lenovo a6000 flashing failed

Operation : Flash
Checking for existing devices...Found
Port : Qualcomm HS-USB QDLoader 9008 (COM10)
Driver Info : Qualcomm Incorporated, qcusbser.sys, 2.1.2.2
Opening Port...OK
Init Handshake Sequence...OK
Hardware ID : E1507000 [8916] 00000000
OPK_DATA : 9CBA94693C2333A562BCF0E0E981C558748817D002F543B2A2 6AB1B4B3F1CF9E
Initializing Protocol...OK
Using Auto Loader Selection [1]
Preparing Firehose Loader...Done
Sending Loader [8916_014.ufl]...Done
Executing Loader...OK
Detecting Chip Type...OK
Hardware : 8916, eMMC, 16 GB
LU Count : 1 [0x01D5C000]
WARNING! High Speed Driver is not installed.
Please install driver from QcFire\Drivers folder using Device Manager.
Payload Info : In: 65536 [4096], Out: 16384, Sector Size: 512
Writing [NON-HLOS.bin] -> [modem] ...Done
Writing [sbl1.mbn] -> [sbl1] ...Done
Writing [sbl1.mbn] -> [sbl1bak] ...Done
Writing [emmc_appsboot.mbn] -> [aboot] ...Done
Writing [emmc_appsboot.mbn] -> [abootbak] ...Done
Writing [rpm.mbn] -> [rpm] ...Done
Writing [rpm.mbn] -> [rpmbak] ...Done
Writing [tz.mbn] -> [tz] ...Done
Writing [tz.mbn] -> [tzbak] ...Done
Writing [hyp.mbn] -> [hyp] ...Done
Writing [hyp.mbn] -> [hypbak] ...Done
Writing [splash.img] -> [splash] ...Done
Writing [S86518C1_Online_V011.img] -> [fsg] ...Done
Writing [sec.dat] -> [sec] ...Failed

pls help me... how to solve....