LIST OF SECRET CODE DIAL PAD OPPO
1. * # 801 # (Engineer Mode: Open)
2. * # 802 # (Use GPRS search: (TTFF) Time to First Fix)
3. * # 803 # (Wifi setting and test)
4. * # 804 # (Search & Test your mobile phone operator)
5. * # 805 # (Engineer mode: Bluetooth)
6. * # 806 # (Auto Aging) *** not sugges use ***
7. * # 807 # (Auto test all mobile function)
8. * # 808 # (Manual mobile function test)
9. * # 809 # (Mic echo test)
10. * # 811 # (OTA test toggle) *** not sugges use ***
11. * # 6776 # (Shutdown the phone)
12. * # 1234 # (show you Oppo firmware version)
13. * # * # 4636 # * # * (show you the phone information)
14. * # 888 # (show PCB num)
15. * # 06 # (show IMEI No.)
16. * # 36446337 # (Engineer mode main page)
17. * # 1234 # (show you Oppo firmware version)
18. * # 6776 # (Shutdown the phone)
19. * # 8778 # (Restore factory setting)
20. * # * # 9889 # demo
21. * # 391010 # R5
22. * # 3921234 # f1
23. * # 1234 # check the color os version
