topic Re: PowerShot SX740HS Firmware Update Issues in Point & Shoot Digital Cameras

PowerShot SX740HS Firmware Update Issues

TheMoonman — Tue, 25 Nov 2025 20:38:07 GMT

Folks- I am having an issue updating the firmware on my SX740HS. I have downloaded the file to my computer. I have tried placing the zip file on the memory card in various folders using my computer. No matter where I place it on the memory card, when I return the memory card to the camera, and try to update the firmware, the camera tells me that there is no firmware on the card. Any suggestions? The instructions from Canon are not helpful.

Re: PowerShot SX740HS Firmware Update Issues

normadel — Tue, 25 Nov 2025 22:25:14 GMT

You don't put the ZIP file on the SD card. You unzip it on the computer and put the DRIVER FILE on the SD card.

Re: PowerShot SX740HS Firmware Update Issues

shadowsports — Wed, 26 Nov 2025 02:13:17 GMT

Greetings,

To add...

The file you need to copy to your SD card is this.

SX740HS143.FIR

It's file extension is .FIR. It's inside the zip which you need to extract (unpack)

Re: PowerShot SX740HS Firmware Update Issues

TheMoonman — Sun, 30 Nov 2025 21:42:48 GMT

Thanks normadel and shadowsports! I got it loaded.

Re: PowerShot SX740HS Firmware Update Issues

normadel — Mon, 01 Dec 2025 20:41:40 GMT

You're welcome. Please accept our answers as solutions.

Incidentally, Canon provides detailed, clear directions with the download.

Re: PowerShot SX740HS Firmware Update Issues

TheMoonman — Tue, 02 Dec 2025 22:36:33 GMT

Not really.

Re: PowerShot SX740HS Firmware Update Issues

Angelinade — Mon, 23 Feb 2026 20:43:49 GMT

I am also having problems with the camera recognizing the firmware. I was even on the phone with Canon Support and they were not sure why it would not recognize the firmware. What did you do that your camera all of a sudden recognized the file on the SD card? Thanks,