Showing results for 
Show  only  | Search instead for 
Did you mean: 

VIXIA HF G70 UVC not working? Can't power camera (over USB-C) if UVC *was* working?!


My G70 arrived and I've tried three USB-C cables with it.  All three fit the camera just fine.  (this is good!)

The Bad? 

  1. None of my cables allow my computer to recognize the camera as a UVC camera.  The "USB Mode" is set in the camera to "Video Output (UVC)"
  2. I tried plugging the other end directly into a USB hub -- the battery does not charging or recognize that it's plugged in.
  3. Using the A/C adapter which comes with the camera (with USB end) *does* properly power the camera, which detects it and reports "DC IN" where the battery meter typically would otherwise be.

So -- this all looks like some bad news for us users.  My summary observation is:

  1. It is impossible to use the G70 as a UVC camera while also plugged into A/C power.  Both use the single USB port on the camera
  2. The USB port on the camera so far seems not to function using standard USB cables and bricks for either charging OR acting as UVC camera (when plugged into a computer).   Noting the camera says it requires 9V, and the adapter which ships with it reports it can output 5V (3A) or 9V (3A), my guess is the camera requires 9V over USB-C only to charge it, and it likely won't charge while also outputting a UVC signal (if that even works, which I could not test)

Has anyone here actually gotten the G70 to work successfully as a UVC camera?   Did it charge while outputting video?

Seeing as the G70 takes away several things from the G50 (e.g. removal of the mini-shoe), and only adds a better flip-out display and UVC, if UVC isn't working or practical here, it seems to me the G50 might be an overall better choice.


Product Expert
Product Expert

Greetings redrob,

You may plug the USB Power Adapter PD-E1 to the DC IN terminal on the side of the camera to power the camera which would allow for you to connect the USB-C cable to the USB terminal of the camera to allow you to connect the camera to your computer. In case you're experiencing communication issues between the camera and computer, then we recommend on connecting the camera directly to a USB port of the computer instead of using a USB hub.

Thanks Natalya!   I did discover the 2nd USB port on the front-right for connecting with the computer for UVC output.  It worked properly this way, but I'm really disappointed that the camera does not implement audio over UVC -- seriously -- if you're going to have it look like a Webcam, add the USB audio device too like most Webcams do; without audio, it feels only like a half-baked solution and hardly useable as-is.

Will there be a firmware update to add audio over UVC?

Also, besides the Canon power adapter, can we use a generic 3rd party power charger to the camera since it's a USB-C plug?  If so, will any generic USB-C work if it supports Universal Power (so it can output 9V)?

03/28/2023: New firmware version is available for EOS-R5 C
03/14/2023: New firmware version 1.8.1 is available for EOS R6

03/02/2023: New Firmware Updates Are Available:

EOS R7 - Version 1.3.0EOS R10 - Version 1.3.0
02/24/2023: We've updated Share Your Photos

2/07/2023: New product announcements!

EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM
01/18/2023: New firmware version 1.1.1 is available for EOS R6 Mark II
01/09/2023: Help ensure your autofocus is properly aligned with a Canon Precision Alignment
01/03/2023: Welcome to CES 2023!
12/08/2022: New firmware version is available for EOS C70
12/07/2022: New firmware version 1.7.0 is available for EOS R5
11/22/2022: New firmware available for EOS R3, EOS R7 and EOS R10
11/16/2022: We're thrilled to be ranked among the Best Employers for Veterans in 2022 by Forbes.
08/31/2022: New firmware version 1.1.1 is available for RF 70-200mm L IS USM
08/09/2022: New firmware version 1.2.0 is available for CR-N 300
08/09/2022: New firmware version 1.2.0 is available for CR-N 500
07/14/2022: New firmware version 1.0.1 is available for CR-X300
06/10/2022: Service Notice:UPDATE: Canon Inkjet Printer continuous reboot loop or powering down
06/07/2022: New firmware version 1.3.2 is available for PowerShot G7 X Mark III
05/31/2022: Did someone SAY Badges?
05/26/2022: New firmware version is available for EOS-C500 Mark II
05/26/2022: New firmware version is available for EOS-C300 Mark III
05/10/2022: Keep your Canon gear in optimal condition with a Canon Maintenance Service
05/05/2022: We are excited to announce that we have refreshed the ranking scale within the community!
03/23/2022: New firmware version is available for EOS-C70
02/09/2022: Share Your Photos is back!
02/07/2022: New firmware version 1.6.1 is available for EOS-1DX Mark III
01/13/2022: Community Update. We will be retiring the legacy profile avatars on 01/20/2022. Click this link to read more.