I got a question are there any options? l..
Click to expand...
Click to collapse
No options. no nothing! It does work on my TD 1
origin of g-off display
Beware! I am NOT the programmer. I don't know who is either. I just found it.
btw ChangeScreen has a "display off" option too.
worked on the tilt 2
it needs dot net compact framework 3.5 and then it loads on startup... closing the title bar that comes up doesn't seem to stop it from working. however, having said this, i can't say that perhaps the tilt 2 didn't have the behavior before i installed this... it took me a while to realize that upside down doesn't mean face down, which is what i had wanted. but having said that, turning it upside down works great because you can put it in your pocket upside down (which basically you might do anyway).
also, indeed, to get it back on, one has to push the power button. but that's good in case the device moves out of tolerance for downward position it won't be going on and off unintentionally--except that even after the screen is already off it will keep executing--i know this because it vibrates when the screen goes off as well, and if i take it out of upside down position and then put it back without turning screen on again, it will vibrate again. this said, walking with it in a pocket didn't seem to keep triggering it, so overall this is a really cool hack.
now for figuring out why my t2 doesn't turn its speakerphone on when placed face down during a call (i was thinking face down should always turn the screen off by way of proximity sensor--which does work on my device because during a call holding finger over ear speaker turns off the display--just doesn't turn speaker on). wait... just realized... if it did then it would have to assume that just putting it to the ear should turn on speaker. so, i'd say what we have here is a challenge... integrate the proximity sensing with the g-sensor to always turn off the display when face down on a flat, reasonably level surface-- and during a call turn on the speaker too.
if this can be done, then combined with the g-off existing functionality it'd be really sweet--i wouldn't have to turn it upside down _before_ placing it flat on a table while listening to music. and the proximity could help make it less worrysome to just automatically turn the screen back on when picked up.
worked on the tilt 2
it needs dot net compact framework 3.5 and then it loads on startup... closing the title bar that comes up doesn't seem to stop it from working. however, having said this, i can't say that perhaps the tilt 2 didn't have the behavior before i installed this... it took me a while to realize that upside down doesn't mean face down, which is what i had wanted. but having said that, turning it upside down works great because you can put it in your pocket upside down (which basically you might do anyway).
also, indeed, to get it back on, one has to push the power button. but that's good in case the device moves out of tolerance for downward position it won't be going on and off unintentionally--except that even after the screen is already off it will keep executing--i know this because it vibrates when the screen goes off as well, and if i take it out of upside down position and then put it back without turning screen on again, it will vibrate again. this said, walking with it in a pocket didn't seem to keep triggering it, so overall this is a really cool hack.
now for figuring out why my t2 doesn't turn its speakerphone on when placed face down during a call (i was thinking face down should always turn the screen off by way of proximity sensor--which does work on my device because during a call holding finger over ear speaker turns off the display--just doesn't turn speaker on). wait... just realized... if it did then it would have to assume that just putting it to the ear should turn on speaker. so, i'd say what we have here is a challenge... integrate the proximity sensing with the g-sensor to always turn off the display when face down on a flat, reasonably level surface-- and during a call turn on the speaker too.
if this can be done, then combined with the g-off existing functionality it'd be really sweet--i wouldn't have to turn it upside down _before_ placing it flat on a table while listening to music. and the proximity could help make it less worrysome to just automatically turn the screen back on when picked up.
sorry for the duplicate post above--tried to edit, then hit save by accident
edit... i just tried screenchange and it in theory seems to do exactly what i want, but in practice, with 2.78 and any sensitivity level and appropriate no light option checked, it turns off the display even if there is light (and lots of it to be sure). i hold the device upside down above my head and the display goes off. i'm not covering the proximity sensor. my proximity sensor does work when in a phone call. i tried rebooting. i think the proximity sensor may be off somehow on my device...maybe htc only wants it on in a phone call? i will have to see if screenchange will work right with the device in a phone call... further posts will go over with screenchange.
btw, regarding the forum... its annoying that my edit made a whole new post in the first place.
cool!!!thanks

Help. Atrix screen won't turn on

My Atrix's screen randomly stopped displaying anything. You can see that the backlight turns on and off but nothing ever displays. The screen isn't physically damaged and the touch sensor is also functioning just fine. If I plug it into my Lapdock - I can use the phone with no issues, I'll just never get any sort of display on the cellphone's screen (Outputs to Lapdock's screen just fine).
Any ideas or suggestions?
are you able to adjust screen settings when you're on lapdock? (and does this change anything?)
It does sound a hardware issue with your screen... maybe others on here can offer more help
Just tried playing around with the settings - no luck
Do you think maybe the display cable somehow disconnected? I'm not sure how the Atrix is designed but I think you'd normally have a separate cable for backlight, touch, and display. Maybe I'll try disassembling it and report back.

[Q] Screen turning black on calls

Randomly when I'm in a call regardless if that's skype or a regular phone call when I go to do something else on my phone it turns to a black screen and almost immediately changes back. Rinse and repeat. Can someone help me fix this issue? Thanks.
Commies said:
Randomly when I'm in a call regardless if that's skype or a regular phone call when I go to do something else on my phone it turns to a black screen and almost immediately changes back. Rinse and repeat. Can someone help me fix this issue? Thanks.
Click to expand...
Click to collapse
did you check in the menu Settings > Call > Turn off screen during calls?
..
How would I do that? And to the first post, it is off.
..
No need to be an asshole about it. I did look in the settings menu, obviously I couldn't find it. I've searched through the forums as well on google. Maybe I'm not seeing it but the only thing I've found is something through ABD and I'm not currently rooted.
Did you install any app that may interfere with the sensor? E.g. Smart Cover app...?
I did not.
Still having this issue. Screen flickers. Mostly on skype.

Unintended taps during call: how to prevent them?

Hi!
I"m not the only having the problem: during a call unintended taps takes place while screen waking up is not registered during the call. So, you see, I'm not sure a proximity sensor is the reason of the problem as far as screen is kept turned off.
I have tried to reproduce the issue by fingers, but wasn't lucky.
Have you any ideas how to eliminate the problem?
I mean not-rooted official up-to-date stock firmware use case.
And, by the way, I haven't found proximity sensor calibration in service menu for A1. Is it placed somewhere into another place?
That happens to me all the time too.
Yup, me too. While in call I sometimes unknowingly turn on the flashlight and probably look like an idiot. ?
With the rn3p I would constantly end up muted. With mi a1 the problem is much less although I've noticed that numbers are still pressed. I've learned over time to switch to keypad so when something gets touched it's not the mute and at worst the other person receives some key tones.
I also have this problem a lot. I mute myself 9/10. To bypass to problem, I just lock the screen before placing it against my ear.
Yes, a simple soutions is just when you call someone, imidiately press power button to lock the screen (no password or fingerprint requred to unlock)
dejano said:
Yes, a simple soutions is just when you call someone, imidiately press power button to lock the screen (no password or fingerprint requred to unlock)
Click to expand...
Click to collapse
That's what I've been doing. That and pushing the top part of the mobile on my face just to make sure. lol
Oh and use the Feedback app and send it to xiaomi and hope they fix it on the next update.
i had this problem too, has it been fixed in the latest of updates? its a really annoying bug.
You must be doing something wrong. This issue "must" have been in all smartphone operating systems in the world, if what you are saying is the truth.
There's no way to drop the call, or press anything while you are calling someone. The proximity sensor doesn't allow turning on the screen when it's close to an object. The gyroscope also turns off the screen when you rotate the phone vertically during a call.
But all I can say is that it's not a bug, this is how is your phone knows when you are in a call, and you put your phone to your ear, or when you use your "speaker", and so the phone knows it's supposed to used it's speaker to transfer voice through the call.
Beside my poor English, try to move your phone a bit vertically before putting it close to your ear.
same problem here, also disabling ambient display... i also tested proximity sensor with some apps and it seems ok
I have that problem too from the beginning. None of the updates came up with a solution
Same here: I mute, turn on the flashlight or even open apps sometimes with my face. And thanks for the input @SmallTarzan but i know how to operate a smartphone and did not have any similar problems for the last five years. Apart from that annoying bug it's a great phone.
Wow, i dont know of this bug since i'm using custom rom from very beginning.
Try to make a call then use your hand to cover top part of the phone, screen doesn't lock??
I am having this issue too and it is really annoying
And still nobody came up with a solution???
It's easy to understand why it happens.
Proximity activates while you're in a call, but apparently the touchscreen digitizer remains working (even though the screen is off). Touching the digitizer with your ears or cheeks activates different actions while you think your screen is locked.
I can't believe how this issue is not fixed yet! That's a shame!
Same applies for the network fluctuation issues. You need to either choose 3G or 4G to avoid loosing your data connection.
Xiaomi that's more than LAME! You need to be ashamed of yourselves.
It happens to me quite often, although not always.
It's more frequent during long calls. If the call lasts for less than a minute or so, it doesn't happen.
Proximity sensor works, and screen turns off as soon as I put it at my ear.
Keyboard is off and not responding for a while. Then, all of a sudden the phone comes alive.
In my case it's not the torch. What I activate unknowingly is the handsfree loudspeaker, which can be even more embarrassing, sometimes.
Maybe it's because I am left-handed.
In an attempt to have the proximity sensor fully covered by my face, I tried to make calls by holding the phone with my right hand, but to no avail, after some time the screen wakes up regardless of everything.
Happens to me too. Although I did notice some differences regarding the position of the phone on my ear or which side of my head I put the phone on, I started pressing the power button long ago to turn the screen off. It may not be ideal, but it takes care of it.
AlaiSalaam said:
Happens to me too. Although I did notice some differences regarding the position of the phone on my ear or which side of my head I put the phone on, I started pressing the power button long ago to turn the screen off. It may not be ideal, but it takes care of it.
Click to expand...
Click to collapse
Try this app, some users say it helps.
https://play.google.com/store/apps/details?id=ss.proximityservice
Any fixes yet?
simontol said:
Any fixes yet?
Click to expand...
Click to collapse
None, same sh**

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