After the release of much awaited(?) 1.1.1 firmware for the iPhone, iTunes was pushing 1.1.1 update for iPhones bought till the last week. We all know that firmware 1.1.1 is the worst update so far despite minor enhancements. The question now is how do you upgrade to 1.0.2 from 1.0 & 1.0.1?? While I tried the Apache server and iTunes 7.4.1 trick, it dint’ deliver goods (I was offline when I tried it). I tried it on a Mac though. So,why upgrade to 1.0.2 from 1.0/1.0.1 while you can use the installer.app just fine on any firmware other than 1.1.1 to date? Stability reasons. 1.0 and 1.0.1 equipped iPhones constantly froze while using non-Apple applications – The only solution being holding the Home button and Power button till the iPhone reboots. Anyways, to upgrade to 1.0.2, first download 1.0.2 firmware and launch iTunes 7.4.1. Click on restore button (clicking on update button dint’ work) while holding the ‘alt’ button (mac) and then point to the .ipsw you downloaded earlier (dont’ rename it to .zip this time 😉 and sit back and enjoy while the iPhone is upgraded to a 3rd party apps-friendly 1.0.2 🙂