If in case the camera won’t initiate the update, it can be because the camera is not recognizing the update on the SD card. We do have some suggestions here that should help get the update working:
Format the SD camera before placing the update files in the root of the card (format on your computer, or DELETE ALL files in the camera's Delete menu);
NOTE: Reformatting the SD card will delete all data off of the card, so be sure that you save any videos or pictures you want to keep on your computer before reformatting the SD card.
Be sure to place the individual files on the root level of the SD card, not inside the UPDATE folder.
Once you have the necessary file(s) placed on the SD card, unplug it from the computer and insert the microSD card into your camera. Once it's plugged in, power on the camera. The update should automatically initiate.