Huawei E3372H unlock ok but again relocked?

[akskbn]

I am trying to unlock Airtel India Huawei E3372H 4G usb modem in the software unlock ok but device is not unlocked?

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DC - Unlocker 2 Client 1.00.1332

Detecting modem :

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

Found Applications port COM79

Found modem : E3372
Model : Huawei E3372h
IMEI : 866850021137196
Serial NR. : Y4QDU15902010123
Firmware : 21.200.07.01.284
Compile date / time : Jul 6 2015 14:38:20
Hardware ver. : CL2E3372HM
Dashboard version : UTPS23.015.02.10.284_MAC23.015.02.10.284_LNX23.015 .02.11.284
SIM Lock status : Locked (Card Lock)
Wrong codes entered : 10 (unlock attempts left : 0)

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DC - Unlocker 2 Client 1.00.1332

Detecting modem :

selection :
manufacturer - Huawei modems
model - Huawei E3372h

Selected Applications port COM79

Found modem : E3372
Model : Huawei E3372h
IMEI : 866850021137196
Serial NR. : Y4QDU15902010123
Firmware : 21.200.07.01.284
Compile date / time : Jul 6 2015 14:38:20
Hardware ver. : CL2E3372HM
Dashboard version : UTPS23.015.02.10.284_MAC23.015.02.10.284_LNX23.015 .02.11.284
SIM Lock status : Locked (Card Lock)
Wrong codes entered : 10 (unlock attempts left : 0)

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Unlocking, please wait ...

Modem successfully unlocked !

Credits left : 4

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DC - Unlocker 2 Client 1.00.1332

Detecting modem :

selection :
manufacturer - Huawei modems
model - Huawei E3372h

Selected Applications port COM79

Found modem : E3372
Model : Huawei E3372h
IMEI : 866850021137196
Serial NR. : Y4QDU15902010123
Firmware : 21.200.07.01.284
Compile date / time : Jul 6 2015 14:38:20
Hardware ver. : CL2E3372HM
Dashboard version : UTPS23.015.02.10.284_MAC23.015.02.10.284_LNX23.015 .02.11.284
SIM Lock status : Locked (Card Lock)
Wrong codes entered : 10 (unlock attempts left : 0)

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[Valdemaras]

Need to flash to 21.200.07.00.00 to complete unlock
Firmware in support area that is accessed only from Huawei HiSilicon flashing software.

[akskbn]

Need to flash to 21.200.07.00.00 to complete unlock
Firmware in support area that is accessed only from Huawei HiSilicon flashing software.

Done thank you.

Found Applications port COM79

Found modem : E3372
Model : Huawei E3372h
IMEI : 866850021137196
Serial NR. : Y4QDU15902010123
Firmware : 21.200.07.00.00
Compile date / time : Feb 4 2015 14:25:06
Hardware ver. : CL2E3372HM
Dashboard version : UTPS23.015.02.10.284_MAC23.015.02.10.284_LNX23.015 .02.11.284
SIM Lock status : unlocked
Wrong codes entered : 0 (unlock attempts left : 10)

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[Valdemaras]

Welcome, thank you for informing.