CDA code is also called hardware identification number. This CDA number is equivalent to the signature of the mobile phone and can identify the model and region of the mobile phone.

CDA code viewing method: In the standby state of unlocking the keyboard, enter right * Zuo Zuo * left * or * right * Zuo Zuo * left * to enter service information, and then select the software information customization column.

CDA 102425/3 is China. I won't answer you until I finish writing CDA.