[Kindle Fire HDX 7" & 8.9" General] tuanshungf:
My MiFlash log:

[0000124C]CreateManagedObject(1392): Unspecified error(0x80131604)

[0000124C]GetFactoryObject(1436): Unspecified error(0x80131604)

[0000124C]CreateManagedObject(1392): Unspecified error(0x80131604)

[0000124C]GetFactoryObject(1436): Unspecified error(0x80131604)

[0000124C]GetFactoryObject(1457): The specified service does not exist.(0x800704db)

[0000124C]GetSearchPath(1512): The specified service does not exist.(0x800704db)

[0000124C]StartFlash(13): The parameter is incorrect.(0x80070057)

[0000118C]CEmergencyFlasher::IsQPSTServer(655): Not implemented(0x80004001)

[0000118C]COM10	0.05	Load programmer "C:\Users\Raymond\Desktop\fw\prog_emmc_firehose_8974.mbn"

[0000118C]DownloadFlashProgrammerDMSS(625): An attempt was made to load a program with an incorrect format.(0x8007000b)

[0000118C]DownloadFlashProgrammer(930): An attempt was made to load a program with an incorrect format.(0x8007000b)

[0000118C]COM10	0.05	Open programmer "C:\Users\Raymond\Desktop\fw\prog_emmc_firehose_8974.mbn"

[0000118C]COM10	0.05	Open serial port "\\.\COM10"

[0000118C]COM10	0.05	Receiving hello packet

[0000118C]COM10	0.05	Send hello response

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 00000000, length 80

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x000050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x001050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x002050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x003050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x004050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x005050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x006050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x007050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x008050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x009050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x00a050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x00b050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x00c050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x00d050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x00e050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x00f050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x010050, length 4096

[0000118C]COM10	0.05	ReadDataPacket id 13, offset 0x011050, length 2136

[0000118C]COM10	0.05	EndTransferPacket id 13, status 0

[0000118C]COM10	0.05	Send done packet

[0000118C]COM10	0.06	Open serial port "\\.\COM10"

[0000118C]COM10	15.09	Send nop command

[0000118C]COM10	15.09	Send configure command

[0000118C]CSerialDevice::CreateInstance(1236): Catastrophic failure(0x8000ffff)

[0000118C]CSoftwareDownload:: DownloadBySettings(2982): Catastrophic failure(0x8000ffff)

[0000118C]CEmergencyFlasher:: DoWork(632): Catastrophic failure(0x8000ffff)

[0000118C]GetFactoryObject(1457): The specified service does not exist.(0x800704db)

[0000118C]SaveFlashResult(1478): The specified service does not exist.(0x800704db)

Here is mine screenshot