Any body

remove BIOS Battery & leave it for 5 mins....voila.

demoninside9 said:

Hi friends.

Anybody knows how to unblock BIOS of a blocked BIOS system?

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What did ya mean by "blocked" ! Did you mean password protected ?
Also try to use more suitable title thread next time.

Yeah removing the cmos battery from mobo & putting it back some time later will reset cmos settings & remove any bios password