Database Develop

Power Button Problem

Recently I've been having issues with my power button. When I attempt to press and hold it to bring up the "Power off," "Reboot phone," etc. menu, it immediately just shuts off the screen. It isn't recognizing the long-press action. Pulling the battery is almost always the only option I have to shut down the phone. Very frustrating. Anyone have a similar issue or suggestions on how to remedy the situation? Thanks.

Well if you're trying to reboot or go to recovery/fastboot you can download quick boot from the market. Not sure how to fix your shut off screen problem though.

Yeah, I've been a Quick Boot user for quite some time. It's actually shutting down the phone that I'm having a problem with. I just can't figure out why it won't recognize my long-press anymore. It just immediately turns off the screen. Very frustrating.

I have the same problem
I tried with hard reset and different original rom but the problem persists, I think it's a hardware problem.

there's a post around that describes how to clean the power button which usually fixes it. will try to find it.

behelit said:
there's a post around that describes how to clean the power button which usually fixes it. will try to find it.
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Click to collapse
Sweet. Thanks!

http://forum.xda-developers.com/showpost.php?p=6681240&postcount=9
EDIT: I was having to use a Gscript to power off/reboot the phone.
Leave "su" checked and make a gscript. In it put:
Code:
reboot -p
for shutdown
don't forget the carriage return at the end.

I've been having the same problem for the past couple of days. The most annoying thing is that unlocking the phone can take several attempts.
I finally had time to try to clean the button. I took the back off and took a small brush and stuck a few bristles down the side of the power button and wiggled them around in an attempt to clean around it, then blew around the button with some air. I used an air compressor but a can of compressed air should work the same. This was 5 minutes ago and, so far, it seems to have fixed my power button problem. Hopefully it was just dirty instead of faulty.

fubaya said:
I've been having the same problem for the past couple of days. The most annoying thing is that unlocking the phone can take several attempts.
I finally had time to try to clean the button. I took the back off and took a small brush and stuck a few bristles down the side of the power button and wiggled them around in an attempt to clean around it, then blew around the button with some air. I used an air compressor but a can of compressed air should work the same. This was 5 minutes ago and, so far, it seems to have fixed my power button problem. Hopefully it was just dirty instead of faulty.
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Click to collapse
Wow. Well, I'll have to give the brush and spray method a shot and see what happens. Thanks for the tip.

fubaya said:
I've been having the same problem for the past couple of days. The most annoying thing is that unlocking the phone can take several attempts.
I finally had time to try to clean the button. I took the back off and took a small brush and stuck a few bristles down the side of the power button and wiggled them around in an attempt to clean around it, then blew around the button with some air. I used an air compressor but a can of compressed air should work the same. This was 5 minutes ago and, so far, it seems to have fixed my power button problem. Hopefully it was just dirty instead of faulty.
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Click to collapse
Where exactly did you stick the brush? I just got this problem :I

I realised this issue when I started using the desire rom port by Paul. I've since then switched to the Froyo build and don't encounter this anymore. Don't know if it was just a coincidence.

I've tried cleaning with a brush and compressed air, but the problem still persists. Grrr...

Amrosorma said:
Where exactly did you stick the brush? I just got this problem :I
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Click to collapse
I took the back off and just stuck a few bristles of the brush down the button hole. If this helps you visualize it, the phone was vertical and so was the brush. The bristles went straight down beside the power button and I wiggled it around a little. I tried to get all four sides of the button, but can't remember if I was successful. I don't know if the brush actually did anything, but it's been working better after brushing and blowing it out.

I have this problem randomly... My way is to hold the power button down the whole time while pushing the shutdown button and the okay when the prompt appears!

I seem to have finally fixed my power button. Basically I just took the battery cover off and then gently pried back the plastic power button toward the rear of the phone until I could see underneath it. Then I carefully shoved a safety pin between the plastic button and the actual electronics beneath it and lightly wiggled it around a bit. I repeated this several times, testing the functionality of the button in between attempts, and eventually got it back to proper working condition. If you're brave enough to attempt this, it might work for you too.

HTC Touch power button broken. Stuck on Droid. What to do?

I dropped my phone yesterday, and the power button doesn't do anything now. It doesn't seem to move much, either. I popped a little of it out using the stylus, and couldn't find any wires so I don't think there's a solution. The button itself seems fine, but I think it got dislodged a bit from whatever mechanism (spring or latch) that tells it to turn on or w/e. Looks impossible to open up the device. (don't see any screws. looks soldered in)
Anyway, the phone itself works. I resetted it and it'll load up Android fine. I just can't get into Android because you need to press the power button to get out of the standby screen.
Is there any way I could
a) assign a new button in Android (say the center button?)
b) fix the button (or if I brought it to a Sprint store would it cost less than the phone? ($60))
c) get rid of Android and go to Windows without using the power button (power+reset code)
Thanks for the help!

mozillameister said:
I dropped my phone yesterday, and the power button doesn't do anything now. It doesn't seem to move much, either. I popped a little of it out using the stylus, and couldn't find any wires so I don't think there's a solution. The button itself seems fine, but I think it got dislodged a bit from whatever mechanism (spring or latch) that tells it to turn on or w/e. Looks impossible to open up the device. (don't see any screws. looks soldered in)
Anyway, the phone itself works. I resetted it and it'll load up Android fine. I just can't get into Android because you need to press the power button to get out of the standby screen.
Is there any way I could
a) assign a new button in Android (say the center button?)
b) fix the button (or if I brought it to a Sprint store would it cost less than the phone? ($60))
c) get rid of Android and go to Windows without using the power button (power+reset code)
Thanks for the help!
Click to expand...
Click to collapse
There are 4 Torx screws (1 under the warranty void sticker) essentially at every corner, so if you get a small enough torx screwdriver you can open it up
Here is a guide albeit in Russian, but the pictures are self explanatory
http://www.pdacenter.ru/razborka/razbor_htc_touch/

Is there any way I can reassign the button to the Back button or something? I need a quick fix so I can use the phone now for calling. Its probably built on to the motherboard because there's no wiring from the looks of it. Not sure where to find such a screwdriver, but I'll look into it.

I had a similar problem with my camera (back) button. It was a fairly easy fix. You will need a tiny Torx to get it open. There is a complete teardown thread on this site to help guide it. Once I had the right Torx driver, it took a few minutes. The switches are surface mounted and are held in place with clips. I had to bend the clips back into place and then reflow the solder joints with a soldering iron. I dropped some solder onto the clips to hold them together.
I tried to roll an alternate ROM with different key assignments...the build process is not well documented, IMO. I asked and was basically told to go make friends with a developer.

captivate problems

my volume down button is constantly trying to turn the colume down have taken it appart and reset it and still wont stop

Have you noticed whether or not the button seemed to click down properly (mechanically), or was it stiff or what?
Seeing as how the volume down button is actually soldered directly to the main logic board, I'd say if you don't have crud that's worked its way in to physically depress or cause the button to stick, then it's probably a broken switch inside the button (sorta like adhesive switches/buttons going out), and the only way to take care of that issue would be to replace and re-solder in a new switch.

Phone keeps randomly rebooting into a loop

I have my Galaxy Exhibit (II) 4G for about a year and two weeks now. Warranty period is just over. I used Stock ROM in the beginning and have been using CM10(.1) roms for about 10 months.
Yesterday early night I noticed my battery suddenly diminished about 60% in 15 mins. Then I had it in the charger later, and I think I let it fall one time, like that happens sometimes. Since then my phone has been randomly rebooting and then looping either the battery sign or the Samsung sign.
Usually I can get it to boot up again with holding the power button, but sometimes I just keep pressing everything until something happens.
I can get into recovery. I tried wiping everything. I have tried deleting battery stats. I have tried other (non-oc) ROMs.
NOTE that sometimes it happens in recovery mode too, usually right as it is getting into it, so it might be totally non software related.
Do you guys think my phone is broken? Or is it worth trying to buy a new battery?

Turns out the phone thinks its on/off button sometimes is pressed, so it keeps rebooting. If I press it a couple times it's over. But then then next time there's always like a 50% chance that it gets stuck again...

Did you solve your problem because am facing the same problem. I can't even make it far enough to boot into recovery
Sent from my Nexus 7 using xda app-developers app

I'm stuck in the same problem, first I thought it was a physical problem but I had to get technical assistance of an expert and he confirms its rom problem. he's going to install stock again via some freaking hardware because with my pc I couldn't. Any suggestions?
Enviado desde mi GT-I9100 mediante Tapatalk

Defintly this guy couldn´t fix it, he reinstall the previous t-mobile original firmware and nothing happens, still rebooting. Another technician check it and told me he must replace a bootloader IC, I hope it works.

Now the "new technician" couldn´t fix the phone. He told my wife that previous Rom (cyanogenmod unofficial)"must have a virus and it infected the boot". I keep thinking is a hardware malfunction. Any suggestions?

If you got the ROM from xda I doubt it had a virus. Have you tried Odin back to stock yet. If not try that first.
Sent from my SGH-T679 using xda app-developers app

I dubted too, the problem is it can´t boot. I have the samsung logo, then it apears the Exhibit logo and shuts down, it keeps like that again and again. I managed to get download mode but the same, 3 sec after it shuts down so i can´t install anything.

Then ya i would have to agree that the device is defective.
Sent from my SGH-T679 using xda app-developers app

I had the same problem and i use to solve it by hitting the phone from the back and after i let it fall accidently it back to normal

I have the SAME problem!!!
ok so, my phone was awesome but since this is vacation time I decided to try a new rom, It was fine but then it started rebooting all the time. HOWEVER, I was able to try other roms after several attempts and think it's related to the calibration of the power button. It tries to stay awake but when I try and press the power button, that's when the problems start. Does anybody know of a way to calibrate the power button? I think that would be the solution, in case that's even possible. If not I'll have to buy a dumbphone for I don't have the money to spare on a new phone just now...

I had something similar happen this weekend. This may not apply to everyone, but I found that after pressing the power button over the course of two years the thin plastic "arms" that hold the power button inside the case have become stretched and weakened. Went back to stock to eliminate every conceivable variable. It would continue to reboot even without touching it, with or without a case. Essentially, the power button is resting against the motherboard's power module, or rather stuck and wreaking random havoc.
I fixed it and haven't had a reboot this week by using tweezers and squeezing the posts that hold the power button arms in place tightly against the outer shell. The objective is to create as much resistance as possible and have the power button spring away from the mobo. The power button has rubber pads that, when pressed, pushes against the mobo power module, so to create more distance I filed down the pads a few mm's. If it happens again I will resolder the points and remap the keys, until then I went ahead and cleaned the solder points with a q-tip and rubbing alcohol.
Removing the outer shell takes some time to break the glue apart without damaging anything, so take that into consideration and move at insect speed if anyone considers this approach for the first time. The best reference I can spot is at http://www.youtube.com/watch?v=I3dAOv2Oke0&t=6m11s where the power button is on the right hand side of his right hand. I'll try taking photos or video if it happens again.

I'll try this
jfbs said:
I had something similar happen this weekend. This may not apply to everyone, but I found that after pressing the power button over the course of two years the thin plastic "arms" that hold the power button inside the case have become stretched and weakened. Went back to stock to eliminate every conceivable variable. It would continue to reboot even without touching it, with or without a case. Essentially, the power button is resting against the motherboard's power module, or rather stuck and wreaking random havoc.
I fixed it and haven't had a reboot this week by using tweezers and squeezing the posts that hold the power button arms in place tightly against the outer shell. The objective is to create as much resistance as possible and have the power button spring away from the mobo. The power button has rubber pads that, when pressed, pushes against the mobo power module, so to create more distance I filed down the pads a few mm's. If it happens again I will resolder the points and remap the keys, until then I went ahead and cleaned the solder points with a q-tip and rubbing alcohol.
Removing the outer shell takes some time to break the glue apart without damaging anything, so take that into consideration and move at insect speed if anyone considers this approach for the first time. The best reference I can spot is at http://www.youtube.com/watch?v=I3dAOv2Oke0&t=6m11s where the power button is on the right hand side of his right hand. I'll try taking photos or video if it happens again.
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Click to collapse
Again, all your symptoms are identical to mine so I'll try this and update on it ASAP. Thanks for the help!!!

Endless safe-mode loop after water damage

Hi all!
My phone got water damaged (a little bit, the back cover wasn't properly put) and the phone now turns on only in safe-mode, even if I reboot, pull the battery or do a factory reset. My volume-down key doesn't work now, if that could be the problem.
Does anyone know what I could do?
Thank you

Mine was doing the exact same thing, except my volume-down key acted as if it was being pressed down constantly. I spilled water on it while on a cruise and it wasn't the same. My phone would constantly mute and the volume overlay was constantly visible on the screen. I had the safe-mode on reboot several times, I'm assuming holding the volume-down during boot is what activates it.
My fix was pretty brutal, I popped the volume button off with a thumb tack, then uses tweezers to rip the volume ribbon cable out of the phone. I now have to go into the settings menu to adjust volume, but at least the phone is usable. My hunch is that water damaged the ribbon cable via the volume button.
The actual fix would be to replace the frame/back housing bezel for the phone. It's only about $8 on Amazon (http://amzn.com/B00K458DUK), however it requires removing the screen. My phone has been dropped a few times so I'm worried the screen won't survive a transplant. A replacement screen is $150, so I've just been dealing with no volume control for now.

I see... thanks for your input! I'm guessing mine is having the same problem. I'm not comfortable doing the brutal fix myself, but I don't know where I could take it around here to get it fixed.