Downgrade 5.0.1 to iOS 5 Custom Firmware Using iFaith [How To Tutorial] | Redmond Pie
Fluff] got this iPhone 4 in a 4 & 4s lot. Battery connector was ripped off. I soldered it back on and it's on iOS 6.1.3. iFaith also shows blobs for 4.3.3 & 4.3.5 : r/LegacyJailbreak
Tuto iFaith : sauvegarde des SHSH et downgrade - iPhone Tweak
How to Downgrade iOS 7.1 to iOS 6.1.3 Using iFaith - Syncios Blog