Hack your iPhone: back up your data
If you want to hack your iPhone, be prepared for the notion that you can lose all your data or (worst case) turn your iPhone into a useless brick -- thus the origin of the word “bricking” a device. Normally if things go awry, the worst that will happen is that you have to restore your iPhone to its initial pristine state. That means that you’d lose your settings and data on the iPhone. So before proceeding with hacking your iPhone, make sure you save off your data as follows.
Windows users
- Back up contacts - I don’t use Outlook or Outlook Express, so my contacts are stored using the Windows Address Book (found with Start->Programs->Accessories->Address Book). I exported my contacts as a WAB (Windows Address Book) file and a CSV (comma-separated value) file. Added: in iTunes, plug in your iPhone, click on the iPhone device, then under the “Info” tab, look for the “Contacts” section. Make sure that you check the box for “Sync contacts with:” and select “Windows Address Book”.
- Back up photos - On my Windows XP system, iTunes doesn’t copy photos to my desktop computer (annoying!). And each time I plugged in the iPhone, a different dialog window would pop up (also annoying). It looked like this:
It turns out that these two annoyances cancel out. 
Go ahead and run the “Microsoft Scanner and Camera Wizard” and you can import the pictures on your iPhone and move them to your Windows computer pretty easily.
- Back up settings - This sounds horribly low tech, but grab a blank piece of paper and walk through your “Settings” application on the iPhone and just write down each setting. It’s boring, but in 10-15 minutes you’ve got a record of every setting on your iPhone, so it won’t hurt if you have to restore your iPhone to a pristine state. Added: Any time you sync your iPhone to iTunes, iTunes also saves your settings, but I prefer to have a paper backup just in case.
- Back up music - I don’t buy music from iTunes; I use MP3s from my music collection. So I had copies of the music on my iPhone somewhere else and didn’t worry about backing up my music.
- Back up bookmarks - I use Firefox for my normal bookmarks and Internet Explorer for my iPhone bookmarks. I don’t have that many iPhone bookmarks, so I didn’t worry about saving a safe copy somewhere else. Added: in iTunes, plug in your iPhone, click on the iPhone device, then under the “Info” tab, look for the “Web Browser” section. I checked the checkbox for “Sync bookmarks with:” and selected “Internet Explorer”. Once IE has your iPhone bookmarks, then in Internet Explorer you can click File, then “Import and Export...” to open a wizard. Click “Next”, then “Export Favorites...” and “Next”. The following screen lets you export some or all of IE’s bookmarks (called Favorites). If you don’t change anything, you’ll select all the bookmarks, so just click “Next”, and then you can specify a file where the exported bookmarks will be saved.
Mac users
I assume that your iPhone syncs files to your Apple computer. To be cautious, make backups of whatever data you can by copying photos/file data to an extra-safe location. Any Apple users want to chime in with more specific advice?
Ready to go!
Okay, your data is backed up -- you’re all set to begin hacking your iPhone. I’ve only had good experiences so far, but remember that things can go wrong. So back up that data first!
Related Posts:- 5 Steps to Upgrade From a Hacked iPhone to an iPhone 3G
I know what you're thinking: "Matt, I hacked my original iPhone. Now I want to share in the iPhone 3G fun, but I'm worried that... - Hack your iPhone: install applications with Installer.app and AppTapp
(By the way, when I talk about "hacking" your iPhone, I mean closer to "modding". I'm interested in running third-party native applications on my iPhone,... - Hack your iPhone: toolchains and cross-compilers
The iPhone can run "web apps" very easily. These web apps are really just specially-crafted web pages that take advantage of the iPhone's built-in web... - Busy week: Calendar sync and Contacts API
Lots of stuff going on this week. There were presidential primaries on Tuesday, and sounds like Apple will have some iPhone SDK news in just...
Maurice Said,
September 3, 2007 @ 3:12 am
Interesting post though I think bricking has an older pedigree than iphones though - i take it you know all about alternate (linux based) firmware on linksys’s wrt54g and the NSLU2.
I’ve just brought a nslu2 to turn it into a lowcost linux box
Nha Cho Thue Said,
September 3, 2007 @ 4:42 am
thanks for the tips, now i have to find some money to buy my iphone.
David Saunders Said,
September 3, 2007 @ 6:39 am
Matt: Should you not be honored with a GPhone beta?
Some of us are gagging to hear more about which way this is going - the rumored G Phone that is.
Thanks for being here
David
Allan Said,
September 3, 2007 @ 6:59 am
I’d be only too happy to be a guinea pig for the new (proposed/rumoured/pie in the sky) GPhone.
Seriously though I’ve given up with those flaky infra red mobiles. I now believe phones and computer were just not meant to be together.
PS. I am also available for tea making duties at the Googleplex if your tea lady is getting a bit passed it
Matt Cutts Said,
September 3, 2007 @ 8:32 am
Maurice, sure--I didn’t mean to imply that “bricking” started with iPhones. That phrase has been around quite a while.
David Saunders, if it’s not search quality or webspam, then it’s not really my area at Google. So I’ll stick to posts about the iPhone that’s in my pocket.
H3dicho Said,
September 3, 2007 @ 9:48 am
Hopefully we will have Iphones soon in Costa Rica...hacked or not...
Hey, Matt, is being cool to read most of ur entries...
I have a link feed of this site in our maestroweb blog..
dw Said,
September 5, 2007 @ 11:13 am
What about backing up the calendar? I couldn’t get it to work with Outlook.
Also, what about custom photos that you set for your contacts? Those don’t get backed up I don’t think.
It’s pretty lame really, I want to click a button on iTunes and have it backup EVERYTHING on my iPhone. Because someday I’m sure something will happen to it. Or when the next one comes out I will want to transfer everything over.
Mary Said,
September 6, 2007 @ 8:07 am
The other option is to hack the iphone BEFORE you add any personal settings, and while the warrenty still lasts.
Jessie Said,
September 7, 2007 @ 1:52 pm
So Matt, what are your feelings now that the phone has dropped $200 in price or if it was the 4 Gb it has been discontinued? That doesn’t give me much confidence in Apple.
Ben Said,
September 25, 2007 @ 12:31 pm
For tips on hacking your iPhone for Mac users, check out my blog
http://blog.myspace.com/index.cfm?fuseaction=blog.view&friendID=116371994&blogID=311919025&Mytoken=D32F2060-ACC5-4E59-BC15944BD77BD88439434775
tony Said,
January 2, 2008 @ 4:31 am
not as useful as you could have been. Its ok you don’t buy drm music but you still could have said how to backup music. Contacts is done automaticly...
طبيب Said,
February 5, 2008 @ 5:24 pm
thanks for the tips, now i have to find some money to buy my iphone.
velix Said,
March 4, 2008 @ 10:10 am
This is very useful information for me, don’t know if it is useful to other users but I appreciate this information very much because I wanted to hack little bit my iPhone and I’m new to this. Thanks, Matt.