Database Develop

Power button problems

I can't see any similar problems on the forum, so can anyone help?
Yesterday my Kaiser's power button stopped working. In the middle of the day, not doing anything with it, installing anything or changing any settings. I took it out of my pocket and the screen was on with the power off dialog box showing (I normally keep it on standby in my pocket) The power button wouldn't put it into standby, and holding it wouldn't power it down. Intermittently the power off dialog appears on screen, if I click yes the device restarts (doesn't stay off). Everything else seems to work normally still. Soft resetting works normally. All the other buttons seem to work ok. I've tried a hard reset, but that made no difference.
Anyone else have anything like this?

no but i think ur power button seems to be stuck.. take it to ur local att store and see if they can help u out or try pressing and see it becomes unstuck.

omk298 said:
I can't see any similar problems on the forum, so can anyone help?
Yesterday my Kaiser's power button stopped working. In the middle of the day, not doing anything with it, installing anything or changing any settings. I took it out of my pocket and the screen was on with the power off dialog box showing (I normally keep it on standby in my pocket) The power button wouldn't put it into standby, and holding it wouldn't power it down. Intermittently the power off dialog appears on screen, if I click yes the device restarts (doesn't stay off). Everything else seems to work normally still. Soft resetting works normally. All the other buttons seem to work ok. I've tried a hard reset, but that made no difference.
Anyone else have anything like this?
Click to expand...
Click to collapse
I'm having the exact same problem right now. The power button definitely seems to be stuck. Can't figure out how to unstick it

About a week ago I had a similar problem.
The power button and the photo button stopped working. I couldn't turn the the device off or set it to standby.
Had to soft reset and after that it was ok again.

Draqula said:
About a week ago I had a similar problem.
The power button and the photo button stopped working. I couldn't turn the the device off or set it to standby.
Had to soft reset and after that it was ok again.
Click to expand...
Click to collapse
What do you mean by soft reset? Just pushing the little button at the botttom?

bTrizzy said:
What do you mean by soft reset? Just pushing the little button at the botttom?
Click to expand...
Click to collapse
Yep thats the ticket.

thetruth1985 said:
Yep thats the ticket.
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Click to collapse
Well that didnt work! Any other solution?

Is it possible to unmap the power button and map that question to another button???

White screen of death after starting?

Hello
After opening the slider the screen went black on my droid 3. I could not power it on any more with the power button.
So I pulled out the battery and pressed the power button after putting the battery in its place. The result was an almost white screen with very little coloured spots.
Every time I press the power-button that happens. After that I can not power off the droid with the power button I have to pull the battery out.
After some hours of testing and droid started occasionally. I used it for some minutes and pressed the power button. The screen went black and I could not wake the phone up by pressing the power button.
I pulled out the battery. After putting the battery into the device and pressing the power button I had the white screen again.
I tried
-- Power + "m"
and
-- Power + vol-down
But nothing showed any success.
Any idea?
Thank you

It seems like a hw problem. Software doesn't fix itself, but a bad connection can work sometimes. I'd take it to the service warranty.
Sent from my XT860 using xda app-developers app

AragornPE said:
It seems like a hw problem. Software doesn't fix itself, but a bad connection can work sometimes. I'd take it to the service warranty.
Sent from my XT860 using xda app-developers app
Click to expand...
Click to collapse
Unfortunately there is no warranty available. Does it make sense to dismantle the droid, and check all the cables?
Thank you
P.S. You were right. I have put the motherboard into another droid and everything worked.
Is there any chance to change the cable between the screen and the mainboard?

[Q] Power button is not locking/turning off screen but works to bring up power menu.

So this morning I picked up my Note 4, used it normally to check emails, etc, went to turn off/lock screen and it wouldn't respond at all. I held down the power button and then it brings up the power menu, I restarted a few times and still nothing. Is my power button defective or could some setting have automatically changed the settings?

Go to *#0*# and select Sub-Key. Press every physical button on the Note 4 one by one (Volume Up, Volume Down, Home Button, Power Button On, Power Button Off). If the end result is PASS, then you're Power button is fine. Can also be a sticky / tacky power button, or something you modded in the settings.
artkrime said:
So this morning I picked up my Note 4, used it normally to check emails, etc, went to turn off/lock screen and it wouldn't respond at all. I held down the power button and then it brings up the power menu, I restarted a few times and still nothing. Is my power button defective or could some setting have automatically changed the settings?
Click to expand...
Click to collapse

arjun90 said:
Go to *#0*# and select Sub-Key. Press every physical button on the Note 4 one by one (Volume Up, Volume Down, Home Button, Power Button On, Power Button Off). If the end result is PASS, then you're Power button is fine. Can also be a sticky / tacky power button, or something you modded in the settings.
Click to expand...
Click to collapse
Just did the test, every button turned a different color, volume up (gray) volume down (green), menu (brown), home (blue) back (purple) , power (red, is this a fail?) but I didnt get any PASS. Is the power button supposed to have 2 colors, one for on and one for off? I tried holding down the power button but that brings up the power menu.
Also noticed that the screen will not dim or turn off automatically.
Update: I ended up doing a reinstall of the stock fw through Odin and it fixed it. I wonder what caused it and where those settings/issue where stored? I had tried doing a reset from within settings, but as I understand, that doesn't clear ALL the data.

I know how it feels when the diagnostic doesn't yield a pass. Glad to hear that reflashing the stock firmware resolved it though. Could have been something deep in the firmware causing this. Keep us updated if it persists again. The power button has been a culprit of problems in the past for many as well in previous Note devices. The final result should have displayed "PASS" on the display, perhaps you didn't complete the task, that's okay. Sometimes simply clearing the cache instead of factory reset could have resolved the problem as well. Samsung is notorious time to time.
artkrime said:
Just did the test, every button turned a different color, volume up (gray) volume down (green), menu (brown), home (blue) back (purple) , power (red, is this a fail?) but I didnt get any PASS. Is the power button supposed to have 2 colors, one for on and one for off? I tried holding down the power button but that brings up the power menu.
Also noticed that the screen will not dim or turn off automatically.
Update: I ended up doing a reinstall of the stock fw through Odin and it fixed it. I wonder what caused it and where those settings/issue where stored? I had tried doing a reset from within settings, but as I understand, that doesn't clear ALL the data.
Click to expand...
Click to collapse

I have a Note 4 too and since a few days I have been noticing this issue. The power button doesn't wake the screen up. I have to fiddle around the button a little bit, press it a bit harder sometimes and then it works.
Also noticed that when this happens, I unlock the phone using the Home button and when I try to use the power button then nothing happens. Keeping the power button pressed doesn't give me the reboot/boot options either until I fiddle with it.
The strange this is, one it starts working, i can use it again and again until I leave the phone aside until sometime and then the power button does nothing until i repeat fiddling it.
---------- Post added at 03:32 PM ---------- Previous post was at 03:31 PM ----------
Also ran the test : *#0*# and select Sub-Key
All buttons work except the power button but again if I press hard and try to nudge the button a little bit, I saw the colour change to RED. No PASS either.

Do you have any xposed modules installed? I had this happen with either gravitybox or wanam when I tried to tinker with the power menus. *3.

No. Everything is stock and not rooted either.

In my case, a complete wipe to factory fixed the issue for me and never had the issue since then, but it kind of sounds like you may have a hardware issue.

that's what I'm thinking too hw issue. But once it starts to work it works perfectly even pressing the button lightly. If the phone's been idle for a while that's when it starts. But anyway, I'll do the basics, factory reset and then bring it over to the carrier shop. Hate to send it away as its not that long ago i got the phone.
Thanks for all the help/comments.

I just started having the same problem myself. I think I'm going good to buy the right now. For the power button and have it installed.

corpuscallosum said:
that's what I'm thinking too hw issue. But once it starts to work it works perfectly even pressing the button lightly. If the phone's been idle for a while that's when it starts. But anyway, I'll do the basics, factory reset and then bring it over to the carrier shop. Hate to send it away as its not that long ago i got the phone.
Thanks for all the help/comments.
Click to expand...
Click to collapse
I am having the exact same problem , did you manage to solve it ?

No. But I've been using the phone less as in on holidays and noticed it hadn't been happening much. If issue still persists I'll bring the phone back to the carrier for a repair/replacement as it's still under warranty.

For the first few days power button worked occasionally now it has stopped working completely.
Sent from my SM-N9100 using xda Forums PRO

kabuk1 said:
Do you have any xposed modules installed? I had this happen with either gravitybox or wanam when I tried to tinker with the power menus. *3.
Click to expand...
Click to collapse
I have had wanam installed but I uninstalled it , also the phone failed the *0# test
Sent from my SM-N9100 using xda Forums PRO

The working of button changes with temperature. With a little heating with hair dryer the button started working.
Sent from my SM-N9100 using xda Forums PRO

I agree with the temperature because when I was in holidays the issue didn't happen and Iwas in a hot country with 35 deg C. Weird, so was my Note 4 built for Middle East?!?

My power button has started working 100% normal from falling the hw test earlier.
Sent from my SM-T320

I did a full factory reset and it appeared to work but after restoring all my apps and using it for a couple of days it started again. Brought it to the carrier to get it fixed as is still under warranty. They said it was a faulty "electrical component" which they replaced. Got the phone back and I restored all the apps. I have the problem again. I don't trust the carrier to have fixed the issue as it was intermitten in the first place. The button works continuously once it's stays working until I leave it aside for a while. I'll have to bring it back again and wait for a week!
I'll keep you posted.

^ blow some hot air with a hair dryer

My note 4 problem is whenever I remove the charger it went out and behave as it wants to start up and as soon as I replaced the charger I can turn it on and it stays on. Someone please help me with this

No responding M7

Hi all,
This morning i check if my bootloader was unlocked, because i wan't to give it a try to root it.
I found out it was unlocked (holding down volume and press the power button)
After that, i rebooted my phone and everything worked normal.
Until a couple of hours later, my screen didn't wake up when i pushed the power button.
The homebutton and the backbutton where flickering (going on and off)
So, i waited for a couple of minutes, but nothing changed.
After (i think) 10 minutes, i hold the power button for a couple of seconds and the flickering buttons stopped.
Since then my phone doesn't repsond anymore. I tried the powerbutton for a while, and with the combination of holding the vol. up and down.
So far nothing helped.
Does anyone know what's wrong, and what i can do to wake my phone from its coma?
Thanks in advance!
Enjoy your weekend. Ben

Did you press the power button for a few second before the soft keys started going on and off? Does your phone show a green battery animation when you connect it to a charger?
If the soft keys started flashing on their own, and if your phone doesn't show any signs of life even when you attempt to charge it, I'm afraid this is a hardware problem which no one can fix online.
let's wait and see what more experienced members have to say.

Power button doesnt wake up the phone.

Hi,
My note 8's screen got damaged a month ago, but
from past two days the power button seems to be
unresponsive.
I have to press it atleast 10-15 times for my screen
to wake up.
Even if the screen doesnt turn on by a single click,
the usual touchscreen functions still work.
Ex: I can still open the particular app by clicking the screen
on the specific area.
Kindly help.

rockz1991 said:
Hi,
My note 8's screen got damaged a month ago, but
from past two days the power button seems to be
unresponsive.
I have to press it atleast 10-15 times for my screen
to wake up.
Even if the screen doesnt turn on by a single click,
the usual touchscreen functions still work.
Ex: I can still open the particular app by clicking the screen
on the specific area.
Kindly help.
Click to expand...
Click to collapse
There's nothing any of us can do to help you when it's a hardware issue like this. You need to open the back of the phone using a heat gun to loosen the glue and then take the power button out and replace it with a new one.. There's nothing else that can be done and I would suggest that you not shut the phone down or let the battery die out because then you may not be able to turn it back on until you get the power button taken care of!

MrMike2182 said:
There's nothing any of us can do to help you when it's a hardware issue like this. You need to open the back of the phone using a heat gun to loosen the glue and then take the power button out and replace it with a new one.. There's nothing else that can be done and I would suggest that you not shut the phone down or let the battery die out because then you may not be able to turn it back on until you get the power button taken care of!
Click to expand...
Click to collapse
Hi MrMike2182,
Thanks but let me elaborate the issue.
The power button seems to be working fine because it takes approximately 10 to 15 clicks to turn on the screen (sometimes 1 or 2 click)
Let's say that I click the power button and the screen doesn't turn on, the screen functions work fine despite showing black screen.
Ex:
1. If I click on screen location where samsung music is placed and open it, and if I and click on the location of the play button, it plays the music just fine.
2. If I click on the restart button when the screen is black (not turned on), the phone does restart. The Samsung logo lits up just fine. (Mensing to say, the bootup process is not affected)
Also, note that if I successfully manage to turn on the screen after clicking the power button 10-15 times and if I put it to sleep again. I can easily turn on if I click the power button immediately (within the span of 2 seconds).
The problem persists only if the phone is kept I'd for 5 to 10 minutes.

rockz1991 said:
Hi MrMike2182,
Thanks but let me elaborate the issue.
The power button seems to be working fine because it takes approximately 10 to 15 clicks to turn on the screen (sometimes 1 or 2 click)
Let's say that I click the power button and the screen doesn't turn on, the screen functions work fine despite showing black screen.
Ex:
1. If I click on screen location where samsung music is placed and open it, and if I and click on the location of the play button, it plays the music just fine.
2. If I click on the restart button when the screen is black (not turned on), the phone does restart. The Samsung logo lits up just fine. (Mensing to say, the bootup process is not affected)
Also, note that if I successfully manage to turn on the screen after clicking the power button 10-15 times and if I put it to sleep again. I can easily turn on if I click the power button immediately (within the span of 2 seconds).
The problem persists only if the phone is kept I'd for 5 to 10 minutes.
Click to expand...
Click to collapse
Ok based on what you said now I don't believe there's anything wrong with your power button and when you press it and the screen doesn't turn on, in reality it actually is on and it's possibly damaged which is why you can still use the screen functions with the black screen. Whatever type of damage you say happened to it could be causing the backlight to not work but the screens touch function is fine.. Try rebooting into recovery mode and select to clear the phone's cache only and see if it helped anything.. If it doesn't help anything it's pretty much a screen hardware problem and you'll still have to get into the phone's internals..

MrMike2182 said:
Ok based on what you said now I don't believe there's anything wrong with your power button and when you press it and the screen doesn't turn on, in reality it actually is on and it's possibly damaged which is why you can still use the screen functions with the black screen. Whatever type of damage you say happened to it could be causing the backlight to not work but the screens touch function is fine.. Try rebooting into recovery mode and select to clear the phone's cache only and see if it helped anything.. If it doesn't help anything it's pretty much a screen hardware problem and you'll still have to get into the phone's internals..
Click to expand...
Click to collapse
Thanks,
Unfortunately, even factory resetting the phone didn't work out.
Anyway, I will take for service.
Hopefully it might resolve the issue

rockz1991 said:
Thanks,
Unfortunately, even factory resetting the phone didn't work out.
Anyway, I will take for service.
Hopefully it might resolve the issue
Click to expand...
Click to collapse
Since the factory reset didn't work, then unfortunately it really is a hardware issue.. I think you need a new screen..

I have the official led cover case, just opening the case will turn the screen on... Just a temp fix until you can get it repaired maybe.

stonedpsycho said:
I have the official led cover case, just opening the case will turn the screen on... Just a temp fix until you can get it repaired maybe.
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Click to collapse
Thanks stonedpsycho. I will have a look at it.