A while ago, Apple has released iOS 5 beta 6 for developers. If you are a registered in the iPhone Developer Program, you can download iOS 5 beta 5 right now and install it on your device. This guide will show you precisely how to install iOS 5 beta 6 on your iPhone, iPad and iPod touch.
Please keep in mind that iOS 5 beta 6 is an OTA update for supported iPhones, iPads and iPod touches. Meaning that your developer registered device will receive only the changes OTA and you won’t be required to download the whole iOS 5 beta 6 ipsw.
How To Install iOS 5 Beta 6 OTA On iPhone, iPad and iPod touch
Step 1: Go to the Settings.app.
Step 2: Tap on General.
Step 3: Scroll down and tap on Reset.
Step 4: Tap on Erase All Content and Settings.
Step 5: Tap on Erase iPhone/iPad/iPod touch, the device will ask you twice.
Step 6: Set up your device PC-free once again.
Step 7: Once you have set up the device, once again go in to the Settings.app.
Step 8: Now tap on General followed by Software Update. You will be shown the image posted below. Tap on Download and Install.
If you don’t want to install iOS 5 beta 5 OTA for reasons best known to you only, follow the steps documented below in order to install iOS 5 beta 5 on your iPhone, iPad or iPod touch using a Windows or Mac computer.
Step 1: Download iOS 5 beta 6 ipsw for your respective iDevice.
Step 2: Download iTunes 10.5 beta 6 for Windows and Mac.
Step 3: Back up your device with iTunes before proceeding.
Step 4: Windows users will launch iTunes and once their device is detected, will press and hold the Shift key and click on Restore. Mac users will press and hold the alt key and click on Restore.
Step 5: iTunes will now prompt you to select the ipsw you previously download in step 1. Navigate to where you saved it and select it.
Step 6: Now let iTunes 10.5 beta 5 install iOS 5 beta 5 on your iPhone, iPad or iPod touch. This process can take well up to 10 minutes so be patient.
If you have a software unlocked iPhone, stay away from stock iOS 5 beta 6 firmware. If you have a factory or officially unlocked iPhone, you may proceed to install iOS 5 beta 6 without any worries but otherwise please stay away.
For any help, please feel free to post your queries in the comments below.