another x200 question

4 respuestas [Último envío]
rachad
Desconectado/a
se unió: 11/05/2019

hello i just wanna know if a x200 with libreboot installed can it be rolled back
to libreboot not installed
lets say to upgrade EC or for any other reason

chaosmonk

I am a member!

I am a translator!

Desconectado/a
se unió: 07/07/2017

> hello i just wanna know if a x200 with libreboot installed can it be
> rolled back to libreboot not installed lets say to upgrade EC or for
> any other reason

Did you libreboot it yourself, or did you buy it pre-librebooted. If
you librebooted it yourself, the docs tell you to backup the original
BIOS. Did you do that? If you bought it pre-librebooted, hopefully the
vendor upgraded the EC firmware before librebooting it.

rachad
Desconectado/a
se unió: 11/05/2019

> Did you libreboot it yourself, or did you buy it pre-librebooted

tomorrow it will be shiped to me its already librebooted

> If you bought it pre-librebooted, hopefully the
vendor upgraded the EC firmware before librebooting it

so if the EC firmware is not upgraded to latest its done cant go back to unlibreboote it and do it right?

chaosmonk

I am a member!

I am a translator!

Desconectado/a
se unió: 07/07/2017

> so if the EC firmware is not upgraded to latest its done cant go back to
> unlibreboote it and do it right?

Maybe, but I don't know how. Ask the vendor if they have upgraded the
firmware.

nadebula.1984
Desconectado/a
se unió: 05/01/2018

If you want to update EC, you have to temporarily roll back to official BIOS. This can be done using external programmer (and a pre-backuped BIOS image).

Beware, once you have roll backed to official BIOS, the whitelist restrictions are returned. You may need to remove the WLAN card, or else use one approved by Lenovo's BIOS, like this one: FRU 43Y6511 (an Atheros AR2425 variation).