We listed the all the secret codes and security codes for samsung and the secret codes for lg in our previous posts. China phones are another set of cheap and popular phones that hits the market. Even though sold under several brands, they all are common in hardware and softwares. Here is a list of the confirmed security codes and secret codes for all the china mobiles

 List of all China Mobile Secret Codes

Engineering Mode: *#110*01#

factory Mode: *#987#

Restore Factory Settings: *#987*99#

Check Software Version: *#900# OR *#800#

Default User Codes: 1122, 3344, 1234, 5678

Change LCD Contrast: *#369#

#0000# + Send : Set Default Language

*#0007# + Send : Set Language to Russian

*#0033# + Send : Set Language to French

*#0034# + Send : Set Language to Spanish

*#0039# + Send : Set Language to Italian

*#0044# + Send : Set Language to English

*#0049# + Send : Set Language to German

*#0066# + Send : Set Language to Thai

*#0084# + Send : Set Language to Vietnamese

*#0966# + Send : Set Language to Arabic