walton primo g4 problem

phone is ok but imei problem.

logo is

Action : Read Info
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:COM35 ]
Connecting…
Connection Done.
Read CPU Info…
CPU_ID: 6572
CPU_SW: 0000
CPU_HW: CA01
uploading boot image to RAM…
Handshake received from Phone.
Detected eMMC FlashType.
Warning: failed to init dram, loading default settings
Waiting for DRAM detection…
Error: 0xef [ReadInfo].

Action completed
Time taken : 00:00:23
Reconnect Battery/USB Cable
CS-Tool Ver 1.38
Created: 1/1/2008 3:24:54 AM

read flash faild logo

Action : Read 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:COM35 ]
Connecting…
Connection Done.
Read CPU Info…
CPU_ID: 6572
CPU_SW: 0000
CPU_HW: CA01
uploading boot image to RAM…
Handshake received from Phone.
Detected eMMC FlashType.
Warning: failed to init dram, loading default settings
Waiting for DRAM detection…
Error: 0xef [ReadInfo].

Reading Project Property …

Action completed
Time taken : 00:00:56
Reconnect Battery/USB Cable
CS-Tool Ver 1.38

write imei faild logo

Action : Repair IMEI
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:COM35 ]
Connecting…
Connection Done.
Read CPU Info…
CPU_ID: 6572
CPU_SW: 0000
CPU_HW: CA01
uploading boot image to RAM…
Handshake received from Phone.
Detected eMMC FlashType.
Warning: failed to init dram, loading default settings
Waiting for DRAM detection…
Done. Size=0x0000000020000000
uploading boot image to RAM…
Handshake Received from Phone.
eMMC cid: 1501004E35575A4D42
CHIP : MT65720000
CPU ID :
EMMC ID : 1501004E35575A4D42
EMMC Size: 4GB, usable capacity: 3.64GB
EMMC Name: eMMC_Samsung_KMN5W000ZM_B207
Read Hardware Information is done.

Checking imei …

Error: unknow PartTbl.
Error: failed to read PartTbl.
Error: Rebuild IMEI [0x4B]

Action completed
Time taken : 00:00:26
Reconnect Battery/USB Cable
CS-Tool Ver 1.38

help me cs tool