frp error why?

Action : Reset all to default
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:COM9 ]
Connecting...
Connection Done.
Read CPU Info...
CPU_SW: 0000
CPU_HW: CA00
CPU_ID: 0335[MT6735M_S01]
BV: 01
SecConf: 00000001
uploading boot image to RAM...
Handshake received from Phone.
Tips 1: In case some phone required to hold bootkey to enter download boot mode
Tips 2: SecureBoot phone found, According to the brand, Select the supported signed DA from boots list and try again.

Action completed
Time taken : 00:00:22
Reconnect Battery/USB Cable
CS-Tool Ver 1.60