MT6260DA新贴回的板子flashtool烧录失败问题，求救！

各位大哥，近期小弟在对新贴片的MT6260DA的板子用FlashTool V5.1316烧录时不能成功，但用相同的工具和程序在之前已有程序的样机上烧录正确。BROM_DLL.log信息如下，（是否第一次烧录的板子在硬件或软件上需要做什么设置?）。请帮忙给点意见，等待中。谢谢！
09/01/13 09:15:05.086 BROM_DLL[1352][2632]: ERROR: DA_cmd::WriteData(): Retry(0): WriteFile(0/4096): Err(31), total=(0/4096). (da_cmd.cpp:176)
09/01/13 09:15:05.086 BROM_DLL[1352][2632]: ERROR: DA_cmd::CMD_WriteData(): Fail to Send Packet Frame ！ (da_cmd.cpp:9646)
09/01/13 09:15:15.085 BROM_DLL[1352][2632]: ERROR: DA_cmd::ReadData(): Retry(99): ReadFile(0/1): exceed timeout 10000 ms, retry 99 times fail！, total=(0/1). (da_cmd.cpp:323)
09/01/13 09:15:15.085 BROM_DLL[1352][2632]: ERROR: DA_cmd::CMD_WriteData(): ReadData(): fail, Err(99) (da_cmd.cpp:9661)
09/01/13 09:15:15.085 BROM_DLL[1352][2632]: ERROR: DA_cmd::CMD_WriteData(): wait for CONT_CHAR(0x69) timeout！ (da_cmd.cpp:9662)
09/01/13 09:15:15.085 BROM_DLL[1352][2632]: ERROR: DA_cmd::CMD_WriteData(): Retry(0): (31%): 278528 bytes sent, total_bytes=794664/2525896. (da_cmd.cpp:9663)
09/01/13 09:15:15.085 BROM_DLL[1352][2632]: ERROR: SV5_FlashTool_Download_Internal(): da_cmd.SV5_CMD_WriteData(): fail！ ret(4008). (flashtool_api_internal.cpp:2965)
09/01/13 09:15:15.085 BROM_DLL[1352][2632]: SV5_FlashTool_Download_Internal(): DL_HANDLE->rwlock: READ_UNLOCK. (rwlock.cpp:309)
09/01/13 09:15:15.085 BROM_DLL[1352][2632]: SV5_FlashTool_Download_Internal(): DL_HANDLE_LIST->rwlock: READ_UNLOCK. (rwlock.cpp:309)
09/01/13 09:15:15.086 BROM_DLL[1352][2632]: FlashTool_Disconnect(0x01734998): mutex: LOCK ... (mutex.cpp:116)
09/01/13 09:15:15.086 BROM_DLL[1352][2632]: DA_cmd::CMD_Finish(): send DA_FINISH_CMD(0xD9). (da_cmd.cpp:1094)
09/01/13 09:15:16.587 BROM_DLL[1352][2632]: WARNING: DA_cmd::WriteData(): Retry(1): WriteFile(0/1): timeout！, total=(0/1). (da_cmd.cpp:211)
09/01/13 09:15:18.088 BROM_DLL[1352][2632]: WARNING: DA_cmd::WriteData(): Retry(2): WriteFile(0/1): timeout！, total=(0/1). (da_cmd.cpp:211)
09/01/13 09:15:19.590 BROM_DLL[1352][2632]: WARNING: DA_cmd::WriteData(): Retry(3): WriteFile(0/1): timeout！, total=(0/1). (da_cmd.cpp:211)
09/01/13 09:15:21.091 BROM_DLL[1352][2632]: WARNING: DA_cmd::WriteData(): Retry(4): WriteFile(0/1): timeout！, total=(0/1). (da_cmd.cpp:211)
09/01/13 09:15:21.091 BROM_DLL[1352][2632]: ERROR: DA_cmd::WriteData(): Retry(4): WriteFile(0/1): exceed timeout 5000 ms, retry 4 times fail！, total=(0/1). (da_cmd.cpp:226)
09/01/13 09:15:21.091 BROM_DLL[1352][2632]: ERROR: FlashTool_Disconnect(0x01734998): da_cmd.CMD_Finish(): fail！ (flashtool_api.cpp:902)
09/01/13 09:15:21.091 BROM_DLL[1352][2632]: FlashTool_Disconnect(0x01734998): mutex: UNLOCK. (mutex.cpp:131)
09/01/13 09:15:21.091 BROM_DLL[1352][2632]: com_sentry::Close(): CancelIo() Return: 1！ (com_sentry.cpp:695)
09/01/13 09:15:21.092 BROM_DLL[1352][2632]: com_sentry::Close(): CloseHandle() Return: 1！ (com_sentry.cpp:703)
09/01/13 09:15:21.092 BROM_DLL[1352][2632]: com_sentry::Close(COM9): CloseHandle(8348) OK！ (com_sentry.cpp:710)
09/01/13 09:15:21.092 BROM_DLL[1352][2632]: FlashTool_Disconnect(): successfully delete p_ft_handle(0x0A668C48)={ FLASHTOOL_API_HANDLE(0x01734998) }. (flashtool_api.cpp:916)
09/01/13 09:15:21.092 BROM_DLL[1352][2632]: <<<------------------ FlashDownload(): End --------------------- (Mdebug.cpp:164)

自己顶一下，请兄弟们帮忙看一下，谢谢

MT6260DA需要外置充电IC吗

你用稳压源供电烧录下