Develop Bugs

Power button problem

Hi all,
My XDA IIs works well before. But few days ago the Power button doesnt work properly, it can turn on the phone, hold to turn off the back light, but I can't use it to turn my phone screen off like before. Anyone has same problem ?

Can you see any part of the screen? It might just be that the backlight adjustments are set too low when the unit isn't cradled. You might be able to see the screen in daylight.. or maybe it was inside your home. I forgot where I was at when it happened to me. In anycase, if you can see a bit of images on your screen, go into the Backlight properties and change the setting to your liking.
Good luck..

The problem is i can just press the power button to turn off my phone BEFORE (the screen is completly off), and NOW it doesnt work at all ! When my phone was off, I can press the Power button to turn it on, or when I hold it for few seconds the back light will be turned off, but press once to turn off. I dont know why, if somthing wrong with the Power button it should be doesnt work at all, that's mean i cannot turn on my phone as well. But other functions of the Power button are still work well, except the 'Turn off' :roll:

power off doesn't work anymore
I have the same problem here. I can't use the power button to power off my qtek 9090!!
i can use the power button to turn my pda on and to switch the background light on and off - so the "hardware side" of the power button is working.
however, i can't use the power button to turn off the device. it's very annoying, because i can't put it in my pocket after finishing a call :-(
this should be some sort of a software problem - so i hard resetted my device (a couple of times) - but that didn't help!
can anyone help?
thanks,
lorenz

the ba doesn't turn off it is always on staand by mode. ->settings -> system -> button lock
this will stop any missed call because when the ba is in standby the power button is the only one to work

power on is no problem. i can't put my BA into standby mode. if i press the power button while the BA is turned on, nothing will happen. the screen will stay on, the background light stays on.
i have no way to put it into stand-by with the power button!

try this and see if it works. it's a software app that wil rest, shut down, and turn the screen off. just copy it to your BA temp directory and install it.

power button problem
nemchua
Is your problem solved ?
Because I have the same problem.
Power of switch doesn't work !!!
Any help would be welcome.

power button problem
Does anyone solve the problem???

Had the same problem...
I had the same problem going on for about two weeks or so...never changed anything and it went away all by itself.
The problem has not come back now in over 4 months.
Sure would love to know what the problem was tho...
Greetings,
Noddy

Power Off does not work
Add my name to people with this problem.
The only event I can link it to is this: I deleted my Motorola Bluetooth headset and installed a Logitech headset. I noticed the problem (can't turn OFF with POWER BUTTON) soon after that.

same problem for me ..... someone must know !!!!

I think it is a hardware problem. The contact is not making cleanly. Disassemble and spray time, perhaps.

It's a standard push switch, easy enough to replace, I occasionally list themon ebay but any phone repairier should have them in stock.
Richard

i had same problem yesterday afternoon, but it is ok now. recovered by himself

Write again in two weeks and let us know if it is still healthy. In my case, anintermittent problem became continuous.

Can't turn the screen on after pressing power button
I have a problem with my Bell Atrix. After pressing power button to lock the screen, i can't wake up the screen up by pressing that button again. Could anyone tell me how to fix it pls.

how do you force shut down?

so i notice HTC one x battery is not user replace-able. How do you force the phone to shut down in case the phone is freezing or whatever reason?

hold the power button for about 10 sec simulates a battery pull

saryu said:
so i notice HTC one x battery is not user replace-able. How do you force the phone to shut down in case the phone is freezing or whatever reason?
Click to expand...
Click to collapse
I think you have to hold down VOL+, VOL- and POWER together to do that. Just tried it on my phone and it shut the phone down. Not sure if it works in situations where the phone is frozen though.

What Daan said, hold the power button until it shuts down (max 10sec)

thx, i haven't got my one x yet but this should be useful when my one x arrived.

with the power button (hold for 10sec) you can only force a restart on the hox!
but how can you make a shutdown only with hardware buttons?
for example: the display cracked and you want to power down your phone?
as far as i know, no chance to shut it down!

howsed said:
with the power button (hold for 10sec) you can only force a restart on the hox!
but how can you make a shutdown only with hardware buttons?
for example: the display cracked and you want to power down your phone?
as far as i know, no chance to shut it down!
Click to expand...
Click to collapse
The closest you get is 'holding power + volume down' for around ten seconds. The system will reboot into the Booloader, where you can select power down.

fastboot oem powerdown (if you are interested)
note: you cant turn off the one X ,instead it runs the recovery in a low-power-hidden mode.

Vcek said:
fastboot oem powerdown (if you are interested)
note: you cant turn off the one X ,instead it runs the recovery in a low-power-hidden mode.
Click to expand...
Click to collapse
Just uncheck the fast boot option in settings and it will completely shut down, to force it just press power button + vol down

matt95 said:
Just uncheck the fast boot option in settings and it will completely shut down, to force it just press power button + vol down
Click to expand...
Click to collapse
Fast boot mode already off, i thought my phone was off until I tried the adb commands on my "turned off" device. (it takes around 10 seconds to start hidden recovery mode)

Shutdown only with Hardwarebuttons. NO CHANCE !
good comments, but nobody had a really good answer for my question from post #6....
how do you shutdown the HOX, if you have no chance to access the touchscreen or see anything on the lcd?
the thing is, i got that problem, that i had an cracked display.
when i disassembled it to put in the new display, the HOX started up, because i accidentally pushed the power button...
how can i now shut it down, if it´s disassembled?
i tried, but with hardwarebuttons only, you have NO shutdown function at all....

howsed said:
good comments, but nobody had a really good answer for my question from post #6....
how do you shutdown the HOX, if you have no chance to access the touchscreen or see anything on the lcd?
the thing is, i got that problem, that i had an cracked display.
when i disassembled it to put in the new display, the HOX started up, because i accidentally pushed the power button...
how can i now shut it down, if it´s disassembled?
i tried, but with hardwarebuttons only, you have NO shutdown function at all....
Click to expand...
Click to collapse
Disconnecting the battery after removing the "VOID" screw.
Sent from my EndeavorU

MarioUK said:
I think you have to hold down VOL+, VOL- and POWER together to do that. Just tried it on my phone and it shut the phone down. Not sure if it works in situations where the phone is frozen though.
Click to expand...
Click to collapse
Its Workin Thanks buddy i've tested it with Samsung A3 runnning Android 4.4.4 :good:

[Q] power button issue?

Hi all,
does anyone sometimes have to press the power button (when phone is completely turned off) twice (2 presses to turn on) sometimes?...
so just to confirm
- handset is off
- push power button once (sometimes doesnt come on
- push for second time (and powers up)
im defiantly pushing for long enough
iv have no issues with the button at all when in the UI or when locking/unlocking display
iv done a few tests where i have turned off. then went to switch on, with the same pressure and sometimes it starts with one, sometimes it starts with two presses,
do u think this is a fault? anyone experience this? normal?
just checking...
thanks heaps!

I had the opposite on my first one. When I pressed the power button to turn screen off, the screen went black for 1 sec and jumped back on lock screen.

brodiecb said:
Hi all,
does anyone sometimes have to press the power button (when phone is completely turned off) twice (2 presses to turn on) sometimes?...
so just to confirm
- handset is off
- push power button once (sometimes doesnt come on
- push for second time (and powers up)
im defiantly pushing for long enough
iv have no issues with the button at all when in the UI or when locking/unlocking display
iv done a few tests where i have turned off. then went to switch on, with the same pressure and sometimes it starts with one, sometimes it starts with two presses,
do u think this is a fault? anyone experience this? normal?
just checking...
thanks heaps!
Click to expand...
Click to collapse
to switch on device you have to keep pressed power button for few seconds or u can keep it pressed until you see lights at the touch keys.. :good:

Hi
brodiecb said:
Hi all,
does anyone sometimes have to press the power button (when phone is completely turned off) twice (2 presses to turn on) sometimes?...
so just to confirm
- handset is off
- push power button once (sometimes doesnt come on
- push for second time (and powers up)
im defiantly pushing for long enough
iv have no issues with the button at all when in the UI or when locking/unlocking display
iv done a few tests where i have turned off. then went to switch on, with the same pressure and sometimes it starts with one, sometimes it starts with two presses,
do u think this is a fault? anyone experience this? normal?
just checking...
thanks heaps!
Click to expand...
Click to collapse
I don't think many people would turn their phone completely off so haven't found the issue.
When you power off what will be happening is the phone is off as much as it can be, but these buttons are soft off, the battery is still connected and some power must be drawn to run the power circuitry to detect the button being pressed again to signal to power back up the phone, in the same way when you turn your TV off by the remote, power is still drawn to run the remote sensor on the TV.
To keep the drain on the battery as low as possible so the battery isn't completely discharged over months of storage I suspect the power chip waiting for the on signal again is only sampling every so often to save power so it can be in super deep sleep state. This means depending on where in this cycle you are when you press the power button it might seem like it isn't responding, so typically you have to leave it depressed long enough for it to be "seen".
The better option is to just to put your phone into flight mode if you don't want to be disturbed or want the phone off. I do this overnight and lose no battery power by the morning, so it is as good as off. You can add a button to your home screen to do this quickly, widgets are included already for that.
Regards
Phil

Mine does the same thing.. Sometimes it does it with waking up from sleep also.
Sent from my HTC One X using xda app-developers app

Hard reset fastboot is enabled

Hello everyone, my girlfriend is having an issue where her m8 won't turn on. We looked at it last night and put it on the charger (although we didn't expect it would be dead already) and then left it over night. Woke up this morning and it's still having the same issue. I tried doing both a hard reset and soft reset, just anything to get it out of this weird loop it's in. Everywhere I look for information on hard resetting it says you need to disable fastboot - something a little difficult to do if your phone won't turn on. Are there any other tricks or work arounds that maybe I'm overlooking? I'd prefer to stay away from 3rd party fixes if possible that will void the warranty as I don't want her phone to get rejected if we need to send it out for repair. The closest repair facility is a bit of a distance so I want to see if there is something we can do from home first.
Thanks!

Disabling the "fastboot" option isn't really necessary.
Although I'm not sure what "weird loop" means. If its actually doing a boot loop, and rebooting, then just hold vol down to enter bootloader.
Otherwise, if its just "stuck" on the boot screen, then hold power and vol up to force a reboot (hold for maybe 10 seconds or so); and the moment the screen goes dark, let go of vol down and start holding vol down and don't let go until you see bootloader.

redpoint73 said:
Disabling the "fastboot" option isn't really necessary.
Although I'm not sure what "weird loop" means. If its actually doing a boot loop, and rebooting, then just hold vol down to enter bootloader.
Otherwise, if its just "stuck" on the boot screen, then hold power and vol up to force a reboot (hold for maybe 10 seconds or so); and the moment the screen goes dark, let go of vol down and start holding vol down and don't let go until you see bootloader.
Click to expand...
Click to collapse
My apologies, my terminology may be incorrect.
The display is not turning on. Holding power + volume up or power + volume down do not get the screen to turn on.
The instructions I looked at all say disable fastbooting before trying to force boot or hard reset. So that was my confusion.
I really appreciate the help.

JoshOohAh said:
The display is not turning on. Holding power + volume up or power + volume down do not get the screen to turn on.
Click to expand...
Click to collapse
Any charging LED when charger connected? Any response from computer if you connect the phone?
Leave the phone on charger (wall charger, not connected to a computer) overnight, and try the button combos again (also, try just holding power down, no other buttons; in addition to the button combos you listed). Try this with the charger connected, as well as without.
Some folks have gotten their seemingly dead M8's to revive with apparently random combinations of button pressing (often holding the buttons for a long time, 1 to 2 minutes) charger plugged in, etc.
JoshOohAh said:
The instructions I looked at all say disable fastbooting before trying to force boot or hard reset. So that was my confusion.
Click to expand...
Click to collapse
The only reasons instruction say that, is that the phone either needs to be "real" power off, or a reboot in order for the button combo to go into bootloader (power + vol down) to work. When "fastboot" is selected in Power settings, it actually prevents a real power down (its actually just a sleep state). But if you reboot, it doesn't matter. A reboot is a reboot, it doesn't matter if "fastboot" is enabled. And Power + vol up is one way to force a reboot.
None of this matters, if the phone is not responding (screen not coming on) at all in the first place.

redpoint73 said:
Any charging LED when charger connected? Any response from computer if you connect the phone?
Leave the phone on charger (wall charger, not connected to a computer) overnight, and try the button combos again (also, try just holding power down, no other buttons; in addition to the button combos you listed). Try this with the charger connected, as well as without.
Some folks have gotten their seemingly dead M8's to revive with apparently random combinations of button pressing (often holding the buttons for a long time, 1 to 2 minutes) charger plugged in, etc.
The only reasons instruction say that, is that the phone either needs to be "real" power off, or a reboot in order for the button combo to go into bootloader (power + vol down) to work. When "fastboot" is selected in Power settings, it actually prevents a real power down (its actually just a sleep state). But if you reboot, it doesn't matter. A reboot is a reboot, it doesn't matter if "fastboot" is enabled. And Power + vol up is one way to force a reboot.
None of this matters, if the phone is not responding (screen not coming on) at all in the first place.
Click to expand...
Click to collapse
I did leave it on the wall charger last night and was playing with different combinations. I'm going to try plugging it into my computer when I get home. I'm not noticing any LEDs come on however which is what is making me think it's not a screen issue.

redpoint73 said:
None of this matters, if the phone is not responding (screen not coming on) at all in the first place.
Click to expand...
Click to collapse
JoshOohAh said:
I did leave it on the wall charger last night and was playing with different combinations. I'm going to try plugging it into my computer when I get home. I'm not noticing any LEDs come on however which is what is making me think it's not a screen issue.
Click to expand...
Click to collapse
I recall reading that someone got a similar issue sorted by hold Volume Up or Volume Down + Power button while holding the phone under a bright light(proximity sensor at the front needs to be directly under light).
There was similar threads/methods on the old HTC One(M7) too that apparently worked. Don't know if it's just coincidence or what Might be worth a shot.
Edit: Volume UP OR Volume down, not both at the same time

BerndM14 said:
I recall reading that someone got a similar issue sorted by hold Volume Up or Volume Down + Power button while holding the phone under a bright light(proximity sensor at the front needs to be directly under light).
There was similar threads/methods on the old HTC One(M7) too that apparently worked. Don't know if it's just coincidence or what Might be worth a shot.
Edit: Volume UP OR Volume down, not both at the same time
Click to expand...
Click to collapse
Seems goofy - but no luck! Thanks for the input though.
Any other suggestions?

JoshOohAh said:
Seems goofy - but no luck! Thanks for the input though.
Any other suggestions?
Click to expand...
Click to collapse
Have you tried holding Power and Vol Up button when the phone is pluged in?
Tri taking SD Card and SIM card out and start.
Have you tried another charger?

Tablet won't turn on / charge

Hi,
I've only had my Samsung Galaxy Tab S for a few weeks. Whilst on a plane the battery went to 0%.. no problem I thought as I'd simply charge it when I got to a power source.
However, when plugged in, nothing happens. No LED light, nothing on the screen. I've plugged it into a wall socket and via USB into a PC. I have held down the power button, home and volume down for a period of time, as well as just the power button and volume down.
Has my tablet gone kaput?
Cheers,
Titanium

I'd just let it charge for a while. It'll take a bit before it comes back to life if it was completely drained.
If you still don't get any response hold POWER + VOL DOWN.

ashyx said:
I'd just let it charge for a while. It'll take a bit before it comes back to life if it was completely drained.
If you still don't get any response hold POWER + VOL DOWN.
Click to expand...
Click to collapse
Should it show any lights? It's as if it's not even charging at all.

titanium1 said:
Should it show any lights? It's as if it's not even charging at all.
Click to expand...
Click to collapse
If it was powered off I'd expect the battery icon to show.
Did you try holding POWER + VOL DOWN?

ashyx said:
If it was powered off I'd expect the battery icon to show.
Did you try holding POWER + VOL DOWN?
Click to expand...
Click to collapse
Yeah, tried to hold it down. No LED lights and nothing shows on the tablet. It's as if it's just dead.

titanium1 said:
Yeah, tried to hold it down. No LED lights and nothing shows on the tablet. It's as if it's just dead.
Click to expand...
Click to collapse
There are no leds.
I know someone else had the same problem. They used a different charger and it worked.
Try that first.

titanium1 said:
Hi,
I've only had my Samsung Galaxy Tab S for a few weeks. Whilst on a plane the battery went to 0%.. no problem I thought as I'd simply charge it when I got to a power source.
However, when plugged in, nothing happens. No LED light, nothing on the screen. I've plugged it into a wall socket and via USB into a PC. I have held down the power button, home and volume down for a period of time, as well as just the power button and volume down.
Has my tablet gone kaput?
Cheers,
Titanium
Click to expand...
Click to collapse
I had this problem.
You'll have to pry off the back cover, remove the wire that connects the battery to the motherboard. (A battery pull, basically).
Keep it off for 30 seconds. Then plug back in.
Use ifixit for details about opening. Feel free to ask for more help.

Try this one.
1) connect the tab to PC
2) press Home, Vol Down and Power simultaneously up to a screen appears;
3) press Vol Down to cancel and reboot the tablet.
John.

Now there are a few things you can try...
First check your charging port for any dust or any foreign particle. There has to be a small gap between the base of the charging port, and the small slab above it. Carefully, using a board pin, try and push that slab a bit up, don't apply too much pressure, just enough to make it move slightly!
This can happen sometimes if you drop your phone.
Next, make sure your charger, and the USB cable are working fine.
Also tell me if you have any Xposed module for your battery installed on your phone!
Sent from my SM-G530H using XDA Free mobile app

Tinderbox (UK) said:
Try this one.
1) connect the tab to PC
2) press Home, Vol Down and Power simultaneously up to a screen appears;
3) press Vol Down to cancel and reboot the tablet.
John.
Click to expand...
Click to collapse
Thanks so much for that.
This morning, I plugged my tablet in to AC charge before leaving for the day -- battery was at ~30% and all was well. This evening, I came home and the tab was stuck at a weird Samsung logo -- not the normal boot with colored ovals, but the logo surrounded by a moving star field, never seen before, and could not get the tab to respond, turn off, do anything. Tried many wacky suggestions found on the intertubes to stop/start it, including holding power plus touching the screen for > 30 seconds, none of which worked. Never would have thought your suggestion for download mode would work, but it did on the very first try.
I'd like to know how the tab got into that state, and what that star field logo is about. But at least it's working again, for now.
Thank you.

That's the normal lollipop boot screen.