Acer Aspire E5-571G Bios downgrade

[miha800]

Hello everyone. After upgrading to 1.32, turbo boost stopped working. I would like to return bios back to 1.27. How can I do this?

And also in bios 1.27 I would like to update cpu microcode

[litiums]

Hello, I have this notebook and I have recently updated the last bios 1.32 + set default settings.
But after that  I have problems with Geforce 840M video card (Crashes in game)
I desided to downgrade the BIOS to 1.27 but the flashing programm does not allow it (version compare error).
How can I install the "normal" version of bios to get a stable work???
Thank you!!