87%失败，n次了都。
current pc version is: xp
current tool version is: v1.6.9
-----importUpgradeFile-----filenameF:\P78(G1M5).zip
[T 2][21:52:00]: load spl ...
[T 2][21:52:01]: load uboot ...
[T 2][21:52:02]: test command exec: crc 0x8f800000 537540 4d6be4c3
[T 2][21:52:05]: erase nand, you are in erase mode: nand rom_protect off;nand scrub 0;poweroff
[T 2][21:52:05]: sendCommandWithReply: nand rom_protect off;nand scrub 0;poweroff maxCount:0
[T 2][21:54:58]: load spl ...
[T 2][21:54:59]: load uboot ...
[T 2][21:55:00]: test command exec: crc 0x8f800000 537540 4d6be4c3
[T 2][21:55:04]: command exec:set_chgcur 0
[T 2][21:55:05]: command exec:video dev bl_off
[T 2][21:55:06]: command exec:video dev disable
[T 2][21:55:07]: command exec:sf probe 2
[T 2][21:55:08]: command exec:sf erase 1000
[T 2][21:55:11]: command exec:nand rom_protect off
[T 2][21:55:12]: command exec:nand erase 0
[T 2][21:55:20]: command exec:nand info
[T 2][21:55:24]: command exec:defenv
[T 2][21:55:25]: command exec:setenv bootargs ${bootargs} a9_clk_max=600000000
[T 2][21:55:26]: command exec:setenv recovery_command --usb_burning
[T 2][21:55:27]: command exec:save
[T 2][21:55:28]: load uimage ...
[T 2][21:55:29]: Transfer Complete! total size is 4034560 Bytes
[T 2][21:55:35]: test command exec: crc 0x82000000 4034560 883c1693
[T 2][21:55:35]: command exec: crc 0x82000000 4034560 883c1693
[T 2][21:55:35]: sendCommandWithReply: crc 0x82000000 4034560 883c1693 maxCount:30
[T 2][21:55:36]: command exec:bootm 0x82000000
[T 2][21:55:40]: boot uImage ...
[T 2][21:56:13]: find disk: H:
[T 2][21:56:14]: recoveyCommand: wipe_data prepareCommand:
[T 2][21:56:14]: send command : wipe_data ok!
[T 2][21:56:21]: wipe_data success(wipe_data):ok
[T 2][21:56:22]: recoveyCommand: wipe_cache prepareCommand:
[T 2][21:56:22]: send command : wipe_cache ok!
[T 2][21:56:27]: wipe_cache success(wipe_cache):ok
[T 2][21:56:28]: recoveyCommand: update:update.zip prepareCommand:
[T 2][21:56:44]: copy failed 2 times:H:\update.zip
[T 2][21:56:47]: failed ,current step is 21