Develop Bugs

Screen Switches On/Off Continuously

Since a week ago my DHD screen started switching itself on every few minutes. The phone doesn't unlock but keeps lighting up which is annoying esp at night! I'm using stock 2.2.1 Sense so can't understand why this started happening. Reset or removing battery doesn't do anything either
Anyone else had this or found a solution?
Rich

maruchan78 said:
Since a week ago my DHD screen started switching itself on every few minutes. The phone doesn't unlock but keeps lighting up which is annoying esp at night! I'm using stock 2.2.1 Sense so can't understand why this started happening. Reset or removing battery doesn't do anything either
Anyone else had this or found a solution?
Rich
Click to expand...
Click to collapse
I had a similar problem with my HTC Desire. I found it to be a problem with the power / lock switch on the top of the device that was getting 'stuck'.
Can you confirm if what your experiencing is the same as if you were to continually press the power / lock button on the top of the phone?

Yes, it's basically the same as the power button being pressed. I wondered if it might be stuck but it doesn't look any different or stuck..

maruchan78 said:
Yes, it's basically the same as the power button being pressed. I wondered if it might be stuck but it doesn't look any different or stuck..
Click to expand...
Click to collapse
Just out of curiosity, could the phone have been exposed to water at any point?
It's indicating to be a hardware problem since you have the Somebody on HTCPedia.com was having a similar problem and this seemed to solve their issue:
I had the exact same problem and it was (most probably) also caused by exposure to water: I had the phone in my pocket while cycling through rain and it all got wet. Since then, the power button got stuck, as in it was always pressed but sometimes was getting released depending on how the phone was held. For me, this resulted in the batter being drained in about 4 hours since it kept bringing up ShutXP.
EDIT: Do not use a flux remover (de-flux) solution/spray like I described previously (now deleted). In my case it worked for about 1 day and then then button was completely irresponsive which is a worse problem than having it always pressed (if you take the battery out, you can't turn it on).
I was inspired by a solution in another forum. I used surgical alcohol that yuou can by at any pharmacy. The higher the concentration, the better (I used 90 deg).
Take the battery out first !!!
Effectively, you drop a few drops of alcohol inside (yes, inside!) the phone through the small cracks around the power button. I used a pipette but dipping cotton in alcohol and then squeezing also works. Don't worry about dropping to many drops of alcohol ... it dries very quickly. I then blew in- and shook the phone strongly (this was important) to make the liquid advance a bit inside and also to dry it. You then need to leave the phone to dry. You can speed that up if yo put it under a desk lamp.
All solved now. Power button now works fine. What happened probably was that humidity/water created a short circuit, giving the same result as keeping the power button pressed.
If the above doesn't do the trick, you can try to unscrew the plastic shield that covers the button, remove the external button and access the real micro-mechanical button that is soldered onto a very small pcb. You give that one a good clean, rubbing it generously with a small piece of cloth dipped in alcohol. You can also try scratching the surface between the button's soldered pins since that's where a short circuit probably formed in the first place.
Hope you fix it.
Click to expand...
Click to collapse
Original post link:
http://htcpedia.com/forum/htc-touch-hd-blackstone/2982-power-button-stuck.html
Hope this helps

Thanks a lot for the help. This is why xda is such a great forum. From this I worked out it is the power switch and after playing with it and seems to be working on for now. If the prob happens again I'll try the alcohol trick above.
Thanks again

maruchan78 said:
Thanks a lot for the help. This is why xda is such a great forum. From this I worked out it is the power switch and after playing with it and seems to be working on for now. If the prob happens again I'll try the alcohol trick above.
Thanks again
Click to expand...
Click to collapse
No problem at all, glad to be of assistance

Replaced my screen, now the screen won't turn on

Hey guys, I cracked the screen on my HOX so I replaced the screen with a unit from directfix.com
After double checking all of the flex cables I tried to power the phone on and I am getting nothing from the screen and the vibration motor is constantly buzzing.
The only signs of life is the red LED, the three capacative buttons will light up, and the aforementioned constant vibrating. If i hold the power button to attempt to turn it off the buttons blink several times then it seems to stay on after that.
Has anyone heard of a problem like this before? Its killing me not having my HOX! I had to put my sim card in my old iphone 3gs and I have to say that this sucks really bad.

Are you sure you've connected everything correctly? It sounds like there's something being shorted! I'd recommend you to dissassembly again, an assembly again BUT THIS TIME VERY CAREFUL. Best is if you use a video tutorial if you think you're not experienced enough.

nitrous² said:
Are you sure you've connected everything correctly? It sounds like there's something being shorted! I'd recommend you to dissassembly again, an assembly again BUT THIS TIME VERY CAREFUL. Best is if you use a video tutorial if you think you're not experienced enough.
Click to expand...
Click to collapse
Thank you for the advice. I disassembled the phone and carefully put it back together. I took care to make sure the flex cables for the LCD, vibrator/button strip, antenna, volume buttons and digitizer were all carefully connected.
Now the vibrate function seems to work fine as it just gives me a short pulse when I turn the phone on as it usually does. The screen however, still refuses to turn on. I made extra sure that its flex cable was put in the right way and that it was secured with the jaw bone connector.
This video here www youtube com/watch?v=OIeO0DueMcg&feature=youtu.be at about 6:00 shows that you can test the LCD midway through the assembly process.
I tried exactly that and the LCD would still not turn on. I am just hesitant to return it because I know that the chances of the screen being a complete dud are very slim.
Now when the phone is turned on the three capacitive buttons remain on which I know didn't used to happen.

Swilli89 said:
Thank you for the advice. I disassembled the phone and carefully put it back together. I took care to make sure the flex cables for the LCD, vibrator/button strip, antenna, volume buttons and digitizer were all carefully connected.
Now the vibrate function seems to work fine as it just gives me a short pulse when I turn the phone on as it usually does. The screen however, still refuses to turn on. I made extra sure that its flex cable was put in the right way and that it was secured with the jaw bone connector.
This video here www youtube com/watch?v=OIeO0DueMcg&feature=youtu.be at about 6:00 shows that you can test the LCD midway through the assembly process.
I tried exactly that and the LCD would still not turn on. I am just hesitant to return it because I know that the chances of the screen being a complete dud are very slim.
Now when the phone is turned on the three capactive buttons remain on which I know didn't used to happen.
Click to expand...
Click to collapse
Update: So I was thinking the phone was booting up all the way, but I just saw that my computer won't recognize the phone beyond making a connection sound; I just can't see it in windows. As i said the capacitive lights stay on, but if I fold the power button they blink 15 times exactly and the phone seems to power off. Should I assume the SoC is dead or gamble with a replacement LCD?

Swilli89 said:
Update: So I was thinking the phone was booting up all the way, but I just saw that my computer won't recognize the phone beyond making a connection sound; I just can't see it in windows. As i said the capacitive lights stay on, but if I fold the power button they blink 15 times exactly and the phone seems to power off. Should I assume the SoC is dead or gamble with a replacement LCD?
Click to expand...
Click to collapse
Hi, I'm in the exact same situation you have described above! Did you ever manage to work it out, what was the solution? Any info or help at all would be great, thanks!!

I did replace my lcd+digitizer as well as yous. And I had same problem. But it does work now.
1.open up your phone . Take all parts off, separated.
2. Take battery off.
3.Now connect power button.
4. Connect battery.
5.Switch it on (hold pwbt for 2sec), mobo+battery+power button itself.
6.Now wait 20 sec.
7.Now connect LCD ribbon(bottom one),make sure it's right in, push it in far as you can.
8.Now put it righ on bezel and connect digitizer ribbon.
9.Press pwbt and see does it work. If does put rest of stuff together and be happy.
I can make phototutorial on request.
I did it few times. The battery was touching the LCD ribbon and it comes of very little but screen comes off and I have to start all over again.
So make sure that ribbon it's not getting any pressure from battery.
Let me know does that help.
Sent from my repaired HTC One X

[Q] Problems with power button and no way to fix it, workarounds?

It seems that my power button has died on my Galaxy Nexus, which is a huge pain in the strategical locations. While I know how to turn the phone off should it shut down, I have no idea how to handle anything else. I have my friends CALL ME to be able to unlock the phone and use it.
There are some apps on Android Market that specifically state that they fix power buttons, but none of them work with the latest versions of Android according to the reviews (if there's any I've missed, let me know).
I know that the phone can be turned off using a charger, since plugging it in or out makes the screen turn on. But are there other ways to turn on the screen, since it's a phone and I'm mobile most of the time?
Is there another way to remap the keys on Android? Note that I cannot root my phone, so options like that are not good either.
Is there a way to remotely turn on Android phone with a tablet through some app? Since I'm carrying my Nexus 7 with me and it uses my phones internet connection to stay online. I tried to find an app that does this, but could not find any.
Any help is much appreciated! I do not wish to buy Nexus 4 at the moment because it isn't much of an improvement and sending it back to UK for warranty seems like a huge mess that I would rather avoid for now.
Thanks!

kristovaher said:
It seems that my power button has died on my Galaxy Nexus, which is a huge pain in the strategical locations. While I know how to turn the phone off should it shut down, I have no idea how to handle anything else. I have my friends CALL ME to be able to unlock the phone and use it.
There are some apps on Android Market that specifically state that they fix power buttons, but none of them work with the latest versions of Android according to the reviews (if there's any I've missed, let me know).
I know that the phone can be turned off using a charger, since plugging it in or out makes the screen turn on. But are there other ways to turn on the screen, since it's a phone and I'm mobile most of the time?
Is there another way to remap the keys on Android? Note that I cannot root my phone, so options like that are not good either.
Is there a way to remotely turn on Android phone with a tablet through some app? Since I'm carrying my Nexus 7 with me and it uses my phones internet connection to stay online. I tried to find an app that does this, but could not find any.
Any help is much appreciated! I do not wish to buy Nexus 4 at the moment because it isn't much of an improvement and sending it back to UK for warranty seems like a huge mess that I would rather avoid for now.
Thanks!
Click to expand...
Click to collapse
First, try pgm (slide 2 wake).
Secondly, why can't you root the device? Once you have your screen on, you can turn on USB debugging, and use to it reboot to recovery or fastboot.
Third, there's some experience from users that fixed their own device's power button.
Sent from my Nexus

Buy a new power button and put it in.
For Toro & Toroplus:
http://www.etradesupply.com/oem-samsung-galaxy-nexus-sch-i515-power-button-flex-cable-ribbon.html
For everything else:
http://www.parts4repair.com/samsung-galaxy-nexus-i9250-power-flex-cable/

kristovaher said:
It seems that my power button has died on my Galaxy Nexus, which is a huge pain in the strategical locations. While I know how to turn the phone off should it shut down, I have no idea how to handle anything else. I have my friends CALL ME to be able to unlock the phone and use it.
There are some apps on Android Market that specifically state that they fix power buttons, but none of them work with the latest versions of Android according to the reviews (if there's any I've missed, let me know).
I know that the phone can be turned off using a charger, since plugging it in or out makes the screen turn on. But are there other ways to turn on the screen, since it's a phone and I'm mobile most of the time?
Is there another way to remap the keys on Android? Note that I cannot root my phone, so options like that are not good either.
Is there a way to remotely turn on Android phone with a tablet through some app? Since I'm carrying my Nexus 7 with me and it uses my phones internet connection to stay online. I tried to find an app that does this, but could not find any.
Any help is much appreciated! I do not wish to buy Nexus 4 at the moment because it isn't much of an improvement and sending it back to UK for warranty seems like a huge mess that I would rather avoid for now.
Thanks!
Click to expand...
Click to collapse
I had a similar problem with my Samsung Captivate a long time ago. I used WidgetLocker and enabled volume wake function. It uses volume buttons to wake the screen. I'm not sure if this feature is still available, but it's worth a try. If it is not, you can ask for a refund. There are also several apps/widgets to put the phone to sleep. I used this combo for a few months before I got a new phone. Hope this helps :fingers-crossed:

I still haven't found a solution and these apps that say they are a solution, do not work on latest versions of Android. Any other options?

kristovaher said:
I still haven't found a solution and these apps that say they are a solution, do not work on latest versions of Android. Any other options?
Click to expand...
Click to collapse
download intellicover app from play store. does not require root

i think pgm is the solution, but you have to root the phone

I've managed to fix my power button recently, its a hardware problem. Do this only if you dont have warranty and are comfortable with opening up your Nexus.
Go to iFixit website and follow instructions to dissassemble the Nexus, its quite easy, a few screws and flat cable disconnects. Next, you need to remove your power button flex cable from the motherboard, do this by lifting the cable connector on the motherboard up and pulling it gently out.
Next thing is a bit tricky and you need to have pretty good sight and precision.
On the flex cable the button consists of 2 pieces, the flex cable and the button itself, which is like a black sticker sticked on the flex cable.
I've removed the sticker and the button that is glued to it with a scalpel (careful!!) and I've found actually rust and dirt on contacts (dunno how rust got there, i have expected dirt only), and then with my scalpel I've carefully scratched the dirt and rust of both parts of the button and its contacts on the flex cable. After that I've put the black sticker back on the flex as it was before (if it wont glue tape it with a small piece of tape) and return everything where it was and assemble Nexus back togeather. And voila! It works!
Keep in mind that I didn't have warranty so it was either open up and try to repair or toss a $200 device. Also, I'm not responsible for any damage that you do to your phone, this is just a brief description of my power button fix. Hope there will be more successful repairs :fingers-crossed:

I had to use volume_wake, while waiting for replacement power button. But this feature does not present on stock roms.

I believe i've read about remapping the hardware buttons; if you're interested, search google. I personally prefer and use smart screen on. I just wave over the proximity sensor and the screen turns on.

Try procedure described here: http://androidforums.com/samsung-galaxy-nexus/700265-power-button-not-working.html#post5797688.
I was very skeptical, but it indeed worked on my phone. Power button started to act normally again! I was amazed!

Wlld1 said:
I had to use volume_wake, while waiting for replacement power button. But this feature does not present on stock roms.
Click to expand...
Click to collapse
This would be the easiest thing to do if you're already rooted
Sent from my Galaxy Nexus using Tapatalk 2

dj_chapz said:
On the flex cable the button consists of 2 pieces, the flex cable and the button itself, which is like a black sticker sticked on the flex cable.
I've removed the sticker and the button that is glued to it with a scalpel (careful!!) and I've found actually rust and dirt on contacts (dunno how rust got there, i have expected dirt only), and then with my scalpel I've carefully scratched the dirt and rust of both parts of the button and its contacts on the flex cable. After that I've put the black sticker back on the flex as it was before (if it wont glue tape it with a small piece of tape) and return everything where it was and assemble Nexus back togeather. And voila! It works! D
Click to expand...
Click to collapse
Thank you so much for this! Mine just died an hour ago and I have already fixed it in under 20 minutes.

doomed151 said:
Thank you so much for this! Mine just died an hour ago and I have already fixed it in under 20 minutes.
Click to expand...
Click to collapse
Glad to be of help :good:

Solved the same problem with dj_chapz suggestion posted here http://forum.xda-developers.com/showpost.php?p=41282390&postcount=8
After I split in half the button I found oxidized contacts with green and black scurf. Cleaned it with little amount of ethyl - works perfectly!

dj_chapz said:
I've managed to fix my power button recently, its a hardware problem. Do this only if you dont have warranty and are comfortable with opening up your Nexus.
Go to iFixit website and follow instructions to dissassemble the Nexus, its quite easy, a few screws and flat cable disconnects. Next, you need to remove your power button flex cable from the motherboard, do this by lifting the cable connector on the motherboard up and pulling it gently out.
Next thing is a bit tricky and you need to have pretty good sight and precision.
On the flex cable the button consists of 2 pieces, the flex cable and the button itself, which is like a black sticker sticked on the flex cable.
I've removed the sticker and the button that is glued to it with a scalpel (careful!!) and I've found actually rust and dirt on contacts (dunno how rust got there, i have expected dirt only), and then with my scalpel I've carefully scratched the dirt and rust of both parts of the button and its contacts on the flex cable. After that I've put the black sticker back on the flex as it was before (if it wont glue tape it with a small piece of tape) and return everything where it was and assemble Nexus back togeather. And voila! It works!
Keep in mind that I didn't have warranty so it was either open up and try to repair or toss a $200 device. Also, I'm not responsible for any damage that you do to your phone, this is just a brief description of my power button fix. Hope there will be more successful repairs :fingers-crossed:
Click to expand...
Click to collapse
I just did this repair and I have large clumbsy fingers. thank you! I just had to remove corrosion between the button contacts and around. i dabbed nail polish remover (i'm not sure if that is a bad idea or not, but it got my phone working!) and did a little bit of scraping. on my sch-i515 there was a some clear plastic folded over the back sticker part that i had to get up, then i was able to get the black part up without having to fully remove it.

[Q] Power Button Failure

I had a weird thing happen. Earlier today I dropped my phone from approximately 18 inches onto a laminate surface. The phone was in a protective case. After I picked it up, the power button wouldn't work. The rest of the phone was fine. No scrathes on the case, no other types of hardware failure or signs of damage. I opened the phone up, removed the motherboard and inspected the entire system. Everything seemed perfect. I inspected the power button and there didn't seem to be an issue. I put everything back together, while paying close attention to make sure that all connections were secure. After reassembly there was still no change. So I have a couple of questions:
1. Can I jump the connection between the two power button connections (which I believe is how the power button itself normally activates the phone) to see if that's where the problem is so that I can establish if the power button is in fact the problem? Or will that short something out on the motherboard?
2. Has anyone had anything like this happen, or know of a place where the power button can be bought, etc... Any suggestons are appreciated! =)
Thanks!
Edit: I was able to find the connections to the power button flex cable. The two terminals were loose and I was able to pull them out a bit using a wooden tooth pick. I now have good contact and the power button is working perfectly. I recorded what I did and will post a video on YouTube in case someone ever has this happen to them. I don't know why an 18 inch fall would cause this type of issue, but oh well. Fixed is fixed.

[GUIDE] Poco m3 Deadboot TEMPORARY Fix

1. Open phone (watch disassembly vids online)
2. Unscrew top panel screws (except mi warranty sticker one, if you want to keep warranty)
3. Disconnect battery connector
4. Wait 20 secs
5. Keep power button pressed for 1 minute
6. Wait for 1 minute
7. Keep power button pressed and connect battery connector, then release power button after like 2-3 secs
8. Phone should be starting up (connect charger as battery may be low)
DO NOT EVER REBOOT OR SHUTDOWN THE PHONE OR YOU WILL GET THIS ISSUE!!
Note: There is a more permanent fix where you desolder some metal lids which cover the charging/logic ICs, but this guide is for those of us who can't/ can't afford to get that done.

(i made this account just for this)
thank you soo much , this worked multiple times for me , however would you mind telling me the steps for the "more permanent fix" , i have a friend at a repair center and if u tell me the steps i may be able to fix it

PhotonIce said:
1. Open phone (watch disassembly vids online)
2. Unscrew top panel screws (except mi warranty sticker one, if you want to keep warranty)
3. Disconnect battery connector
4. Wait 20 secs
5. Keep power button pressed for 1 minute
6. Wait for 1 minute
7. Keep power button pressed and connect battery connector, then release power button after like 2-3 secs
8. Phone should be starting up (connect charger as battery may be low)
DO NOT EVER REBOOT OR SHUTDOWN THE PHONE OR YOU WILL GET THIS ISSUE!!
Note: There is a more permanent fix where you desolder some metal lids which cover the charging/logic ICs, but this guide is for those of us who can't/ can't afford to get that done.
Click to expand...
Click to collapse
i never reeboted the phone again (but when i go out on a hot day with my phone in my pocket , when i reach home it will be off , so i have to do this temporary fix again and again )

HI @zeon_ , the more permanent fix was something I saw in some yt vids online, you could probably find it easily there, I'll also link some at the end of this reply.
I wanted to mention that the fix I mentioned in my post worked for me about 3-4 times before my phone shut off and wouldnt turn on even with this fix, I ended up having to get it repaired, but it wasn't very expensive and it works perfectly fine now.
Just wanted to give you a heads up because this fix didn't work forever for me as I'd hoped it would.
I'm sure that if you have a friend at a repair centre he would be able to figure out what to do, but here are some videos anyways. Most of them target a small metal lid on the bottom left of the motherboard, some say to remove it completely while others say to only remove the two larger caps under it, then reinstall it. They all claim that the metal lid is somehow shorting with the power circuitry underneath, resulting in the deadboot issue. Some also recommened replacing the power ic which I believe is in the larger shielding with the hole in the top to its right (seen in 3rd video). You might also be able to find longer length videos online.
Again, I don't know how reliable these are, proceed at your own risk. I would recommend just handing your phone over to a recommended repairer in your area after backing up and removing your data from your phone.

PhotonIce said:
HI @zeon_ , the more permanent fix was something I saw in some yt vids online, you could probably find it easily there, I'll also link some at the end of this reply.
I wanted to mention that the fix I mentioned in my post worked for me about 3-4 times before my phone shut off and wouldnt turn on even with this fix, I ended up having to get it repaired, but it wasn't very expensive and it works perfectly fine now.
Just wanted to give you a heads up because this fix didn't work forever for me as I'd hoped it would.
I'm sure that if you have a friend at a repair centre he would be able to figure out what to do, but here are some videos anyways. Most of them target a small metal lid on the bottom left of the motherboard, some say to remove it completely while others say to only remove the two larger caps under it, then reinstall it. They all claim that the metal lid is somehow shorting with the power circuitry underneath, resulting in the deadboot issue. Some also recommened replacing the power ic which I believe is in the larger shielding with the hole in the top to its right (seen in 3rd video). You might also be able to find longer length videos online.
Again, I don't know how reliable these are, proceed at your own risk. I would recommend just handing your phone over to a recommended repairer in your area after backing up and removing your data from your phone.
Click to expand...
Click to collapse
thank you very much