yashsingh1/xdaforums huggingface dataset:
[G2 and Desire Z General] ianmcquinn:
Yeah, there are a few discussions about this on the forums already. It's most likely a capacitance issue. When your phone is just sitting on a table and you touch the display, you may not create enough capacitance with the touchscreen for it to register as a touch (as opposed to resistive touchscreens which needed only physical contact but were less accurate as a result). Touching the body of the phone basically creates a common ground or voltage reference point for the phone, allowing your finger to create the needed amount of capacitance (in technical terms, no longer a floating ground). Whenever I touch the screen while the phone is lying on a table, I just always make sure to rest either my thumb or ring finger on one of the edges.

A lot of factors will also come into play---whether or not your phone is in a case, type of material the phone is resting on, the level of humidity in the air, even potentially the type of shoes you are wearing. This is why sometimes it works and sometimes it doesn't.
[G2 and Desire Z General] Elegy:
yes! I just figured this out myself. merely touching the body of the phone makes the screen respond to my fingers.

well in that case its not really a big problem. from now on i just touch teh body with my middle finger while sliding with my index finger =D
[G2 and Desire Z General] wileykat:
Will give this a go tomorrow, I hope it doesn't work!!!.... I'm gonna be forever snoozing with 2 fingers now!!!
[G2 and Desire Z General] adavis159:
This seems to be temperature related (and it doesn't happen on a mytouch 3g)

I live in Minnesota and I deliver pizza. When I would need to call a customer to get into an apartment building, I would set the phone on top of the pizza bag and dial with one hand.

When I first got my G2 (early november) I had no problems doing this, then one day it wouldn't respond at all to touch. I still had my old mytouch 3g with me because the old number wasn't ported yet, and I was able to use that to make the call. It wasn't until later that I realized that the problem was caused by the cold and that I needed to touch the metal part to make it work, so I thought that the touchscreen on my 2 week old G2 had just died.

At room temperature the touch screen always works (I can silence the alarm while it's sitting on the table), but temperatures below 50F cause problems
[G2 and Desire Z General] FlyLikeAG2:
I started noticing this as well. Sometimes I'll hit the power button to turn my phone on from idle-state and then I'll drag the unlock button with to no avail! But then again, I do use my thumb to do it so maybe the capacitance by using the thumb isn't good enough to unlock it.

I use my phone at work a lot so in order to text while being discreet, I usually have the phone in my right hand and text / unlock the phone using my thumb. I doubt it is a defect but it had me worried too. Guess I'm not the only one experiencing this. (Although I must say, dragging my thumb to swype and using the side of my thumb probably is the reason why it sometimes doesn't work)
[G2 and Desire Z General] no6969el:
Back when I had my g1 it did the same thing and experience this on my g2....if its laying down its like it thinks its just on in your pocket so the touch seems limited
[G2 and Desire Z General] dhkr123:
Not weird. TOTALLY normal and expected.

It is because it has a CAPACITIVE TOUCHSCREEN.

This means that when you touch the screen, your finger is actually COMPLETING AN ELECTRIC CIRCUIT.

When the phone is lying on a table and you touch it, you are NOT completing the circuit since you are NOT touching the phone's body.

When the sensor is on, there is an electrical difference between the surface of the screen and the body of the phone. When you touch BOTH, you alter the electric field in that localized area of the screen. The sensor detects the change in voltage and determines the location of the contact.
[G2 and Desire Z General] TheNewGuy:
So how do I adjust the sensitivity? As I understand it I could increase the voltage to the screen making it easier to complete the circuit...such as through thin gloves.....
[G2 and Desire Z General] klmsu19:
This is mostly true.

Put the phone on the table and dont touch it and try to swipe to unlock.

No touch a finger on the phone body and do it again, itll work.

Doesn't seem to always fit that behavior, but more often than not.
[G2 and Desire Z General] dhkr123:
You don't. You should NOT even if you could. It would not work as you expect since it is NOT a matter of sensitivity, but of CONDUCTIVITY.
[G2 and Desire Z General] dhkr123:
It is not "mostly" true, it is PRECISELY true.
[G2 and Desire Z General] ianmcquinn:
No reason for the condescending tone in every post (or if it's not your intention to be condescending, you may want to restrain your constant use of caps). You had stated:

Someone was just pointing out that if this was "precisely" true as you put it, then the screen should never be responsive if you aren't touching the phone's body (since the circuit is, based on your reasoning, still broken). This isn't the case though since it does work sometimes. How could your statement be precisely true if it's known to be false sometimes (hence the "mostly true" comment)?

And it's actually not true. You are not completing an electric circuit. No current flows from your finger into the screen and no components within the phone are electrically coupled because of your touch. As you stated, you are altering the electric field when you touch the screen. This results in a change in capacitance in that area. Note, this change occurs even when you are not touching the phone's body, just to a different degree. Touching the phone will typically increase the amount of capacitance as opposed to when you are not though (since you are basically "grounding" yourself to the phone). The more capacitance there is, the easier it is to measure. If there is too little capacitance, the touchscreen's microcontroller will not register the change at all. Even if it does register the change, there will be additional filtering that occurs to that raw data either in the microcontroller itself or in software (or both).

This is why the screen works sometimes when you touch it without touching the rest of the phone. You are still causing a change in capacitance. The amount of change depends on numerous factors (this is what I stated in an earlier post). These factors effect how grounded both you and the phone are relative to earth ground (in the electrical sense, not geographical). Typically speaking though, if you are relatively close to earth ground, then you will be able to use the screen without touching the body of the phone. For example, someone stated earlier that the screen doesn't work when it's cold. Cold weather results in lower humidity/drier air and you being less grounded (basically why people see an increase in static electricity as well). Chances are that the touchscreen would work again without the touching the phone's body if you had physically been touching a large piece of metal with your other hand (to help ground you).

So in response to the other question posed, yes, technically by raising the voltage level to the touchscreen, it may result in a more sensitive screen since there will be a larger increase in capacitance when you touch it. It may also reduce the life of the touchscreen though, if not damage it completely, so not a good idea. It would be better to figure out the filtering mechanism if possible and adjust that in software. Not sure if any devs have looked into it (though my guess is that if it was simple, it would have been done already).
[G2 and Desire Z General] rewen:
I am so happy I found this thread..

Lately I thought my touchscreen was broken because I was unable to snooze my alarm in the morning (just as some of you seem to have been trying to do).

I think it's temperature related as suggested by the person who mentioned pizza delivery.. and I think this because it only happens on mornings where I've left the bedroom window open and it's very cool. My phone is often on a cold wooden surface. however even picking up the phone doesn't seem to help (I'll have to pay more attention next time) but after a few moments of struggling it eventually works (probably warms up in my hand and gets a better circuit).

I can also vouch that the screen works great with just a single finger on a flat surface, provided it's room temperature. I don't need to touch the body at all, and I do this a lot without issues (aside from cold mornings waking up to my alarm).
[G2 and Desire Z General] FrenicX:
This seems to be the case for me aswell. I also notice with all those factors added to my over calloused fingers that are sometimes fairly dusty.. the frequency of this happening is increased.
[G2 and Desire Z General] oldblue910:
I never knew the details on how touchscreens work. This is interesting stuff. I had noticed the same issue when not actually holding the phone bit never thought to associate it with conductivity.
[G2 and Desire Z General] Pat123:
Yep..Have experienced the same! However, if the phone is plugged in to a power source, the touchscreen works normally, you don't have to first touch the body of your phone to make the screen respond.
[G2 and Desire Z General] sanfran:
Thats not completly true.., why does it work on other phones without touching the housing of the phone?

I can handle this problem in normal daily use... but did you ever try to have the phone in a car holder and use it?

Br
[G2 and Desire Z General] TheNewGuy:
Yep... That's why I thought that increasing the sensitivity should work. I tested it and I can use the same pair of gloves that when plugged in to power can control the screen fine. ( you do have to press a little harder and move your finger a little slower) that when not plugged in could not control the screen. And if it is safe to do when plugged in...then it should be safe other times.. I figured it was set this way to be a good balance between sensitivity and battery life. However I for one would like the ability to use the phone with gloves on...

Also I read an article from someone at CES who was playing with a new phone (not sure which one, I think the nexus S?) Who noticed the screen was much more sensitive. (almost too sensitive) in fact they said the screen even worked when wearing thin gloves...
[G2 and Desire Z General] dhkr123:
You are a complete IDIOT.

Did you bother to consider the very VERY slight conductivity of the TABLE that it is sitting on? No, of course not. That would make too much sense.
[G2 and Desire Z General] dhkr123:
Low temperature = low humidity and low SWEAT = dry fingers = low conductivity.
[G2 and Desire Z General] dhkr123:
Those "other" phones you mention... have RESISTIVE screens. Not capacitive.
[G2 and Desire Z General] dhkr123:
Because the phone's ground is now tied in with EARTH ground... as are YOU, hence you have a complete circuit.
[G2 and Desire Z General] dhkr123:
Plugged in = earth ground, same sensitivity.

Are you starting to understand yet? What do you think would happen if you increased the sensitivity and had it plugged in? I'll tell you what would happen: your finger would be so conductive that it would trigger a very large area of the screen, and it would register a touch on one OR MORE... RANDOM locations on the screen.... aka "too sensitive".
[G2 and Desire Z General] ianmcquinn:
Actually, I did. My first post even said things may depend on what kind of material your phone is resting on. And what exactly are you trying to say by pointing this out? What part of my explanation are you trying to refute? This is your exact quote that prompted the discussion:

Based on that quote, you are saying the table shouldn't matter anyway. And based on the other responses you are giving now, you actually seem to be agreeing with/repeating me, so I'm not sure why there is such hostility.
[G2 and Desire Z General] TheNewGuy:
I still don't believe you. Do you know how to adjust it or not? You are not my papa, I can break my own phone if I want to!

This is america!
[G2 and Desire Z General] adavis159:
the mytouch3g (which has a capacitive screen) does not suffer from this problem, ever, at any temperature. Which is probably a good thing since it has no exposed metal parts to ground yourself to.
[G2 and Desire Z General] dhkr123:
Those definitely DO experience the same characteristic and no amount of typing more here will ever change that FACT.
[G2 and Desire Z General] dhkr123:
Go back and read the crap you wrote.
[G2 and Desire Z General] dhkr123:
Well, you are free to figure out how to break it on your own.
[G2 and Desire Z General] TheNewGuy:
And I will..... you just seemed so excited to offer your expertise I thought you must know SOMETHING I don't, but alas it does not seem that way. Forgive me for not being scared away by your use of CAPS, it is not that I disagree with the theory you wrote about, I already knew that. Its just that I work in the R/D section of my company and I help to develop, and refine things each day that other people insisted were impossible. The work at my company has changed many theorys... This has made me a person who needs to "see it to believe it"
[G2 and Desire Z General] Noonski:
Your using language that is a bad example for other users.

Luckily I can do something about that.

Reminder to others, Keep it Cool or we help you Cool Of.
[G2 and Desire Z General] Exanimus:
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.
[G2 and Desire Z General] EEaudio08:
So glad I found this. I thought I was going crazy.
[G2 and Desire Z General] Exanimus:
use the thanks button if u are satisfied ;)
[G2 and Desire Z General] Harsha Raj:
Guys I have both Samsung Galaxy SII and Sony Ericsson Live with Walkman. If I place both the phone flat on bed and touch the without touching the phone with hand, the GS2 works perfectly with proper screen response. But where as for the walkman, the fast swipes will be registered as a tap. So this depends totally on the phone? Different for different phone?

Also I would have to say that I flashed an ICS leak for GS2, the touch was unresponsive when on flat surface, but after I flashed back gingerbread official ROM no touch issues when on flat surface. So I guess this is software dependent too? But guys, there were many other users who had flashed the ICS leak in GS2 and dint face any issues.
[G2 and Desire Z General] rirozizo:
what i think is its not temperature related, its not gravity related... its static electricity related

the thing is, the phone absorbs static electricity fom you hand when you are holding it... when not holding, no matter how you put the phone, the screen will be unresponsive..... the only solution was to put a cover (a plastic one) behind it.... we couldn't play 4player reactor unless we put our hand below the phone, now with the cover, SOLVED!

—————

|RIROZIZO|

—————
[G2 and Desire Z General] ahmadTR:
it happens with my Samsung s9+ ,its a capacity issue and it is not a big deal..
[G2 and Desire Z General] CiscoKydd:
I am so glad I found this discussion! I just replaced the cracked screen on my Samsung Galaxy A02s. I couldn't, for the life of me, figure out what was wrong with my phone! I Googled it, feeling like an idiot for asking such a question. Ha! It makes perfect sense now!

Thanks
[G2 and Desire Z General] saurabhkap:
Did u find any solution
[Vibrant Themes and Apps] Sonnislav:
Can anyone tell me where I can find the following icon (name, location, etc.) circled in red in the following picture? I unzipped my frameres.apk and looked in the folders but couldn't find this particular icon (I want to color it)...

thanks!
[Vibrant Themes and Apps] s15274n:
maybe it is my work pc, but that icon is....

a red X
[Vibrant Themes and Apps] Alex9090:
I think its called "stat_notify_sdcard_prepare" in framework-res/drawable-hdpi. Not sure but it does look like that.
[Vibrant Themes and Apps] MWBehr:
You're looking for usb_android.png and you'll also probably want usb_android_connected.png for the connected image.
[Android Software/Hacking General [Developers Only]] juggernaut17:
I am by no means a computer or phone guru...just curious about things. Apparently i got a little to careless with my curiosity. I have rooted my phone using z4 and started to delete files I thought i did not need. At first I couldn't download anything from the market so I unrooted the phone and then reset it. I then got the message SORRY! The appication HTC Sense(process com.htc.launcher) has stopped unexpectedly. Please try again. I have factory reset the phone, cleared the sense data in settings that was able to get to...but nothing changes. Can anyone help me with this problem?
[Android Software/Hacking General [Developers Only]] jkat797:
it seems your home launcher program (sense) is the problem. try signing into your gmail and going to market.android.com on ur computer. then search for luancher pro, and click install. then once it installed on your phone, click the home buttom, and then check off "select as default" and then click launcher pro. hope this helps!
[Android Software/Hacking General [Developers Only]] jianC:
Or just re-flash the rom.. Don't delete data partition and you should be fine with all your personal settings kept when you re-flash.
[EVO 4G Q&A, Help & Troubleshooting] big_tiger:
I am currently doing the Universal Auto Root (linked below), and it seems it is stuck near the end.

[ROOT] ~~~ HTC EVO - Universal Auto Root ~~~ v2.2 (works with all version)(1/10/11)

It says it is currently waiting on the phone, but the phone is at the right area correct? I have the entire command prompt below, but the last line is oof course the issue.

What do I need to do? I don't want to fuc* anything up. :D
[EVO 4G Q&A, Help & Troubleshooting] xHausx:
Did it ask to flash anything?
[EVO 4G Q&A, Help & Troubleshooting] big_tiger:
Yes everything was working fine until that point.

I apparently just timed out of the auto script.
[EVO 4G Q&A, Help & Troubleshooting] AyyRayy:
I would of not used that in the first place. You should use adb and flash amon ra to save your rsa keys before gaining root access in the first place. You don't want to lose 4g all together.

Sent from Evo powered by CM7
[EVO 4G Q&A, Help & Troubleshooting] xHausx:
ohh, gotcha. To restart it all you have to do is run the openshell file to bring up a dos prompt. From there use 'autoroot makenandroid' and it should pick up where it left off

If tells you your phone is not in the recovery then you will need to go back the the bootloader and let it flash one more time then run it.

You have to be rooted to flash amon ra goof ball. :)

But it does make a backup of your 4G the first chance it gets.
[EVO 4G Q&A, Help & Troubleshooting] big_tiger:
Well I removed the battery and it booted back like I didn't do anything. yup i get the $, So i shouldn't use Universal root? What should I use then?

I have hboot 2.10 and hardware version 0004
[EVO 4G Q&A, Help & Troubleshooting] Shushunmire:
The new UnrEVOked works pretty well.
[EVO 4G Q&A, Help & Troubleshooting] kdelinux:
yes used this and make sure that it is on bug is turn on...
[EVO 4G Q&A, Help & Troubleshooting] big_tiger:
My phone will now only go to the boot loader, red triangle, and stay on the "htc EVO 4G" screen.
[EVO 4G Q&A, Help & Troubleshooting] xHausx:
The pc36ing never got flashed. You must do that per the instructions before going in to the recovery.

Also, once you are in the screen with the red triangle holding vol up and power will bring up a menu.
[EVO 4G Q&A, Help & Troubleshooting] xHausx:
You'll need to run the 3.70 RUU and start over.
[EVO 4G Q&A, Help & Troubleshooting] big_tiger:
Are you saying I didn't do this?

ok how do i get back to where I can do this?

EDIT: NM I didn't see your last post. I am having trouble with the RUU connecting with the phone. it shows up in the device manager, but says it cannot connect.
[EVO 4G Q&A, Help & Troubleshooting] big_tiger:
ok is there any way I can restore my phone from the bootloader (no direct connection to the computer necessary)???
[EVO 4G Q&A, Help & Troubleshooting] xHausx:
Do you have a sd card reader? You can put the ruu's pc36img on your sd card and flash it that way.

Something else you could try is loading your phone in to the recovery, so it shows the red triangle, and then running the file that says start recovery. If that brings up a green menu on your phone you can continue rooting
[EVO 4G Q&A, Help & Troubleshooting] big_tiger:
Yes I had to put the right pc36img on my sd card. It was a little hard to find a stock pc36img.zip file. I am currently re-rooting my phone, and has already moved farther than the last time. :p
[EVO 4G Q&A, Help & Troubleshooting] xHausx:
so... it worked that time then? :)
[EVO 4G Q&A, Help & Troubleshooting] kdelinux:
http://xdaforums.com/showthread.php?t=690762

http://xdaforums.com/showthread.php?t=701835

Try this. :D
[EVO 4G Q&A, Help & Troubleshooting] atori2001:
xHausx I apologize for pm'ing you first without posting here originally. Here's my issue:

I was trying to run the auto root v2.3 and now i am stuck right here....

#6 If you have to flash it manually just push Power to select "BOOTLOADER" and say Yes when it asks to flash the PC36IMG.zip. It will complain part of the way through about Boot Loader and/or radio errors and then skip them, this is normal. Once it finishes say No when asked to reboot and use the Vol Down button to highlight Recovery. Then press Power to select it.

#7 After a moment your phone should show a Red Triangle with an Exclamation mark inside, at this point the script will take back over and start to make a NANDroid backup.... ----> and now I'm right here <------

The script window closed and i am stuck on the red triangle screen. I think the smart thing to do for me is to use that RUU. but I'll wait for some feedback i go further.. Also i tried reading that logfile (see attached) and found certain lines where it said Out of memory while it was trying to write to the misc partition. Thanks for the help!

PS: its my wife's phone so she has my evo for now :(

Also forgot to mention i read the help that big_tiger received but i was also confused on how to flash for that RUU pc36img file.. bootloader or recovery??
[EVO 4G Q&A, Help & Troubleshooting] therealmkl:
xHausx -

I tried downgrading to something other than 3.7 with 2.10 HBOOT as I read somewhere amongst the thread that the auto method wouldn't work with that version.

Currently I'm stuck at this point:

Starting ADB server...

* daemon not running. starting it now on port 5037 *

* daemon started successfully *

Checking MTD configuration...

Phone uses the old block size.

Firmware version '3.30.651.2'

Battery is at 100 percent.

The ADB Shell does not have root permissions.

Pushing res\rageagainstthecage-arm5.bin to /data/local/tmp/rageagainstthecage-ar

m5.bin...

*This will take a few moments, please do not disturb this window or your phone

until it finishes...

Waiting for the phone...

Found the phone connected as 'device'

Got Root!

Checking for needed files...

Pushing res\flash_image to /data/local/flash_image...

I have the 3.7 RUU and can try running that and reattemping the Autoroot but I thought I read somewhere that if I have HBOOT 2.10 that this method doesn't work yet.

I looked through a lot of the pages but so far haven't found anyone else stuck where I am. Any thoughts on how to proceed?

Thanks in advance for all the help my friend.