Apple Starts Signing Firmware All the Way Back to iOS 6.1.3 Up till iOS 11.2 - Downgrade Now if You Want to Jailbreak!
How to officially downgrade your Apple iPhone 4s to iOS 6.1.3
Download iOS 6.1.6 for iPhone 3GS and iPod touch 4G
How to downgrade iPhone 4S / iPad 2 to iOS 6.1.3 - iFixit Repair Guide
Unlock iOS 6.1.6 with Ultrasn0w Fixer For iPhone 4 / 3GS [Guide]
Apple releases iOS 7.0.6, iOS 6.1.6 with various bug fixes
question] I restored my iPhone 3gs on 6.1.6 with ipad baseband what should I do now ? : r/LegacyJailbreak
How to jailbreak iOS 6.1.2 with evasi0n 1.4
iOS 6.1.1
How to Downgrade Your iPhone 4S or iPad 2 to iOS 6.1.3 « iOS & iPhone :: Gadget Hacks
iOS 6 IPSW [Direct Download Links] | OSXDaily
iOS 6.1.3 Released with Minor Fixes & Improvements [Download Links] | OSXDaily
iPhone 3GS Untethered Jailbreak and Unlock for iOS 6.1.6 and 6.1.3 with Baseband 05.16.08 - YouTube
How to Downgrade iPhone 4s from iOS 9 to iOS 6.1.3 (Without SHSH Blobs) – iPodHacks142
Jailbreak definitivo firmware iOS 6.1.2 su iPhone (5, 4S, 4, 3GS) iPod Touch (4G, 5G) e iPad mini e iPad (2, 3, 4 retina Wi-Fi e 3G) unthetered con evasi0n [MAC & Windows] | Featured