Example: Get all.... china mobile secret codes CHINESE MODELS: default user code: 1122, 3344, 1234, 5678 Engineer mode: *#110*01# Factory mode: *#987# Enable COM port: *#110*01# -> Device -> Set UART -> PS Config -> UART1/115200 Restore factory settings: *#987*99# LCD contrast: *#369# software version: *#800# software version: *#900# set default language: *#0000# Send set English language: *#0044# Send set English language (new firmware): *#001# Send Service codes BenQ: software version: *#300# test mode: *#302*20040615# Service codes Pantech: software version: *01763*79837# service menu: *01763*476# reset defaults (phone/user code reset to default): *01763*737381# Service codes 3xx, 5xx: software version: *#79# software version: *#837# Service codes VK200, VK2000, VK2010, VK2020, VK4000: software version: *#79# service menu: *#9998*8336# (hold #) reset defaults (phone/user code reset to default): *#9998*7328# (hold #) Service codes LG: software version: 2945#*# Service cod...