Huawei E5373 Unlock failed

[Ghofran.Salem]

I got in hand E5373 MIFI and I tried to unlock it but it gives me unlock failed
here is the log

Found modem : E5373s-155
Model : Huawei E5373
IMEI : 865103021893298
Serial NR. : X6QBY15204006180
Firmware : 21.298.01.01.397
Compile date / time : Dec 27 2014 13:41:33
Hardware ver. : CL2E5377SM02
Dashboard version : WEBUI_17.100.05.02.397
SIM Lock status : Locked (Card lock)
Wrong codes entered : 5 (unlock attempts left : 5)

================================================== =================

Unlocking, please wait ...

AT command error

Error code 37

unlock failed !

[Valdemaras]

Yes, this version is not supported for unlock sadly.