HOw to solve ?

Action : Write Flash
Tips:
1.Remove Battery, Insert usb cable, Insert battery
2.power off Phone, Remove & Reinsert Battery , insert USB Cable
(In Case Some Phone Required to hold bootkey)
Waiting for Phone Usb...
Phone found [ USB Port:COM19 ]
Connecting...
Connection Done.
Read CPU Info...
CPU_SW: 0000
CPU_HW: CA01
CPU_ID: 0279[MT6797]
BV: 02
SecConf: 00000001
uploading boot image to RAM...
Handshake received from Phone.
Getting connection agent status:preloader
Send boot2 ...
Receive SYNC signal, Boot2 runs normally.
Getting RAM info ...
SRAM: type[0x2] base_address[0x200000] size[0x40000]
DRAM: type[0x1] base_address[0x40000000] size[0xC0000000]
Getting H/W info ...
CHIP : MT6797
CPU ID :
EMMC ID : 150100434A4E423452079D8441D764EB
EMMC Size: 64GB, usable capacity: 58,25GB
EMMC Name: eMMC_Samsung_CJNB4R

USB STATUS: high-speed

Loading scatter file ...
Read CFG done.
Checking the firmware matches the current BB ...
firmware is valid.
Erasing all partitions ......ok
Generating new partition table ...
Downloading partition table ...
ok
Image Format: General
Downloading preloader ......ok
Downloading recovery ......ok
Downloading md1img ...
Error: verification fails2 [0x2]
Error: failed to write image.

Action completed
Time taken : 00:00:15
Reconnect Battery/USB Cable
CS-Tool Ver 1.60


redmi note 4