guide this link https://forum.unlocksever.com/threads/note-8-ginkgo-mi-account-removal-without-app-and-vpn.1050/
Searching for HS-USB QDLoader 9008... COM78
Connection : USB 2.0 High-Speed
USB Driver : [ZTE Corporation] zghsser
Connecting to device... OK
Handshaking... OK
Reading bootloader info... OK
SOC : [2330001208] [Snapdragon 665] [SDM665] [0x0010A0E1]
PK_HASH[0] :1BEBE3863A6781DB4B01086063007334
PK_HASH[1] E9E5CA14971C7C4F4358EC9D79CDA46
Writing flash programmer... OK
Connecting to flash programmer... OK
Configuring device... Auth!
Authenticating with server... FAIL
UNLOCKTOOL
Searching for HS-USB QDLoader 9008... COM78
Connection : USB 2.0 High-Speed
USB Driver : [ZTE Corporation] zghsser
Connecting to device... OK
Handshaking... OK
Reading bootloader info... OK
SOC : [2330001208] [Snapdragon 665] [SDM665] [0x0010A0E1]
PK_HASH[0] :1BEBE3863A6781DB4B01086063007334
PK_HASH[1] E9E5CA14971C7C4F4358EC9D79CDA46
Writing flash programmer... OK
Connecting to flash programmer... OK
Configuring device... Auth!
Authenticating with server... FAIL
UNLOCKTOOL