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#

To Enable COM Port: *#110*01# -> Device -> Set UART -> PS Config -> UART1/115200

Codes to Change Screen Language:

* *#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