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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.

is my tab bricked?

sucsessfully rooted my tab last night and downloaded some apks to it.
downloaded tiger woods and it was it the wrong screen dpi so i downloaded lcd dpi manager.
in my haste to play said game i changed the dpi without backing up my system and rebooted.
now tab will switch on (opening screen with samsung galaxy tab ect shows) and the internal lights are on but the screen is blank.
can get into the menu from holding down the power and volume button.
any help will be gratefully recieved as the wife is going to skin me alive when she finds out i have broke her new toy.

can enter odin mode if this helps.

Flash Stock Rom.
You are not bricked if you can enter Download/ODIN mode.
Good Luck !

Have you tried just letting it sit on black screen for a few minutes? Boot animation could just be broken.

thank you,thank you,thank you.
all sorted now but its only 4.0.3 not4.0.4 but can sort that at a later date.

[Completed] [Q] A Tough Bootloop Problem...

Good day to all. I'm here resorted to ask about my problem here because I really can't handle it. I been googling for days. I'm ran out of resources from both google and tablet. So, I hope you can help me here. Note I'm going to write this in FULL detail here, so expect this to be a extremely long post. (I been warning you) So here goes....
Anyone uses the brand Ramos?(kind of unpopular brand) I use Ramos W21, it's been using it around 1 year and a half, and it endured a lot of problems, but fixed by researching on online forums and apply various methods there. Now, I think it's finally gave up...
One time, when I opened it and play my usual apps and browsing, it caused the errors " unfortunately
google.process.gapps has stopped", unfortunately browser has stoped",and "unforturnately google play has stopped". Then, I tried to clear data the similar apps in settings as usual, and even disabling them. Then more errors exploded, and "unfortunately launcher has stopped" appears. The menu screen(where the usual wallpaper and shortcut apps are located) turns black, while my running apps are still there running. When I pressed the back key to exit the app, now only tons of errors from the launcher appears endlessly(while the screen is black.
The time I finally turned it off by hard reset it made its way to the main problem: the bootloop.
Okay, here's where the thing gets real. It opens with the usual ramos logo, but the next one is a silver flashing android logo instead of enlarged ramos logo with spinning fire from the letter o(which is NOT my usual boot up screen) When I turned it off, it reopens again up to flashing silver android logo and the cycle repeats, even with pin reset until battery dies out. No recovery mode, so I can't use it to fix this. USB connections can't be recognized when inserted to PC. And no, the tablet is not rooted, and I don't customized anything, no mods, and no fancy roms. Just using a stock rom.
So now what? All I have here is just a sd card slot, which I think there's hope in there. Right now it has two options, deal with it and fix with all of might, or repair it in the nearest repair shop(something that is pretty risky, a lot of fakes and robbers here)
Well, this is the first time I post here, so sorry for anything that goes wrong. Thanks in advance.

Hi, thank you for using XDA Assist. It sounds like a rouge app has replaced your boot animation. Rather than try to chase that down and try to fix it I'd flash the stock firmware and start all over. Unfortunately there is very little about your device on XDA. So you'll probably have to google that.

Solved!!!
Update: I FINALLY FIXED IT!!! IT WAS A MIRACLE!!! O.O
After I keep on wrecking it's power buttons and volume buttons, I discovered something decisive!
This tablet actually HAS RECOVERY MODE! Again, it has a recovery mode! However, the way how to input it is very unique compared to most devices, including other devices from the same brand!
Now having the power of recovery state, I first selected "wipe data cache". The old large Ramos logo with spinning fire appeared again! But it's still bootlooping. So I went back on recovery state, selected "factory reset" and boom, IT BOOTS LIKE BRAND NEW!!! (sacrificing my old data though)
Okay, I don't want this recovery mode powers to be kept only by me. So I'm going to share it to all Ramos users,especially the model W21, like right now!
1. To do this, you need power button and volume up button.
2. While bootlooping, hold the power button and volume button at the same time and it will turn it off(Then expect it to turn on back up again automatically)
3. When it opens up again to the small Ramos logo(no fire animation), now RELEASE the POWER BUTTON ONLY, and keep holding the volume up button. Note, this is important! If you do anymore than this, it will either black out, go bootlooping once again, or ultimately, nothing.
4. Keep holding the volume up button, then the ramos logo will disappear, and now it will enter to our holy grail, RECOVERY MODE! Congratz!
Now when you finally have a normal working Ramos tablet again, you may go there again by turning it off by "Power Off" (assuming that your tablet is open) then holding the power and volume up(then follow above!)
I hope this will help a ton for Ramos users! :laugh:

I'm glad you got it working. You should post your solution here, http://forum.xda-developers.com/general/general More people with your device will look there than in the Assist forum. Name the post something like [SOLVED] RAMOS Bootloop Problem

jd1639 said:
I'm glad you got it working. You should post your solution here, http://forum.xda-developers.com/general/general More people with your device will look there than in the Assist forum. Name the post something like [SOLVED] RAMOS Bootloop Problem
Click to expand...
Click to collapse
Well thank you then for the link. Gotta go there!

Thread closed.

[Completed] Black screen on samsung galaxy tab 4 problem

Ok so i have my sisters samsung galaxy tab4 ( sm-t230nu ) which she brought to me today.
Her screen went black, lights up and all but it stays black in color. Up down volume buttons work and u can hear them working, power button works, turns screen on and off, TOUCH SCREEN WORKS, on certain areas u can hear the noise it makes when u tap on the screen and apps. I pressed the power button alone for it to restart, it restarts but does not show samsung tab logo or anything at all just lit up black screen. I even went on YouTube to memorize the hard reset sequence of buttons u have to press in order to complete the reset and i did manage to hard reset. But screen is still booting up on a lit black screen. I removed the back cover, unplugged the battery and tried booting it up and still nothing. BTW its full factory, no root roms or anything of the sort. I need help on what could be the problem. Only thing i believe might have caused this was a recent update on the system. My sister sais a few days ago it gave her a notification about it and she clicked on yes. I dont know what version of android it had nor which it had updated to. Please help. Tablet is not that old. Thanks. If anything email me directly at [email protected] thanks

Hello, and welcome to XDA Assist! The best thing to do would be to register and ask your question here: Galaxy Tab 4 Q&A, Help & Troubleshooting. There will be experts there who can give you advice. You may have to reflash stock firmware to get the tab working again...
Good luck!

Black screen except for camera? J7 Crown. no USB debugging. Recovery mode access

Situation: Samsung Galaxy J7 Crown. Never messed with. USB Debugging not enabled No special permissions (no ADB). I am able to access the Android Recovery screen. Obviously wipe cache partition didn't help, nor Lacking storage booting. Other than the Recovery and download screen: I get the Power/Restart icons when booted normally. Reset works, but power doesn't turn the phone off. No phone calls, Yes notifications. Camera from lock screen comes on (triple click on home button) and touch screen works.
I've tried to trace out the lock pattern in the hopes its still working outside this specific situation. No indication that it is.
All i want is a few sentimental pictures. Although after an entire day of frustration, finding out that the only thing that works is the camera is kinda funny and ironic.
Ive looked on XDA forums, but I'm having no luck w/ exact situation, although I'm sure someone has been in the same situation or similar enough.
Spent all day looking at options (Odin?) and nothing looks like it would work out for me.
Knowing the camera works, makes me hopeful that a mirror would work? No reaction to lock screen pattern makes me think not.
Additional (maybe irrelevant) info. Shows up on home WiFi while Find My Mobile said it was offline (makes sense with Notifications/no calls)
Any advice? Just point me in the right direction if there is one.
If not i hope you appreciate the Irony here. Thanks
(I used to be not so bad tech support, but haven't been keeping up as of late, and today was a painful reminder. Take pity on me.)

Black Screen Except Camera - Galaxy J7 Crown
Hey there anick22! I was so glad to see a search result with something referencing the camera working, on an otherwise completely black screen! I was super bummed to see that noone had replied to your plea for help with this insane problem!! I hope you found a solution by now!!
My 2 month old Galaxy J7 Crown suddenly went black on me one day, and it didn't happen as a result of a drop, or spill, or any other damage. I don't recall having put any new or different apps on it, recently, either.
The triple click of the Home button does open the camera, and the screen lights right up, perfectly. It takes it's usual beautiful pics, and I'm able to use all of the camera functions. I'm even able to view any photos I took during that particular session, buy not any prior pics, because I'm unable to unlock the phone.
"Hey Google!!" also reacts, and will display the result of any question that I may ask it, but I'm unable to go into the answers, without the ability to unlock my phone.
I have been able to get the phone into safe mode, while attempting to power it off, by pressing the power button, and then tapping on "power off" (although this hasn't worked every time I've tried). While in safe mode, "safe mode" is displayed in the bottom left hand corner, but nothing else appears on the screen.
Upon powering up the phone, all of the normal things happen. It shows "Samsung" and goes on to the blue screen to show the "Trac Fone" logo, but once the phone is booted up, the screen is black!!
PLEASE tell me that you were able to find a solution to this!!! I went and purchased a new Moto G7, (since I had a Droid Turbo 2 in the past, and it was amazing!!), and I'm beyond ready to get back to my J7 Crown!! PLEASE HELP!!
Thanks so much!!!
By the way, I'm a newbie here, as If you couldn't tell!!