Hi Partheeban,
You mean to say you are trying to deploy patch 0 through SUM tool and it doesn't work. Is it throwing some error? How did you deploy UI5 sca..? I think the same way you should be able to deploy patch 0 also.
One more thing, just curious to know why you want to revert to patch 0 even after you have patch 2 working.
Regards,
Ria