This article is for informational purposes only and no longer being updated by Seagate.

Firmware Update for STM3500320AS, STM3750330AS, STM31000340AS


Firmware update information for certain Maxtor-brand DiamondMax 22 Serial ATA drives. Check to see if your model is included.

New firmware version: MX15

You can verify the proper firmware revision for your drive model and serial number using the Drive Detect software.

This update applies to the following models:

Model Number Capacity Firmware Download (.exe) Firmware Downloads (.iso image)
STM31000340AS 1TB MX1A in .exe format MX1A-3D4D in .iso format
STM3750330AS 750GB a MX1A-3D4D in .iso format
STM3500320AS 500GB a MX1A-2D in .iso format

Procedure for .exe file
See Document ID: 004559 for instructions on updating your firmware in Windows.

Procedure for .iso file
See Document ID: 004989 for instructions on updating your firmware in Windows using this .iso file.
See Document ID: 004301 for instructions on updating your firmware in MacOS using this .iso file.

 If the firmware upgrade installation instructions are not followed properly, the firmware upgrade could be data destructive and/or render your hard drive inoperable. As Seagate does not warrant the data on your drive, in addition to regular back-ups, your data should be backed up, if possible, before upgrading the drive firmware. Additional information on backing up the contents of your drive can be found at our Knowledge Base. Though this firmware upgrade to your product is a change to the product, the terms and conditions of your Seagate warranty for the product will remain effective to its normal expiration. For other warranties on your product, please consult the warranty documentation provided by your supplier.