topic Re: 5d mark 4 melted a SD card in EOS DSLR & Mirrorless Cameras

5d mark 4 melted a SD card

Hsham — Wed, 05 Apr 2023 16:12:33 GMT

I have a 5d mark 4 camera.. I was shooting in photography mode with a godox camera flash attached while I was shooting i smelled a burning smell coming from the sd card slot, it was the SD card melting INSIDE THE CAMERA.. I changed the card and unattached the camera flash and tried it for a few takes it worked fine like nothing happened "i didn't change the battery though".

I wanna know what was that? What makes a camera melt a SD Card and how to prevent it from happening again??

Re: 5d mark 4 melted a SD card

wq9nsc — Wed, 05 Apr 2023 16:19:34 GMT

Most likely an internal short and failure occurred within the SD card unrelated to your camera body or the attached flash.

Contacts 3 and 4 on the SD card are voltage source and ground and it is unlikely there is separate circuit fusing for the SD card voltage feed so it can and will draw heavy current from the camera power bus if an internal short to ground occurs.

This isn't a common failure but NO component is 100% reliable/failure free including the extremely expensive mil and space certified components.

It is good that you got it out in a hurry (and without burning yourself) because it could have done tremendous damage to the camera body.

Rodger

Re: 5d mark 4 melted a SD card

Hsham — Wed, 05 Apr 2023 19:01:17 GMT

Thanks for the reply..

I also noticed that the flash had like a burn mark on the LED inside the flash but it also worked after, that's why i thought it might have something to do with it

Re: 5d mark 4 melted a SD card

normadel — Thu, 06 Apr 2023 07:14:02 GMT

Do you know the trigger voltage of the Godox flash? If it's an older model it could have a trigger voltage of 250 volts or higher, which will "fry" circuitry in a DSLR, causing who-knows-what kind of damage. Modern flashes have trigger voltages of around six volts.

Re: 5d mark 4 melted a SD card

shadowsports — Thu, 06 Apr 2023 10:27:54 GMT

Greetings,

The amount of voltage and electricity that would cause a memory card to melt like that would be extremely dangerous for the camera and it's components. Cards get hot, but you were at the point of catastrophic failure. Black dot on an LCD is either impact or excessive heat. I would discard the godox flash and replace the battery I was using at the time. You really dodged a bullet here. My advice, I would send my camera to Canon for inspection. This is up to you..

Re: 5d mark 4 melted a SD card

Waddizzle — Thu, 06 Apr 2023 10:51:38 GMT

How cords, cables, and devices are connected to the camera simultaneously?

Re: 5d mark 4 melted a SD card

ebiggs1 — Thu, 06 Apr 2023 14:12:56 GMT

"My advice, I would send my camera to Canon for inspection. This is up to you.."

Good advice, I agree. I also suspect the flash.

Re: 5d mark 4 melted a SD card

Hsham — Fri, 07 Apr 2023 02:04:23 GMT

It was an older model yes, but it was a rental so i don't know exactly the trigger voltage.

I'll find out though.. Thank you