Screen problems on charge - Epic 4G General

Long story short: for some weird-ass reason, my phone's screen's touch sensitivity goes out of whack /only/ when plugged in. Thoughts?
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Take the phone back to sprint it's still under warranty.
Sent from my SPH-D700 using XDA App

Output of charger...
I have this same problem when I use charger that has less than 700ma output. I have an old blackberry charger from my storm that is only 500ma output. Anytime I use it to charge my Epic, the touchscreen will go crazy.
Randy

SF-IT-Guy said:
I have this same problem when I use charger that has less than 700ma output. I have an old blackberry charger from my storm that is only 500ma output. Anytime I use it to charge my Epic, the touchscreen will go crazy.
Randy
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Click to collapse
I have this problem and it is worse with certain chargers. I'm glad I'm not the only one.

I could imagine that if the power is noisy it could interfere with a capacitive screen. Hasn't happened to me though

Related

Gps drain faster than can charge?

Yesterday I left my house with around 75% battery left to drive 40 minutes or so using the Google Nav app. I also had it charging using the included data cable and a usb conversion plugin.
I was also listening to Pandora as it was navigating with the screen on low brightness. However, when I got to my destination, the battery was at around 45%. I know the converter piece isn't broke as my ipod charges fairly quickly via usb when plugged into that same piece.
Is the data cable that's included really that bad at providing enough power to run the phone, as well as a mild charging?
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Car vs Plug
Your car charger may be outputting at .5 Amp rather than 1 Amp; models exist for both. I do not pretend to know if .5 puts out more or less than GPS+Pandora; but your mileage may vary if you changed over to a 1.
I had a very similar issue this weekend. My problem was with overheating.
I left with my battery at about 60%, setup the GPS for travel. After about 20 minutes i noticed the charging light start flashing orange and green, and i noticed my battery was draining pretty quickly. The end result was that the battery was over heating (very hot to touch) and wouldn't charge because it was too hot, i had to remove the phone from the dock and put it in front of the air conditioner before it would continue to charge. This resulted in me holding the phone in front of the AC for about 2 hours because it could only last about 10-20 minutes before it would over heat again.
The dock is basically useless because the phone over heats, i have no idea if this would work differently if you start at 100%, but with anything lower it definitely fights to charge the battery and power GPS usage causing over heating.
Incase it matters i am using the Motorola P513 Car Charger (http://j.mp/cuOqWH) and the official car dock for the Incredible from Verizon.
That's definitely interesting. I wonder why they released something with that obvious of a fault. Major heat can't be good on the life of the battery.
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I had problem with charging while using GPS and listening to Slacker but that was with this cheap charger I had. Once I used a higher quality charger (dont remember amps) it was able to charge and use GPS and Slacker at the same time no problems. It gets to about 115 degrees though. Battery says 140 is too hot so I figure its ok. If it fries....sending back under warranty.
It's definitely important to charge at 1 amp and not .5 or .75. I fried my battery to the point where it wouldn't hold a charge. Its worth the money for the right charger.
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It's definitely important to charge at 1 amp and not .5 or .75. I fried my battery to the point where it wouldn't hold a charge. Its worth the money for the right charger.
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Thanks for the heads up
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When you guys have the phone in the dock with the gps on are you leaving the screen on as well? If so that could be a big killer of the battery expecially if you have your brightness set way up.
I just got back from a long road trip (22 hours each way) and noticed the phone would get warm if i had the screen on so I could see the map but if I shut the screen off it would stay pretty cool while charging. It will still talk and let you know when you need to turn even if your screen is off. Maybe something for you to try?
Just throwing this out there because of the overheating issues but Proclip will be offering the Incredible package soon. Not only can it be positioned right in front of the A/C but it will come with a charging cable that can be ran to a 12v(?) source cable such as an after market stereo's power cable.
Sounds like, for me, I will be able to get a solid stable charge and have it in front of the A/C for cooling if I get that problem.
Again, just throwing out what I'm planning. I emailed proclip and they said early June for a release date!
money226 said:
It's definitely important to charge at 1 amp and not .5 or .75. I fried my battery to the point where it wouldn't hold a charge. Its worth the money for the right charger.
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Click to collapse
Agreed. 9 times out of 10 when using a charger not meant for your device specifically, the charger has the wrong voltage and/or amperage or it doesn't communicate that the battery is full properly.
The wrong charger will either not work at all right away (best case), kill the battery slowly by overcharging it, or cause some immediate overheating issues through overcharging or improper charging (worst case).
tl;dr: buy your chargers from reputable places, specifically for your device! It's worth it!
I am still holding out hope that they will release the same type of car dock that nexus one has. That thing was almost perfect as far as car docks go. At least imo.
Sent from my ADR6300 using Tapatalk
I drove from Mississippi to Florida and never had an issue. In fact, I listened to Pandora without a single interruption the entire way. Thats just awesome that Verizon's network had a data connection through rural parts of Mississippi and Alabama. Most of my trip was off the interstate.
FYI, I was using the rocket fish charger from Best Buy. It didn't have a proper dock, so my phone set in a cup holder. It never over heated but was slightly warm to the touch.
gummehbear said:
I had a very similar issue this weekend. My problem was with overheating.
I left with my battery at about 60%, setup the GPS for travel. After about 20 minutes i noticed the charging light start flashing orange and green, and i noticed my battery was draining pretty quickly. The end result was that the battery was over heating (very hot to touch) and wouldn't charge because it was too hot, i had to remove the phone from the dock and put it in front of the air conditioner before it would continue to charge. This resulted in me holding the phone in front of the AC for about 2 hours because it could only last about 10-20 minutes before it would over heat again.
The dock is basically useless because the phone over heats, i have no idea if this would work differently if you start at 100%, but with anything lower it definitely fights to charge the battery and power GPS usage causing over heating.
Incase it matters i am using the Motorola P513 Car Charger (http://j.mp/cuOqWH) and the official car dock for the Incredible from Verizon.
Click to expand...
Click to collapse
gummehbear, I have the same car charger and same problem as you. I tried looking online to see how many amps that charger puts out but I can't tell. So our phone needs a one amp charger?
rkaplins said:
gummehbear, I have the same car charger and same problem as you. I tried looking online to see how many amps that charger puts out but I can't tell. So our phone needs a one amp charger?
Click to expand...
Click to collapse
sounds like what ever amperage it is, isn't enough. I have a verizon car charger in one car and one I bought at Radio Shack in the other and they both charge while phone is in use fine
As much as i would like to say its just the charger, i do believe it has something to do with the device trying to charge itself.
Yesterday I used the same setup as i did when i had the overheating issue, but this time i didnt have an issue. The difference was that the phone was at about 94% compared to the previous when it was at about 65%.
Yesterday the phone charged up to 100% before the overheating could become a problem.
I will continue to analyse it the more i use it, i am trying to figure out exactly what the factors are. So far from my experience i believe that if your device is charged up enough, you won't encounter this problem. It seems to be the charging event in conjunction with the GPS drain causing the battery to overheat.
I had the same issues on a trip to the Bay Area, up Highway 1 yesterday. The phone actually came up with a warning message that the charger I was using wasn't able to supply an adequate charge + power for GPS.
I purchased the Official car charger directly from Verizon and I have come across this issue. So the problem is within the phone, not the charger.
Sunlight: heat.
Using the device: Heat
Charging the device: heat
Is it hard to understand why its overheating?

Demand a HTC Charger Recall!

http://forum.xda-developers.com/showthread.php?t=717204&highlight=charger&page=1
This is in continuation to this thread.
I believe that we should demand a recall from HTC of their junky chargers. As of a couple days ago, my charger stopped working. In order to get it to charge my phone, I need to unplug and plug in my phone 20-40 times and get the physics of the connection PERFECT... if my phone moves 1mm, it will stop charging, so I need to have the phone somewhere that it will not move...
This is not the case with my Car Charger, so I know it is simply the phone charger itself that comes with HTC... they supplied us with $0.10 charger cables to save money, and we should demand a higher quality cable be supplied to us after buying their "Flagship Device"
Anyone else experiencing this problem?
Yes. My charging/USB cable has gotten loose. The Radio Shack one I bought with the phone works great. I doubt a cable recall will occur, however.
Yes mine does the same thing and I HATE it. I thought I was the only one
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Compared with the older style cables this one is a lot better
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I wish they would have kept the mini usb like for the hero and most cameras.
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Demand a recall? No. Should you ask for a replacement? Yes.
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*Facepalm*
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Surprised nobody suggested a class action yet...
Apple did something similar, so this might work.
I had an iphone, and got a notice that I needed to get a new wall plug due to defects in the ones that were released with the iPhone. So my new wall plug had a bright green dot on it to indicate it was new.
HTC could do something similar, couldn't they?
Wait, are you complaining about the charger plug or the USB cable? Replacement cables are, like, a nickel on EBay. Or you can get an adapter and use your old micro USB cables.
If it's the charger itself, you may get some sympathy from OEMs, but I wouldn't even waste the stamp (or email) for a cable. Just my opinion, of course.
both me and my buddies cables have done the same thing their super weak
I took a chance and bought 3 (I have 3 EVO's) of these adapters:
http://www.dealextreme.com/details.dx/sku.36150 - works perfectly.
Now all my BB and old phone chargers work - Take that HTC!
Mule
It's weird. I also have charging issues, here they are:
1. Occasionally, after charging for a period of time on the home charger, the EVO will light up and stop charging. I check the battery info and temperature is in the 20s, so i know that it's not a temperature issue. Then, after about 30 seconds or a minute, it will light up again and continue charging. I never touch the charging cable or connection and it does it on its own.
2. Using the car charger, the EVO seemingly decides that it doesn't like the connection. When i plug in the charger, the EVO will begin to charge, then after two or three seconds, go back to discharge mode. It takes me pulling the plug and reinserting (into the cig lighter port, not the EVO) anywhere from 3-100 times to get it to accept the charge demand.
Muledeer said:
I took a chance and bought 3 (I have 3 EVO's) of these adapters:
http://www.dealextreme.com/details.dx/sku.36150 - works perfectly.
Now all my BB and old phone chargers work - Take that HTC!
Mule
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Click to collapse
Exactly what I have. My wife and I can share one plug, she with her Hero and me with my Evo.
I don't even use the OEM one, I use my Treo Pro chargers and have not ran into an issue. The OEM just sits on my desk...I have had my EVO since launch date.
Treo pro OEM chargers are fairly cheap now.
Just my 2 cents.
Have a wonderful weekend everyone!
I am using Froyo update from HTC also.
Sent from my EVO
My Eris charger did the same thing after two months.. so now I'm using my ps3 controller charger usb cord, and its working teriffic lol.
Sent from my Eris using XDA App
Then pins that hold the cable get pushed in when this happens you dont get a good connection. I have seen a few come in to my shop. usually give them a cable I have laying around. Leads me to wonder what others are doing differently. I havent had any issues with either of my chargers and I will test and play games with it plugged up so I know I put a little stress on it.
tomp517 said:
I wish they would have kept the mini usb like for the hero and most cameras.
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Click to collapse
yeah that would have been nice, nice all my car stuff was mini usb
The physics of my connection are perfectly fine.
It's not the charger it's the port. There was a bad batch and it was fixed. Mine had the same issue and I couldn't charge my phone.

No touchscreen on a/c power!

When I use my sprint charger everything is fine I can use the phone/screen with no problems...but any other micro usb causes the phone to lock up on the screen....any1 else having this problem? Any solution?
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tcat025 said:
When I use my sprint charger everything is fine I can use the phone/screen with no problems...but any other micro usb causes the phone to lock up on the screen....any1 else having this problem? Any solution?
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Click to collapse
I made a post about this the other day. Mine seems completely random. My phone will completely lock up and it requires a battery pull. I can go a week using the same charger and it may not do it then out the blue it will lock up.
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It makes no sense at all! Never had this problem with any other phone ever before
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I had the same problem using a clone travel charger from ebay. I also had a clone usb cable that won't recognize the Epic as a mass storage. I bought from this guy on ebay that sells OEM Samsung accessories and they all work perfectly for me.
Be very careful with these things, folks... many charges can have terrible voltage regulators on them. You don't want to kill a very nice phone now, do you. Stick with a good charger and cable. I use the stock cable and the Palm Pre charger cable. I've never had screen issues or lockups with other chargers, but I only use the Palm and Samsung chargers, to be honest.
Yes, be wary of cheapo chargers!
I was able to get a OEM Blackberry MicroUSB charger off amazon for about 4 bucks shipped and it works fine to charge my Epic. My friend also gave me one of her extra HTC chargers which came with her EVO and they also work fine.
my charger is a 800ma sanyo which should not cause issues. I have not had the issue within the past week either.
Guys, check the output voltage of your chargers... specially on the cheap ones. its supposed to be no more than 5V. I broke my Hero's screen with a cheap charger with 5.5 V output. It starts by acting weird , then it looses touch capability when its connected and then stops working at all...

Transformer's touchscreen unresponsive while charging.

I searched and can't seem to find any threads on this topic. Odd thing is I don't get any SOD or RR on ICS but can't use my damn tablet if its charging lol. Anyone have any input on this?
just for giggles. switch the orientation of the wall charger plug and try it.
I've seen this when charging on a plane. I assume it has something to do with the voltage being supplied.
Are you using some kind of third party charger? These have been known to cause problems on any sort of technology.
I have seen this on my wifes tf once before, never on mine or my spare...
But with 50% of my micro USB cables it will happen on my infuse... Most frequently while charging in the car. The issue seemed to be a combination of crappy cables and crappy chargers and heat... If my phone was hot it was far more likely to occur than if it was cold. I haven't charged my phone via a plug on months though, I have 4 batteries I rotate, keeping 3 charged at all times
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Black Box said:
I searched and can't seem to find any threads on this topic. Odd thing is I don't get any SOD or RR on ICS but can't use my damn tablet if its charging lol. Anyone have any input on this?
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Click to collapse
I think it's a voltage thing. Im a long distance courier and i have an ac adapter in my van. When charging through a regular wall socket everything is fine. Yet when plugged into my inverter the screen is not responsive, as soon as i unplug it is fine. I typically use my tablet for netflix while im on the road. So i usually end up pressing play then plug it in. My inverter is rather weak, i was thinking of buying a higher output to see if it corrected things.
This post doesn't really help you, just letting you know you're not alone. If you can't charge while plugged into a wall socket, perhaps your charger is defective and is not sending out the proper current?
Good luck, i hope you find a solution.
Sent from my Transformer TF101 using XDA
Hmm. Most likely its my third party power adapter. It's odd that the transformer won't allow variations in voltage. I've never had an issue with any device in the past 10 years using third party power adapters. Guess I'll have to spring for a 30 dollar asus charger . Thanks for the input guys.
Enercell AC adapter cat no. 273-358 with the USB connector piece. from radio shack
Been using this adapter for several months with out a hitch. Plus it has a 6 foot cord... Score!
Sent from my SAMSUNG-SGH-I997 using XDA
Same thing happened with my SGS.
So, it's not a TF only problem.
Happens on Nook Color too.
Sometimes it's not just unresponsive, it's erratic and causes touch events to register all over the screen for no reason. These happen only when plugged in so I assume there's some voltage issue.

[Q] Can I damage the battery using a lower amperage?

I have a ton of Samsung and HTC chargers from all the phones I've had over the years. Enough that I have these chargers placed throughout the house in any place I may need to charge a phone or device, and travel with the HTC/Samsung chargers.
I noticed the HTC and Samsung chargers put out 5V at 1.0A, however the LG charger that came with the phone puts out 5V at 1.2A. If I use the existing chargers putting out 1.0A, can I damage or lessen the life of the battery in my new Sexy Nexy?
It won't damage your battery, it is actually better to charge it with the weaker charger but it will take longer to fully charge
No, the phone will take what it needs. It doesn't take full whack constantly, it depends how depleted the battery is. Anything with an output lower than 0.8A and you'll probably notice longer charging times. That's it
On many devices, using a low capacity (or poor quality) charger can create some touch screen issues with responsiveness. It does not damage anything, but makes interacting with the phone problematic.
Sent from my Nexus 4 using xda premium
Since we are discussing it anyways, can I damage my device using a charger with higher amperes?
I wonder if I will kill my HTC Desire using the 2A charger of my N7.
Dr Zoidberg said:
On many devices, using a low capacity (or poor quality) charger can create some touch screen issues with responsiveness. It does not damage anything, but makes interacting with the phone problematic.
Click to expand...
Click to collapse
Actually, this is exactly why I asked. I had the phone plugged in to an HTC charger, and noticed the screen responsiveness was crap. Enough that it caused concern, and made me want to post
Thanks for the edification!
DiggHead said:
Since we are discussing it anyways, can I damage my device using a charger with higher amperes?
I wonder if I will kill my HTC Desire using the 2A charger of my N7.
Click to expand...
Click to collapse
Probably not, but if you noticed excessive heat then you shouldn't use it
Can anyone explain the technical reason behind a lower-amperage charge causing screen sensitivity issues?
[/COLOR]
DynamicRam said:
It won't damage your battery, it is actually better to charge it with the weaker charger but it will take longer to fully charge
Click to expand...
Click to collapse
Hi,
What about if I charge my LG nexus 5, which comes with a 5V 1.2A charger, using a Samsung Galaxy S charger (5V 0.7A)? I know it would take longer, but would it ruin the battery?
N3tMast3r said:
[/COLOR]
Hi,
What about if I charge my LG nexus 5, which comes with a 5V 1.2A charger, using a Samsung Galaxy S charger (5V 0.7A)? I know it would take longer, but would it ruin the battery?
Click to expand...
Click to collapse
No it won't
DynamicRam said:
No it won't
Click to expand...
Click to collapse
Great.
Would you suggest me to use a 0.7A or 1.2A charger?
Or it won't make any difference?
N3tMast3r said:
Great.
Would you suggest me to use a 0.7A or 1.2A charger?
Or it won't make any difference?
Click to expand...
Click to collapse
if you use your phone while charging use the 0.7A, if you don't, use the 1.2A
DynamicRam said:
if you use your phone while charging use the 0.7A, if you don't, use the 1.2A
Click to expand...
Click to collapse
thanks for the tip.
may i ask why? just for curiosity
I have the original charger, HTC desire, HTC one s, some old windows phone lg charger, Samsung wave 2 charger and a generic HTC charger in my car. Never had any problems with any of them on any device. The only thing I notice is the car charger charges slower then the others.
Sent from my Nexus 4 using xda app-developers app
Ajfink said:
Can anyone explain the technical reason behind a lower-amperage charge causing screen sensitivity issues?
Click to expand...
Click to collapse
The technical details behind this is that having a low amperage charger connected causes the digitizer of the phone to take less electrical current, because the battery will be taking most of it, so it will do this chaotic thing, especially when you put two fingers on a horizontal position and swipe up or down. That's also because of some static electricity problem caused by having an electrical flow from the wires to the battery which makes the digitizer lost.
So, this:
DynamicRam said:
if you use your phone while charging use the 0.7A, if you don't, use the 1.2A
Click to expand...
Click to collapse
is probably the other way around, since you need a bigger amperage to properly use the phone.
There is absolutely no way lower amperage in any circumstances can damage any circuitry of any sort.
The amperage is simply the amount of energy that is being sent into the phone. Less energy = Slower charge time.
If you give too little amperage to a computer, for example, It will simply not turn on, or if it does turn on, randomly turn off.
ReCreate said:
There is absolutely no way lower amperage in any circumstances can damage any circuitry of any sort.
The amperage is simply the amount of energy that is being sent into the phone. Less energy = Slower charge time.
If you give too little amperage to a computer, for example, It will simply not turn on, or if it does turn on, randomly turn off.
Click to expand...
Click to collapse
you just said it...
Riro Zizo said:
you just said it...
Click to expand...
Click to collapse
Yeeeah. Randomly turn off because of not enough electricity. That's not damaging. At most it could damage software if the filesystem on the computer is non-journaled. Maybe corrupt a file if something is being written.
ReCreate said:
Yeeeah. Randomly turn off because of not enough electricity. That's not damaging. At most it could damage software if the filesystem on the computer is non-journaled. Maybe corrupt a file if something is being written.
Click to expand...
Click to collapse
ahhh yes sorry, i thought you were talking about the digitizer thing, oops.
yes actually, less electricity can't damage anything except data loss from a random shutdown while writing/deleting something. you are right
Riro Zizo said:
ahhh yes sorry, i thought you were talking about the digitizer thing, oops.
yes actually, less electricity can't damage anything except data loss from a random shutdown while writing/deleting something. you are right
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Click to collapse
Ah, yeah. Lol. Oops.

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