STC E5172s-927 Unlock Help Need

Can Some One Help Me Out With How To Unlock This Modem ?

Code:

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Product Information
Model:
E5172s-927
SN:
P6R7S155XXXXXXX
IMEI:
866840023XXXXXX
Hardware version:
Ver.B
Firmware version:
V200R001C1147SP100

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