How To Video: Wipe and reinstall your iPhone's OS for resale
About Video Comments (0 ) Transcript

How To Video: Wipe and reinstall your iPhone's OS for resale

2:21 /

Whether you're looking to sell your iPhone and you accidentally deleted the operating system, or you want to downgrade from iOS 4, Device Firmware Update mode will help you out. Getting into it is simple yet tricky, so here's guidance on a fast way to wipe and restore your iPhone.

-Whether you're looking to sell your iPhone and you accidentally deleted the operating system (I'm looking at you, jail breakers), or whether you want to downgrade from iOS 4, DFU Mode is the place you want to be. Hi, I'm Seth Rosenblatt for CNET, and today I'll be showing you how to restore an iPhone OS which involves a little jaunt into a Device Firmware Update Mode. DFU Mode is different from Recovery Mode. It skips over the current operating system and will allow you to upgrade, downgrade, or just reinstall the OS, and it will wipe any and all data that's on the phone. It's as close to factory fresh as a used phone can get. So, before you start mucking about, be sure you've backed up everything. Start iTunes then connect the phone to your computer. Do not format the drive if your computer asks you to. Tap the Sleep/Wake button at the top to turn the screen off. When you're holding the Home button down, hold the Sleep/Wake button at the same time for exactly 10 seconds, then release only the Sleep/Wake button. Keep holding the Home button until a message appears on iTunes saying that, "An iPhone in Recovery Mode has been detected." Then you can restore iOS or make whatever other changes you're planning on. DFU can be tricky to get into. The easiest way to tell is if your iPhone screen is completely black. If you see any kind of icon on the screen, it's not in DFU Mode. Start over and keep at it until you get it. Also, if you're an OS X 10.6.5 user, there's a known bug that prevents Macs from detecting phones in DFU Mode. Connecting through a USB hub, finding a Mac on 10.6.4 or earlier, or finding a Windows computer ought to work until the bug's fixed. So that's how to get your iPhone into DFU Mode. Remember that precise 10-second count: one Steve Jobs, two Steve Jobs, three Steve Jobs, four Steve Jobs, five Steve Jobs, six Steve Jobs, seven Steve Jobs, eight Steve Jobs, nine Steve Jobs, ten Steve Jobs, release, and hold.

New releases

Trick yourself into working out...
3:47 July 29, 2014
If you hate exercise but love games, Donald Bell showcases a few apps that can help improve your health s...
Play video
The voice-activated Ivee Sleek...
1:46 July 29, 2014
This $200 voice control home assistant isn't quite ready for prime time.
Play video
Samsung's Ativ Book 9 2014 Edition...
1:51 July 29, 2014
For anyone tired of working day-to-day on a small screen, but still wants a high-end, thin-and-light with...
Play video
OKCupid plays with our hearts without...
2:58 July 29, 2014
The dating site conducted an experiment that falsified compatibility matches without telling users. When the...
Play video
Track your run and rides with your...
2:35 July 29, 2014
Using your iPhone or Android, this app helps you monitor your fitness activity while biking on the backro...
Play video
Record your golf swing and then...
4:17 July 29, 2014
If you have limited time but enjoy getting out on the green, this app will help improve your golf swing by...
Play video
Why Android Wear is worth watc...
4:16 July 29, 2014
Brian Cooley discusses the emergence of Google's Android Wear OS in the nascent smartwatch market and tells...
Play video
Memorize these Fire Phone gest...
2:01 July 28, 2014
Tilt and swivel your way around the Amazon Fire Phone with a few handy gestures.
Play video
 

Video discussion

Conversation powered by Livefyre