Error code 37 Huawei E5577Cs-603

[gasak]

I bought credit to unclok Huawei E5577Cs-603 but it's not working, error code 37.

DC - Unlocker 2 Client 1.00.1431

Detecting modem :

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

Found Applications port COM4

Found modem : E5577Cs-603
Model : Huawei AuthVer 4 modem (New)
IMEI : 867705022607457
Serial NR. : 2XDFG16302014685
Firmware : 21.200.07.09.1151
Dashboard version : WEBUI_17.100.07.11.1151_MRE5
Web UI version : WEBUI_17.100.07.11.1151_MRE5
SIM Lock status : Locked (Card Lock)
Wrong codes entered : 0 (unlock attempts left : 10)

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Please define proper COM port, or select autodetect!

not found !

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Unlocking, please wait ...

AT command error

Error code 37

unlock failed !

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Please advice. Thank you.

[Valdemaras]

Your device firmware version is not supported for unlock.