Reset your iPhone 3G + 3G S
After spending at least 40 minutes reading unclear articles about how to reset your iPhone, here is a working set of instructions. Following these will put your iPhone in factory restore (DFU) mode. This can be helpful for jailbreaking + general troubleshooting. As far as I’m aware, these will work on all iPhone + ipod touch models. (iphone 3G + iPhone 3G S).
For example, I want to upgrade to the latest relase of the iPhone software, but because I have a beta software version installed, itunes will not update the software without going into DFU mode and manually updating the software.
- Turn phone off (if the phone is already off, there is no need to turn it on then off again).
- Have your trusty iPhone USB cable plugged into your computer and close-by for easy reach. Don’t plug it in yet.
- Hold down the home button (the round one) — Don’t let go!
- After a few seconds of holding the home button, insert the iPhone USB cable. Don’t let go of the home button during this entire process.
After 10–15 seconds you should see the iphone screen turn purple/black with a picture of a USB cable + itunes logo (First generation iphones will display an exclamation point). From here, itunes will launch, alert you to an iphone detected in restore mode, follow the prompts to restore and wa-la! Brand new iPhone (well, at least on the inside).
Tagged as DFU, factory restore, iPhone, reset + Categorized as Technology, Apple