Reset BIOS Password on Acer Aspire V3 771G

Hello,

first of all... sorry for my bad english


I did a big mistake with my BIOS.

I downloaded a BIOS Update from the Acer Homepage.
Acer
Enhance system performance
2.28
3.1 MB
2014/02/07

For my Laptop Acer Aspire V3 771G - Model No. VA70
After I installed it i got a Message "No bootable device.Hit any Key"
The Problem is that i got a password at my BIOS, which i didnt know .

I already removed the BIOS Battery. Also I shorted the two points under the Ram Bolt( google translate ))  )

I really dont know how to reset this password.

I hope you can help me

Thanks