(Complete Guide) How-to Install iOS 5 beta 1

Some people are still getting confused how-to install iOS 5 beta version on iPhone, iPad, or iPod touch.
This is a complete guide how-to install iOS 5 beta version to iPad, iPhone, or iPod touch.
Before installing iOS 5 beta, you should know what you are dealing with.
For general iPhone Users, it’s recommended to wait until iOS 5 has been finalized and released to the public this fall, in the next few months. However, if you still wanted to try out iOS 5 beta version, try it at your own risk. Beta versions are intended for developer.

Requirements to install iOS 5:

1. Compatible device with activated UDID.
   • If you are developer, please activate UDID of your devices which you want to install iOS 5 to.
   • If you are not developer, see How-to Activate UDID without developer account

   These are compatible devices with iOS 5.
   iPhone 3GS, iPhone 4, iPod Touch 3rd & 4th Generation, original iPad and iPad 2, also Apple TV.

   Other devices such as iPhone 2G, iPhone 3G, iPod Touch Original and 2nd Generation are not compatible with iOS 5.

2. Download iOS 5 IPSW file
3. Download iTunes 10.5 Beta

Follow these steps to install iOS 5 after above requirements is fulfilled.

1. Make sure that UDID of your device has been activated as developer.
2. Install iTunes 10.5 beta then restart the computer.
3. Open iTunes then connect the iPhone, iPod touch, or iPad.
4. Backup your device on iTunes. Right click on the device, click Backup. (MUST DO THIS, UNLESS YOU ARE READY TO LOST ALL DATA AFTER INSTALL IOS 5)
5. Do Shift + Restore (Option + Restore on Mac) to update the iOS software on device and choose the iOS 5 IPSW file that you have downloaded.
6. Wait until the process finished.
7. You are ready to activate the iPhone, iPod touch, or iPad right on the device.

If you are stuck on activation due to unactivated UDID, please either register the UDID or try this method: Install iOS 5 beta 1 without Developer Account nor UDID Activated

If iTunes says device not eligible for requested build, see the solution here: Fix: This device isn’t eligible for the requested build iOS 5

If you are done trying iOS 5, you can downgrade iOS 5 to iOS 4.3.3 anytime using shift+restore method again (but choose iOS 4.3.3 instead).

Any problem? Drop in the comment form below.