lenovo k50a40 flash failed

lenovo k50a40 flash failed

bro i read full flash file lenovo k50a40
after i formatted phone
again i want write it when iam tryng to flash

Analysis of USB port,Please insert phone USB cable.
Connecting…
CPU TYPE:MT6752
Hardware version:CA01
Software version:0001
SecCfgVal :0x00000000
BromVersion :0xFF
BLVersion :0x01
Boot downloading complete!
EMMC_ID:0x150100523832314D420054F8D46632AB
EMMC_PRODUCT_NAME: SAMSUNG :0x523832314D42
EMMC_BOOT1_SIZE: 0x00400000
EMMC_BOOT2_SIZE: 0x00400000
EMMC_PRMB_SIZE: 0x00400000
EMMC_GP1_SIZE: 0x00000000
EMMC_GP2_SIZE: 0x00000000
EMMC_GP3_SIZE: 0x00000000
EMMC_GP4_SIZE: 0x00000000
EMMC_USER_SIZE: 0x3A3E00000(14.56 G)

here its stop