Hey, I had 4.3.1 on my iphone but it was getting very slow with so many tweaks, so i saved the blobs and i tried to install 4.3.3 but in the middle i got error 1013, after 2 more times of trying and getting that error i got the error that says this firmware wont work on this iphone or well it went something like that. after i read that apple blocked 4.3.3 and so basically im stuck with no ios on my phone since it gliched. i then had no choice but to go on 4.3.4 but i knew that it might be fine since my blobs are saved both through cydia and tinyumbrella. so i was wondering how to downgrade to 4.3.1 or 4.3.3, because i have no idea how to. thanks!!