unable to read memory card

[ballos_kratos]

Hi, 

I'm unable to use the sloth 1 of my Sony Alpha 3. But able to use sloth 2 with the same memory card. 

It display an error: unable to read memory card.

Thanks in advance for your reply. 

[manu7III · Accepted solution]

Hi, are you sure the SD card you use is UHS-I or UHS-II?

As mentioned here :

• SLOT 1 (Memory card slot 1)

  Supports SD cards only (compatible with UHS-I and UHS-II)

• SLOT 2 (Memory card slot 2)

  Supports SD cards (compatible with UHS-I) and Memory Stick PRO Duo media

[ballos_kratos]

Oh, though they accept the same format. 

My card is an UHS-1, I think. 

It is an SD HC 1 integral Ultima pro. 

So should work ... 

Or not, I'll try other cards. Thank you

[manu7III]

OK. Did you try to format it in slot 2, then put it in slot 1 to check?

[ballos_kratos]

Don't work. But it is as you said. Mine is a Class C type not an UHS. 

Thanks for your time