This article is for informational purposes only and no longer being updated by Seagate.

DiamondMax 23 Firmware Update

Firmware update information for certain Maxtor-brand DiamondMax 23 Serial ATA drives. Check to see if your model is included.

New firmware version: CC3D

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 Downloads
STM31000528AS 1TB CC3D in .exe format
   See Document ID: 004559 for instructions on updating your firmware in Windows using this .exe file.

CC3D in .iso format
   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.
STM3750528AS 750GB
STM3500418AS 500GB
STM3320418AS 320GB
STM3250318AS 250GB
STM3160318AS 160GB

 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. 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.