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How do I update my Smart-UPS firmware using the web interface of my Network Management Card?


Because the Firmware Upgrade Wizard is the most universal and preferred method of updating, we recommend using the APC Firmware Upgrade Wizard whenever possible. The APC Firmware Upgrade Wizard guides you through the update process and provides a consistent update experience. The Firmware Upgrade Wizard is available in FA279197. Not all models are supported by the Firmware upgrade Wizard. Instructions are being provided here for users that are unable use the Firmware Upgrade Wizard or prefer to update their Smart-UPS Firmware using the web interface of an APC Network Management Card (NMC). For those who wish to update their Smart-UPS Firmware using the NMC's command line interface (CLI), see FAQ000242942 .

Product Line:

Smart-UPS models with the prefixes SCL, SMC, SMT, SMTL, SMX, SRT, SRTL, SRYL, XP, and XU with a SmartSlot or embedded NMC.

  • Supported UPS model listed above
  • Supported Web browsers: Microsoft® Internet Explorer® (IE) 8.x or higher, with compatibility view turned on; the latest release of Microsoft® Edge®; the latest releases of Mozilla® Firefox® or Google® Chrome®
  • UPS Network Management Card 2 (AP9630, AP9630CH, AP9631, AP9631CH, or embedded NMC2) with SUMX application firmware v6.4.0 or higher
  • UPS Network Management Card 3 (AP9640, AP9641, AP9643, or embedded NMC3) with SU application firmware 1.0 or higher
  • Correct firmware file for the particular UPS available to download at the end of this document.


Follow the steps below to determine your current NMC firmware revision, select the proper UPS firmware file, and update the UPS firmware via the Network Management Card web interface.

NOTE: When performing the UPS firmware update using the NMC web interface, while connected to the web interface over Wi-Fi, a different network, or VPN, a file transfer timeout may occur if an HTTPS connection is used. Refer to FAQ000234317 for alternative methods to update the UPS firmware using the NMC.

Step 1 - Check if you have a Network Management Card 2 running Smart-UPS / Matrix Application, or a Network Management Card 3 running Smart-UPS Application, and ensure there are no active alarms reported.

Network Management Card 2 running Smart-UPS / Matrix Application:

Network Management Card 3 running Smart-UPS Application:

Step 2 - If using Network Management Card 3, go to Step 3.
If using Network Management Card 2: Verify the firmware revision of your Network Management Card. From the NMC web interface choose “About”, then “Network”. The firmware must be v.6.4.0 or higher, but we recommend you always run the latest available NMC firmware. To update the firmware of your Network Management Card, refer to FA156047 .

how to check NMC FW

Step 3 – Identify the correct UPS Firmware file.
Note: Always update to the latest Network Management Card firmware before updating the UPS firmware.  See .  See FA156047, FAQ000261841
  • Download and unzip the Firmware file available to download at the end of this document. Save the folder on a local drive.
  • From the NMC web interface choose “About”, then “UPS”:
  • Identify the "ID" number to select the proper firmware file for your UPS.
    • For example, for a UPS with ID 1025 the proper filename will be SRT1025UPS_15-0.enc
how to check UPS FW
The "ID" is a unique identifier for the hardware platform of your UPS. You need to use the "ID" number to make sure to select the correct firmware file. A particular UPS model may have different "ID" numbers depending on when it was manufactured, or its current firmware version. Always check the "ID" number of the UPS before starting the update, and ensure you use a firmware file with the compatible ID. If the incorrect file is used, the update will be refused, and will need to be restarted using the correct firmware file.

Use the table below to determine the correct firmware file. Some of the following firmware files are not attached to this FAQ document. Always check the product page on apc.com for the latest firmware file. Example:

download from web
Firmware FileLatest
Update with
Output On
via NMC
SCL1048SCL1048UPS_16-5.encUPS 16.5YesYesEnabledThis FAQ
SMC1005SMC1005UPS_15-1.encUPS 15.1NoNoConfigurableThis FAQ
SMT17SMT17UPS_07-1.encUPS 07.1NoNoEnabledThis FAQ
SMT18SMT18UPS_15-0.encUPS 15.0NoNoConfigurableThis FAQ
SMT20SMTSMX20UPS_15-0.encUPS 15.0NoNoConfigurableThis FAQ
SMT1015SMT1015UPS_17-2.encUPS 17.2YesYesConfigurableThis FAQ
SMT1027SMT1027UPS_17-2.encUPS 17.2YesYesConfigurableThis FAQ
SMT1031SMTSMX1031UPS_15-5.encUPS 15.5YesYesConfigurableThis FAQ
SMT1039SMT1039UPS_15-5.encUPS 15.5NoYesConfigurableThis FAQ
SMT1040SMT1040UPS_15-0.encUPS 15.0NoNoConfigurableThis FAQ
SMT1041SMT1041UPS_15-0.encUPS 15.0NoNoDisabledThis FAQ
SMT1050SMTSMX1050UPS_16-5.encUPS 16.5YesYesConfigurableThis FAQ
SMT1059SMT1059UPS_16-5.encUPS 16.5YesYesConfigurableThis FAQ
SMT1060SMT1060UPS_02-0.encUPS 02.0YesYesConfigurableThis FAQ
SMTL1026SMTL1026UPS_15-5.encUPS 15.5YesYesConfigurableThis FAQ
SMTL1047SMTL1047UPS_16-5.encUPS 16.5YesYesConfigurableThis FAQ
SMTL1064SMTL1064UPS_01-8.encUPS 01.8YesYesConfigurableThis FAQ
SMX20SMTSMX20UPS_15-0.encUPS 15.0NoNoConfigurableThis FAQ
SMX23SMX23UPS_15-0.encUPS 15.0NoNoConfigurableThis FAQ
SMX1003SMX1003UPS_15-0.encUPS 15.0NoNoConfigurableThis FAQ
SMX1031SMTSMX1031UPS_15-5.encUPS 15.5NoYesConfigurableThis FAQ
SMX1050SMTSMX1050UPS_16-5.encUPS 16.5NoYesConfigurableThis FAQ
SRT1001*SRT1001UPS_02-9.encUPS 02.9NoNoEnabledThis FAQ
SRT1002SRT1002UPS_15-1.encUPS 15.1NoNoDisabledThis FAQ
SRT1010SRT1010UPS_15-5.encUPS 15.5From UPS 07.9YesEnabledThis FAQ
SRT1013SRT1013UPS_15-1.encUPS 15.1NoNoDisabledThis FAQ
SRT1014SRT1014UPS_15-1.encUPS 15.1NoNoDisabledThis FAQ
SRT1019SRT1019UPS_15-5.encUPS 15.5From UPS 07.1YesEnabledThis FAQ
SRT1020SRT1020UPS_15-8.encUPS 15.8YesYesEnabledThis FAQ
SRT1021SRT1021UPS_15-6.encUPS 15.6NoYesEnabledThis FAQ
SRT1024SRTSRTL1024UPS_15-5.encUPS 15.5From UPS 00.4YesEnabledThis FAQ
SRT1025SRTXU1025UPS_15-5.encUPS 15.5From UPS 07.3YesEnabledThis FAQ
SRT1043SRTXU1043UPS_16-5.encUPS 16.5From UPS 16.5YesEnabledThis FAQ
SRT1044SRT1044UPS_16-9.encUPS 16.9YesYesEnabledThis FAQ
SRT1045SRT1045UPS_16-6.encUPS 16.6NoYesEnabledThis FAQ
SRT1046SRTSRTL1046UPS_16-5.encUPS 16.5From UPS 16.5YesEnabledThis FAQ
SRTL1024SRTSRTL1024UPS_15-5.encUPS 15.5From UPS 00.4YesEnabledThis FAQ
SRTL1034SRTL1034UPS_06-3.encUPS 06.3YesYesEnabledse.com
SRTL1035SRTL1035UPS_06-3.encUPS 06.3YesYesEnabledse.com
SRTL1046SRTSRTL1046UPS_16-5.encUPS 16.5From UPS 16.5YesEnabledThis FAQ
SRTL1062SRTL1062UPS_4-3.encUPS 04.3YesYesEnabledse.com
SRTL1063SRTL1063UPS_4-3.encUPS 04.3YesYesEnabledse.com
SRTL1226SRTL1226UPS_3-3.encUPS 03.3NoYesEnabledThis FAQ
SRTL1227SRTL1227UPS_1-1.encUPS 01.1NoYesEnabledThis FAQ
SRYL1225SRYL1225UPS_13-3.encUPS 13.3NoYesEnabledThis FAQ
XP1016XP1016UPS_15-0.encUPS 15.0NoNoEnabledThis FAQ
XU1017XU1017UPS_15-6.encUPS 15.6From UPS 01.4YesDisabledThis FAQ
XU1025SRTXU1025UPS_15-5.encUPS 15.5From UPS 07.6YesEnabledThis FAQ
XU1033XU1033UPS_15-6.encUPS 15.6From UPS 00.3YesDisabledThis FAQ
XU1043SRTXU1043UPS_16-5.encUPS 16.5From UPS 16.5YesEnabledThis FAQ
XU1057XU1057UPS_16-5.encUPS 16.5YesYesEnabledThis FAQ
XU1058XU1058UPS_16-6.encUPS 16.6YesYesEnabledThis FAQ

  1. *For SRT UPS models with ID of 1001, the UPS firmware must be updated twice. First update the UPS firmware using SRT1001UPS_02-9.enc. This will change the UPS ID to 1013. Once the update to UPS 02.9 is completed, perform the firmware update again using SRT1013UPS_15-0.enc
  2. We do not recommend using these firmware files for now. For more information, please refer to FAQ000266396.
  3. It is not recommended to perform a firmware downgrade to a lower firmware version.
  4. In rare situations, the UPS firmware update may not install automatically after the firmware file was transferred to the UPS. Refer to FAQ000258690 to complete the UPS firmware update.
  5. For more information about enabling or disabling firmware updates via the NMC for the UPS models that support this feature, refer to FAQ00024438.
  6. Once firmware updates via the NMC have been disabled, attempts to update the UPS firmware using the NMC will be refused:
  7. For SRYL (Smart UPS Modular Ultra), if upgrading from 13.2 or greater you may put the UPS into Manual Bypass. See Set the UPS to Manual Bypass Mode section in the Smart UPS Modular Ultra Manual.
FW update refused

Step 4 – The majority of UPS models support firmware update with output on. Refer to the above table, and if you have a UPS that supports firmware update with output on, go to Step 5.

NOTE: For UPS devices that require the UPS output to be off before initiating the update, ensure that network access is not dependent on the UPS for power, when updating via the Network Management Card.

If network access is dependent on the UPS for power, refer to FA279197 for instructions on updating the UPS firmware using the Firmware Upgrade Wizard.

If network access is not dependent on the UPS for power, ensure the attached load is correctly shut down before proceeding with turning off the UPS output.

prompt if UPS output must be turned off

To turn off the UPS output, from the NMC web interface choose “Control”, then “UPS”:

how to turn off UPS output

how to turn off UPS output 2

Step 5 – Navigate to the "Configuration" Menu, select "Firmware Update", then use the "Choose File" button to browse for the correct firmware file downloaded and identified in Step 3.
Once the correct Firmware file has been selected, click the “Update UPS” button to apply the update.

how to update UPS FW

The below window will open after selecting “Update UPS”

UPS firmware update in progress

  1. The update may take several minutes. When this window closes, the update is complete. Verify that the new UPS Firmware version is shown using the same procedure shown in Step 3.
  • Note: For Smart UPS Modular Ultra, the update may take more than 20 minutes to complete
  1. If the update does not complete, or if any errors are displayed, ensure that the conditions in Step 1 are met. Try updating the UPS firmware with the UPS output turned off. If no alarms are shown, try updating the UPS firmware using the Firmware Upgrade Wizard, which can be found in FA279197.

Step 6 - If the UPS output was turned off in Step 4, the UPS output should now be turned back on.
From the NMC web interface choose “Control”, then “UPS”
“Skip outlet on delays” may be selected if required to restore power immediately.

how to rurn on UPS output

The attached load can now be turned on.
For any issues encountered during the update process or any additional questions, please contact APC Tech Support

APC Saudi Arabia


SRTL1227UPS_01-1.zipSRTL1227UPS_01-1.zip [8.78 MB]
Firmware Files.zipFirmware Files.zip [48.58 MB]
SRYL1225UPS_13-3.zipSRYL1225UPS_13-3.zip [3.97 MB]
SRTL1226UPS_03-3.zipSRTL1226UPS_03-3.zip [8.6 MB]
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