fastboot connection is not standard huawei vol down and insert cable, we need to pres vol up/pwr on and select fastboot
Code:
Platform: HUAWEI
Selected model: DRA-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: DRA-L21
Phone SN: BRE9K18522908546
Phone IMEI2: 869355030116949
Connecting to server..OK
Authorizing...OK
Resetting FRP lock..
If the device didn't reboot automatically, try to reconnect USB cable or re-boot it manually.
FRP lock is successfully reseted!
Performed by 1.3.8.0 Software version.