Admin Settings: *#6984125*#
Admin Settings 
Internals (sub menu): *#9072641*#
Developer Settings: *#0523#
Camera test mode:
Press *#36287# key string in the dial screen to enter camera test mode -
[1] Auto focus [On]
[2] ISP firmware write
[3] ISP firmware version check

[1] Press the "1" key to disable auto focus. In order to enable auto focus, press the "1" key again.

[2] Press the "2" key to write the ISP (Camera Module) firmware. “ISP firmware write [Please wait]” will be displayed during 2 minutes. Then "ISP firmware write [SUCCESS]” will be displayed when the firmware upload finished.

[3] Press the "3" key to display ISP firmware version.
Latest ISP firmware should be 0x1f4d8723 (found in F480XXHF7)

IMEI : *#06#

Software version : *#1234# 

FTA S/w version : *#1111# 

Hardware info : *#2222# 

F/W and H/W version : *#0206*8376263#

Test menu : *#0*# 

battery info : *#0228# 

Master Reset : *2767*3855# 

GPRS info : *#4777*8665# 

Bluetooth ID : *#232337# 

LCD Brightness : *#8999*523# 

Call List : *#2255#

External Displayl : *#8999*3825523#

Java Status Code : #*536961# 

This code has something to do with phone locking. : *#7465625#