Can no longer offload footage from Silicon Power CFX310 card

Hi all, I have been using this card with a Blackmagic Pocket 6K for the past few years without any problems. The major change is I updated to the latest firmware. Have there been any issues reported?

Yesterday was my first shoot with the new firmware. I formatted the card in the camera. After filming some off-speed footage, I switched back to the normal frame rate and shot more content. Placed the camera down for a break, and when I resumed, noticed it said "no card". Power cycled the camera, but it still said "no card". With the camera still on, I ejected the card and reinserted. The card was recognized, and I checked all my footage was still on there. Phew! I continued to shoot some more clips at normal frame rate.

But when I tried to offload the footage, the card was not recognized on my Mac Studio. I thought it might be from recently updating the OS, but I tried my Macbook Air and still no dice. I also tried two different brand card readers, different cables, all which worked with other CFast cards. Finder just would not recognize this Silicon Power card.

I inserted the card back into the camera and turned on to check the footage. "No card". Left the camera on, ejected the card and reinserted. "No card". Started panicking a little. Ejected and reinserted a few more times with the camera on, and finally the card was recognized. As the card appeared to be showing declining health I decided I needed to at least capture the playback onto my Atomos Ninja V. I was able to do this as Prores HQ 1080p. Not ideal as I lose BRAW, but better than nothing. Is there a way to capture playback in 4K?

Any other suggestions on how to rescue the footage?

Is there possibly an issue with recording normal and off-speed footage with the new firmware?

Put back old firmware and see if it’s the causes of no cards.
Seems latest firmware give some headache for support (usb-c and cards).


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Thanks, I didn't know I could roll back the firmware. That doesn't help with retrieving the data from the existing card though - any ideas how to rescue that?

Thanks, I didn't know I could roll back the firmware. That doesn't help with retrieving the data from the existing card though - any ideas how to rescue that?

Yeah is the unique feature of Blackmagic Design, just install older firmware software and you can downgrade firmware.
Have you tried to read cards from camera or from card reader? Have you tried with different cable / card reader?


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Have you tried to read cards from camera or from card reader? Have you tried with different cable / card reader?

I can playback card from camera, but only if I insert it while the camera is turned on. Camera does not read the card when already inserted and then powered on.

Tried different cables and card readers. They all work with my other CFast cards.

Have you tried to read cards from camera or from card reader? Have you tried with different cable / card reader?

I can playback card from camera, but only if I insert it while the camera is turned on. Camera does not read the card when already inserted and then powered on.

Tried different cables and card readers. They all work with my other CFast cards.

seems a bad contact problems. unfortunately and not a firmware problems.
unfortunately