huawei y5 2018 imei repair failed

SigmaKey v.2.32.01
33xxxxxxx Sigma dongle 2.32, Initializing...OK
Pack 1: Activated
Pack 2: Activated
Pack 3: Activated
--------- 2019-05-22 17:34:47 ---------
SigmaKey 2.32.01 MTK: Repair IMEI (Huawei DRA-###)
Removing firmware protection...Failed