huawei E5573-606 how to unlock? Airtel India 4g wifi wrouter

[akskbn]

model - Auto detect (recommended)

Found Applications port COM11

Found modem : E5573s-606
Model : Huawei E5573 (untested)
IMEI : 866079025430247
Serial NR. : R3TDU15C11013198
Firmware : 21.180.17.01.284
Dashboard version : WEBUI_17.100.08.03.284
SIM Lock status : Locked (Card Lock)
Wrong codes entered : 10 (unlock attempts left : 0)

For unlock, may require firmware change, check tutorial or contact support

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Which firmware should flash for this version?

[Vincentas]

Sorry, this version not supported.

[akskbn]

Please update this version next update

[sk_sanjai]

how to unlock Airtel India E5573s-606