Ask Different is a question and answer site for power users of Apple hardware and software. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I want to use my happy hacking keyboard with ipad.

I just read an aritlce about changes on ios 4.2. One of changes I noticed was that voltage changes for camera kit on ios 4.2. I also read that USB keyboards no longer works with camera kit on ios 4.2.

Is that true?

share|improve this question
If you have a powered usb hub your keyboard should work... – user4380 Mar 13 '11 at 6:30
up vote 2 down vote accepted

I could have sworn I've managed to use a USB keyboard with my iPad, and it shipped to me with 4.2.1 installed. Maybe my keyboard uses less voltage (it's one of those semi-novelty foldable ones).

Perhaps you could get around this limitation with a powered USB hub?

Update: I've recently heard rumour of someone working on a solution for this.

share|improve this answer

Yes it is true, I just connected my USB Key Board using Camera connection adapter, and it shows "Accessory unavailable, The attached accessory uses too much power".

iPad Software Version: 4.2

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.