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Question about the power key

First off, I'd like to mention I'm new here, so if I'm posting this in the wrong place, please forgive me.
Second, the topic: I've had a problem with my power key for at least half a year now. As far as I can tell, it started after I accidentally dropped it (No harder than I usually would if I ever did drop it which is rare) with my otterbox case on it. I picked it up and tried to turn on my screen and noticed a long lag before the screen came on.
I didn't think anything of it until the next day the key wasn't responsive at all. I looked, and the key is not cracked, and there's no visible damage from the outside. I figured out if I shook the phone, or tapped on the button a certain way, sometimes I could get the button to work, but that was just unacceptable. So i found a fix in the application "Button Savior". Coupled with the volume rocker wake feature of my current ROM (Helly Bean 8/13 nightly)
But after all this time, I'd still really like my power button to work, so here are my questions:
1. Is this a common problem? Have you yourself experienced this, or have you seen others have this problem?
2. Any ideas on what is actually wrong with the button, and how I could fix the button mechanism? I'm not against taking the phone apart to repair it if that's what it takes.
Thanks in advance guys! :laugh:

Oops, sorry all, I've just read about the Q/A page. Please delete this topic.

Dropped my phone, won't boot?

Been a watcher on the forums for awhile, now I actually had to sign up and get some help, LOL.
Anyway, dropped my s2 skyrocket, noticed that it kept trying to reboot every now and then when I used it the same day. The next day, I plugged it in in the evening, and shut off, rebooted, but the screen would go black and the phone would vibrate with 2 seconds in between vibrations. It gets to the "Samsung" word, then the screen goes black in the style of an old tube TV (with the thin white line at the end). Then the vibrations start. So far a useless phone. Took it apart and checked connections carefully (I'm used to working with processor boards quite a bit).
What do you guys suggest? Damaged memory? Should I attempt to reflash? Stuck power button (seemed ok, though)? Bad screen?

Well, probably some kind of physical damage, but hard to say. Anyway, you posted in the forum for SGH-I777 but you have the SGH-I727, so I would suggest that you look in the correct forum.

creepyncrawly said:
Well, probably some kind of physical damage, but hard to say. Anyway, you posted in the forum for SGH-I777 but you have the SGH-I727, so I would suggest that you look in the correct forum.
Click to expand...
Click to collapse
Oh, thanks for the heads up. Yeah I just figured out that the i727 isn't in "Top Devices" or "Legacy," so you have to go to all forums. Ugg. Already moved. Thanks to whoever notified mod.
Anyway, yeah, any help would be AWESOME. What physical damage would prevent booting past the "Samsung" screen and default to a black screen that intermittently vibrates?

I'll be honest, if ur asking that question probably something u don't have the current skill set to fix. Try to Odin back stock, but if it started post-drop you may be SOL and in need of a new phone.

Got it into download mode after multiple failed attempts. Each time I would get it into download mode, the screen would shut off after about 5 seconds of being on. I tried several combinations of plugging it in first, then installing the battery, or holding down the button while I plugged it in with no battery, etc. I had just given up after getting it into download mode briefly for the 20th time, when I gave it one more go while rocking the on and off button. Technically that is recovery mode, but I let off right before plugging the phone in and it hit download mode and stuck.
So what I am thinking is the power button got jammed internally. I have heard of it happening on other forums. Even though it looks good and clicks upon external examination, the pressure circuit on the inside might be in contact. Anyway, just one theory.
For future though, I did discover that you don't HAVE to have the USB unplugged prior to getting into download mode. On the contrary, a power source must be present in order to register that the keys are pressed PRIOR to initiating USB input. Thus, you can actually remove the battery, plug in the USB (power source), then hold the volume keys while replacing the battery. Goes into download mode that way, too.
Will keep you guys updated. Might need a bit more help if the phone starts acting up again.
At this point, if the Download mode still holds ok, should I consider CyanogenMod, or is it easier to get back a good ROM from stock?

icenight:
Thanks for the reply. I don't understand much about smart phones or how they work, but trust me when I say I have had AMPLE experience with electronics, circuit boards, hardware, etc., particularly in the computer/laptop world. I code quite a bit of websites, and understand almost all things networking and OS. Just never really got into it with the phones.
Getting super excited to see the sheer amount of modding you can do though. Would love to break into a hardware modding world if it ever comes available. That's where it's at with electronics for me.

Well glad u got it sorted, lucky guy you are lol.
As for boards and the like, if it didn't work I would've suggested replacing the motherboard and/or power daughter board. But for a skyrocket may not be worth the money.
Since you're a hardware guy, maybe mess around with the phone and JTAG? Finding a way to unbrick without it would be very helpful

Since the problems started after a physical damage (fall) , I wonder how would Odin or wipe and flash might work !
Definitely a hardware damage...

Yeah, it kinda puzzled me, too. I believe the power button might have been internally stuck, but that's just one idea. Could have been a loose connection, too.
Can you lose some solid state memory with firmware on it, but the SS memory still be OK to right another copy on?

More than likely it was your power button
Sent from my SAMSUNG-SGH-I727 using xda premium

Screen not turning off after receiving a notification

Hi Collective Wisdom,
I'm using an unflashed Skyrocket with 4.1. For about three months now, notifications will keep my screen from turning off. It happens when it's both plugged in and not plugged into a charger - I receive a text, or an email, or whatever, screen flashes up to max brightness, and becomes non-interactive. If I hit the power button, the screen dims to normal levels and I can unlock the phone.
This is a problem for when I don't notice it's lit up, like when it's in my pocket or backpack. This kills my battery, for obvious reasons.
I tried turning off notifications but I'd really rather not live that way. What's the point of a smart phone that doesn't tell you when something's happened, after all?
Any suggestions?

LintelSoup said:
Hi Collective Wisdom,
I'm using an unflashed Skyrocket with 4.1. For about three months now, notifications will keep my screen from turning off. It happens when it's both plugged in and not plugged into a charger - I receive a text, or an email, or whatever, screen flashes up to max brightness, and becomes non-interactive. If I hit the power button, the screen dims to normal levels and I can unlock the phone.
This is a problem for when I don't notice it's lit up, like when it's in my pocket or backpack. This kills my battery, for obvious reasons.
I tried turning off notifications but I'd really rather not live that way. What's the point of a smart phone that doesn't tell you when something's happened, after all?
Any suggestions?
Click to expand...
Click to collapse
first off there is no 4.1, is it stock or custom rom
2nd read the stickies expicially this one, its right above ur post READ THIS B4 POSTING | THE MOST Common Questions Answered HERE , read question 25

vincom said:
first off there is no 4.1, is it stock or custom rom
2nd read the stickies expicially this one, its right above ur post READ THIS B4 POSTING | THE MOST Common Questions Answered HERE , read question 25
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Click to collapse
Alright. It's stock.

[Q] Power button not working

Hello all:
Today my power button has become nonresponsive. I've done nothing unusual with my phone but I do remember early in the morning it rather strangely vibrating 3 times while I was browsing something, and it wasn't a phone call nor an incoming text, and I'm wondering if that was a signifier of what was to come. In any event, the phone is functional otherwise, for I can still slide out the keyboard in order to wake the screen. However, I dare not let the battery completely run out, lest I not be able to turn it on anymore, and I can't do a reboot of the phone (or screen shot, for that matter) since the power + volume down button combo doesn't work; it just lowers my volume. Any help would be appreciated. Thanks in advance.

I had that happen once - just pop the back cover off & re-seat it, make sure it aligns properly. See if that fixes it.
Sent from my PHOTON Q using XDA Free mobile app

schmandroid said:
I had that happen once - just pop the back cover off & re-seat it, make sure it aligns properly. See if that fixes it.
Sent from my PHOTON Q using XDA Free mobile app
Click to expand...
Click to collapse
good advice.
before closing the back lid, try to push the button with your finger nails.
if you don't feel the click and just feel mushy, then you are screwed. I lost my camera button in that way from day 1 and I thought it's the way it is.
You have to expect a tactile feedback with every buttons.

[Completed] [Q] Phone acts like the hard power off button is pressed

Hi,
recently my Xperia SP came in immerse contact with water. I powered it off quickly, then dried it as much as I could.
I then turned it on, it was working for like 15 minutes, and then it suddenly shut down.
It now acts like the hard power off button is constantly pressed (vibrates 3 times when I plug it in/power it on/etc.).
Any help much appreciated!

Sounds like a water stuck between the button n the contact thingy (sry for bad english, not quite good at explaining things)
But i think theres still some water left there, should be fine after some time , water should evaporate on its own(wouldnt recommend having phone turned on cuz of possible short circuit)
Not an expert, but this sounds like the only logical explanation to me.

Hi,
Water damage such as yours is usually fatal I'm afraid.
Also, I see you are well familiar with your device section, so please ask there.
And note:
> General discussion > XDA Assist > The Purpose of XDA Assist [Please Read]
Thank you for understanding.
Thread closed.