$ dmesg | tail

[ 6032.900794] mmc0: cannot verify signal voltage switch
[ 6033.117679] mmc0: cannot verify signal voltage switch
[ 6033.510015] mmc0: Skipping voltage switch
[ 6033.636511] mmc0: new high speed SDHC card at address e624
[ 6033.641068] mmcblk0: mmc0:e624 SD16G 14.8 GiB 
[ 6043.648785]  mmcblk0: unknown partition table
[ 6059.042448] Initializing Realtek PCIE storage driver...
[ 7026.218017] EXT4-fs (mmcblk0): VFS: Can't find ext4 filesystem
[ 7036.226508] EXT4-fs (mmcblk0): VFS: Can't find ext4 filesystem
[ 7046.235013] EXT4-fs (mmcblk0): VFS: Can't find ext4 filesystem

Then, tried to mount /dev/mmcblk0 with -t msdos:
[ 9234.683416] FAT-fs (mmcblk0): invalid media value (0x00)
[ 9234.683425] FAT-fs (mmcblk0): Can't find a valid FAT filesystem
[ 9417.752448] mmc0: card e624 removed

---
Same error with other SDCard:
[ 2990.335265] mmc0: new high speed SDHC card at address b368
[ 2990.335551] mmcblk0: mmc0:b368 SU04G 3.74 GiB (ro)
[ 2990.336474]  mmcblk0: unknown partition table