error in flashing huawei in new update

error in flashing huawei in new update

SigmaKey v.2.29.06
326555345 Sigma dongle 2.29, Initializing...OK
Pack 1: Activated
Pack 2: Activated
Pack 3: Activated
--------- 2018-10-18 11:20:07 ---------
SigmaKey 2.29.06 HiSi: Write firmware
(ADB) Writing flash...UPDATE.APP
Firmware: ALE-L21C185B520
This operation may brick the phone! Are you sure you want to proceed? [YES]
Phone model: ALE-L21
Version: :ALE-L21C432B594
Initializing.......................File I/O operation failed