04-29-2014 06:06 AM - last edited on 08-21-2019 06:50 AM by BiggAl
We recently have a defective board on one m93z, i got a technicien who came changing the board. After the motherboard switch i had a bios alert telling me that the serial number and the model are invalid in the bios. I ran a bios update from the exe on this website but it didn't work (os version).
The tech told me it was easy to change but right now, i have no idea what to do.
should i use winphlash and how?
Mod: edited Subject line to expand the problem description
Solved! Go to Solution.
04-29-2014 06:14 AM - edited 04-29-2014 06:14 AM
Good day and welcome to the community.
If the process for your machine is similar to that for ThinkPads, then the Lenovo-authorized servicer will have the software tools to set the info in your BIOS. These tools are not available to end users / consumers.
04-29-2014 05:00 PM - last edited on 08-21-2019 06:53 AM by BiggAl
Download the CD ISO version of the BIOS update for your machine. Burn this to disc and boot the computer from it. During the BIOS update, you are given the chance to update machine Model/Type and Serial Number.
Update: or use a USB drive and the process given in a post below.
04-29-2014 05:19 PM - edited 04-29-2014 05:41 PM
Download the CD iso version of the BIOs update for your machine. Burn this to disc and boot the computer from it. During the BIOs update, you are given the chance to update machine Model/Type and Serial Number.
Is this unique to BIOS updates on ThinkCentre machines?
I've never seen this ability in ThinkPad BIOS updates. It's well-known that there is a Service Center-only tool for updating this info.
Edit to add: I don't know if this applies to other models besides the M93z, but referring to page 130 of the HMM:
http://download.lenovo.com/ibmdl/pub/pc/pccbbs/thinkcentre_pdf/m93z_hmm.pdf losmeme is spot-on. The CD update version should offer the option to enter these values. Definitely different than the ThinkPad process.
04-30-2014 08:48 AM
Glad things worked!
And, thanks for marking the solution post. It may help other members.
09-21-2018 07:52 AM
1-insert an empty small capacity usb stick
2-download rufus and run it
3-choose the usb stick on DEVICE menu
4-choose FREEDOS on BOOT SELECTION menu and click START. WAIT FEW SECONDS TO COMPLETE.
5-download USB DRIVE UEFI BIOS FLASH PACKAGE zip file on the bios downloads section of the relevant device page and copy its contents into usb and overwrite Autoexec.bat when asked (not command.com) . If you don't have that file check contents of iso file available to download. It must have few files including an autoexec.bat. copy them all into usb.
6-boot from usb stick using f12 at startup. Rest is on your screen.
08-21-2019 07:17 AM
Run 'sys info' from Windows, does it show something valid for the model number? Do you have any paperwork from when you bought it? It may have that info on it.
Otherwise, you may need to research on the Lenovo website, and via Google, what your system model is, and input your best guess. And make up a serial number - both my ThinkCentres serial numbers start with 'MJ', the M73 is 8 alphanumeric long, the older M91p is 7.