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[Q] Power Button Not Working

Hi guys,
I have a little problem where my phone's power button will not function in any way, long presses, short, almost embedding my thumb in it, all to no avail. This is doubly dissapointing as I have just installed the latest dexter plus patch to fix the problem. I still had the problem on the previous version and I thought a clean start may fix it. The only way I can get the screen on is to press the media play button! Which of course isn't doing anything on dexter.
Hunches:
I have been playing with a light sensor program and using a 3 second press to turn the phone off, I am only thinking this is related as when I re-installed then turned off the phone using a battery pull, that now the media gallery button will now not work at all, so that is a change.
Second, the power button is buggered. Seems unlikely as everthing feels normal, no big drops have occurred from heights, and the button is travelling in and out as usual.
I have also noticed that as soon as I re-insert a battery that the phone starts immediately, the M pops up as if it is already posting. So maybe it is stuck down?? Again, I don't think so, as the mechanism is working per usual.
If anyone can help it would be fantastic, you guys haven't let me down yet, and this thing is purring, but unfortunately I cannot use it lol. Just my luck.
Thanks in advance

another thing, still not solved
Another thing is happening, the phone screen turns on "after" pressing the power button, it may be once or a few times, and then pressing the gallery button.?!?!
Also, at random times it plays a podcast on my phone, the exact same podcast, and from the start, though the duration may be a few seconds then repeat, or it may go for ages, its quite a rude podcast too which has caused me to throw my phone under the car seat to shut it up when people have been trying to talk to me, as you can imagine its quite embarassing.
There are no services or apps running that I can find related to music, it may happen after pressing the camera button, or opening a website.
It is still going really fast though. And I have also reinstalled the light sensor program so I can turn it on and off without causing damage to the power button.
Thanks again everyone.

pisceanblue said:
Another thing is happening, the phone screen turns on "after" pressing the power button, it may be once or a few times, and then pressing the gallery button.?!?!
Click to expand...
Click to collapse
please clarify

sure, so the only way I can get the screen to turn back on, after turning off as per display power saving preferences, is by pressing the power button, maybe a couple of times, then following that up by pressing the gallery button next to the shutter button, pressing the gallery button doesn't seem to be working to turn the screen on now, but this combo is.
I hope that helped.
Cheers.
EDIT:::
The gallery button alone is working again. sorry guys.

You might just want to reflash it to stock to see if this resolves the problem.

Yeah I think I may have to.
Before I do., I was reading a post on a different forum where another person was having a similar issue. They seemed to solve the problem by using rom manager to boot to a manual restore menu where there was a button tester section, after using it the power button worked for them. I tried but after resetting it displayed a triangle graphic then rebooted.
Is there any way to do this with our open recovery program or any other utility to test the functionality or maybe reset the button or apply a patch etc.
Thanks again :-D
Sent from my XT720 using XDA App

Getting Frustrating
Alright so I followed your advice on your videos on how to reflash to stock, so of course my bootloader does not show up the same as yours on the video. I can get to the bootloader fine, using the button combo or by using quick boot > bootloader, both have the exact same result, the boot loader screens as follows:
Bootloader Fastboot mode
80.89
and that is it....
Also, my computer using rsdlite does not acknowledge the phone, not omap drivers loading etc. Followed your instructions exactly.
This is frustrating me to no end lol.
I am guessing that because I can get to the bootloader with combo no problem, that the buttons physical connections are working.. At least thats a positive.
Can I flash to stock with openrecovery? Or maybe to an earlier version of Dexters froyo? Other ideas?
Any help would be much appreciated guys, trying to use this phone at work with light sensors to turn off screen is not as easy as they say. OMG....
Thanks so much

pisceanblue said:
Bootloader Fastboot mode
80.89
Click to expand...
Click to collapse
The fastboot bootloader isn't the right one. So... if you hold volume up + camera shutter while powering on you end up in fastboot? That's really weird.
Maybe your keys have been remapped somehow? Does anyone know a chord to boot fastboot? Perhaps check to see if your USB port is clean?

Lmao
Just my luck to have a weird problem. I thought it may have been remapped so I have been trying the program buttonremap. It doesn't seem to let me do anything except stop the buttons I re assign doing anything :'(
Does anyone have a proper key mapping file that I can replace with my faulty one to hopefully fix it?
Or any other ideas?
Cheers everyone
Sent from my XT720 using XDA App

Just checked my system / user / keylayout folder. How many files are supposed to be inside, there are a few. I checked the contents of some and they seemed to be the same. Just an idea.... thanks again.
Sent from my XT720 using XDA App

Ok installed anyunlock it allows you to use any physical button to unlock the screen. It doesn't respond when the Power button is pressed, it responded fine to volume rockers, gallery and shutter though.
Anyone know if this would mean for sure its a physical problem before I crack it open and try and fix it.
Thanks guys.
Sent from my XT720 using XDA App

No one has any solutions for me? Come on guys.
Sent from my XT720 using XDA App

Breakthrough!
I am pretty sure I have fixed the problem, I tapped the phone fairly hard on its sides and back, and lo and behold after a battery pull and replacement it didn't turn itself on, I waited, nothing, so then I held the power button and it started up!!!!
But....I have another problem that happened before that, I am stuck in the boot animation that open recovery uses before going into its program (i.e. where you can load nandroid, wipe dalvik cache etc).
I was about to load a new rom, and was in open recovery, had installed it and about to do the reset and the phone turned itself off, and thats when I got the problem with the sticking boot animation.
So just to be clear, I am stuck in a boot loop, but not with the M logo, the restore logo.
I hope the power button solution can help someone else, as random as it is.
If anyone could help me get out of this boot loop without flashing stock that would be great. ( i can get to the real bootloader now btw)
Thanks again everyone.

Solved it all
Just took the sd card out and rebooted. And the power is getting better after banging it.
Thanks to all.
Sent from my XT720 using XDA App

pisceanblue said:
Solved it all
Just took the sd card out and rebooted. And the power is getting better after banging it.
Thanks to all.
Click to expand...
Click to collapse
So, is your conclusion is that the button was stuck and the banging freed it? It doesn't restick?

The Button is not perfect still. Sometimes over sensitive Occasionally it will not even work but it works most of the time. I am just wondering what cleaning solution I could use to free it some more.
It has certainly been a trying problem. Cheers for the help.
Now I need to figure out why I have this strange ghosting on the top of my screen.....
Sent from my XT720 using XDA App

Samsung Galaxy S2 Power Button Not Working
Hi Guys,
Any solution for the power button problem? Current latest Android 2.3.3 Samsung Galaxy S2 also having the same power button problem. Most of the time I can't use my power button to turn on/off the screen (wake/sleep) and there's no menu for long tap as well. Luckily it does wake when i press the only physical Samsung center button.
What i have already tried: Factory Reset, disable Power Saving Mode, Spare Part+ (apps), Screen Off and Lock (apps), and all won't help.
Is there any current updates or patches to allow the power button to work as usual?
Thank you.

take it to the samsung technical centre

Thats if you still have warranty

archer88 said:
take it to the samsung technical centre
Click to expand...
Click to collapse
won't help because this is the 3rd phone replacement from the shop with the same problem. 100% Android software problem.

[lollipop 5.0.1] random reboot while on lockscreen

Hi there, i'm facing a strange problem since two days with my device ( I have stock rom and kernel with 5.0.1 LRX22C , rooted, unlocked and with cwm recovery).
It happens that when i push shutdown button for lock screen, screen shout down, and immediately turn on (in lock screen). So i need to push again shutdown button for switch off screen (sometimes i need to push it multiple times). Then, when i try to switch on screen for unlock device, the shutdown popup appear on my lockscreen, and sometimes device automatically reboot (and sometimes goes on bootloop).
It happen also that if after shutdown popup appear device doesn't reboot, my phone reboot when i'm using it (after few minutes).
I've already try to:
-clean cache
-clean dalvik cache (and it's strange that cwm has this option on nexus 5, that have art)
-factory data reset
I'm excluding (for now) an hardware problem, because this issue doesn't happen always, but randomly during the days.
Could be a lollipop 5.0.1 software issue that someone has already encountered that could be fixed in some ways?
because i'm planning to resale in few months my devices for take a nexus 6, and i don't want sell a device with an hardware problem.
thanks to all

Power button is sometimes getting stuck. Eventually it'll be completely stuck and be held down forever until fixed. A lot of people have had this issue all of a sudden.

Lethargy said:
Power button is sometimes getting stuck. Eventually it'll be completely stuck and be held down forever until fixed. A lot of people have had this issue all of a sudden.
Click to expand...
Click to collapse
So definitely is an hardware problem? because is so strange that this issue happen randomly

giozh said:
So definitely is an hardware problem? because is so strange that this issue happen randomly
Click to expand...
Click to collapse
Yes. Something in the power button mechanism is stuck/broken.

but it's strange. Many people had this problem after lollipop upgrade..
so, if is an hardware problem, i just need to clean the internal switch (esternal button it's not blocked into a strange position or something else), or i need to change entire internal button?

giozh said:
but it's strange. Many people had this problem after lollipop upgrade..
so, if is an hardware problem, i just need to clean the internal switch (esternal button it's not blocked into a strange position or something else), or i need to change entire internal button?
Click to expand...
Click to collapse
Hardware has nothing to do with Lollipop. Might just be that a couple people have had their device for over a year and issues are starting to pop up for them.
Not sure what part of the button is the issue here, haven't had such problems myself.

Is this the end of the line for my N5?

I'm a serial lurker here and hate to ask for help, but want to reach out (and finally start hitting thanks).
My N5 was on MMB29S 6.0.1, SuperSU version 2.65 for root, xposed v79 (gravitybox, APM+, snapprefs), and ran perfectly fine up until a few weeks ago when I started having issues. Apps would sometimes FC, and (not always right after) system would hang and then reset. Sometimes the screen would go black but notification light still would blink.
Upon reset, it would either (a) get stuck at google screen and bootloop or (b) get stuck at some point during the boot animation. If the phone did start, it would usually work for a variable amount of time - minutes, hours, but usually not more than a day. Other times, the phone simply would not start and required a slowly increasing amount of time to boot while holding down the power button, sometimes not even booting at all. The phone would sometimes be unresponsive to holding the power button for up to 12 hours before the phone booted up again. Not saying I help the power button that long, but tried frequently over that period of time.
Over the past few days I've taken to troubleshooting in the ways I could think of and what I've read here on xda (I can link to any of the threads if you are curious) and the rest of the web. I started by disabling xposed, restoring stock boot image and removing root, and have since flashed completely to stock MMB29V and have followed the advice of @audit13 to even flash the userdata.img file and perform a factory wipe before booting the phone for the first time.
Nothing works. Even after being bone stock now there are still random resets, with the power button having to be held down for quite some time to power back on (if at all). The only difference is that it hasn't been getting stuck on the boot animation when it does power on.
I'm a bit sad, and realizing that this is probably the end of the line for my venerable Nexus 5, but any help/suggestions are welcome. Thank you in advance!

Download the Nexus Root Toolkit for your computer to try to restore your Nexus.

Could be a power button issue that's causing the resets? Have you tried removing the motherboard and quickly pressing and releasing the power button several times in a row using more pressure than normal?

audit13 said:
Could be a power button issue that's causing the resets? Have you tried removing the motherboard and quickly pressing and releasing the power button several times in a row using more pressure than normal?
Click to expand...
Click to collapse
I have yet to try that, but will try that in the next couple days. Might not get to it tomorrow as I have an upcoming exam.
I'm not completely sure if that's it though since the system seems to hang/freeze before powering down, but I can give it a shot. Thank you for the idea!
FelipeRodrigo said:
Download the Nexus Root Toolkit for your computer to try to restore your Nexus.
Click to expand...
Click to collapse
As a last resort I could try that -- how do you think that would solve my issue? Thank you!

Maybe a battery problem? I'm just guessing at the different things that may cause a boot problem or resets.

"Force touch" home button stopped working?

An hour or so ago everything worked fine, and then I updated my playstores pending apps (only Fleksy was pending) and the "force touch" feature of the phones seems to have completely stopped working, no matter what setting I turned on or off it didn't work...
Anyone has a clue as to what can cause this?
General notes:
1. Using stock Exynos unlocked variant
2. I am using package disabler (which btw didn't improve much my battery life, but that might be just me using the phone too much ) so maybe one of the packages decided that it depends on a disabled one?

I noticed mine stops working after a reboot and takes about a minute or two to get back up and running. Try a restart after clearing caches, if nothing still, reboot in safe mode. If it works, then its an app you installed interfering.

RazoE said:
I noticed mine stops working after a reboot and takes about a minute or two to get back up and running. Try a restart after clearing caches, if nothing still, reboot in safe mode. If it works, then its an app you installed interfering.
Click to expand...
Click to collapse
Mine also stop working after I restart my S8 Plus, it will again work if I wait around 20 minutes. Is this software or hardware problem? Any solutions?

Wish mine would stop working permanently! can't stand that feature forever brushing across it and waking the phone up!

Ady1976 said:
Wish mine would stop working permanently! can't stand that feature forever brushing across it and waking the phone up!
Click to expand...
Click to collapse
How does it act up on your part? Mine would just stop working if I restart the phone & I should wait sometimes hours before it would work again.

Every time i'm installing my phone in my car mount I need to hold the phone from the bottom to install it correctly and brushing my fingers across the bottom is constantly waking the phone up, I've lowered the sensitivity to it's minimum.

Ady1976 said:
Every time i'm installing my phone in my car mount I need to hold the phone from the bottom to install it correctly and brushing my fingers across the bottom is constantly waking the phone up, I've lowered the sensitivity to it's minimum.
Click to expand...
Click to collapse
I see, problem is not the same. On my part the tactile home button simply doesn't work when you press on it. I have to double tap to wake the phone when on lockscreen.

bladefrost said:
I see, problem is not the same. On my part the tactile home button simply doesn't work when you press on it. I have to double tap to wake the phone when on lockscreen.
Click to expand...
Click to collapse
Unless your phone is unlocked no pins etc the phone will just go to the lockscreen, it's a useless feature, most people have the phones locked and thus it's a complete waste of time, it sounds to me the capacitive home button part of the screen was an afterthought because they couldn't install the fingerprint reader under the screen, just had a software update yesterday and still can't turn it off, basic stuff Samsung should enable an ON/OFF toggle switch for this.

Had the same problem with my S8 Plus India Variant(SM-G955 FD), I got my screen replaced from service center, Device was not rooted back then, so was under warranty.
But it is an hardware issue, as since then it has never gone off.

I mean when I press the home button hard it doesn't wake the phone up & no vibration. It happens when I restart the device then it would stop working for few minutes to a few hours sometimes, then it would start working again normally until I restart the phone again. I think this is just a software issue.

Question Pixel 7 Pro bricked?

I've tried flashing patched boot.img file from the December update with the january rom, because patched boot.img file from january update wasn't working. The phone rebooted twice, displayed a message that the phone failed to boot and gave me options to either restart and try again or factory reset. I chose restart and the phone is since then bricked. Black screen, occasionally if i hold some buttons it flashes faintly but thats all. If i connect it to a pc, it is able to connect after holding some buttons for 2-3 seconds as a COM device, but then it disconnects again.
Also apparently i forgot that p7p was different and did the whole thing with boot.img instead of init_boot.img.

iplux said:
I've tried flashing patched boot.img file from the December update with the january rom, because patched boot.img file from january update wasn't working. The phone rebooted twice, displayed a message that the phone failed to boot and gave me options to either restart and try again or factory reset. I chose restart and the phone is since then bricked. Black screen, occasionally if i hold some buttons it flashes faintly but thats all. If i connect it to a pc, it is able to connect after holding some buttons for 2-3 seconds as a COM device, but then it disconnects again.
Also apparently i forgot that p7p was different and did the whole thing with boot.img instead of init_boot.img.
Click to expand...
Click to collapse
Is it out of battery?

mackdacre said:
Is it out of battery?
Click to expand...
Click to collapse
sadly no, around 60-80% maybe

hello have you tried pixel flasher?

jejemc said:
hello have you tried pixel flasher?
Click to expand...
Click to collapse
i will try now, but i dont think it'll work since the pc doesn't recognize the phone. i can make the phone somehow connect to the pc for 2 secs, but it connects as COM device and instantly disconnects after that.
Edit: it did not work

and holding the power button and volume up or down for a while does nothing?

jejemc said:
and holding the power button and volume up or down for a while does nothing?
Click to expand...
Click to collapse
correct. power + vol up, power + vol down, all 3 buttons pressed at the same time - nothing, all nothing. I'm able to make the screen for a brief second if i connect the phone to charge and press all 3 buttons or volume down + power, but that's all.

iplux said:
correct. power + vol up, power + vol down, all 3 buttons pressed at the same time - nothing, all nothing. I'm able to make the screen for a brief second if i connect the phone to charge and press all 3 buttons or volume down + power, but that's all.
Click to expand...
Click to collapse
alas it means sending it sav I don't see what else to do.

jejemc said:
alas it means sending it sav I don't see what else to do.
Click to expand...
Click to collapse
small update, i just noticed that the phone is slightly warm, so its definitely on and doing something in the background with the screen completely off. I will give it a night to completely discharge and see if i can get it to show literally anything on the screen. If not, i gotta think of a way to ship it to the UK so it can get fixed, because i'm in a non supported region sadly.

Have you tried holding down the power button for 15 seconds?

febo17 said:
Have you tried holding down the power button for 15 seconds?
Click to expand...
Click to collapse
yup, sometimes that makes the screen flash for a split second and then nothing. tried pretty much any combination for up to 30 secs. sometimes its a single screen flash, sometimes it flashes twice. It's barely visible.

iplux said:
yup, sometimes that makes the screen flash for a split second and then nothing. tried pretty much any combination for up to 30 secs. sometimes its a single screen flash, sometimes it flashes twice. It's barely visible.
Click to expand...
Click to collapse
Just to see if I understand better, so the phone is on but the screen doesn't work as it should?

Try it even longer than 30 seconds (up to maybe 60 seconds) , I also had some problem with my P7P stuck and needed to push it really long

febo17 said:
Just to see if I understand better, so the phone is on but the screen doesn't work as it should?
Click to expand...
Click to collapse
i was on december android update with magisk installed. i tried today to install january update today - i patched the boot.img file (yes, i know it should've been init_boot.img), replaced the original boot file with the patched one on my pc and flashed the new january rom with "-w" parameter removed. That however didn't work (obvious reasons), i had no root. I then decided that the new boot.img file from the january update might have some issues , and decided to flash the january update with replaced boot.img patched from december update (again with -w parameter removed). The phone took it all, then the google logo popped up... after a few seconds it restarted and the google logo popped up again... it once again didnt boot, and restarted, but after the 3rd restart i was greeted with a message from the bootloader (i assume) that the system failed to load twice, and i was presented with 2 options - "restart and try again" or "factory reset the system". I chose restart, and the screen went black and that was all. (it was only after all of this happened when i realized that everything happened because i was patching the boot.img instead of init_boot.img).
Now the screen is black, no matter which button combination i am trying. Sometimes the screen flashes once or twice when i hold some buttons, but that aside- nothing. I assume the phone is still doing something in the background, because if i leave it on my bed sheets and touch it after awhile, the back is a bit warm, so obviously something is working, but im certain its not the OS.

iplux said:
i was on december android update with magisk installed. i tried today to install january update today - i patched the boot.img file (yes, i know it should've been init_boot.img), replaced the original boot file with the patched one on my pc and flashed the new january rom with "-w" parameter removed. That however didn't work (obvious reasons), i had no root. I then decided that the new boot.img file from the january update might have some issues , and decided to flash the january update with replaced boot.img patched from december update (again with -w parameter removed). The phone took it all, then the google logo popped up... after a few seconds it restarted and the google logo popped up again... it once again didnt boot, and restarted, but after the 3rd restart i was greeted with a message from the bootloader (i assume) that the system failed to load twice, and i was presented with 2 options - "restart and try again" or "factory reset the system". I chose restart, and the screen went black and that was all. (it was only after all of this happened when i realized that everything happened because i was patching the boot.img instead of init_boot.img).
Now the screen is black, no matter which button combination i am trying. Sometimes the screen flashes once or twice when i hold some buttons, but that aside- nothing. I assume the phone is still doing something in the background, because if i leave it on my bed sheets and touch it after awhile, the back is a bit warm, so obviously something is working, but im certain its not the OS.
Click to expand...
Click to collapse
I hope you solve it, good luck and stay tuned

Since this is a very new device, I suggest contacting Google for warranty repair, because that will be much easier than trying to diagnose what works and what doesn't, as well as trying to recover the device. You have a warranty; use it.

oko17 said:
Try it even longer than 30 seconds (up to maybe 60 seconds) , I also had some problem with my P7P stuck and needed to push it really long
Click to expand...
Click to collapse
just tried:
pwr
pwr + vol up
pwr + vol down
pwr + vol up + vol down
each for more than a minute, no response.

V0latyle said:
Since this is a very new device, I suggest contacting Google for warranty repair, because that will be much easier than trying to diagnose what works and what doesn't, as well as trying to recover the device. You have a warranty; use it.
Click to expand...
Click to collapse
I most likely will, i just don't want to because im in Bulgaria (a country where they dont sell the phone) which means i have to find a way to send the phone to the UK, and they will probably refuse to ship it back.

iplux said:
I most likely will, i just don't want to because im in Bulgaria (a country where they dont sell the phone) which means i have to find a way to send the phone to the UK, and they will probably refuse to ship it back.
Click to expand...
Click to collapse
Ah. Well...without the screen working, there isn't much you can do, beyond seek repair in your own country. If the screen isn't working, it's usually due to either of 2 reasons, both of which require specialty repair:
The screen and/or display controller are defective and must be replaced
The bootloader is corrupted and the mainboard must be replaced
The tools required to rescue a device with a corrupted bootloader are not publicly available, unfortunately.

This is kinda crazy....
this is probably the first time/instance I've seen where tripping up the init_boot partition (with the boot.img used instead) caused this bad of a problem! Since the Pixel 7's changed things to init_boot, there have been very many people that have gotten tripped up flashing the boot.img to it, but it usually just results as a bootloop and a simple reflashing of the stock init_boot properly fixes things!
Are you sure you tried completely draining the battery? A hard reset can sometimes do wonders...
If Google doesn't "play ball", I'm sure you could find some 3rd party repair company/shop that would -- of course this will also cost money though...
Hopefully it works out for you OP!