Canon has made Canon EOS 5D Mark IV firmware update version 1.3.3 available for
download.
Firmware Version 1.3.3 incorporates the following fixes and enhancements:
- Fixes an issue, in which self-timer shooting cannot be performed in Firmware Version 1.3.1 and 1.3.2.
- Fixes an issue, in which an electronic beep does not sound when registering an AF frame as the AF start position in Firmware Version 1.3.1 and 1.3.2.
- Fixes an issue, in which a small sound is generated from the speaker when the power is turned on in Firmware Version 1.3.2.