Cannot use microSDXC 64GB

It is possible that you have an older card reader that's can't access or read the high capacity cards. You should be able to format it in the device you bought it for.

You need an SDXC host device, which will accept all previous families of SD memory cards. There are not a great many of these card readers but they are out there. All SD cards greater than 32GB will be SDXC.

I'm using Sandisk ImageMate All-in-One USB3.0, tjat already supprt microSDXC I

ImageMate All-in-One USB 3.0 Memory Card Reader by SanDisk

neo101 said:

Like the guys advised you
- if you have a camcorder or camera ONLY format the card with the item it is to be mainly used with cos it can cause corruption of videos and photos otherwise!

Actually I will use this card for Android Tablet with exFAT file system.
But my Tablet can't format microSD card too (feature was lock)

If the feature was disabled, is it possible the MicroSD card is locked? Check for a switch to protect it.

DeaconFrost said:

If the feature was disabled, is it possible the MicroSD card is locked? Check for a switch to protect it.

Thank you for reply.
I already checked, it doesn't lock.

Windows 7 could not format my San Disk Ultra 64GB Micro SDXC, but the San Disk SD Formatter Tool successfully did a good format. I found it here: Using SD Formatter Tool to restore full capacity on SDHC/SDXC cards