Huawei E5577s unlock error 37

[unlock & flash]

pls help urgent

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DC - Unlocker 2 Client 1.00.1403

Detecting modem :

selection :
manufacturer - Huawei modems
model - Auto detect (recommended)

Found Applications port COM179

Found modem : E5577s-932
Model : Huawei AuthVer 4 modem (New)
IMEI : 866852027319596
Serial NR. : X8BDU17413000450
Firmware : 21.327.62.00.1367
Dashboard version : WEBUI_17.100.18.00.1367_MRE5
Web UI version : WEBUI_17.100.18.00.1367_MRE5
SIM Lock status : Locked (Card Lock)
Wrong codes entered : 1 (unlock attempts left : 9)

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Check account status

User : 0024D1578D
Credits left : 10
Support till : 8/23/2018

Activated features:
DC-Unlocker
Huawei CDMA modem unlocker
Software debugger

Unlock Huawei AuthVer 4 modem (New) (866852027319596) cost 1 cr

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Unlocking, please wait ...

AT command error

Error code 37

unlock failed !

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[Valdemaras]

This model version is not supported for unlock.

[unlock & flash]

Can I write supported version ? If can pls tell me which which firmware version I should write

[Valdemaras]

Can not flash it.