Database Users

[!] This phone needs a stronger Heat sink!

This is an amazing device. However, I figured out why the soft keys at the bottom are breaking! (By breaking I mean when you touch them, the light goes off and goes into a key lock disabling the menu key and the back key)
This phone most likely has a heat sink sitting on the bottom left corner of the device. When this phone is in a high temperature state (either lots of constant usage or a hot room) the heat sink begins to overheat causing the heat sensitive soft keys to think it's being held down.
Edit: (That or the GPU is sitting in the bottom left corner because i noticed when I run an emulator, it freezes the buttons really quickly. Especially if you get a text message in the middle of it)
therefore this is a HARDWARE error. Samsung, please fix this. Don't let this amazing device go down the ****ter. Either add a stronger heat sink, or like most laptops now-a-day, install a vent for the air to leave the phone.
Temporary fix?
Shut phone off for like 5 minutes, and place it in a cooler area.
Specs:
Stock Samsung Galaxy Firmware. Straight from the bell store. (I had to do a few wipes to exclude outside variables)
Phones these days are going to need a fan built in because they're getting too powerful.
I haven't made a forum search because I didn't want to get lazy and post this if I didn't find one.
TLDR: Hardware issue causing overheating.

I don't think the keys use heat. (Maybe it's a bug with the Bell variant). It's a capacitive touchscreen, so most likely uses electric current. How do you know the keys are heat sensitive?

it only stops working when its warm.

i use my phone constantly and i have never had this issue. actually, i have had two, as i returned the first one after two weeks for one that has the 3 button recovery enabled. not only have i never had this issue, but i have never come across any mention of it in any of the forums i frequent.

When I bought my phone, I was able to use both vol up+ home + Power, and the vol down + home + power, so I don't think I have the non recovery model.

I don't think mine has this problem or i haven't suffered from it yet anyway. Today the phone got really really hot, i was in an online multiplayer game whilst it was charging. I was aware the phone was becoming quite hot but i needed to carry on gaming lol anyway, for the first time i got a system message stating that 'battery charging had been paused due to excessive heat' so this shows the phone was hot. Well this finally got me off my game and i used the back key to exit without any troubles at all. You don't mention getting this error so does that mean mine was at a higher temperature?
I agree with andrewluecke about the keys being responsive to 'electric' and wonder if maybe you had sweaty/moist fingers whilst trying your keys, it does mention in the manual about irrational behaviour due to moisture.

I have a Bell phone and never once had this issue. I would take your phone back.

opensourcefan said:
I have a Bell phone and never once had this issue. I would take your phone back.
Click to expand...
Click to collapse
make that two
the OP definitely have a defective unit
maybe some one dropped it when it was being demo-ed or something like that
else it doesn't make sense why those buttons would be at those horrible conditions

AllGamer said:
make that two
the OP definitely have a defective unit
maybe some one dropped it when it was being demo-ed or something like that
else it doesn't make sense why those buttons would be at those horrible conditions
Click to expand...
Click to collapse
Well, I agree. I have the unlocked I9000 phone, and have never experienced this issue...

You probably have an intermittent fault caused by dodgy joints within the phone.
Get it repaired..

Nothing that could warm up is at the bottom http://www.careace.net/wp-content/uploads/2010/06/galaxy-s-disassembly-10.jpg (right)
Only the vibrator and the microphone

exactly, the stuff that warms up are the GPS and Wifi and those are at the top where the USB plug is

Yeah it's probably to do with a dodgy contact rather than heat, plus the touch buttons at the bottom are just an extension of the screen and so are capacitive, not heat activated.
Logicalstep

+1 for "never had issue"

You see that your buttons lock up when it gets warm and you automatically assume it getting warm locks up the buttons?
Ever thought that something in your phone was overloading and causing it to heat up at the same time causing the hardware keys to lock up?

sturmeh said:
You see that your buttons lock up when it gets warm and you automatically assume it getting warm locks up the buttons?
Ever thought that something in your phone was overloading and causing it to heat up at the same time causing the hardware keys to lock up?
Click to expand...
Click to collapse
And thats the increasing problem with XDA (and the internet in general).. It's becoming easier and easier for people to make ridiculous assumptions without proper proof. It's one reason why we should always question everything we see, if there isn't a reliable source, or proper testing.

[Q] G2 Screen Issues

Hello,
I've been having touch screen issues lately, since i rooted and switched to CM 6.1 a couple of weeks ago. The screen will work perfectly for a little while, but will inevitably stop responding. I'm using launcherpro, though i don't believe that's the issue- it happens regardless of which launcher I'm running (I've tried others and experienced the same issue. The optical scroll pad will still "sort of" work- better than the screen (which will respond to the occasional touch after the problem begins, but barely does). If I reboot, the problem will usually go away for a while again, but will recur. I wind up needing to fix the issue once or twice a day. I don't think it's a hardware problem because the reset fixes it, so I assume it is then software. Also, i don't remember having this problem with the stock rom. Has anyone else experienced this, or does anyone have any ideas?
Thanks!

Dunno how useful this will be, but have you tried reflashing CM?
Sent from my T-Mobile G2 using XDA App

Same problem here. But I've noticed sometimes if I'm using the phone not in my hand (on car dock or just on table) this problem seems to happen more...but when I hold it in my palm then works fine.
But sometimes it just becomes unresponsive. Am running virtous's rom on my g2. But I can remember having the same issue when running cm on my g1 days too. Reboot always fixed it, just gets annoying.
Anyone have fixes to this? Thanks!!
Sent from my HTC Vision using XDA App

I personally use GV 7 or sparksmod and. Never had a problem, these are the best roms I think for this phone.
Sent from my HTC Vision using XDA App

Been having this exact problem for weeks now. And I believe it is a hardware problem, probably some sort of short in one of the ribbon cables or the digitizer itself. Occasionally, actually 85% of the time I'd try to open an apparently and the phone would act if I held my finger down and then the apparently icon gets selected...very annoying cus it happens over and over a couple times, all I can do is keep trying until it does what its supposed to. Also with the on screen keyboard when I'm texting it'll act like I'm holding down on one of the letters and keeps bringing up the special characters to that letter...or ill tap delete to delete a spelling error and it'll end up holding it down and deleting my whole damn text and I can't stop it.
At first when this first started happening I could simply tap the screen and it would stop the crap it was doing and work fine. As time went on I noticed I kept having to hit it harder and harder for it to correct it. Wellllll guess what? Last night it was acting up horribly and I slammed my closed hand against it while it was on the desk and it cracked the LCD screen and now the phone is completely useless, even though the outer touchscreen is perfectly fine.
The restarting of the phone also usually fixed it for me as well but only for a few minutes.. which also makes me think its a short because after the phone is turned off whatever part is shorting out, that circuit is closed and just takes time until you press on the screen in whatever spot to cause the two parts to touch and create the short all over again.
Anyways that's my story...just don't get angry and slam down on the screen lol. This is my 2nd G2 and I'm tired of it, probably just going to get a nexus s or just go back to the nexus one, atleast it was reliable.

huh28 said:
Same problem here. But I've noticed sometimes if I'm using the phone not in my hand (on car dock or just on table) this problem seems to happen more...but when I hold it in my palm then works fine.
But sometimes it just becomes unresponsive. Am running virtous's rom on my g2. But I can remember having the same issue when running cm on my g1 days too. Reboot always fixed it, just gets annoying.
Anyone have fixes to this? Thanks!!
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
if you open the battery cover u can see that there are connectors that closes the whole circuit, so when u are holding the phone the back cover works like a grounding area that makes the screen responce to your touch. Acapacitive screen works like this: when you touch in any area on the screen, you simply are breaking the electrical field that the screen has, the screen "feels" where u break it and tells the operating system.
the electrical field depends on the human body a bit to make the circuit complete, so when u touch the metal parts of the phone, the screen works like it is designed.

Repair help?

I've searched far and wide to find a video or tutorial for my problem, but didn't find much.
My problem; my middle button (Windows key) has stopped working - it does work at times but you gotta hit her in the right spot. It does feel like there is some physical damage to the underlying components.
My question is, how would I go about solving this problem? My HTC is out of warranty as far as I know and I've found one person selling replacement keypads in the US (I live in the UK), but is the keypad the correct component to replace or should I be looking to replace whatever is underneath?
Thanks, Az.
Sent from my HTC HD2 using XDA App

I would rather pay money to HTC and make them repair it than buying it my self and doing myself anywayz,. it looks like its a physical problem, the button must be replaced.

If you want to, you can change the button, it's most likely it would be it the one's broken.
I deduce that you might not be too "experienced" with electronics as you were looking for a video on how to change this part or even how to open you PDA (even if I could totally wrong as there are many persons who like to have all the available info before proceeding).
Anyway, even if I haven't opened my HD2 (yet), I don't think it would be a problem, just be sure to be very careful when you open it, prepare yourself with all the necessary tools (little screwdrivers, I think you'll need a torxs T5 screwdriver, platic pliers, etc.), clean and illuminate your working area and proceed slowly without forcing anything.
To work with most of today electronics you'll need a very fine pointed soldering iron (or heavy skills in soldering, but it's better to have both) or two would be better, a magnifying lens lamp, pb free solder (even if you can use sn-pb solder with pb free solder); but all this stuff will be necessary only if you want to change the push button itself. I just saw how to take the HD2 appart and it seems like an "average" PDA disassembling, the only detail regards the final chassis disassembling, they ask to use a oven to soften three adhesive stripes, this could also be done with a good hot air rework station.
At the end, you'll have to decide if you want to change the push button or to change the whole front buttons board.
I hope this helps.
good luck

I have taken apart some many Tmous HD's, thank could do it with my eyes closed. But it is tricky. I think I'll make a video, and then post it.

I deduce that you might not be too "experienced" with electronics
Click to expand...
Click to collapse
You pretty much hit the nail on the head - well, I am experienced, just not any good, being into building and maintenance by trade, I'm more used to smashing and brute forcing rather than using careful precision lol.
I actually forgot about this post - what would you guys say about the volume +/- buttons? They're sticky, would I need to replace those too? And what sort of estimated parts price would I be looking at for both the buttons and a screen? I want to make sure I'm not overpaying. The screen itself isn't smashed, but the the top layer. I know it sounds like I've abused my HD2 in a bad way, but it did this to itself on a night out - I don't know how lol.
I've seen the screen part going for around £20. I have no clue on the bottom buttons or the volume keys. Would I be better off getting a dead HD2 for parts? And are there different part versions as such or are they universal?

[Q] Does running custom roms hurt the digitizer?(having to press the hang up key hard

My last HD2 had the hard end key press in order to get the touchscreen to work problem. I recently bought a new HD2, and don't want to run into this problem

michealmyers said:
My last HD2 had the hard end key press in order to get the touchscreen to work problem. I recently bought a new HD2, and don't want to run into this problem
Click to expand...
Click to collapse
If you want to avoid the problem and make phone last a lot longer use tablet tweaks so you have a set of touchscreen buttons/softkeys you can use and lock the screen with an app or widget that does that. Also only use the home or call button to power on your screen again. Also keep flashing roms to a minimum as it will make you use your power and back button more frequently.
But of course this means switching to android. Otherwise the best thing you can do is avoid using the phone.
Sent from my HD2 using xda vip edition

hengsheng120 said:
If you want to avoid the problem and make phone last a lot longer use tablet tweaks so you have a set of touchscreen buttons/softkeys you can use and lock the screen with an app or widget that does that. Also only use the home or call button to power on your screen again. Also keep flashing roms to a minimum as it will make you use your power and back button more frequently.
But of course this means switching to android. Otherwise the best thing you can do is avoid using the phone.
Sent from my HD2 using xda vip edition
Click to expand...
Click to collapse
indeed, its been the HD2s Achilles heel since day one, there are things you can do to minimize the issue such as already pointed out, using android and soft buttons, but I find that if I keep squashing the bottom right hand corner of the phone (Around the button) to keep all the different layers stuck together its unlikely the cable will fall out/get damaged which seems to be the biggest HD2 problem.

Forgot to mention you can also try to remap in wp7 button like this
call - power off
Home - back
Start - home
Back - any
The back button is more used than power button during normal use and may press in the same area as the end key.

So the rom doesn't necessary cause the touchscreen problem? Basicially, it's wear and tear on the device? If I were you using the stock rom, I would still more than likely run into this problem since the I would be using the end call key just as frequenttly hanging up phone calls?

michealmyers said:
So the rom doesn't necessary cause the touchscreen problem? Basicially, it's wear and tear on the device? If I were you using the stock rom, I would still more than likely run into this problem since the I would be using the end call key just as frequenttly hanging up phone calls?
Click to expand...
Click to collapse
Not directly of course, but depending on what type of rom you are using, how much you like using your phone, apps that have soft buttons, you may use certain keys more or less. For example you can only use one the end button turn on screen in wp7 which would force you to press on the digitizer cable at higher rate.
Also some rom's don't have end key end call enabled
But yes, it's the supposedly the wear and tear on the flex cable under the end and back key that causes touchscreen problems.
Sent from my htcLeo using xda vip edition

michealmyers said:
So the rom doesn't necessary cause the touchscreen problem? Basicially, it's wear and tear on the device? If I were you using the stock rom, I would still more than likely run into this problem since the I would be using the end call key just as frequenttly hanging up phone calls?
Click to expand...
Click to collapse
Personally, my orginal HD2 bought new at product intro lasted me 3 years. I never had any problems with the buttons. The digitizer failed and I think that was because I gave the phone to a friend to use for a few months when her phone died. She didn't use a case and probably carried the bare phone with putting pressure on the screen all the time.
I've have multiple HD2's and never had button issues. It's a matter of how you treat your hardware. Use a phone case where your keys are not exposed to being pressed accidently for long periods of time. Gently press the buttons...they don't need to be pressed hard for them to work.
As for the buttons to affect the touchscreen...the only way I can think is if the phone is crushed for periods of time over and over. I would think that would eventually have an affect on the digitizer.

hjhjhj said:
Personally, my orginal HD2 bought new at product intro lasted me 3 years. I never had any problems with the buttons. The digitizer failed and I think that was because I gave the phone to a friend to use for a few months when her phone died. She didn't use a case and probably carried the bare phone with putting pressure on the screen all the time.
I've have multiple HD2's and never had button issues. It's a matter of how you treat your hardware. Use a phone case where your keys are not exposed to being pressed accidently for long periods of time. Gently press the buttons...they don't need to be pressed hard for them to work.
As for the buttons to affect the touchscreen...the only way I can think is if the phone is crushed for periods of time over and over. I would think that would eventually have an affect on the digitizer.
Click to expand...
Click to collapse
I agree...my previous hd2 lasted about 4 years. It's an awesome phone! I have a HTC Sensation now, but personally, I think the HD2 is the phone of all phones! Wm7 looks amazing on the device! I purchased a screen and digitizer replacement from Amazon just in case in the future, and hopefully I can enjoy this phone a little while longer

there's two separate issues at work with the HD2, both kind of related due to proximity.
The first is the buttons, believe it or not, the HD2 wasn't designed to use the buttons much, don't believe me? go back to WM and see how much you use it compared to android and WP.
They use it significantly more than WM, and like all things mechanical, there is a usage limit to them.
The second issue is the digitiser, or more specifically the cable and PCB to it, this isn't damaged by pushing the buttons per-say, its more to do with flexing the cable. The root cause for this is the various layers in the LCD, digitiser and PCB, some of which are held together with glue that separates and allows the layers to move about a bit. this can also give the impression that the buttons are becoming dodgy and harder to get to work, which in turn makes the user press harder all of which flexes the cable back an forth underneath.
It probably has a lot to do with the climate you live in if your effected by the glue, hence why some folk don't have issues
but to answer your question if a ROM can damage your digitiser? no, not directly, but as pointed out, if you have separation and you use a ROM that means you push the buttons more, then you will speed up the process of the cable / PCB getting nackard.
edit, as I said tho, I try and keep all the layers together by squashing it through out the day, you dont even need to take it out of your pocket, just find the power button and squash with your thumb and forefinger above it, if I don't do it for a while you can feel the difference when you push the power button and even see that its not right

strange power button behaviour

Alright guys,
I already posted into the Android Q&A Thread because I thought it's Android related but it's not.
So I'm posting here again.
My power button drives me crazy .. I'll explain it in detail.
I can't turn my phone on using the power button, only by putting the battery out and in while connected to the charger.
BUT the power button works flawlessly after the phone started.
I tried 2 different android roms (gingerbread & jelly bean) and the stock wm 6.5 rom.
same result so far.
I can turn the phone on recently after powering it off using the power button.
just if I wait a few minutes and let it "cool down" it's not powering on anymore.
could this be related to any elecricity that's gone in the meantime?
checked the pins and they aren't bend. battery charges fine too.
I'm out of ideas so I hope someone is being able to help me.

Has Same Problems
It might be mainboard so need jtag ti rebuild checksume
Sent from my HTC Desire S using xda app-developers app

uhh I hope not.
don't know anyone who'd be able to do jtag for me

ok .. this is .. how should I explain it .. STRANGE!!!!
just tried to power on my phone using the power button as usual .. no effect.
I put the phone on my radiator for 3-4 minutes just to see if it makes any differences with a certain temperature.
and it's powering on again.
so the problem is the HD2 not having this exact temperature after being shut down for several minutes
WTF??

Hardware issue.
Maybe button board, mainboard. When it's at certain temp circuit/component working, when at lower temp circuit open/component failure.
Worth checking battery pins again for straight & cleanness & also perhaps another battery if possible just to rule it out fully ...

thanks for the reply.
I tried 3 different batteries so I doubt that's the case.
checked the pins again and they aren't bend or corrosion on it.
too bad I can't check the mainboard again or even replace it.
had to replace the touchscreen / digitizer and when I try to open the HD2 again now they both would separate from each other.

got another question.
is it possible to open up the HD2 without the problem of the digitizer and touchscreen separating from each other?
I'm not able to change the motherboard if so.

If assembled correctly centre chassis, LCD & Digi come out as one unit bonded in layers.
I assume your bonding of digi, lcd is not the best hence easy parting on first stage of lifting chassis from casing. Problem is all but the very best industrial strength tape is all but useless, I use pu40 adhesive spotted in high lift areas & near edges so easily freed for future strip & best tape I can find for the rest
If layers separate you would need to take great care not to put load onto the flex cables.
I would recommend reading the repair guides & videos again as bad technique will not help & simple point of pushing lightly on build sticker can make first removal step much easier.
Good motherboards are hard to find at worthwhile cost ...

the digitizer and touchscreen have already been replaced by me. it's been an already soldered version from Taiwan. Seems the glue used to fit digitizer and touchscreen together is as you already stated not the best.
I'll just bear with it and sell the HD2 for some low money. this phone drove me up the wall too often.

12dollar said:
Alright guys,
I already posted into the Android Q&A Thread because I thought it's Android related but it's not.
So I'm posting here again.
My power button drives me crazy .. I'll explain it in detail.
I can't turn my phone on using the power button, only by putting the battery out and in while connected to the charger.
BUT the power button works flawlessly after the phone started.
I tried 2 different android roms (gingerbread & jelly bean) and the stock wm 6.5 rom.
same result so far.
I can turn the phone on recently after powering it off using the power button.
just if I wait a few minutes and let it "cool down" it's not powering on anymore.
could this be related to any elecricity that's gone in the meantime?
checked the pins and they aren't bend. battery charges fine too.
I'm out of ideas so I hope someone is being able to help me.
Click to expand...
Click to collapse
Is it possible to use a key map app to remap this key? and you will see what kind of problems it have(hardware of software).