Issue:
There is currently an issue using v4.3.X Firmware Upgrade Wizard when trying to update the firmware of your SRTL3KRM1UC or SRTL3KRMI1UC Smart-UPS from 3.5 to 5.0.

Product Line:
Smart-UPS SRTL2K2RM1UC (NC), SRTL3KRM1UC (NC) models

Resolution:
Our Firmware team is currently working on a fix for the next Firmware Upgrade Wizard release.

In the meantime, please use this alternative upgrade to your UPS:

1. Download the Smart-UPS_Firmware_Upgrade_Wizard_v4.2.1.exethat is attached to this FAQ and go through the regular UPS firmware upgrade process.
2. Download SRTL1035UPS_05-0.enc and SRTL1034UPS_05-0.enc firmware files that are attached to this FAQ.
3. Follow the steps outlined in FA27919. When running Smart-UPS_Firmware_Upgrade_Wizard_v4.2.1.exe and browsing for the firmware file, select either the SRTL1035UPS_05-0.enc or SRTL1034UPS_05-0.enc downloaded in step 2, depending on the ID of your UPS. Follow the link the video guide on How to locate the UPS ID for APC Smart-UPS. The Firmware Upgrade Wizard will only allow selecting the appropriate file.
4. Use the USB-A to USB-B communication cable (APC940-0273A) supplied with the UPS, and not the serial cable for the update.

For any issues encountered during the update process or any additional questions, please contact APC Tech Support

Released for: Schneider Electric Vietnam