Serg008.... Sorry but I'm a bit confused. For a couple of us the G580, same model number as listed above and the "Check PM" advice, we have not been able to install the updated firmware. Did you figure something out?
Serg008, So I am backing up the existing bios with the flas**t utility, flas**t -g. Then that bios backup made with the -g command parameter I am reflashing back to the G580 with the flas**t.exe BACKUP.ROM /all -MC. Is that the end of the process? Do I need to then try the previous bios that is generating the error 28 thing? When you say "flash this backup back (in pure DOS env.)" the "this" reads as if you are referring to a particular bios. It is great to see John was able to succeed.
Lenovo provided this regarding turning off Secure Boot. When you are shutting down the device Press (SHIFT + SHUTDOWN from the power menu) .........
That's great John. Since a couple of us are trying to crack our G580's can you update us on the process? Did you do as the previous post directed with flas**t and then a tweaked firmware?
What is "this" backup? I don't see any attachment, etc. I don't know what you are referring to with "this backup"?
Thanks John. A couple of us are not able to do the update as you did. When we try even with SecureBoot, etc., turned off, we get the Error 28 message despite using Flash2. I wish we could. Isn't working. Serg008 has suggested a different process. Which I will try once I understand which bios he is referring to with "this bios" in his direction. So you just cloned the hard drive to the SSD and then swapped them? Jim
Serg008 Thank you for the clarification. When I write the backed up bios back with the /all -MC parameter that removes the White List? Turns it off? John, I ordered and just received those disks too. Thinking though pop the SSD in an external case and use EASEUS or Mini-Partition Tool and clone the hard drive to the SSD would be faster. Would have to make sure the hdd partition is same size as the SSD but that is easy too with EASEUS or Mini-partion and both tools are free. I'm using the HP utility and MSDOS files to make my DOS boot disk. It works fine. The steps for using it are listed here. Making the DOS boot thumb drive is not where the problem lies. Yes the button when booting up takes me to a menu that allows me to enter the bios. Holding F2 does as well. For my G580, and several others as now the thread about it on the Lenovo forum is growing, the steps to disable Secure Boot were not spelled out and by default the option was not available to change. It was listed, could see it, could not high light it to change anything. Yesterday Lenovo support shared the Shift Shut Down thing. A couple of us found out by experimenting you can make the option live even with UEFI by activating admin password. Which sorta makes sense. You wouldn't want just anyone fiddling with Secure Boot. Once you change Secure Boot you can eliminate the password and Secure Boot stays disabled. While it is a bit torturous to read back through the thread if you look you'll see myself and at least one other who posted about our error 28 thing. I'm very glad yours worked. I wonder why some of the very same laptops the normal process works and for some it doesn't. I have the same version number G580, 20157. Soon as I can I will try the flas**t process. I would like to know what I'm actually doing to the bios by using it though. None of us want to brick our laptops. Serg008 has been a great help and resource.
No, when flashing the backup (dump) the whitelist will not disabled. We check the ability for flashing of the modified BIOS. If your backup(dump), made with the flas**t.exe, will flashed successfully, I will do a new mod from this dump to disable the whitelist.
Thanks. That makes more sense. Instead of the last backup BIOS I put on Sendfiles I'll put the backup.rom from Flas**t and we try again following the regular process. It is odd that John's G580 same model number works and at least 2 of ours don't.