Technical FAQs

Ask a Question

How do I update the firmware of my SMT, SMX, or SMC series Smart-UPS using the Firmware Upgrade Wizard?


There are two methods to update the firmware of the UPS:
  • Locally via a Serial or USB connection using the Firmware Upgrade Wizard application
  • Remotely via the Network Management Card (SMT or SMX models)
  • The Firmware Upgrade Wizard is the most reliable and preferred method of upgrading.

If you have a previous version of the Firmware Upgrade Wizard or Firmware Images, delete the old version and download the latest revision.
If you need to upgrade an SRT unit, or need to upgrade via the Network Management Card, refer to Kbase #FA164737

Links to download all necessary files can be found at the end of this document.

Product line:

Smart-UPS SMT, SMX, and SMC Families


In general, all Smart-UPS models beginning with "SMT", "SMX", "SMC" are supported via USB or Serial.
Since we will continually release new products that are supported by the tool, we identify devices that are NOT supported.

Devices that are *NOT* supported by the Firmware Upgrade Wizard:

  • SMX750, SMX1000, SMX1500 with firmware UPS 02.x or lower. (These units are 120 V devices built prior to date code 1037)

Devices that are supported via *Serial ONLY*:

  • SMX Units with firmware earlier than UPS 07.2

  • SMT units with firmware earlier than UPS 08.0
    Note: No harm will occur if you attempt to update firmware via USB port on the above units. A warning message will indicate that the unit does not support firmware update via this method, and the Firmware Upgrade Wizard will close. 

The system requirements for the Firmware Upgrade Wizard are as follows:
Operating systems: Microsoft Windows XP®, Windows Vista® , Windows 7®, Windows 8®, 8.1®, and Windows 10®
To find your current Firmware level:
Run the Wizard and it will identify the current firmware version before performing the update.
For all but SMC unit:
From the main menu of the UPS LCD screen select "About" and scroll down to "UPS Firmware"

Firmware Revision Matrix
 UPS Model  Firmware after Update
 SMC (All models, All firmware)  UPS 09.8
 SMT Tower ( firmware less  than UPS 08.0 )  UPS 07.1
 SMT Tower ( firmware UPS 08.0 or greater)  UPS 09.3
 SMT 2U Rackmount   UPS 09.3
 SMT 1U Rackmount (Follow "SMX 1500VA or less" firmware)  UPS 09.8
 SMX 1500VA or less (firmware UPS 02.x)  Not Upgradable
 SMX 1500VA or less (firmware greater than UPS 05.0)  UPS 09.8
 SMX 1500VA or less (firmware less than UPS 05.0)  UPS 03.8
 SMX Larger than 1500 VA - (firmware greater than UPS 07.0)  UPS 07.4
 SMX Larger than 1500 VA - (firmware between UPS 05.0 - UPS 07.0)  UPS 06.8
 SMX Larger than 1500 VA - (firmware less than UPS 04.0)  UPS 02.0

Note: You must use the serial cable that is included with your UPS. If upgrading via USB, it is recommended that you use the included USB cable.



Customers wanting to upgrade their UPS firmware should download  "Firmware Upgrade Wizard v4.1.1" as well as the "Firmware Upgrade Wizard Manual v4.1.1"  files. 
  • The "Firmware Upgrade Wizard v4.1.1" file contains the self-extracting executable file, as well as all necessary UPS firmware images.
  • Read the "Firmware Upgrade Wizard Manual v4.1.1" before beginning the process.
  • The users manual provides a complete step by step walk through of the process including all necessary screenshots.
The complete process will take 5-20 minutes and will require that you power down any load attached to the UPS.
If you run into any issues during the process or have any additional questions, please contact APC Tech Support.

Links to Downloadable Files:
Firmware Upgrade Wizard v4.1.1
Firmware Upgrade Wizard User's Manual v4.1.1
Firmware Update Images v4.1 (Includes Release Notes for the specific images)

(Downloads will open in a new browser window.)
NOTE: If you have a previous version of the Firmware Upgrade Wizard or Firmware Images, it is advised that you delete the old version and download the latest revision.
Was this helpful?
What can we do to improve the information ?