Error code 37

[OLUWAROTIMI]

Please kindly me with this error. I am trying to unlock a HUAWEI E5573S-320
But I am getting this error on the way: Activated features:

Software debugger

Unlock Huawei AuthVer 4 modem (New) (860861039779685) cost 7 cr

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Unlocking, please wait ...

Waiting modem/phone to be ready ...
AT command error

Error code 37

unlock failed !

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[Valdemaras]

Where is device detection info?

[OLUWAROTIMI]

Here it is :
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DC - Unlocker 2 Client 1.00.1431

Detecting modem :

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

Found Applications port COM7

Found modem : E5573s-320
Model : Huawei AuthVer 4 modem (New)
IMEI : 860861039779685
Serial NR. : V5YDU16B23005531
Firmware : 21.315.01.00.429
Compile date / time : Jan 25 2016 14:18:44
Hardware ver. : CL1E5573SM01
Dashboard version : WEBUI_17.100.13.00.429_MRE5
Web UI version : WEBUI_17.100.13.00.429_MRE5
SIM Lock status : Locked (Card Lock)
Wrong codes entered : 0 (unlock attempts left : 10)

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[Valdemaras]

Sadly, devices with 2x.3xx. firmwares are not supported for unlock.