Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

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 charge my iPhone, but it wants me to erase everything when I plug it into the USB of a new computer. Is there a way to add it to a new computer and keep my data on the iPhone?

share|improve this question
Phone questions are off topic. Please read the FAQ at the top of the page. – MDMarra Jun 11 '10 at 1:50
@Mark ".. except insofar as they interface with your computer" – Sathya Jun 11 '10 at 2:15
@Sathya - Questions about phones, whether they interface with your computer or not, have been closed time and again on here as off-topic. If you disagree with this, you might want to bring it up on but until then, they will continue to be closed. – MDMarra Jun 11 '10 at 2:20
@MarkM: Sathya's right. questions about syncing a phone with a computer are the exception. from the faq: "electronic devices, media players, cell phones or smart phones, except insofar as they interface with your computer". this question is ontopic, although it might be a duplicate. – quack quixote Jun 11 '10 at 6:46
up vote 2 down vote accepted

Open your itunes before plugging in your iPhone then if you're on Windows go to

Edit -> Settings

Otherwise if you're on a Mac go to

Preferences -> Devices

Click on the Devices tab then tick

Prevent iPods, iPhones, and iPads from syncing automatically

That should do the trick

alt text

share|improve this answer
This doesn't fix anything at all. I still can't sync to my other computer without being prompted that my device will be erased. – jonathanconway Sep 2 '10 at 1:37
you can't sync on different computers without having your device erased, but you can plug it in and not have it sync automatically so you can either charge it or use it has a hard drive – Serge Sep 16 '10 at 23:15

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.