Press V- and connect usb cable for fastboot
select hisilicon platform and go to service then click Remove Frp / Huawei ID
SigmaKey v.2.33.04 build 01
485935147 Sigma dongle 2.33, Initializing...OK
Pack 1: Activated
Pack 2: Activated
Pack 3: Activated
--------- 2019-08-21 16:21:49 ---------
SigmaKey 2.33.04b1 HiSi: Remove FRP / Huawei ID
Phone model: CAM-L21
Version: :CAM-L21C185B162
Removing FRP lock...Done
Restarting phone...OK
select hisilicon platform and go to service then click Remove Frp / Huawei ID
SigmaKey v.2.33.04 build 01
485935147 Sigma dongle 2.33, Initializing...OK
Pack 1: Activated
Pack 2: Activated
Pack 3: Activated
--------- 2019-08-21 16:21:49 ---------
SigmaKey 2.33.04b1 HiSi: Remove FRP / Huawei ID
Phone model: CAM-L21
Version: :CAM-L21C185B162
Removing FRP lock...Done
Restarting phone...OK