how to know bluetooth security code of my device?

Answer 1

The manual should specify if there is a code already set for your bluetooth device. Most of the time, the default security codes used are either of the three:

0000,
1111,
1234

Now for example, if you transfer photo from your mobile phone via bluetooth to someone else's mobile phone, you will be asked a security code, basically this is not a default code, you can type in any code and the same code will be used by the receiver to make sure that no one else is hacking into your mobile.

Answer 2

Bluetooth Security Code

Answer 3

2