Card not read on startup

[0luke1]

Hello everyone, I'm using new SanDisk extreme pro 300mbs 64gig cards in my new x1d ii. I formatted them in camera.

Every time I wake up or turn on the camera, I get a "no card" error. I have to pull and reinstall the cards several times before I can get one or both recognized.

Any thoughts?

[BillW]

Assuming other cards work well in your camera, I would inspect and clean the contacts on the new SanDisk. If that does not work, I would return them as they may be fake.

[sog1927]

Assuming other cards work well in your camera, I would inspect and clean the contacts on the new SanDisk. If that does not work, I would return them as they may be fake.

That was my first thought as well, particularly if they were bought on-line from an Amazon merchant or from Ebay. I bought a couple of 128GB "SanDisk" cards from Amazon marketplace that turned out to be 4GB cards and less than half the speed of real cards - obvious counterfeits. I think SanDisk has a web page on how to spot counterfeits, but some of the new ones are very hard to detect from external inspection.

I had no issues returning them to Amazon for a full refund - they're aware of the problem.

[0luke1]

I bought them from B&H, unfortunately too long ago to return them (I didn't think it would take over two months to receive the camera). A much slower card from my M10 works just fine.

Anyone want a $300 set of worthless cards?

Good news, the camera is everything I hoped it would be (so far). I'm semi paralyzed and have the use of just one hand - ergonomically this camera whips my old Nikon and Sony gear and i can foresee selling my M10. Even with the 21mm, I can shoot just fine one-handed.

[BillW]

FWIW I use these the I bought from BH. They are only $39 but I do not need the speed I guess offered by the current cards out there. I would contact BH anyway or the manufacturer to see if anything be done.

[0luke1]

My extreme pro 64gb, 95mbs works fine.

[sog1927]

I bought them from B&H, unfortunately too long ago to return them (I didn't think it would take over two months to receive the camera). A much slower card from my M10 works just fine.

Anyone want a $300 set of worthless cards?

Good news, the camera is everything I hoped it would be (so far). I'm semi paralyzed and have the use of just one hand - ergonomically this camera whips my old Nikon and Sony gear and i can foresee selling my M10. Even with the 21mm, I can shoot just fine one-handed.

Have you tried reformatting them in your computer to see if the camera can at least recognize them afterwards? It might be worth a shot. I'd format them again in the camera before using them, if this works

[mar-ko]

A good way to test cards (and USB sticks) is the program "h2testw" (or "f3" for macOS). It fills the card completely with test data and verifys afterwards, so fake/fraud (and defect) cards can be detected.

[0luke1]

Have you tried reformatting them in your computer to see if the camera can at least recognize them afterwards? It might be worth a shot. I'd format them again in the camera before using them, if this works
[/quote]

BINGO! That worked. Thank you.

Never had to do that before.

[sog1927]

Have you tried reformatting them in your computer to see if the camera can at least recognize them afterwards? It might be worth a shot. I'd format them again in the camera before using them, if this works

BINGO! That worked. Thank you.

Never had to do that before.
[/quote]

Systems software is my day job