STK-LX1 9.1.0.213(C432)
Stark-L21A 9.1.0.213(C432E2R1P2) Firmware 9.0.0 r3 EMUI9.1.0 05015VTD
STK-LX1 9.1.0.312(C431)
Stark-L21BHNVX 9.1.0.312(C431E1R1P2) Firmware EMUI9.1.0 05016HCK
Huawei STK-LX1 Dead Boot Repair Without Lost IMEI And OEM File
The rate of successfully flashing is 35% because you need to unlock bootloader /// and this service (unlock bootloader) not working at this monent and no box supported from the date of the file posted