bla-l29 november and September rom downgrade done and ımeı repair problem

bootloader unlcok

SigmaKey 2.29.13b1 HiSi: Get Huawei bootloader password
Connecting....
Android Adapter PCUI (COM177), Provider: HUAWEI Technologies CO.,LTD, Driver ver.: 1.0.26.0, Date: 18.05.2016, USB\Vid_12D1&Subclass_13&Prot_22
Testing external RAM...4 Gb
Detecting flash...eMMC, Flash size: 64 Gb
Firmware: System 8.0.0.046(0AM2), Date: Wed May 9 05:20:46 CST 2018, Provider: hw/la
Boot Version: System 8.0.0.046(0AM2)_BOOT, FastBoot Version: Chipset-boston8.0.0.001(0333)_FASTBOOT
Recovery Version: (unknow), System Version: System 8.0.0.046(0AM2)
WiFi address: BC3D851369F3, Bluetooth address: BC3D85137497
Removing firmware protection....Done
Initializing....8954413317582670
Done

imei repair error

SigmaKey 2.29.13b1 HiSi: Repair IMEI
Connecting....
Android Adapter PCUI (COM177), Provider: HUAWEI Technologies CO.,LTD, Driver ver.: 1.0.26.0, Date: 18.05.2016, USB\Vid_12D1&Subclass_13&Prot_22
Testing external RAM...4 Gb
Detecting flash...eMMC, Flash size: 64 Gb
Firmware: System 8.0.0.046(0AM2), Date: Wed May 9 05:20:46 CST 2018, Provider: hw/la
Boot Version: System 8.0.0.046(0AM2)_BOOT, FastBoot Version: Chipset-boston8.0.0.001(0333)_FASTBOOT
Recovery Version: (unknow), System Version: System 8.0.0.046(0AM2)
WiFi address: BC3D851369F3, Bluetooth address: BC3D85137497
Removing firmware protection...Skipped
Software IMEI1: 86621********5865
Software IMEI2: 8662*********3107
Writing data....A11C9381BFE711E82433688FDA72E8EDE25C9051
Error FACADEAD