Bamboo tablet stops working? USB uses too much power?
Dear sirs,
Converted to macbook a year ago and so far I haven't had any problems, until this happened...
I bought my new bamboo tablet less than three months ago and recently it has stopped working at random times- and then, this message pops up. "USB uses too much power, will be deactivated... blahblah" None of my friends who knows a lot about macs can help either, so I gotta ask you guys. And I've tried unplugging it and plugging it in again, the message still pops up.
I only have my tablet plugged in, nothing else and my battery was well over 90%.
What is going on? +I have also asked on the wacom forum, but no replied so far.+
Is the tablet powered from its own power brick or does it get power only from the logic board USB port? If the later, adding a powered USB hub (has a brick) and plugging the tablet there should correct the power problems.
Some USB devices draw more power than many notebook can push through their USB ports. The powered hub is a great asset especially when using a notebook computer like a desktop machine.
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I've googled the issue and have run out of ideas.
The Ext HD is a 500GB LaCie Little Disk New Pack USB2.0 Black
Restarted the macbook.
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HELP ?
Error Message:
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 have also been disabled. When you disconnect the device drawing too much power, your other USB devices will be enabled again.Maybe the disk will work through a separately powered USB Hub?
Bob -
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It can't draw "too much" power, it can only draw as much as the USB port is able to provide and no more. IIRC, the keyboard port has a lower power output than the iMac's port.
That being said, yea, it's possible that the port has failed and it can be replaced or if another port works you can use that one. Although if it is still under warranty or covered by Apple Care, then I would take it to an Apple Store or service provider to get the port repaired. -
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Might want to have your MacBook looked at.
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On my MacBook Pro with Retina Display 15", that I purchased a few weeks ago, started coming up with the following message on my desktop:
"USB Devices Disabled Unplug the device using too much power to re-enable USB devices".
I unplugged the device and the message still keeps coming up.
This is what I have done so far to troubleshoot:
I shut down the laptop. When booting up I pressed the command+option+p+r at the same time. It comes up with a menu to reinstall OSX, Get help online, Run Disk Utility, etc. I choose the disk utility and repair the disk and then restarted.
The message keeps popping up and I can't seem to get rid of it. Why does the message keep popping up even though I don't have any devices hooked up to the laptop at all? Any help to reenable my usb ports and get rid of the messaage would be helpful.I talked to Apple Support and we at least stopped the bleeding, a little bit. These are the troubleshooting steps I did before I contacted Apple Support:
1. Reinstalled OSX
2. Restore the last known good Time Machine Backup.
This did not fix my issue, so I called Apple Support and they told me this:
1. Turn Power off.
2. Wait 15 seconds.
3. Plug in Magsafe adapter.
4. Wait 15 seconds.
5. Hold down the Shift+Option+Power Button for 20-30 seconds.
6. Turn Power back on.
Ok, this stopped the bleeding a little, but as soon as I plugged in a Apple USB Superdrive
and a Apple Mini Displayport to VGA Adapter. This "USB Devices Disabled" pop-up pops up like every 30 minutes now. At least, it is not constantly popping up after I close it, so I guess it will do for the temporary. Going to contact Apple support, later, though to see what else can be done. -
my iphone 5's charger is not working anymore with the mac or the normal plug in neither, i dont know why. whenever i plug in my mac, i have to twist the charger a little and my mac said "USB Devices Disabled: Unplug the device using too much power to re-enable USB devices". of course it cant connect with the itunes in my mac, but somehow it still syncs the music to my iphone... i don't understand why. please help me thanks!
try resetting the ipad,or change the cable ,it woould work
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I can no longer charge my iPhone5 through either of my macbook pros. I get the error message that a USB device is using too much power. Can anyone help?
I reconnected the original powered hub that I thought probably caused the problem and this time it shut down the whole computer. When I rebooted everything now works perfectly. The system reset. I tried another powered hub and it didn't have the same effect so the old one is heading for the bin and with fingers crossed all systems are now working perfectly. Trying to reset PRAM or reset the SMC didn't work but causing the same power issue did. Thanks for your input though. It did get me to think what was the original cause.
Cheers
Guy -
My USB ports Using too much power with nothing plugged in.
So i have this macbook pro mid 2009 model. Whenever i boot the computer up, there's this message that comes up. USB ports must be shut off because its using too much power blah blah blah. Theres nothing plugged into them!
Everything works, camera and all that, but the USB ports.
Do i need to download anything to get them to working?
Is it with the logic board?
or idk what to do!
Please help!Have you tried an SMC reset and PRAM reset?
SMC Reset
Shut down the computer.
Unplug the computer’s power cord and disconnect peripherals.
Press and hold the power button for 5 seconds.
Release the power button.
Attach the computers power cable.
Press the power button to turn on the computer.
Reset PRAM
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P and R.
You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
If that doesn't help, perhaps re-installing the 10.7.2 update using the combo (unless you already tried this):
OS X Lion Update 10.7.2 Client Combo
repairing disk permissions before and after updating. -
I can no longer upload photos with the camera attachment. I am getting an error saying the device uses too much power. I have used the device before. Is there anything that can be done to fix this problem?
You don't actually say what the problem is, but maybe this can help:
USB and Firewire information:
http://support.apple.com/kb/HT1151?viewlocale=en_US
http://support.apple.com/kb/HT4049?viewlocale=en_US -
When I connect my Ipad mini to my camera via lightning to usb camera adapter all i get is a message "The attached accessory uses too much power."Any solutions
It depends on the camera, but some have a special mode for offloading photos but not trying to charge the camera through the USB port. For others, you may have to pull out the SD card (if that's what it uses) and use the Lightning to SD card reader instead.
Maybe if you told us what camera you are connecting, somebody here with the same model can give you more specific information. -
because "it uses too much power"
I did'nt get that message a few weeks ago when I used Snow Leopard and now I can't approach the files I saved on the external disk.
Question 1: How do I solve the problem? (Without going back to Snow Leopard)
Q2: Why this parential supervision by Apple?riks1105 wrote:
because "it uses too much power"
I did'nt get that message a few weeks ago when I used Snow Leopard and now I can't approach the files I saved on the external disk.
Question 1: How do I solve the problem? (Without going back to Snow Leopard)
Q2: Why this parential supervision by Apple?
Get a powered hub
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Cannot charge iPhone 5 because USB is "using too much power"
Last night I tried charging my iPhone 5 on my MacBook Pro and everything went fine. However, when I tried to do the same thing today, every time I would plug my device in I would get an error message saying that the USB device is using too much power and has been disabled. Is there anyway to override this so that I can charge my phone?
It'll still carry the Apple warranty. My suggestion would be to bring your Macbook along and show them, even if you go to Verizon. You're better off at the Apple store anyway. If it turns out the cable isn't the problem, the diagnosis is free at the Genius Bar and one way or the other your problem should be fixed. Just make an appointment first.
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Ipad2 Camera Connection Kit
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What should I do please?
DavidI believe your camera uses a micro SD card. The CCK accepts the full size SD card. Do you have a SD card adapter to plug the micro into?
Cheers, Tom
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