p20 lite imei repair failed

Chimera Mobile Phone Utility version: 21.14.1245 @ 2019-05-18
Printing phone history

Repair IMEI
5/18/2019
11:38:29
AM

Repair IMEI
5/18/2019
11:35:49
AM

Repairing IMEI(s)...
Factory reset notify window was accepted.
Searching for manufacture port...
Testing connection...
Checking IMEI(s)...
Authenticating...
This may take a while.
Be patient! Do NOT disconnect the phone!
The device sent an invalid challenge.
Retry 2/5
The device sent an invalid challenge.
Retry 3/5
The device sent an invalid challenge.
Retry 4/5
The device sent an invalid challenge.
Retry 5/5
The device sent an invalid challenge.
Authentication with the device failed.
Finished at local time: [05.18.19 14:06:32]
WorkID: 59984295