Dell Optiplex 9020 AiO Bios Update not working

[reassor]

Well got this PC for simple system reinstal.

Did that but whatever i do MEI driver just does not work.

So i thought lets update bios. Downloaded A20 (current version is a14)ran it. Usual warning blah blah clicked ok and it rebooted and just loaded windows like nothing happened.. Im like wtf where is my flashing?

Tried under dos same ... F12 boot menu has bios flash update too so i tried there SAME.

Tried EVERY version other than downgrading.

It just like prepares for update reboots and nothing happens.

Im tearing my hair out cause mei does not work and also sleep (screen does not come on after sleep).

Any ideas how to force the bastard?

[SMDFlea]

Try version A15 ,then A17 etc. You have selected the AIO version and not the E which is for embedded systems ? .Did you uninstall and reinstall the ME driver after a reboot

[reassor]

I didnt think of downgrading but yeah i was reinstalling all kinds of mei There was allways handshake with firmware problem in system log.

I gave up. Client already took it ;p (said it was allways like that) Asked him if i should try and flash it with programmer for extra $$ but he didnt want to.

So im sorry i cannot finish this wierd 1 for other people.

Thx Flea