gia9552015

Hi, im new in this forum, i have a Lenovo y510p ,8gb ram, gt755m sli,HDD 1tb(hybrid)+128gb ssd(m2 sata), i have a problem, i recently bought the transcend m2 sata ssd 128 gb to use as principal hdd , when i put the ssd in my pc, the bios saw it, but after a bios update (v 3.08) bios doesnt see more the ssd and now there are a lot of problem to boot the normal hard disk (very very slow) , what can i do?? i think that i have to downgrade bios, but how?? i hope someone will help me , thanks!.