Without blobs saved downgrading is impossible. Blobs are specific to each device and cannot be shared. Blobs for a particular iOS version can only be saved when that iOS was still bring signed by Apple, they can' tube saved after the fact.I have an iphone 4 ios 7.0.4 and i want to downgrade to ios 6.1.3 is there any way to downgrade if i don't have the shsh blobs saved???? And can i get the shsh from anywere else ?