By noua86 on Jan 13, 2017: #1 Hi there fine i hope you are my question is if a have a ps3 4.70 ofw and i make a (safeguard) backup and i do a restore backup in ofw 4.81 ? its work ? my ps3 is 4.81 what is the way to downgrade ? only with cobra ? e3 ? there is no another way ?