EOS 1500D Firmware Version 1.2.1

Firmware Version 1.2.1 incorporates the following fix.

1. Improves operational stability during continuous commercial use of the camera.

If the camera's firmware is already Version 1.2.1, it is not necessary to update the firmware.

Preparations for the Firmware Update:
In the folder you downloaded are the firmware (CCF26121.FIR / file size: 15,233,376 bytes) and instructions on the firmware update procedures (a PDF file in five languages: Japanese, English, French, Spanish, and Simplified Chinese). Before starting the firmware update operations, please be sure to carefully review the instructions to confirm your understanding of the firmware update procedures

Further information:
EOS 1500D Firmware Download Link