All About Smartphones

Updated: I decided to upgrade an iPhone 4 with baseband 04.10.01 running iOS 5.1.1. The device was hacktivated and unlocked using Gevey. After 30 minutes I successfully landed on iOS 6.1 baseband 04.10.01 and still unlocked with Gevey sim. Ultrasn0w 1.2.8 couldn't download because it was not compatible with my iOS 6.1 which is strange. Through out the whole process, both Gevey and SIM remained in the phone. Here are my steps in a easy fashion and i Hope you find it useful. This post was published in February before iOS 6.1.3 was launched. If you want to install iOS 6.1 now, you will need SHSH blobs NEEDED ITEMS 1. Sn0wbreeze 2.9.9 2. iOS 6.1  - 6.1.2 IPSW 3. Internet connection 4. Redsn0w 0.9.15b3 5. Ultrasn0w 1.2.7 and Mobile Substrate 6. iTools or iFunbox or iExplorer NOTE 1: This post does not apply to those that want to upgrade to iOS 6.1.3 NOTE 2: If you want to update to the IPSW in this post as of now (1/March /2013), you will need SHSH...