Conversion used an example IPEI in hex: 00 09 22 63 A1

 

1. delete first „0“ of hex IPEI:

           0 09 22 63 A1 hex

 

2. convert first 4 digits into dec and fill up the result with “0” to 5 digits length at left:

           0 09 2 hex => 146 dec => 00146 dec

 

3. from 1. convert last 5 digits into dec and fill up the result with “0” to 7 digits length at left:

           2 63 A1 hex => 156577 dec => 0156577 dec

 

4. put results of 2. and 3. together:

           00146 dec and 0156577 dec => 001460156577    That’s what you need for registration!

 

           Check: the number must have 12 digits length