Database Users

Unresponsive Touch Screen problem!! Galaxy S2

I have the problem with the touch screen when the phone is charging on the same cord extension with another phone (not with all phones and chargers). There are several options when a problem occurs. For example, when you charge the S2 and not the other phone it works perfectly, then when you plug in another phone it work's part of time and touch again becomes unresponsive, then stop charging the other phone and it works again. It helps to put the phone in standby and then wake up again to get all worked again. Also if you have a bed power supply on a computer and put the phone on USB there will be a similar problem. To resolve this you just need to charge your phone alone on the ext cord or socket . I think the problem is in voltage interference filtering. Sry for bad Eng
Here is a YT video.
http://www.youtube.com/watch?v=nc17W2zFESs&feature=youtu.be

Yes, i also have that problem.. it depends on charger i use. Lower the current from charger (pc usb), less the problem occurs... but problem always there if you are sensitive enaugh to notice...
Sent from my GT-I9100 using XDA App

Happens to me many times
It will be appreciated if anyone gives the solution
I use the stock charger and cord
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sahibunlimited said:
Happens to me many times
It will be appreciated if anyone gives the solution
I use the stock charger and cord
Sent from my GT-I9100 using xda premium
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Click to collapse
Solution is to charge phone separately . Its hardware problem, phone cant rectifie input voltage.

Same happened to my Huawei U8800.It has to do with how much mA we draw from the charger.I will try to lower the mA through voltage control and report tomorrow.
Sent from my GT-I9100 using XDA App

I have a voltage filter and with that it works perfectly. Voltage filter specs are:
1uF(X2)MKT+2x12mH+1uF(X2)MKT
+2x2200pF(Y)MKP +680KOhm
1A 250V 25/085/21 HPF

bandzo87 said:
Solution is to charge phone separately . Its hardware problem, phone cant rectifie input voltage.
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not at all hardware problem its due to the kernel........
device with stock kernel acts like unresponsive while in charging.....
when kernels like ninphetemine and siyah used by device, it wont happens at all due to modifications.......
its proven

gnan10 said:
not at all hardware problem its due to the kernel........
device with stock kernel acts like unresponsive while in charging.....
when kernels like ninphetemine and siyah used by device, it wont happens at all due to modifications.......
its proven
Click to expand...
Click to collapse
Voltage control is a nice backup solution as it lets you regulate input voltage as mentionned above. I tried to reproduce the issue without Voltage Control setting and there is indeed a voltage issue when having two devices on one charger. If I set Voltage control for charger to 500mA, problem dissapears. Only issue is that it charges slower, but not by much.

gnan10 said:
not at all hardware problem its due to the kernel........
device with stock kernel acts like unresponsive while in charging.....
when kernels like ninphetemine and siyah used by device, it wont happens at all due to modifications.......
its proven
Click to expand...
Click to collapse
I dont use the stock kernel, mine is DK.

I am using siyah kernel and problem is still there...
Sent from my GT-I9100 using XDA App

I would like to bump this post, as it's relevant to my phone atm. I installed the Omega 6 rom the other day (Android 4.0.3) and I only had this problem when I was charging, now I have the problem regardless.
I'm using an Elago stylus pen when I play "Draw Something", and with it, I can draw pretty much as if I was drawing with a regular pen. Sadly after installing 4.0.3 this is no longer POSSIBRUU!
I try drawing a small circle, and the circle will never "close" - if that makes sence... They will always look like an ugly "C"... Annoying the crap out of me, cause I'm quite a nitpicker - and I'll go back to 2.3.6 (Omega 10.4) if I don't find a solution to this issue soon.
I also tried "TouchScreenTune" to increase sensitivity - but to no avail.
Thanks for your time.

mad_max911 said:
I am using siyah kernel and problem is still there...
Sent from my GT-I9100 using XDA App
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Like karendar said you have to set the voltage input to 500mA for the problem to disappear or it will always persist
Sent from my GT-I9100 using XDA

Try a different charger. I experience this problem with the stock Samsung charger, but when I use an iPad charger, the screen is fully responsive.

Dr Zoidberg said:
Try a different charger. I experience this problem with the stock Samsung charger, but when I use an iPad charger, the screen is fully responsive.
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Click to collapse
Yes some chargers do not have this problem.I experienced the same problem with my old (and stolen) Huawei IDEOS X5.It has something to do with overcurrent while charging, this is my conclusion, because when i charge with a usb i don't have this problem.Same chargers are charging fine an HTC Desire.

st3chn0 said:
Like karendar said you have to set the voltage input to 500mA for the problem to disappear or it will always persist
Sent from my GT-I9100 using XDA
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And how do I do that...?
Sorry, I'm slow...
And to be clear; I would like my phone to be most responsive when I'm NOT charging it... That's a given I suppose =)

I think it can be lessened with some software tweaks.
Coming from a i9100G, in stock ROM and kernel typing is horrible when plugged and charging. After flashing a custom ROM, the problem was much less.

Problem solved. I CWM-restored back to my old 2.3.6 (Omega 10.4).

oooh, i have never try this

I am looking for a pen to use with my galaxy s2, also love playing draw something, is the pen you use good, any website links please?

THUDUK said:
I am looking for a pen to use with my galaxy s2, also love playing draw something, is the pen you use good, any website links please?
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Click to collapse
I'm using an Elago Stylus - and when your screen is responsive (as it should be) - it's an amazing pen, very precise and it's almost like drawing with a real pen. (appart from the fact that the tip is made of rubber and is soft).
If you have an issue with the screen -- like this thread is all about -- don't even bother getting a stylus. You'd be too annoyed.
This is the pen I use.

[Q]Weird behavior ...Freezing

Hi all
My HD2 with android CM7.2 freezes weirdly
It seems to freeze when processor is charged (playing video, game...)
Tried 3 differents Radio ROM without success (erasing dalvik cache)
Any idea?

Maybe low available ram? Too many widgets taking up ram space? Does it freeze on all games and videos or just high end games or large videos?

It seems to happen when the phone is warm on the backside
using GPS freezes my HD2 too

Dad57 said:
It seems to happen when the phone is warm on the backside
using GPS freezes my HD2 too
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Click to collapse
What is your over clock CPU value set to? Mine reaches temperatures of 117 and has no problems.
Sent from my GT-I9100 using Tapatalk

Mine is not overclocked.

Dad57 said:
Mine is not overclocked.
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Click to collapse
Are you under volted at all?

This might be a faulty motherboard with overheating CPU. You might want to try another ROM to be sure, but if it's it, you can say goodbye to your friend

Thx for your help
Tried 3 different ROMS with the same end.
But battery pins seems not normal especially the middle one.

Dad57 said:
Thx for your help
Tried 3 different ROMS with the same end.
But battery pins seems not normal especially the middle one.
Click to expand...
Click to collapse
Are you able to bend them back into shape? I don't think it's to do with the battery pins though, these would cause sudden reboots rather than freezes.

How is your battery life? You could just have a faulty battery where its not able to supply the currect voltage to the motherboard causeing it to freeze. But also check what your temperatures are, as i said above i go up to 117 farenheit when playing graphic intensive games. but i dont freeze lol. So it might be a bad mobo or a bad battery, thats where i would diagnose it to.

it seems to happen when charging
Possible?

Hi all,
Yesterday, when charging my phone using car 12V charger, my HD2 was getting so warm that it freezes immediately.
Weird problem that doesn't happen with my home charger

[Q] Screen Turns On Randomly Without Touching Phone

When I leave the Nexus 4 on a flat surface with nothing around it, it will randomly turn the screen on, wait the 30 second timer, then turn back off.
I did just install 4.2.2, but I hadn't used it enough before to say if it only started since then.
I'm currently unrooted, though unlocked the bootloader when I first got it so I do plan to root soon, would flashing a custom kernel like franco kernel possibly fix this? Or would this be a problem in the rom or a third party app?
In BetterBatteryStats I saw 2 Kernel Wakelocks that seemed to have a high ammount of wakes.
(Screenshots Attached)
And here's the BetterBatteryStats Dump File: https://www.dropbox.com/s/dbc2vn3littc0fp/BetterBatteryStats-2013-02-21_054751350.txt
Any help would be highly appreciated, thanks.

Possibly a third party app.
Sent from my Nexus 7 using Tapatalk HD

Was gonna say that I'm having the same issue, but mine only lights up when I charge my phone..

Sfkn2 said:
Was gonna say that I'm having the same issue, but mine only lights up when I charge my phone..
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That's normal bro. Mine does the same and so does every other phone I had.
Sent from my Nexus 7 using Tapatalk HD

scream4cheese said:
That's normal bro. Mine does the same and so does every other phone I had.
Sent from my Nexus 7 using Tapatalk HD
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Err I meant like, it keeps turning the screen on and off - like if the charger is disconnecting itself.

Sfkn2 said:
Err I meant like, it keeps turning the screen on and off - like if the charger is disconnecting itself.
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Click to collapse
Sounds almost like the charger has a short or something.

jsilvermist said:
Sounds almost like the charger has a short or something.
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Click to collapse
It does that with all sorts of different cables and chargers. Think I might have a loose USB port?

Maybe it's linked to the Daydream feature?

Sfkn2 said:
It does that with all sorts of different cables and chargers. Think I might have a loose USB port?
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Click to collapse
Not sure, guess it's possible, but even if it is lose I wouldn't expect it to effect it once it starts unless it gets bumped.
Also, what is the temp of the battery when charging? Not sure if it's true but I've heard that if the battery is over 40c it won't charge properly.
If you want, here's a really nice widget with temp on it: https://play.google.com/store/apps/details?id=ccc71.bmw
I would just be careful with anything to void your warranty until you figure out whats causing the problem, as I've heard a lot of stories about bad batteries, and shorts in usb causing the red light bug (For lack of a better name).

jsilvermist said:
Not sure, guess it's possible, but even if it is lose I wouldn't expect it to effect it once it starts unless it gets bumped.
Also, what is the temp of the battery when charging? Not sure if it's true but I've heard that if the battery is over 40c it won't charge properly.
If you want, here's a really nice widget with temp on it: https://play.google.com/store/apps/details?id=ccc71.bmw
I would just be careful with anything to void your warranty until you figure out whats causing the problem, as I've heard a lot of stories about bad batteries, and shorts in usb causing the red light bug (For lack of a better name).
Click to expand...
Click to collapse
Thanks for the link. I actually looked through the 'must have apps for the N4' thread under themes and apps, and Goku80 had posted a link to a battery meter that I just downloaded and installed moments ago. I have yet to see what the charge temp is, but I will report back tonight. Idle temp is around 25*c from what I've noticed just now.
The only thing I've noticed with temps so far is when I have my phone pulled in and I'm watching something on the phone. The phone gets really hot, and the system starts to lag badly. I would assume this is a fail-safe for the battery to not overheat by downclocking itself, but this is only a theory.
As for the red light bug, I saw my phone drop from 28% to 4% instantly out of nowhere yesterday, with no warnings. I immediately pulled the phone in, and watched the battery meter jump to 30%. According to the red light threads, I think it's a software issue with the phone shutting down completely when it thinks it's out of battery to prevent damage. Hopefully we'll never run into that issue ourselves.

Notification when putting N4 on wireless charger

When I put my phone on the charging orb, sometimes the screen comes on and I get the notification sound to indicate it's charging, sometimes I don't. Either way it charges. What gives?

ahandlen003 said:
Try it with ringer on vs silent. Your welcome.
Sent from my Nexus 4 using xda premium
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No, that's not it at all. My ringer is always on, yet I get the notification about 20% of the time and no notification about 80% of the time.
If I had to guess, it has something to do with charge level and time since last on charger. If the charge level is below a certain amount (60% or so, don't know the exact #) AND it's been awhile since the phone was on the charger, I get the notification almost evry time. If the charge is high OR the phone was recently on the charger, I get no notification (but it still charges fine).
Google probably did this so that it doesn't disturb you when you put it on the charger for a touch up during the day. I just want to know what the exact parameters are and if there's a way to modify them.

ahandlen003 said:
More importantly are you on a custom rom or stock?
Sent from my Nexus 4 using xda premium
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Completely stock.

I saw another site that said the notification plays anytime the battery is under 90%.
But that can't be right either. Yesterday I got the notification when I put it on and it had 91% at the time, later in the day I put it on the charger at 59% and no notification.
It seems random.

Mine does it too and when the sound comes on it only plays a millisecond of it sometimes and plays the full charging noise sometimes ... I'm rooted on project E.L.E with faux kernel so I figured it had something to do with that so didn't think too much about it
Sent from my Nexus 4 using xda app-developers app

Display problem when charging

Hi i have the latest cm-10.1-20130901-NIGHTLY-find5.zip and I have problems when charging while powered off: The display stays on while charging and the telephone overheats. Are there any fixes?
Best Regards ngt

negiot said:
Hi i have the latest cm-10.1-20130901-NIGHTLY-find5.zip and I have problems when charging while powered off: The display stays on while charging and the telephone overheats. Are there any fixes?
Best Regards ngt
Click to expand...
Click to collapse
Have you seen if this is a problem with other users? I'm using PAC ROM and have the same result with the screen being lit to a black screen when powered off and charging. I'm checking now to see if it overheats. It may be(and probably is) the screen on and charging at the same time that is causing it to heat up like that. My suggestion is to not charge while powered off if you can help it. A little warm is ok, but these quad-core phones can cook when that CPU is going.. I've felt mine to the point of needing to power it off with usage in the sun making it unbearably hot. And if it's getting HOT HOT.. than yeah.
3 things you can do.
1.Charge with phone powered on.
2.Go back to stock ROM where this was not an issue.
3.Work with the devs to try and figure out what is causing it. Be prepared to provide a logcat if the problem can't be reproduced on their end.
My phone has been charging off for about 10 minutes now and it still feels a little cool to the touch. Battery is 100% full. Not sure if that makes a difference. I'll keep in on charge for another 10. I'll update this post in a little bit.
**UPDATE** Its been on the charger for 30 minutes.. no heat increase. Note* I'm running PAC ROM AOSP ROM.

Batteries always get hot if you use them while they are charging. This is slightly harmful to the battery too, but if it only happens once or twice I wouldnt worry about it.
All AOSP roms on this device so far are afflicted by this problem. Just turn your phone on first and as soon as you see the boot logo you can plug it in. You'll get used to it.

shawnbon206 said:
Batteries always get hot if you use them while they are charging. This is slightly harmful to the battery too, but if it only happens once or twice I wouldnt worry about it.
All AOSP roms on this device so far are afflicted by this problem. Just turn your phone on first and as soon as you see the boot logo you can plug it in. You'll get used to it.
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Yeah for sure. It wasn't me with the issue but the OP.

Coreym said:
Yeah for sure. It wasn't me with the issue but the OP.
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Click to collapse
Sorry I didn't mean to quote you

all good my man
Sent from my Find 5 using Tapatalk 4

cyano forever
Hi have problem with the microphone and display while charnging... but I don't want go back!!! Bye ngt

Use cm10.2
Sent from my Find 5 using xda app-developers app

maxwen said:
Use cm10.2
Sent from my Find 5 using xda app-developers app
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maxwen, does cm10.2 for find5 have deadlocks like nexus 4 does?
I am waiting for the deadlocks to stop before I upgrade.