Supported Huawei Models:
E155, E156, E156C, E156G, E160, E160E, E160G, E161, E166, E169, E169G,
E170, E172, E176, E180, E182E, E196, E216, E219, E226, E230, E270, E271, E272,
E510, E612, E618, E620, E630, E630+, E660, E660A, E800, E870, E880, EG162,
EG162G, EG602, EG602G, and more...
note: if you leave any spaces it will give you the wrong code.
Download the calc from herehttp://www.mediafire.com/?idmeyknmnmo
its simple to use
just enter imei number and click calculate now.
then, to enter the number into your modem you can use this software:http://www.sagmaster.com/download/10SMTi/HUAWEI_MODEM_Code_Writer.rar
100% tried and tested by myself and many others