huawei DRA-LX5 FAIL IMEI REPAIR

SigmaKey v.2.30.04
Sigma dongle 2.30, Initializing...OK
Pack 1: Activated
Pack 2: Activated
Pack 3: Activated
--------- 2019-05-03 08:45:47 ---------
SigmaKey 2.30.04 MTK: Repair IMEI (Huawei DRA-###)
Removing firmware protection...Failed
--------- 2019-05-03 08:48:53 ---------
SigmaKey 2.30.04 MTK: Repair IMEI (Huawei DRA-###)
Removing firmware protection...Failed
--------- 2019-05-03 08:49:57 ---------


ONLY SigmaKey_Software_Setup_V2.29.16

CAN REPAIR IMEI ? AND I AM STILL LOOKING FOR OLD VERSION BUT I COULD NOT FINF IT FOR DOWNLOAD AND TRY