Develop Bugs

Dodgey touchscreen?jn

Just recently (about 3hours ago) myj touch screen has started going weird.
So like on webpages it will randomly pinch zoom ands when type random... ok wtf jyust now just hovering over the o key made it spam... simply i did a nandtoi.d restore could it be caused by that?
Sent using motorola defy

Ok ccool it just pressed the submit button wtf is going on... its randomly pressinjg stuff on my oscreen!
This specialI changed tOp swype and at least I can kinda type properly nope nvm it still randomly presS places on my screen..
This is ****ing special it stops if i unplug from my charger???
Sent using motorola defy

Are you using the stock charger or another one? I had the same problem with my Pulse when I was using a non-brand charger.
Sent from my Defy using Tapatalk

Wow seriously it was the charger? (No it was not a stock charger ) so that ebay seller isn't getting posative feedback... now all i can wonder is how a charger can cause such symptoms...
Oh and by the way.thanks for the info man id thank you if i could
Upon limited googling i found that its something to do with voltage potential which was actually one off my guesses when i found out it was the charger.
Sent using motorola defy

Have had my screen glitch-out, but just once, while on charger. Never happened again..?

Ayup, probably got something to do with the voltage. I guess there really is a good enough reason to pay extra for official accesories... Learnt the hard way.
Sent from my Defy using Tapatalk

same problem using original charger motorola in my car
-> with cheap inverter without "pure sine wave"
the screen had gone mad, the function is activated automatically
I immediately disconnected

hi there!
I have the same issue but i use the official charger and no accessories...
It seems to happen randomly and i have to hammer the home button and try and turn it off before it sends random txt messages to my friends... this is rather frustrating!! makes me look like an idiot when i send messages like: m/0or and Mkkkkkkkkkkkkkkkkkkk and mkmkmkmkmkmkmkm etc....
I have this happen at least every two days, it happened this morning, and last happened on sunday, even when on my homescreen i can see it doing random presses as i have the water and leaf background and you can see the water ripple where the random presses are??
Anyone got a fix for this? or is it just a shoddy phone?

I had the same problem when I used an Apple usb charger and the phone went mad and turned from 5% - 60% in 20 secs. I disconnected and had to wait to reboot.
Just to verify that things are fine with your charger, plug the usb cable to a pc or a laptop and check if it acts the same. If it does then wish you luck, if it does not then immediately change the charger converter that u use.

hello,
thanx for your reply
however as i already stated i use the stock charger and cable.... same behaviour either way... as sometimes i charge by USB but most of the time by the motorola charger and cable: this is not my issue
any other ideas?

Use your precious warranty. It's NOT supposed to behave like that. I use mine plugged in a lot of the time and has never experienced anything like that.
Sent from my MB525 using Tapatalk

defy plus and have the same issue !!!
with the original charger ...
any fix ???

Try this:
http://forum.xda-developers.com/attachment.php?attachmentid=718990&d=1315956450

Charging issue

Don't know if any of you have experienced this but my phone tends to not recognize a USB connection at times. Whether charging through an adapter or PC USB. When I plug it in nothing happens and the phone becomes very laggy. Basically unusable. I've tried 3 different chargers and 2 different cables. After a while it does recognize it if I just leave it there.
Also when its charging and working the phone becomes slightly laggy. Very usable. Not sure if its lag.. more like the touchscreen doesn't respond to touch well. Its a weird issue that's happened across different roms. Any input?
Sent from my SGH-T989 using xda premium

When plugging the phone in while it's on, it starts charging instantly. Sometimes it takes a few seconds when I plug it in while it's turned off though... When using it while charging, it'll start to heat up which will probably make it laggier. The last 3 phones I had (Atrix, Desire Z, and S2) ALL performed a little sluggish while on the charger to back that up. But unusable? No.
Honestly... if you've tried a different adapter, different cable, and a different outlet and it still doesn't charge instantly, then it sounds like a h/w problem.

Yea nowhere near instantly. For example I drained my battery till it died for calibration purposes. Got home and plugged it back in. It was about 10 minutes before the green charging animation finally came on. Completely unresponsive while off and it feels like the touchscreen doesn't work when on. Such a weird issue. At first I thought hardware.. but why would it not work and then work? Hardware is questionable but seems to be the only culprit at the moment.
Also about the slight sluggishness while charging, this is the first phone I've ever had that does this. And its annoying as **** since I do use the phone while its on the charger. Its nowhere as unresponsive as it is when it doesn't recognize USB but unresponsive enough for me to notice it. Unplug the charger and voila. Phones back to normal. Wtf?
Sent from my SGH-T989 using xda premium

My gs2 doesn't seem to be recognized by my computer or any other laptop I've connected it too. It charges instantly without an issue. But my laptops say that the USB device has malfunctioned and is unrecognized. My other gs2 can connect without a problem. But this gs2 wont connect. Only charges
Sent from my SGH-T989 using XDA

The USB malfunctioning is more then likely gonna be either the port or driver issues. You can always try reinstalling the drivers to see if it remedies the issue.
As for the touch screen being unresponsive when on the charger i have experienced that as well. normally a quick lock and unlock solves the problem for me.
Sent from my SGH-T989 using xda premium

Same exact thing happened to my last s2. I'm pretty it's the usb port on the phone that's messed up. Try cleaning it with toothbrush and bending the board up.
Or get it replaced and take care of it while charging!

[Q] Charging glitch [test your device]

Dear XDA members,
After using my hox for a few months, (i absolutely love it..) i noticed a weird glitch..
While using my hox through the day, its fine.. i have no problems at all.
but: when i charge it at night, and use it before i go to sleep.. the problems occur.
problem 1: overheating while charging, phone gives an warning with its led (red-green-red-green)
problem 2: this problem is more instant, shaking when scrolling..
its the last problem that i really hate about my phone, if it charges my touchscreen becomes "shaky".
if i open a web-browser and scroll without charger plugged in.. everything is fine.
but if only the metal housing of the usb plug is touching the chargerport of my phone it starts doing funny stuff..
if i keep my finger on the screen, (after scrolling.. when i just stopped moving my finger across the screen)
my screen scrolls up and down very quickly.. and wont stop doing this untill i let my finger go.
this results in an vibrating effect.. like the text is vibrating in my screen..
but when i unplug the charger.. this problem is gone!
then add the overheating problem, and my phone becomes pretty annoying while charging..
its burning my fingers (while charging it will get up to 50 degrees, just by using youtube..) and i cant read normally with one of my fingers
touching the screen, because it will vibrate.
does anyone else have this problem?
i have the HTC_E11 (western europe) and im running android 4.0.4 (stock, unrooted)
besides that, i did not unlock the bootloader.. its like it just came out of the box.
note: this only happens with ALL wall chargers.. from different brands.
(2 htc chargers.. one from my old wildfire S and my new charger AND an samsung galaxy tab charger AND archos tablet charger)
this does not happen when plugged in to an pc, so i think its an grounding problem?
same with browsers.. this happens with all apps and browsers that have the functionality to scroll.

Well about 1,5 years ago I had a spare Motorola charger which was only 0,5A out, but used it when some friends came over and use my charger.
Both my old HD2 and my gf's Desire S became fuzzy with the screen when its plugged. It was clearly mis-tapping where I tap my finger, by very huge margin.
It reminded me that. The charger was rubbish.
mostly trying to avoid using any mobile device while charging but I did play angry birds while charging my HOX a few times, don't remember such a heat.

My HD2 used to respond incorrectly to touch with the stock charger. My HOX doesn't do it however, But if I plug it in to my HD2 charger it sometimes goes a little crazy.
It's easy for electromagnetic interference from a transformer mess with the digitizer in the screen. This is true of any device with a capacitive touch screen.
As for the shaky screen, that would be caused by noisy power being generated by the transformer, rather than a nice clean sine wave. This is common when you overload an AC/DC converter power supply. Try using one that's rated for 1.5mA and see if it helps.
It's unlikely it will damage the device, but it will charge less efficiently and cause some crazy behavior while it's plugged in.

i tried it with my 5v(usb), 1.5A adapter that i got with my tablet..
same problem, but overheating of the accu gets a bit worse
my original adapter has 1A, how much ampere does your adapter have?

I usually charge with a 1.5mA charger. Having said that, a lot of chargers seem to just have a random number stamped on them. I have seen tiny little chargers that claim up to 5A and only actually supply 500mA or less, so they get very overloaded.
An easy way to tell is to see how hot the power adapter is getting. If its appropriately rated for the current draw of the phone, it should get a little warm while charging. If it's getting hot, it's not up to the job and should be replaced.
The charging current should be limited by the charge circuit in the phone, so the higher the rating on the power supply you plug in to to charge, the cleaner the sine wave should be and the less issues you should get. The phone may just get a little warmer when charging due to more current being available. Again, this should be limited by the phone though.

Sentinel196 said:
The charging current should be limited by the charge circuit in the phone, so the higher the rating on the power supply you plug in to to charge, the cleaner the sine wave should be and the less issues you should get.
Click to expand...
Click to collapse
The charger output is DC, I'm not sure what sine wave you're talking about.

[Q] Charging goes on and off, Software to blame?

Read on... before you just see the post and start flaming.
Been having a helluva trouble with my Galaxy Note II since a month now.
It all started a day in April when I was on a weekend break and my charger just stopped working. Not the charger, but the charger port. I even tried a few other chargers and none of them worked, whereas my charger worked on other phones.
So after the weekend without a phone I come back home and read some posts on XDA about moisture in the USB port. I blow dry the port with the hair dryer and things start working again. After a couple of days of flawless working, again the problem comes up. But it is nothing that a few 'frustrating' 20 minutes of fidgeting will not solve and so goes life.
There have been a few days where it has gotten so annoying that the phone simply wont charge no matter what I do and which angle I place the phone (yoga for phones, anyone?). The phone has even switched off completely at times. Yesterday was one of those days when it simply wouldn't charge.
So again I spend a lot of time on XDA and Google and what makes consensus is that there is moisture in the USB port, or there is something wrong (loose connection) with the USB port and it needs repair.
Few facts before we get to that, and my point about this being a software problem.
1. The charger, when it works, works flawlessly irrespective of whether it is on the table or hanging by the charger from the power outlet. I expect that in case there is a loose connection, the position becomes very delicate.
2. The charger, when it works after moving the wire around for a while, keeps disconnecting occasionally even though it has been placed on a stable table surface and no one is disturbing the table. After some seconds, it connects back automatically and begins charging.
2. The phone works without any problem whatsoever when I plug it into the Samsung car charger - never once do I remember it not working
Now here are my findings from yesterday after I almost broke the phone in frustration.
1. On a whim, I decided to do a factory reset of my device. After fidgeting with the phone for 4-5 hours and it not charging, it magically started charging after the factory reset.
2. After the reset and a 1 hour charge, I updated all the default software on the phone - including 1 samsung update, 1 allshare update, and 1 push service update. Within a few minutes of this update, the charger started showing the 'loose connection' problems again. I also noticed that at times the phone screen would switch on for no reason - for only 2-3 seconds.
3. Again I reset the phone, and force stopped some samsung services and disabled as many samsung services as I could and I could notice consistent charging.
I subsequently installed some apps (not going full out as I want to observe the behaviour) and occasionally the charging stops. I then go into the application manager and shut down some samsung services and more often than not the charging starts working.
After all this circus, I believe there is something wrong with the Samsung services, the phone device drivers, or the MTP service. It does something when it detects a cable being inserted and causes a malfunction of the phone. This is what it looks like to me.
In fact the same problem happens when I plug in the phone to the PC too. The connection keeps breaking and the phone is just not usable from the PC. However the interesting thing is that when the USB / MTP breaks, the charge is still working and the orange light is glowing.
So, finally the XDA relevant question. Can you guys help me find out if it really is a software problem or just some strange co-incidence? Are there any traces that I can pull out to see which app/service is causing the problem? There are many apps/services that I would like to disable, but they are greyed out - is there anything that I can do about them?
Mind you that my phone is not rooted - so all the usually available apps might not work for me. I use the phone as a corporate device and I can't violate rules by rooting the phone.
Any tips, suggestions, ideas, flames?

Hi I'm having the exact same symptoms as you I wondering if you got to the bottom of the problem? Many thanks
Sent from my GT-N7105 using xda premium

My wife has same problem with her note 2 since yesterday. I'll test and share the result.
Sent from my GT-N7100 using XDA Premium HD app

Are you sure it's not the cable? Because many stock cables tend to be crappy, just try another one if you haven't. It doesn't have to be just loose connection.
Works here fine without issues, so doubt it's software. I rooted mine almost immediately, so can't say much about that though.

Ive tried 3 different cables and every time I plug one in s voice launches lol
Sent from my GT-N7105 using xda premium

Could be a problem with newer Samsung phones and their construction. I have a friend who has a Galaxy S3 (not Note 2) who's gone through FOUR phones so far -- all of them with the same problem of the charging port dying after a while. T-Mobile's insurance company is starting to give him dirty looks, poor guy ...
He gets intermittent charging before the phone stops charging completely. Now his phone is hooked up to the charger constantly while he's at home because of battery issues, so it's possible he's putting excessive strain on the charging port. My thinking is that it's a hardware issue rather than software, but who knows with these things.
mudge

my friend's note 2 having quite similar problem, every time plug in the cable, the phone start charging after some minutes. not the problem of cable, i tested the cable and charger with my phone. Plan to send it to service center.
Sent from my GT-N7100 using xda app-developers app

Exact same problem for N7100 (international version)
I have been facing the exact problem described above. The service center has blamed water logging to be the issue. But seriously doubt it since the port seems to be working fine when it really functions. Also i noticed that when i restart my phone few times it starts to work fine(without me touching the charger cable or the charger itself). I guess its a lot to do with the software than the hardware

note 2 Gt-n7105 bootloops, with charger doesnt boot loop
Hi,
My note 2 seems to work perfectly fine when i connect my charger. But when I disconnect the charger when its full charge it turns off.
When I turn the phone on without the charger it comes on the screen where it shows the "samsung galaxy note 2 gt-n7105" its begins to boot loop.
Can someone please give me some solutions.

Has anyone ever solve this? I have the same on my S4....

I too have the exact problem of phone getting connected and then disconnected automatically in few minutes.

I fixed mine with the same issue

Power usage
Hi,
I first saw this when I was using my sat nav app in the car, I turned off the Performance optimised when plugged in option in favour of a lower power option and the problem went away. As I get more applications on my phone I see this more and more.
Could this be the power usage of the phone? The charge will supply 500ma, if the phone is already using a good portion of that the battery will not charge, so the phone shows the charge intermittently as the phone uses slightly more and slightly less power when the cpu, etc wakes and sleeps. More apps running uses more time on the cpu so more power. And of course as the battery gets older this would display itself more.
Just an idea based on what I've seen...

My Note 5 just started doing this, and only on the car charger using the Adaptive Fast Charge port. Charges for 2 seconds, off for 2 seconds, charges for 2 seconds. Using the normal port it charges fine, just slower. I have the Adaptive Fast Charge adapter at home and in the car, it works fine at home.

usb A3 usb issues
for mine it is intermittently not being recognised in file manager and also charging and then not charging round and round making beeping noises. This started when I dropped it partially in a bowl of oxtail soup. At the time it wouldn't recognise any cable at all. After I cleaned it with a cotton wool bud it was working again for ages but every now and then it wouldn't be explorable in windows. Now its acting up again, very difficult to get it to detect in windows, it starts charging when I plug in the cable but not in file explorer.
It's a real pain because its a samsung a3 which is difficult to open. I think really I will have to get it repaired - opened up and cleaned inside properly or have the usb port replaced.
I've watched many videos about mtp drivers and cleaning and bending the usb port a bit etc etc for many of you I think cleaning the port and/or bending the usb tab a bit would help, good luck.

Stop posting your damn problems so some one can answer it. Jesus look at the posts and see if there is an answer.l cuz you asking makes no difference because u have to scroll to the bottom to see an answer any ways. So just w8. Also ya it's software thing.... Samsung kinda sucks but what the hay I love them anyway even tho thay, including the expencive ones, are crap

HTC charging issue

I have unrooted stock carrier locked phone but recently my phone has been exhibiting statnge behaviour when charging. This all started happening after I had a big crash after I tried to use HTC connect... Usually when I charge my phone the screen might come on breify by itself once or twice and display that it is entering rapid charging or normal charging. But now I've noticed that the screen comes on at random times and stays on!
Google searches reveled that it can be a settings g in developers menu but I haven't even enabled that!
Another Google's search said it could be a faulty cable but I have taken very good care of my cable being careful to never kink it and when I try to wriggle it it doesn't seem to have a short.
Any help on this would be appreciated thank-you
Sent from my HTC 10 using Tapatalk

mhmm, does it charge the whole time, or does it connect, disconnect, connect disconnect?

mwake4goten said:
I have unrooted stock carrier locked phone but recently my phone has been exhibiting statnge behaviour when charging. This all started happening after I had a big crash after I tried to use HTC connect... Usually when I charge my phone the screen might come on breify by itself once or twice and display that it is entering rapid charging or normal charging. But now I've noticed that the screen comes on at random times and stays on!
Google searches reveled that it can be a settings g in developers menu but I haven't even enabled that!
Another Google's search said it could be a faulty cable but I have taken very good care of my cable being careful to never kink it and when I try to wriggle it it doesn't seem to have a short.
Any help on this would be appreciated thank-you
Sent from my HTC 10 using Tapatalk
Click to expand...
Click to collapse
Check to make sure that there isn't lint or something like that in the port. Something similar happened to me. You can tell if something is in there if you plug the cord in but it isn't seated properly and you can rock the cable back and forth when it's plugged into the port. If so, use a sewing needle to dig it out (power off first). When I did it I couldn't see it in there and didn't feel it at first digging around. After multiple times of plugging it in and having to push it in hard to get a good connection, the lint had packed down and it took a bit of scraping around in there to get it out

Haldi4803 said:
mhmm, does it charge the whole time, or does it connect, disconnect, connect disconnect?
Click to expand...
Click to collapse
It charges the whole time no problems...
xunholyx said:
Check to make sure that there isn't lint or something like that in the port. Something similar happened to me. You can tell if something is in there if you plug the cord in but it isn't seated properly and you can rock the cable back and forth when it's plugged into the port. If so, use a sewing needle to dig it out (power off first). When I did it I couldn't see it in there and didn't feel it at first digging around. After multiple times of plugging it in and having to push it in hard to get a good connection, the lint had packed down and it took a bit of scraping around in there to get it out
Click to expand...
Click to collapse
Thanks, that's a great suggestion, I will definately do this and report back.
Sent from my HTC One_M8 using Tapatalk

mwake4goten said:
It charges the whole time no problems... Thanks, that's a great suggestion, I will definately do this and report back.
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
Are you using a QuickCharge power adapter? The thing I've noticed, is that with QuickCharge it disconnects and reconnects between 55-65% (and therefore the screen lights up), in order to adjust the power output, so that the battery won't be harmed.

The_Android said:
Are you using a QuickCharge power adapter? The thing I've noticed, is that with QuickCharge it disconnects and reconnects between 55-65% (and therefore the screen lights up), in order to adjust the power output, so that the battery won't be harmed.
Click to expand...
Click to collapse
Yes! I am using Quick Charge in fact the stock cable and adaptor that came with my phone and the behaviour you mentioned is correct and it used to do that . But now it seems it is doing that and then the screen won't turn off... actually all this started happening after I had a catastrophic crash when trying to access HTC connect. The phone rebooted then since then, so I may try a factory reinstall although I admit but the two issues might issues might not be connected.
Sent from my HTC 10 using Tapatalk

Have you tried another adaptator ?
My view is your charger issue.

mattnash said:
you can also try to clean the phone charging port using old toothbrush and little amount of alcohol. I had the same issue with charging and it helped
Click to expand...
Click to collapse
this is the great tip. I have recommended it to my cousin and worked well. thanks so much