The following Mobile Phones codes works with Maximus, Symphony, Bluetooth, Birds, Alcatel, Sigmatel, Carboonn, GFive & various China mobile Phones such as Nokla, symphonies, sprint, onida, and more such China Mobile phones. –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 All Chinese mobile phone Secret Codes: *#66*# Set Factory Mode CONFIRMED *#8375# Show Software Version CONFIRMED *#1234# A2DP ACP Mode CONFIRMED *#1234# A2DP INT Mode CONFIRMED *#0000# Send : Set Default Language CONFIRMED *#0007# Send : Set Language to Russian CONFIRMED *#0033# Send : Set Language to French CONFIRMED *#0034# Send : Set Language to Spanish CONFIRMED *#0039# Send : Set Language to Italian CONFIRMED *#0044# Send : Set Language to English CONFIRMED *#0049# Send : Set Language to German CONFIRMED *#0066# Send : Set Language to Thai CONFIRMED *#0084# Send : Set Language to Vietnamese CONFIRMED *#0966# Send : Set Language to Arabic CONFIRMED *#800# make Etel E10 model displaying message BT power on. But on display it dont resemble the blutooth power on icon.(actually t makes BT stuck, but after restarting t becomes normal y me>) More codes to reset chinese mobile phone *#77218114# *#881188# *#94267357# *#9426*357# *#19912006# *#118811# *#3646633# also found these Service codes Konka: C926 software version: *320# Send C926 set default language: *#0000# Send C926 set English language: *#0044# Send Service codes GStar: GM208 (Chinese Nokea 6230 ) engineering menu: *#66*# Set language to English: *#0044# Set language to Russian: *#0007# ZTE Mobile1- *938*737381# 2- PHONE WILL DIPLAYED DONE 3- POWER OFF YOUR PHONE AND POWER ON AGAIN alcatel ” type=”#_x0000_t75″>E205 unlocking phone code,only press***847# without simcard E900 software version: *#5002*8376263# E900 full reset: *2767*3855# Service codes Spice: S404 enable COM port: *#42253646633# -> Device -> Set UART -> PS -> UART1/115200 S410 engineer mode: *#3646633# S900 software version: *#8375# S900 serial no: *#33778# Service codes Philips: S200 enable COM port: *#3338913# -> Device -> Set UART -> PS -> UART1/115200 Service 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# 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 VK-Mobile **x, 5xx: software version: *#79# software version: *#837# service menu: *#85*364# (hold #) 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#*# KG300 NVRAM format: 2945#*# -> menu 15 Service codes Sony-Ericsson: J100 software version: #82# Service codes Fly: M100 software version: ####0000# 2040(i) reset defaults: *#987*99# Send MX200 reset defaults: *#987*99# Send MX200 software version: *#900# Send SL300m reset defaults: *#987*99# Send SL300m software version: *#900# Send SL500m reset defaults: *#987*99# Send SL500m software version: *#900# Send MP500 reset defaults: *#987*99# Send MP500 software version: *#900# Send Set language to English: *#0044# Set language to Russian: *#0007# Service codes Konka: C926 software version: *320# Send C926 set default language: *#0000# Send C926 set English language: *#0044# Send Service codes GStar: GM208 (Chinese Nokea 6230+) engineering menu: *#66*# Set language to English: *#0044# Set language to Russian: *#0007# Service codes Motofone-F3: Motofone F3 software version: **9999* Send ***300* Set SIM Pin ***310* / ***311* SIM Pin ON | OFF ***000* Reset Factory settings ***644* Set Voicemail number ***260* / ***261* Auto keypad lock ON | OFF ***510* / ***511* Voice Prompts ON | OFF ***160* / ***161* Restricted Calling (Phonebook only) ON | OFF ***200608* Send: software version ***200606* Send: software version ***200806* Send: flex version ***250* / ***251* Keypad tones ON | OFF ***470* Select time format ***500* /***501* Prepaid Balance Display ON | OFF ***520* Change language Service codes Motorola: C113, C114, C115, C115i, C116, C117, C118 software version: #02#* C138, C139, C140 software version: #02#* C155, C156, C157 software version: #02#* C257, C261 software version: #02#* V171, V172, V173 software version: #02#* V175, V176, V176 software version: #02#* C168, W220 software version: *#**837# W208, W375 software version: #02#* and “yes”” I-mobile Inno30, 55, 89, 90, 99, 100, A10, A20, P10, Vk200 - Set full factory *741*737381# - Set full factory *741*7373868# - Set full factory *741*2878# - Set Engineer Mode *888*888# - Check software version *888*837# I-mobile 100 ,200 , 313 - Check software version #*888# I-mobile 309, 310 - Check software version *0*4636# - Test Mode *0*6268# I-mobile 311 - Check software version #*878# I-mobile 511 - Check software version *1222*1# I-mobile 301, 302,308, 508, 601, 602, 603, 604, 606, 611, 901, 902 - Check software version *#159# - Set Factory Mode *#32787# - Set Engineer Mode *#3646633# I-mobile 503, 506, 605, 600, 607, 608 - Set Engineer Mode ***503# - Set Factory Mode ***504# - Set Auto Test ***505# I-mobile 509, 612 - Set Factory Mode *#66*# I-mobile 504, 505, 803 - Check software version *68*48# - Set full factory *789# - Test Mode *#789# I-mobile 305, 306, 315, 510, 609, 609i,516 - Check software version *#8375# - Set Factory Mode 878 I-mobile 610 - Check software version *#22# I-mobile J101, J102 - Test Mode *23638777*783781# I-mobile 502, 502i, 505, k9, 802 - Check software version *201206*4636#