[Noobyneedshelp]

I know this is totally random, but I can't find a thread that helps me with this question.
I've recently used a e3 flasher to downgrade my ps3 the downgrade files I used said in the description that it was gunna be downgraded to 3.55 csw but after the downgrade process was complete its saying its a 3.70 csw how can I go about downgrading to a 3.55 csw because I've read somewhere that you can't just swap the downgrade puk files over to the 3.55 one that I want , so maybe someone can help me with this and give me any advice also is there anywhere I can get a csw 3.55 csw

Thanks to anyone's help that anyone gives.