Is B1/B2 visa still valid if it got changed into F1 status?

Hello everybody,
I'd like to make sure that B1/B2 visa is still valid. I changed B1/B2 visa into F1 status, and l left U.S for my country.
So now I am thinking of travel to U.S with my B1/B2 visa, and i do not know it is ok or not. Does somebody know it or is there anybody in same situation like me?
Please thanks in advance.
Tranto.

No. Typically a visa in a different status kills the old one.