Apple iOS 4 will be coming to iPhone & iPod touch users on June 21 but Golden Master Candidate is already out and developers can download iOS 4 from Apple developers center. Also, for the first time, iOS 4 torrent is also available for download accompanied with iTunes 9.2 torrent, which of course is illegal and NOT recommended. However if you’re finding it difficult to wait for June 21 iOS 4 release and don’t have a developer account either, you can go on with this guide to test iOS 4 on iPhone 3G, 3GS and iPod Touch.
NOTE: This process is for Mac users, Windows users can follow this guide to install iOS4 using Windows.
How to Install iOS 4
Before you Begin:
Make sure that you are not on Blacksn0w, ultrasn0w or yellowsn0w unlock as there is no update at the moment to unlock iOS 4.
Step 1: Download iTunes 9.2 (Rapidshare, DepositFiles).
Step 2: Download iOS 4 Gold Master for iPhone 3GS, iPhone 3G, iPod Touch 3G, iPod Touch 2G.
Installing iOS 4:
Step 3: Install iTunes 9.2 on Mac.
Step 4: Connect your iDevice to Mac & Sync with iTunes.
Step 5: Switch to iTunes, hold “alt” key and click on “restore” button.
Step 6: Locate and select iOS 4 IPSW file. Now let the iOS 4 transfer complete.
DISCLAIMER: We strongly recommend not to download iOS 4 torrent (with iTune 9.2) as its neither legal nor recommended way to upgrade to iOS 4. Guide posted here is purely for information purposes only and if anything goes wrong with your iDevice during/after the process, be ready to hold yourself responsible for that.
Update: Installed iOS 4 and yet feeling adventurous? How about moving on to jailbreak iOS 4 with Redsn0w 0.9.5 or would you wait for Sn0wbreeze 1.6?