I bought a charger from eforcity (respectable seller) for my HTC Hero. It works fine simply as a charger, but if I try to use the phone while it's charging it acts very odd, with home screens not moving properly, applications responding slowly or incorrectly, keypresses taking a while to register but in a different order than entered, etc., etc. I can only guess the charger is either giving too much juice or something and it's messing the phone up. When I unplug the phone, it almost instantly starts working normally, although on one or two occasions I had to reboot for it to work.
Also, I'm using Fresh 1.1 with the Gumbo kernel, not sure if this has anything to do with it.
I had a similar issue with a cheapo charger causing touchscreen problems on a G1. I'm guessing there's a bit of a high voltage leak, or a high frequency AC current coming through. That could change the voltage in the touchscreen grid, throwing off how it detects presses. I'd stop using that charger, it could fry sensitive components in your phone, or even give you a nasty shock.
stock hero charger is as follows:
input: 100-240v~0.2A 50-60Hz
output:5V ~.~ 1A
efficiency level IV
if yours is different than this, discontinue use
new
just go to sprint and they will give you a new charger
what if you have a generic walmart brand car usb adapter but still use the htc cord...any problems with that ???
i used to have a prolem with an old moto razr charger on my hero, it would also slow down my phone. turns out the charger would show up as usb and not charger and that it wouldn't let my phone work correctly, i change to a blackberry charger and now no issues, also my good ole usb works fine, moto charger was just a little weird.
i think if the walmart car chager uses standard volts and ma then it should be fine
yea iits just a cigarette lighter adapter..i figured it would be cheaper than buying a whole new car charger....BTW i have like a million BB chargers...they work decent with android even though the shape is a little different...ive never tried just cause when i got my hero the dude was swearing up and down that they were different
Related
When I plug my MDA Pro into my PC it draws 460mA of current at 4.75V and the orange charging light always comes on.
I have bought a car charger - when the MDA Pro is plugged into that it also draws 460mA at 5.04V but the Pro doesn't always seem to realise it is being charged - the orange charging light doesn't come on and the backlight switches off so I cant see the SatNav! (when the light goes off the current goes down to 430mA)
The charger was bought of eBay from shop4hardware/PCglobe for £9.99 and it looks well made.
Any ideas what is going wrong? Has anyone got a 12V charger they are happy with - if so where did it come from and how much??
ceemjay the tight fisted
I bought a car charger off eBay, and while the orange light does come on and stay on, it doesn't seem to charge very effectively. If i'm using something like TomTom the charger manages to keep the battery charge level just about constant, rather than building up charge.
Is this a problem with the Universal? I had a Blue Angel before the Universal, and the car charger I had for that was very effective.
Cheers
Rowan
I had this problem too and solved it by purchasing an "orange" (UK mobile phone operator) branded charger for 10 quid from one of their shops. I have no issues now.
What i did notice when I had the problem was by ensuring the xda was off prior to plugging in the old charger, it would continue to stay orange when turned on. I think this problem is a common one with the usb cable & car charger adaptors combo.
i bought one from expansys, what i noticed:
1. It takes a lot of jiggling, pushing, pulling and twisting to get it recognised by the device (organge light on)
2. When it charges, it does so slowly, i think about 1% per 10 minutes or so, or about 10% per hour.
My two bobs worth anyway.
Many of the mini USB car chargers are simply not powerful enough to charge these devices. They all have the same voltage but the amps are different. I read somewhere that good M5000 car chargers should be rated at 1amp, I'm not sure about this but I've certainly had trouble with ones at around 600mah.
With the under powered chargers you often have to plug them in while the device is switched off. Even then it's not going to charge as well or as quickly. Getting them to start charging without turning you device off is just down to luck and patience.
My advice is to look for chargers that are specific for the M5000 etc. If it also mentions Motorola phones etc, then it's not going to have the required power output.
I hope this helps...
I bought an ORA one from a service station (phone bitz type shop), it was a bit expensive but I needed one in a hurry and you can test them in the store.
as per my earlier post - m5000 is orange branded htc universal, aka o2 xda exec. I believe mine stated it was for the spv500 and it still worked fine...
The universal wants a 2 amp charger really. the 0.5 amp from most chargers including USB ports just is not enough to do much more than stop your battery draining whilst your universal is in use !! other useful alternatives include the charger meant for the newish blackberry
Thanks for all the comments.
The charger that comes with the Pro is rated at 1A however I believe the USB spec only allows up to 500mA to be drawn (as I orginally posted it draws just below that) and I have never had a problem with charging via USB. Hence my confusion!
Is the charging software controlled and might there may be a bug which manifests itself under circumstances?
Clive
The Brodit active holder charges the universal first time everytime, and is a very good place to store the phone on the move. I've got a 3.5mm input on my car stereo and use my phone as my in car music source. If I could get a 3.5mm 4 pole to 3.5mm stereo plug and breakout mic it would be perfect since I could use it as decent handsfree solution, voice command can still use the built in mic when the stereo connection is inserted but the phone app doesn't.
The Brodit holders are nice. I prefer the unpowered version, so I use a separate charger cable. But I agree good holders.
Hey, just bought my wing (upgraded from dash that I dropped down my ice fishing hole) and it won't seem to charge. I've tried everything from leaving it off to different chargers (off brand and htc supplied ones) and I can't seem to get it to charge at all. Thanks for your help!!
Make sure the charger your using is rated at the correct voltage, ohms, watts or whatever the hell is important. (im not an electrician)
With my old MDA, I was trying to use a motorola razr charger, and it wouldn't take a charge at all, because apparently if the chargers aren't "made" for the phone, they won't charge the battery fast enough or something like that so it doesn't take.
Try different things, ... Soft reset the phone. I've had my phone 'crash" so the screen won't show its taking a charge when I plug it in ... so soft reset it?
I dunno, maybe try taking the battery out, and put it back in.
if nothing works, You may just have a phone with a faulty usb port?
Thanks, I think I'm gonna have to call tmobile and see if I can't ge a replacement something. Sucks that I'll have to redo my iphone stuff but oh well!
try charging the phone with the wall charger first...then connect to the comp...for some reason...some phones (at least the wizard use to be this way) wouldn't be able to get a charge out of the computer usb if the phone battery dropped down to 1% or so...I think the usb has a slightly lower voltage than the wall adapter...
Every time i charge my aria, while its plugged in to an AC charger, the screen seems buggy to me, the only way i can get it to work is if i put a finger on the metal part on top while im navigating, and even then it can do some funky stuff.
its like super sensitive or something.
and when i have it plugged into the computer, its even worse, completely unusable.
this happens all the time, no matter what rom i have on the phone.
its a pain, anyone else experiencing this?
never had anything like that happen.
I had this problem using an lg wall charger but not with the provided wall/usb chargers or a motorola car charger
Sent from my HTC Liberty using XDA App
strange, its happening on the oem chargers
This is happening to me too. Super sensitive keys, impossible to scroll. Happening to me on CM6, can't remember if it was same on Sense/Liberated
Same problem here with stock ROM, although only certain aftermarket chargers. The one that came in the box (as well as using USB from the PC) are fine. But they also charge much slower. I think the other chargers have a higher voltage (like 5v USB as compared to 3.3v). It's annoying for sure, but not a deal-breaker for me.
Oink!
It only happens to me when I use the aftermarket wall charger. I'm on liberated b003 rom.
Paranoid Brandroid
hmmm, maybe ill go buy another oem charger, see if its a problem with the charger
happens to me on a wall charger/car charger set i bought on ebay or amazon...cant remember
oem charger is fine and so is any other cable plugged in to the pc to charge.
it's just that one damn wall charger that doesnt charge very fast anyway. just got it as a backup for at work.
I actually had this problem with my iphone 3gs and some charger i bought off of ebay. When the phone was plugged into it, the capacitive panel was all wonky and i couldn't use the phone. I guess it was a poorly designed charger.
Happens to me too across all ROMs using the oem charger. I don't have an after market to test with.
same is happening to me with a 3rd party microusb charger on my desire, if i try to pinch to zoom, while charging, the screen goes crazy
I just received my stash of charging gear for my Optimus 7 today, bought from DX. Having read everywhere that USB chargers are 5V +/- 10%, and seeing that the original LG charger outputs 4.8V, I thought my purchase was ok and that this charger would work.
Turns out it doesn't. When I connect the phone to the charger via USB, I lose control of the touchscreen and the system gains a mind of its own. I literally just hold my phone in my hand and stare while it randomly enters hubs and either opens an email message or dials someone. The physical buttons still respond correctly, and it's not until I disconnect the charger from the wall socket or the phone from the USB cable that I can regain control of the phone. My guess is it's a hardware fault and not software.
Granted this unofficial charger cost me around $1, but I got some similar 5V car chargers to go with it, and I've never had problems with other USB chargers.
Unofficial charger specs:
Input: 100-240V 0.15A (0.15A) 50-60hz
Output: 5V 1A
Does someone else have this issue? Is the Optimus 7 an uncommon device for requiring 4.8V input instead of 5V?
Your problem is NOT the charger, as that has nothing to do with the functions of the phone.
Your problem is that your LG Optimus 7 E900 is a DEMO unit, with a DEMO ROM. And until you flash a stock ROM onto your phone, you will experience the demo played out while connected to a power source.
You sure? Because I tried it with the 5V 1A car adapters and no problem, and the original 4.8V 1A charger gives me no problems either.
How do I check my ROM version? Firmware is 1.0.7.10, OS is 7.0.7008.0 after the February update.
Can you get us video on this?
Please excuse the ****ty video quality
That is most fascinating. I recommend you stop using that charger on your phone
So, obviously, you do NOT have the demo ROM as I suspected initially.
Since you say it works with another 5V 1A charger, then I think this specific charger may be sending unexpected, random data signals down the USB cable, resulting in the unresponsive and bizarre behaviour. Since the original charger works well, and charges pretty fast, just stick with that for now.
At least you got the update, here in Canada, we are still waiting for our first update.
And your English is so good, and without any accents...Are you sure you aren't from our here (North America)?
This is true magic Really I have no eplanation on this problem. It is only 0,2V
Yeah, and there I was thinking that the whole point of USB charging is that it's universal and totally compatible, no matter what adapter you buy and what cable you use, provided it connects well.
It seems this is not the case, and I'm weary of trying another third party USB charger, as I still cannot tell if this phenomenon is unique to the Optimus 7 or not. Sadly, the only other MicroUSB phones I have lying around don't actually support charging via this port, just data transfer.
i also admit that im "dazzled" by ur -smart-phone...
probably that adapter is"magical" somehow... did u try it on another phone??
+i also use different chargers but never had any abnormalities so far..
Though i use the original chargers that came with my blackberry 9700 and htc-desire, and just checked the blackberry output is 5v!! i cant read the htc...
So, probably that adapter of yours is a "mutant from another place"...
confirm, htc is also 5v...
ps2- i'm also on 7008, and havent got any issues with charging on both 7004 and 7008
The problem is in the charger, it's too chinese . I had this issue with other touchscreen phones, like SE X8, X10... Just change the charger, obviously it has some hum/noise...
lol...
too chinese? lol
im having the same issue when i use the lg power adapter.. it doesnt always happen but when it happen the touch screen just when berserk.
i always thought that it happens on all units. uh oh
To be honest, I thought you were crazy till I bought a Chinese adapter as well. Don't know the voltage, but I'll check it tomorrow. I think it might have to do with the way the unit is shielded, or not. The only time I wiggs out is when I leave it on the desk, but as soon as I pick it up and pull it a few inches away form the desk or any other object it works fine. But as soon as I put it back down, the screen does the same thing.
I have a usb plug that I plug into the computer that didn't do that at the same desk, I'm going to bring in my other charger and see if it rule out the outlet / interference or just the cheap a$$ adapter....
The only part that worries me, and the only reason I might stop using it, is it takes a bit from the time I unplug it to the time the phone realizes it's unplugged and the charging icon stops. Which doesn't happen with any other charger.
I had this problem too.. until I realized it affected my other touch screen devices too (Galaxy S, Galaxy Tab)... Turns out the 5V charger was the problem. Replaced it with a 5V charger of Philips/Belkin/Samsung/LG and all worked..
The unbranded 5V chargers don't work well with capacitive screens as they seem to be letting off some extra current.
have anyone got issues with S2 when plugged into power?
ie when I start recharging direct from 240V adapter, my S2 started getting VERY laggy and slow.
It immediately goes back to normal response when I unplug power.
I have never problem like you
mtrax said:
have anyone got issues with S2 when plugged into power?
ie when I start recharging direct from 240V adapter, my S2 started getting VERY laggy and slow.
It immediately goes back to normal response when I unplug power.
Click to expand...
Click to collapse
Try using an alternative charger...probably your mains charger or the usb connector on the charger is damaged.
I'm pretty sure its a issue with the s/w as I have used the charger on another phone without any issue.
unless its one of the apps I'm using, not sure how to narrow it down.
mtrax...
I have the same issue.
You´re not alone...LOL
FYI the common issue I have when plugged in is that its not easy to unlock screen, takes me a 2-3 swipes to unlock screen and after that it seems that it ignores every other key press..
Any one reported this to Samsung? I will try to log a ticket to see what happens.
Try do a multi touch test while its plugged in see if the screens acting funny.
how do I do a multi-touch test?
what will that prove? as the screen works fine when unplugged.
I have the same issue but only when charging with the usb lead (with usb power adapter) instead of the standard mains charger. Think it might have stopped now that debugging is enabled and the Samsung kies screen doesn't come up when i connect the usb.
Sent from my GT-I9100 using XDA App
Took my phone 2 hours to charge from 36 % to 100 %
note this issue doesn't occur when charging via PC ONLY via 240V mains, but let me try with USB debugging on.
edit tried USB debbuging still has issue.
Note is the 240V USB cable different from a normal USB cable? ie perhaps the device thinks its a PC connection
the phone is laggy because of the electrical interference from a faulty charger or some other electrical equipment in the near vicinity...
Please note that actually the capacitive touchscreen becomes laggy not the applications/services...
keep it away from the electrical interference...use the samsung original charger..gud quality USB cable....and the issue will be gone... for sure
looks like its the charger, the A/C adapter I got with the phone was UK which is why I didn't use it to begin with, but tried the samsung one with a UK/AU adapter and its fine..
hmm who would have thought that was the issue...
interesting it didn't affect my other HTC phone.
Same issue here, but something special:
I ebayed another charger for my sgs2, original samsung one. Same serial number, same description, same style.. but i got the charging problem only with the new one.
With my original charger (the one, which was delivered with the phone) works fine. No slow and no lag.
The new one was about 5 euro, seems to be an original...
to demonstrate my point that its the electrical interference from the dodgy chargers onto the capacitive touchscreen... do this and report back...
plug the faulty charger onto the socket BUT DO NOT charge the phone with it...
keep the phone near to the charger wires etc....(not in charge)... you will see the screen lagging sometimes unresponsive...
now move the phone away ...it will work fine..
you can keep on using the dodgy chargers for charging...but use the phone only after it has been charged and is away from the charger...
woodstock_ahem said:
to demonstrate my point that its the electrical interference from the dodgy chargers onto the capacitive touchscreen... do this and report back...
plug the faulty charger onto the socket BUT DO NOT charge the phone with it...
keep the phone near to the charger wires etc....(not in charge)... you will see the screen lagging sometimes unresponsive...
now move the phone away ...it will work fine..
you can keep on using the dodgy chargers for charging...but use the phone only after it has been charged and is away from the charger...
Click to expand...
Click to collapse
I am not able to reproduce that with my original charger. There is no lag or any other problem. Switching to my second "original" (ebay 5 €uro) samsung charger leads me direct to the lag and your description. First i thought my second one is not an original one, but because of your description there seems to be a diffrent quality on the original charger depending on it production date.. unit.. charge.. or whatever.
I bought a sgs2 from the UK, and have a UK to AUS converter on the stock charger and I have no lag when it's charging or near chargers.
Sorry. Not a problem here. Writing now and plugged. Very responsive.
Sent from my GT-I9100 using XDA Premium App
The electrical interference with the capacitive display is bullcrap since it needs electrical properties to respond. So it depends on whether your body has enough electrical properties.
So back to the point:
It is due to CPU reducing the clock speeds to prevent the phone from overheating as the battery itself produces enough heat anyway.
Many other people may not notice it since they may not perform intensive tasks while the phone is plugged in and the variation itself is also almost unnoticeable.
I have the same issue but as I said, it's almost unnoticeable to even bring it up in this forum. I haven't done any testing myself to prove this, but the same safety feature is implemented in most modern phones.
I have the same issue - I also had this issue with my Atrix.