Correct me if i'm wrong or crazy,

but i "broke" one of the bioses on my UP5-Th while OC'ing (it's my fault i was using an old bios). So then i could not boot up with that bios.
I flipped the switch to the working bios, then went into q-flash. Then while i was in q-flash i flipped the switch to the broken bios, and then chose to flash bios.

Now both bioses are working.

Was there another way to do it?