The new Sigma Alpha X-SIM

Freedom to use any GSM and 3G mobile phone operator

The default mode of the new Sigma Alpha X-SIM 3 will unlock most phones by default. However, if your phone is not unlocked by the default mode then you have to change the mode.   This is easy and anyone can do it. 

Step 1: Activate Pin Code on SIM Card
Active your pin code on your operator’s SIM Card. Eg. Pin code: 1234

Step 2: Insert Alpha X-SIM and operator’s SIM Card into phone.
Place Sigma Alpha X-SIM Card along with your operator’s SIM Card into your phone.  

Step 3:  Changing the Sigma unlocking mode
Turn on your phone.   The phone will ask you to enter your pin code for your operator’s SIM card.  Enter your PIN CODE followed by UNLOCK CODE MODE.  Eg. 12340002.

Please note your PIN CODE is 1234 and UNLOCK CODE MODE: 0002.  
Please find list below for all the other unlocking modes:

UNLOCK CODE MODES:
0000 = No read will be altered (SIGMA is basically deactivated in this mode)
0001 = The first read will be replaced (Most Nokia, Samsung, Motorola...)
0002 = The second read will be replaced (Few Nokia models, especially N Series)
0003 = The first two reads will be replaced
0004 = The third read will be replaced
8185 = For most sharp models (this is the default configuration)
8191 = TMSI mode (patch all imsi reads)
Let's take out two examples:
0001 (dec.) = 0000000000001 (binary) Means the first read will be replaced
8185 (dec.) = 1111111111001 (binary) Means all reads except the 2nd and 3rd will get replaced