Why is my iphone 3g drawing too much power through USB?

I'm getting an error that my iPhone 3G is drawing too much power through USB and the computer shuts the port down. I've tried it on PC & Mac, same thing both times. Won't charge on wall charger or iHome either... I've tried turning on/off & resetting, but still won't charge. Ideas?

just wondering ... did anyone figure out the problem where when you plug the iPhone into the computer it says that the USB Device is drawing too much power? any help would be appreciated.

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Mackie Control Pro drawing too much power from usb?

I have a Mackie Control Universal Pro connected to my 2.8GHz Intel Core 2 Duo with 4GB rom, running OSX 10.5.4.
When I first hooked up my Mackie Control Pro (about 1 year ago) it worked perfectly. A bout 2 months ago my computer wouldn't recognize it anymore. I keep getting this message telling me the device is drawing too much power from USB port and due to that it will shut down that specific port.
My MCP is plugged to the electrical outlet and shouldn't need to be drawing power via the USP. I tried disconnecting all other devices hooked up via USB and Firewire beside the keyboard and mouse but same massage keep coming.
I checked the MCP to make sure the electrical wire was plugged in properly and supplying it with power, I also tried hooking it up with different USB cables via different ports but problem still there.
Can anybody help me out please this is starting to be a big head ache. Any help would be great.

Not 30 seconds after submitting the question I did just that. I felt stupid not thinking of that simple check. Thanks for the quick reply. It worked just fine with another cable. It appears we need a new cable for my daughter....
Thanks again.

WD Legacy External Hard Drive "Draws too much power from USB"

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Contact the manufacturer. I think the power pack for the drive is not functioning properly.

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Good day,
About three weeks ago, my iPhone - which then still had firmware 1.1.4 - lost almost all its charge and "died". It looked impossible to get it charged, the red battery icon was the only thing it showed. Only thanks to a tip from another forum I managed to "revive" the phone: I left it connected to the wall charger for 9 hours, then switched it on simulating a DFU-restore.
I then did a complete re-install of the iPhone's software (did it twice just to be sure) upgrading it to 2.0 and subsequently to 2.01 which is on the phone now.
Starting last week, occasionally when I want to sync or to simply load the battery of my 2G iPhone (now with firmware 2.01), my MacBook Pro answers with the message "A usb device is currently drawing too much power" and then disables the port. I eliminated the doubt it could be a hardware problem, using three different USB cables and four different Macs: the problem presents itself everywhere.
Interestingly, 2 out of 10 times I am successful when I connect the iPhone via USB to the MacBook, eg right now it is charging and I did a sync.
I think the two events are somewhat connected. Apple Phone support says the event is "strange" but since the phone occasionally works, it is impossible to get the phone changed.
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just wondering ... did anyone figure out the problem where when you plug the iPhone into the computer it says that the USB Device is drawing too much power? any help would be appreciated.

IPod Touch drawing too much power--disabling USB ports

Hi there,
I have a brand new Macbook, just picked it up less than a week ago. I've been hooking up my 2nd gen iPod touch to it for a while without any problems, but suddenly I started to get an error message every time I plug it into my USB port:
"*Because a USB device was drawing too much power from your computer, one or more of your USB devices have been disabled.* To prevent damaging your computer, the USB device drawing too much power has been disabled. Other devices may also have been disabled. When you disconnect the device drawing too much power, your other USB devices will be enabled again."
I've been looking all over the internet for a solution to this and I can't find a thing--it's really frustrating since this laptop's brand new and I have no other way of charging my iPod.
My laptop is plugged in while I'm doing this. The error message is instant--it seems to pop up before I've even inserted the USB cable all the way. Also, for what it's worth, I just did a test and I get the error message just by plugging the USB in, even if it's completely unattached to anything.
Thanks, looking forward to a solution.
Message was edited by: stenzelwa
Message was edited by: stenzelwa

Had the same where as soon as i Plug my iPhone into the USB Port on my 2009 "Macbook Pro"
"Because a USB device was drawing too much power from your computer, one or more of your USB devices have been disabled. To prevent damaging your computer, the USB device drawing too much power has been disabled. Other devices may also have been disabled. When you disconnect the device drawing too much power, your other USB devices will be enabled again."
(This is a Simple Fix)
Just Change the USB Cable.
I Just Happened to have a New USB/iPod/iPhone Cable Laying Around, so i Connected it and "Voila" everything was back to Normal.

Ipod Touch (2nd gen) drawing too much power, disable USB?

Earlier today, when my iPod Touch (2nd gen) was syncing with iTunes, it disconnected and this error message popped up:
Because a USB device was drawing too much power from your computer, one or more of your USB devices have been disabled.
To prevent damaging your computer, the USB device darwing too much power has been disabled. When you disconnect the device drawing to much power, your other USB devices will be enabled again.
Now, my Ipod will not sync or charge. I've tried connecting other USB devices (cell phone, wireless mouse and ehd) and get the same message. I've tried a few suggestions online like: restarting/shutting down the computer, restarting the IPod, resetting the SMC, PRAM and NVRAM. None of these worked. I've connected my iPod to my roommate's iMac and it connected with no problem. Is there anything else I can do before using the Genius bar?
Macbook Pro 5,3
Intel core duo
4gb memory
ipod touch 2nd gen
firmware 4.2.1

You have a MacBook problem since it happens with all your USB accessories. I suggest you post in the MacBook forum. I do not have a MacBook so I have no ideal about the problem.

IPod Nano Drawing Too Much Power From USB Port

My daughter plugged her iPod into the USB port of our iMac today, something she has been doing for months and months, and yet this time she was greeted with an error message telling her that something was drawing too much power from the USB port, so my iMac was shutting down that port. I moved the iPod to another port -- same error message. I moved the iPod to another iMac -- same message. So I am confident that the culprit is the device and not the computer. Any ideas on how to resolve this issue? The iPod is an iPod Nano 7th Generation (current model).

My issue has been solved. The USB cable was bad. I am unsure how to remove my question from the forum ... sorry for taking up anyone's time.

Constant error message: USB drawing too much power - no USB plugged in for weeks?

Starting about two days ago, I've been getting error messages about every 30 seconds saying that a usb device is drawing too much power, and my usb device has been disabled. I haven't had anything plugged into the usb ports for about 3 weeks, well before I started getting this error message. At first the error messages came up one at a time, but now about 5 of them pop up every 30 seconds..
There seems to be no visible damage to either of the usb ports, and I've updated software and restarted it too. Can anyone help me figure out what's going on?

If SMC and PRAM resets do not correct the problem, make an appointment at an Apple store genius bar for a FREE evaluation.
http://support.apple.com/kb/HT3964
http://support.apple.com/kb/ht1379
Ciao.

I have the latest mac desktop op mountain lion,plugged in the canon pixma ip90v and get a message drawing too much power from usb and it won't work?

I cannot get the canon pixma ip90v to work with the computer.I get a message about drawing too much power from the usb.

You need to plug in the power cord that was included with the printer and then use it with USB, or use the power cord included with the printer and access it wirelessly from your iMac. I access my Canon MP560 wirelessly from my iMac, which works well.

Iphone "drawing too much power"

Had my macbook for 7 months and my iPhone for 4 months. Everything has worked OK with my macbook and Iphone 3G until now. (Apart from the speed issue with iOS 4.0). Then yesterday the phone could no longer connect to Itunes and I got the following error message:
"Because a USB device was drawing too much power from your computer, one or more of your USB devices have been disabled"
My trouble shooting so far:
- I have connected Iphone to other macbook = same problem
- I have connected my Ipod classic to my own macbook = no problem and syncs well
- I have tried different cables with my iphone = same problem
- I have tried same cable with ipod and other macbook = no problem with cable
- I have restarted the macbook using sleep, restart and shutdown = same problem
- I have shut down started the macbook in safe mode = same problem
- I have shut down and started the macbook using CommandOption+RP = same problem
Further to the above, I am aware there is quite a bit going on behind the scenes these days. For your information, the problem started before I had the chance to update to iOS 4.1. and it happened before I updated to Itunes 10 (or whatever the version that came out yesterday is called).

I have the same problem, it looks like a problem with the phone itself rather than the computer (other devices work).
It almost like its been designed to last just past warranty, but no more. A week ago the screen died and had to be replaced (would have been at my cost, but the apple genius broke the backlight while checking the phone, so he had to replace it free of charge.)
Looks like i'll be moving over to HTC... haven't heard of any problems with their hardware.

Cannot sync my iPhone 5s, macbook usb is drawing too much power

I have a macbook pro, 2.8 ghz intell core i7 and a new iphone 5s. Each time i try to sync using the apple usb cord, I get an error saying that a device is drawing too much power and the usb has been disabled. Help! I am trying to get my pcitures on my phone and can't do it without sycning.

Hey vluciay!
Here is an article that describes this situation and can help you troubleshoot the issue:
USB: Troubleshooting Error Messages
http://support.apple.com/kb/TA25618
Thanks for being a part of the Apple Support Communities!
Cheers,
Braden

MBP disconnects IPhone everytime saying the USB is drawing too much power?

Hi Guys,
Today I went and bought myself a new Mac Book Pro 13".
Tonight I've been transfering all my files over from my old MacBook and everytime I try to connect my IPhone 3GS by USB to my Mac a message comes up straight away saying "A device conected to your computer is drawing too much power, apple has disconected this device to prevent damage occuring to your computer"
I have tried to connect my phone numerous times while it has been conected to the power cord and also running on battery.
It also took my new Mac a good half an hour to recognise my external hard drive was connected and let me use it..
I have had this problem once or twice with the same IPhone and my old mac so im thinking it may be a problem with my phone considering it is 2 years old now?
But then again, my old mac that is nearly 4 can still connect to my phone when my new MBP can't.
Any help would be appreciated.
Thanks,

Use a self powered USB hub.
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents

When I plug in my iPhone to my iMac my computer flashes a box that says my USB device is drawing too much power from my computer and claims one or more of my devices have been disabled. Then it will not sync my iPhone. Any solution ideas?

When I plug in my iPhone to my iMac my computer flashes a box that says my USB device is drawing too much power from my computer and claims one or more of my devices have been disabled. Then it will not sync my iPhone 5. Any solution ideas?

Try unplugging any other USB devices. If you are using a hub, don't, connect the phone directly to a computer USB port.
None of these are necessarily things you should do, but might help. For instance, if you plug the phone to an already busy hub, the phone might be "the straw that broke the camel's back" and lock out the hub.

Why do I get usb draws too much power with GoPro Hero?

I just bought a GoPro Hero 3 Black and it works fine. First time I connected to a USB port it worked jsut fine. Later, when I tried to connect it again, I got a message that the USB port is drawing too much power. I tried a diferent port and it gave same mesage. Disconnected, tried again and it worked fine.
I'm wondering if it's a matter of the camera battery drawing too much power when charging? E.g. first time connected it was fully charged. I haven't tried it yet again with a full charge.
Any ideas?

Which GoPro Hero Camera?
I use both my GoPro Hero 2 cameras with the same MacBook and have no problems.
Try charging the camera batteries before you connect to the MacBook.
I am interested to see if that works for you.

Brand new apple wire keyboard is "drawing too much power." Why? How do I fix this?

Just bought a brand new Apple iMac, not even a week old. It came with a wired keyboard with numberpad. I accidently left the computer asleep over night and upon returning to it, everything seemed fine. For probably an hour or so, there were no problems, then I started getting spammed with this message; "Because a USB device was drawing too much power from your computer, one or more of your USB devices have been disabled." At the time I have a usb extention, external harddrive, and keyboard plugged into the ports. After removing both the external hardrive and extention, the message coninued to pop, muliplying itself if you did not close it. After researching and doing a little experimenting I was able to determine that the usb port on the right side of my keyboard is the one being disabled. (A mouse will not work when plugged into the port but will on the left side) I have also restarted the computer, shut it down,unplugged it, and started it again. The message returns immediately upon reactivation. As I type this I am being consistantly interupted by the message. I do not have a second keyboard nor am I planning on purchasing one. I am disapointed in this malfunction of a brand new product. Please asist me in resolving this.
Thanks.

Ryan, try resetting the SMC
To reset the SMC
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer

Why is my iphone 3g drawing too much power through USB?

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