: The last major release utilizing the classic DOS-based framework. It is highly sought after because it allows users to natively build a bootable USB package under modern operating systems to service classic to semi-modern ThinkPads (such as the T460, T470, X1 Carbon Gen 5/6, etc.). Step-by-Step Guide: Creating the Bootable Maintenance USB
Connect a USB flash drive (any capacity up to 16GB will suffice; it will automatically adjust format limitations).
Your computer will automatically restart into a black flashing environment.
This link points to a server managed by Lenovo. The file downloaded from this source is the . i7tm38us 1.90 version.exe download
The prompt will request a device designation code; input or C0 depending on your generation prompt requirement.
Follow the on-screen terminal configuration prompts to clear your drive and map the system image. Method B: Manual FreeDOS Formatting (Alternate fallback)
A BIOS update can take up to 10 minutes. If the screen stays black for over 30 minutes, it may indicate a failed flash, which might require a CMOS reset. "Version Not Compatible" Error : The last major release utilizing the classic
Boot from the created disk and run the executable to access the maintenance menu.
A frequent problem users report is that the usbfmtpw.exe tool included in the standard i7tm38us package may fail to create a bootable USB drive, even when using Version 1.90 on Windows 10.
Downloading this tool from untrusted websites is a security risk. The safest and most reliable method is to use the direct link from Lenovo’s official support server. Your computer will automatically restart into a black
Once the USB drive is provisioned, you must safely boot into it and interface with the EEPROM. Step 1: Bypass the Hardware EEPROM Write Protection
. It is specifically used by technicians to program the Machine Type Model (MTM), Serial Number, and UUID into a new system board after a motherboard replacement. 1. Download and Extraction Download the executable directly from the Lenovo Support site or authorized archives. Extraction: