qmobile A910 flash fail

[dost56]

>>Current Task:
Write Factory Files
>>BasicInfo :
>>Brand : QMobile
>>ProdName : A910
>>ProdModel : QMobile A910
>>Device : A910
>>AndroidVer: 4.2.2
>>MTK CPU : MT6582
>>MTK PRJ : ALPS.JB5.MP.V1.6
>>Display ID: ALPS.JB5.MP.V1.6
>>Board ID : s8513a
>>Build Date: Tue Apr 1 18:53:41 CST 2014
>>Custom Build Ver: QMobileA910_MP_14_12
>>Internal Build Ver: S8513B_MP_PK_QMB_14_17
>>
>>
>>Operation:
1. Power off the phone.
2. Please insert USB cable within 40 seconds.
>>
>>MediaTek PreLoader USB VCOM Port (COM48)
>>
>>Connecting...
>>CPU TYPE:MT6582
>>Hardware version:CA01
>>Software version:0001
>>SecCfgVal :0x00000000
>>BromVersion :0xFF
>>BLVersion :0x01
>>Boot downloading complete!
>>EMMC_ID:0x90014A4834473164048600A3CD5441A5
>>EMMC_PRODUCT_NAME: 0x483447316404
>>EMMC_BOOT1_SIZE: 0x00200000
>>EMMC_BOOT2_SIZE: 0x00200000
>>EMMC_PRMB_SIZE: 0x00200000
>>EMMC_GP1_SIZE: 0x00000000
>>EMMC_GP2_SIZE: 0x00000000
>>EMMC_GP3_SIZE: 0x00000000
>>EMMC_GP4_SIZE: 0x00000000
>>EMMC_USER_SIZE: 0x0E7000000(3.61 G)
>>
>>INT RAM: 128KB SDRAM EXT RAM: 1GB DRAM
>>Find partition success.
>>Orignal preloader backup path:C:\Users\kmh\Downloads\Compressed\InfernoTool_MTK_Volcano_V1.2.4_20170317\MTK_Vol\backup\preloader_s8513a_20170324_100214.bin
>preloader_s8513a.bin write success.
>MBR write success.
>EBR1 write success.
>>Writing lk.bin .
>>Writing failed
>>Write factory file failed!