02-26-2019 04:58 AM
I'm attempting to use a 128 GB microSDXC UHS-1 U3 Samsung EVOplus SDXC card. It seems to work only if I keep it under 64GB. Is there any way to extend the range to use 128GB?
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03-03-2019 04:13 AM
I don't have a ThinkPad Yoga 12 myself, but it is a recent enough model that I think it should be capable of recognizing a 128GB Micro XDSC card without issues.
Have you tried formatting it in the ThinkPad Yoga 12 using the Windows command-line DiskPart (filename: DISKPART.EXE) program? Here's how to do that, step-by-step:
CMD.EXE) in Windows.
DISKPART.EXE), the command-line disk-partitioning tool. The DISKPART> prompt will appear.
LIST DISK" (without quotes) and press Enter. A list of currently-mounted disk drives will be displayed. The Micro SDXC card will show up with a number like 1, 2, 3, 4 and so forth.
SELECT DISK n" (without quotes), where
nis the number of the Micro SDXC Card and press Enter.
CLEAN ALL" (without quotes) and press Enter. DiskPart will now zero-out (write 0's) across the entire disk. It may take a few minutes for the operation to run against all 128GB on the Micro SDXC Card. When finished, you will have a completely blank Micro SDXC Card with no information on it.
CREATE PARTITION PRIMARY" (without quotes) and press Enter. DiskPart will now create an a single primary partition using all of the Micro SDXC Card's space.
FORMAT FS=NTFS LABEL="SAMSUNG" QUICK" (without quotes) and press Enter. DiskPart will now quick format the single primary partition as a disk volume with a name of SAMSUNG using NTFS. If you are going to be sharing the Micro SDXC Card with a Mac, you may want to use EXFAT instead of NTFS for the file system.
ASSIGN LETTER=x" (without quotes), where
xis the letter you wish for the disk volume to appear as under Windows and press Enter.
At this point, the Micro SDXC Card is now formated, and you can exit the DiskPart utility.
03-03-2019 05:36 AM
Thank you for your response. I found that my problem was not with the Yoga 12 but with the SD card. Although it was labelled to be a 128GB card it had only half that much. I did use Disc Management/diskpart to reduce the partition size on the card to the available good memory. I used H2testw (a free download from the Internet) to determine the real available memory.
03-04-2019 12:30 AM
It sounds like you have a damaged (or a counterfeit) card. I would suggest following up with Samsung (or the seller) to determine whether or not it is safe to use.