Hidden Secret Service Codes for Chinese Mobile Phones

[CHADZKIEH_28]

Enter into Engineering Mode: *#110*01#

Enter into 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
You can also give a try to following codes

*#002# - Full Factory Reset

*#87# or *#88# - Phone Test

*#06# - Shows IMEI of Mobile Phone

*#8375# or *#8376# - Software/Hardware Info

*#3641# - Engineer Mode (If you change hidden settings, do it wise)

Original links:http://www.askvg.com/list-of-some-hidden-secret-service-codes-for-chinese-mobile-phones/

*#3696# - Firmware USB Update Mode (Don't install wrong firmware