Hi Yuri
we find out that there is a mistake in console log of USB debug port during downloading uboot and kernel files into the device using MFG-tools. The console log is as follow.
Starting the hotplug events dispatcher udevd
udevd (1912): /proc/1912/oom_adj is deprecated, please use /proc/1912/oom_score_adj instead.
Synthesizing initial hotplug events
g_file_storage gadget: high speed config #1
mmc1: new high speed MMC card at address 0001
mmcblk0: mmc1:0001 MMC08G 7.31 GiB
mmcblk0boot0: mmc1:0001 MMC08G partition 1 2.00 MiB
mmcblk0boot1: mmc1:0001 MMC08G partition 2 2.00 MiB
mmcblk0: p1
mmcblk0boot1: unknown partition table
mmcblk0boot0: unknown partition table
udevd-event[2962]: node_symlink: symlink(../../mmcblk0boot0, /dev/disk/by-path/platform-mmc1:0001.udev-tmp) failed: File exists
uuc 0.4 [built May 1 2012 02:47:36]
UTP: Waiting for device to appear
UTP: file/device node /dev/utp already exists
cpu_id is 0
UTP: received command '$ flash_eraseall /dev/mtd0'
UTP: executing "flash_eraseall /dev/mtd0"
Erasing 4 Kibyte @ 40000 -- 100 % complete.
UTP: sending Success to kernel for command $ flash_eraseall /dev/mtd0.
utp_poll: pass returned.
UTP: received command 'send'
UTP: sending Success to kernel for command send.
UTP: received command '$ dd if=$FILE of=/dev/mtd0 bs=512'
UTP: executing "dd if=$FILE of=/dev/mtd0 bs=512"
357+1 records in
357+1 records out
183096 bytes (178.8KB) copied, 6.157657 seconds, 29.0KB/s
UTP: sending Success to kernel for command $ dd if=$FILE of=/dev/mtd0 bs=512.
utp_poll: pass returned.
UTP: received command '$ flash_eraseall /dev/mtd1'
UTP: executing "flash_eraseall /dev/mtd1"
Erasing 4 Kibyte @ 67000 -- 22 % complet .
IS there any problem with the eMMC IC?
