Is Huawei Mate 10 Lite (RNE-L21 )supported ?

I tried but failed.
Welcome to Octoplus FRP Tool v.1.6.4.0
Platform: HUAWEI
Selected model: RNE-L21
Put the phone in FastBoot Mode:
1. Remove SD and SIM cards from the phone
2. Power phone OFF
3. Press and hold "Vol-" and insert USB cable
4. Wait until the phone enter in FastBoot Mode
Searching for a phone. Please wait...
Detected phone model: RNE-L21
Phone SN: FFY5T18116011829
Phone IMEI: 868598032505921
Phone IMEI2: 868598032541934
SW version: RNE-L21 8.0.0.338(C432)
Connecting to server..OK
Authorizing...OK
Resetting FRP lock..
Operation was failed!
Performed by 1.6.4.0 Software version.

Thanks for help