How to connect your GPS bluetooth with phone

For GPS Model C843,C943,C942,C951
1. click "Open" button of "bluetooth" window and then open will be"close"
2. and then the first 3 buttons will be valid.
3. normally, please click the 3rd button"pair" enter pair window.
4. you will see some old conectted phone's name listed in the list.
5. you can delete them via click that DEL button. then click the first button to enter pair mode.
6. normally, you can get a PURONG bluetooth device name, and ask the password, input 8888 normally.