HUAWEI RNE-L21 Resetting FRP lock problem [Answered]

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: FFY5T18403042634
Phone IMEI: 869676031824102
Phone IMEI2: 869676031860114
SW version: RNE-L21 8.0.0.335(C185)
Connecting to server..OK
Authorizing...OK
Resetting FRP lock..
Operation was failed!
Performed by 1.5.4.0 Software version.