Be sure to have a fully charged battery in the camera.
Without sufficient power, the update may fail or will not start.
It takes time to complete the update depending on the internet speed due to the large file size for the firmware.
Do not disconnect the USB cable during the update until the OK icon is displayed.
It takes about 5 minutes until the OK icon is displayed after the writing icon is displayed on the monitor of the camera.
Camera settings (including date and time) will be reset when you update the firmware of your camera to version 1.2.
Camera menus are displayed in English after the update.