If your Huawei Device is a mobile phone:
1.Switch on your Huawei Phone using another networks SIM card.
2.Your phone should ask for an unlock code(NCK Code).
3. Enter the unlock code we sent you.
To enter code in USB 3G Modem, just follow these instructions
1) Open Hyperterminal
2) You must set com port on modem
(Huawei Mobile Connect - 3G Modem)
3) Type following command :
AT^CARDLOCK=”<you unlock code>”
4) Validate by pressing Enter.
Or you can use this software who do the same job easier :
to download this software
If you have USB Model E583x Series, please use this software
For Huawei E122
1. Remove the SIM card and connect the USB Modem to the PC
2. Run http://www.unlockitnow.com/downloads/HUAWEI%20MODEM%20Code%20Writer.zip
3. click - Please Select Com Port
4. click detect and slect your modem from list then click accept
5. click Unlock Modem and enter your 8 digit unlock code
6. click ok
Click here to
download this software