所用i.MX6型号为i.mx6DL，TF卡接口使用SDHC3，MFGTOOL版本为Mfgtools-Rel-4.1.0_130816_MX6DL_UPDATER
使用MFGTOOLS为i.MX6烧写TF卡时报错，无法烧写TF卡，以下为i.MX6串口打印信息输出:
请问这个问题如何解决。
UTP: received command '$ ls -l /dev/mmc* '
UTP: executing "ls -l /dev/mmc* "
brwxrwxrwx    1 root     disk      179,   0 Jan  1 00:03 /dev/mmcblk0
brwxrwxrwx    1 root     disk      179,   1 Jan  1 00:03 /dev/mmcblk0p1
brwxrwxrwx    1 root     disk      179,   2 Jan  1 00:03 /dev/mmcblk0p2
brwxrwxrwx    1 root     disk      179,   3 Jan  1 00:03 /dev/mmcblk0p3
brwxrwxrwx    1 root     disk      179,   4 Jan  1 00:03 /dev/mmcblk0p4
brwxrwxrwx    1 root     disk      179,   5 Jan  1 00:03 /dev/mmcblk0p5
brwxrwxrwx    1 root     disk      179,   6 Jan  1 00:03 /dev/mmcblk0p6
brwxrwxrwx    1 root     disk      179,   7 Jan  1 00:03 /dev/mmcblk0p7
brwxrwxrwx    1 root     disk      259,   0 Jan  1 00:03 /dev/mmcblk0p8
UTP: sending Success to kernel for command $ ls -l /dev/mmc* .
utp_poll: pass returned.
UTP: received command '$ dd if=/dev/zero of=/dev/foo7 bs=512 count=1 '
UTP: executing "dd if=/dev/zero of=/dev/foo7 bs=512 count=1 "
1+0 records in
1+0 records out
512 bytes (512B) copied, 0.000144 seconds, 3.4MB/s
UTP: sending Success to kernel for command $ dd if=/dev/zero of=/dev/foo7 bs=512 count=1 .
utp_poll: pass returned.
UTP: received command '$ dd if=/dev/zero of=/dev/mmcblk0 bs=512 seek=1536 count=16'
UTP: executing "dd if=/dev/zero of=/dev/mmcblk0 bs=512 seek=1536 count=16"
dd: can't open '/dev/mmcblk0': Read-only file system
UTP: sending Non-success to kernel for command $ dd if=/dev/zero of=/dev/mmcblk0 bs=512 seek=1536 count=16.
utp_poll: exit with status 256