Huawei DRA-LX5 imei repair problem.

software always give error on reading data i try with 3 phones.
i already past (HuaweiDRA.msf) to C:\Users\Gujjar\Documents\SigmaKey\addons\02845166 12......
but facing same problem.

SigmaKey 2.29.19b1 MTK: Repair IMEI (Huawei DRA-###)
Removing firmware protection.....OK
Baseband Processor:MT6739, HW Rev. A.00, SW Rev. 0.00
Testing external RAM...DRAM, 1 Gb
Detecting flash...eMMC, Flash size: 14.57 Gb
Phone model: HUAWEI DRA-LX5
Android 8.1.0
Firmware: "DRA-LX5-user 8.1.0 HUAWEIDRA-LX5 1.0.0.101(C316) release-keys"
Software IMEI: 866903041468784
Reading data...File I/O operation failed