downgrading OS

I have upgraded my OS to 10.3.700, it has so many bugs so please tell me any process to downgrade leaked OS to official OS in BlackBerry Z10 STL100-1

http://forums.crackberry.com/bb10-le...ersion-872821/

Follow these instructions...

Did you follow the instructions for loading the OS? Did you load the additional bar files?

nope....how to do that??

there's nothing such for downgrading in model STL100-1

running two CB accounts?