Micron C400 32GB/64GB/128GB/256GB mSATA Firmware Update

This package provides the Micron C400 32GB/64GB/128GB/256GB mSATA Firmware Update and is supported on the Alienware Notebook, Inspiron, Latitude, OptiPlex, Precision, Vostro and XPS models that are running Windows series operation systems.

Fixes & Enhancements

- Fixed issues where SSD may not be detected after a previous forced power cycle.

- Enhanced the device ready time, allowing system to be able to power up quickly.


Version 04MH, A00-00


Serial ATA

Release date

02 Mar 2013

Last Updated

21 Mar 2014


Available formats

File Format:ALL
File Name:Micron C400 mSATA 04MH.zip
Download Type:HTTP
File Size: 1 MB
Format Description:
To ensure the integrity of your download, please verify the checksum value.

By downloading, you accept the terms of the Dell Software License Agreement.

Supported Operating Systems
Windows 7, 32-bit
Windows 7, 64-bit
Windows 8, 32-bit
Windows 8, 64-bit
Applies to
Micron RealSSD mSATA
Installation instructions

1. It is highly recommended that full system backup be completed before starting this firmware upgrade procedure

Download and image extraction

1. Click Download to download the zipped file
2. Extract the file into a folder
3. The ISO image file is used to burn the utility onto a bootable CD


1. Ensure that your notebook is plugged into a AC power supply during the update process (high recommended)
2. DO NOT remove power from the system during the firmware update process
3. Ensure that your BIOS has been set to ATA or AHCI mode. DO NOT select RAID mode. This utility will not work in RAID mode
4. Ensure that your BIOS boot order has been set up to boot from CD drive
a. You can do so by either pressing F12 during the boot up and then select CD drive to boot from
b. Or by pressing F2 during the boot up, enter the boot order selection and select CD drive to boot from. Save the setting before exiting
5. Insert the bootable CD media with ISO image into yoursystem
6. Reboot the system from the bootable CD media, the firmware update utility will be started automatically
7. Connected Micron SSD drive that is eligible for the firmware update will be shown on the screen
8. Select Yes to the request for 'Update firmware on this drive?'
9. DO NOT power off the system during the update process, the update will take about 30 to 60 seconds. Some systems may require a longer time to complete.
10.Upon completion, the message 'Current Firmware is : 04MH' will be displayed.
Important Information
1. Equipment needed, a CD drive, a blank CD
2. Do not POWER OFF the system during the firmware update procedure
3. Please perform a full system backup before starting the firmware update procedure (highly recommended)
4. Connect your notebook to a AC power supply during the firmware update procedure (highly recommended)
5. The firmware utility tool is OS independent.
Warning: Do not turn off your computer or disconnect from your power source while updating the BIOS or you may harm your computer. During the update, your computer will restart and you will briefly see a black screen.

This driver has been tested by both the independent software vendor (ISV) and Dell on the operating systems, graphics cards, and application supported by your device to ensure maximum compatibility and performance. Details

Dell recommends the customer review specifics about the update to determine if it applies to your system. The update contains changes that impact only certain configurations, or provides new features that may/may not apply to your environment.