iOS 4.1 on iPhone 3G speed + performance | OSXDaily
How to downgrade iPhone 3GS from iOS 6.1.6 to 4.1 - No blobs, No iPad Baseband - With Carrier - YouTube
Fluff] My iPhone 3GS with iOS 4.1 and a nearly brand new battery : r/LegacyJailbreak
Jailbreak iPhone 3GS on iOS 4.1 with PwnageTool [How to Guide] | Redmond Pie
Apple Launching iOS 4.1 8th September
Download iOS 4.0.1 for iPhone 4, iPhone 3GS and iPhone 3G | Redmond Pie
GUIDA: Ecco la guida per sbloccare l'iPhone 3GS, l'iPhone 3G e l'iPod touch 2G con iOS 4 su Windows - HDblog.it
Tutorial: Jailbreak iPhone 4.1 with PwnageTool
GUIDA: eseguire il jailbreak del firmware 4.1 con PwnageTool [MAC] - iPhone Italia
I've been trying for 4 months to get my New BOOTROM iPhone 3GS to iPhone OS 3.1.3 but everything I've tried has failed. It's currently on iOS 4.1, does anybody have anything