Huawei P9 lite imei repair error

i want to face below error while repairing P9 lite imei

model VNS-L62

Searching for manufacture port...
Testing connection...
Checking IMEI(s)...
Authenticating...
This may take a while.
Be patient! Do NOT disconnect the phone!
Authentication with the device failed.
Finished at local time: [07.28.19 19:49:00]


WorkID: 67739376