Reset Service codes Konka Mobile
C926 To see software version: *320# Send
Short code of C926 set default language from othet language: *#0000# Send
C926 set English language: *#0044# Send
C926 software version: *320# Send
C926 set English language: *#0044# Send
C926 set default language: *#0000# Send

Service codes GStar:
GM208 (Chinese Nokea 6230+)

Engineering menu: *#66*#
Set language to English: *#0044#


ZTE Mobile:
1- *938*737381#
2- PHONE WILL DIPLAYED DONE
3- POWER OFF YOUR PHONE AND POWER ON AGAIN

Alcatel:

Model: 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 Cheek for software version: *#8375#
S900 Serial no: *#33778#
IMEI: *#06#

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
Go to home schreen and dial - 
1. *#110*01# - to Set for Engineer mode: 
2. *#987# - to Set for Factory mode. 
3. to Enable COM port: *#110*01# -> Device -> Set UART -> PS Config -> UART1/115200
4. *#987*99# - to Reset Restore factory settings.
5. *#369# - to LCD contrast.
6. *#800# - to cheek software version.
7. *#900# - to cheek software version.

Service codes BenQ:

Go to home schreen and dial - 
*#300# to cheek software version.
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#

Reset Service codes of VK-Mobile **x, 5xx:

Go to home screen and dial - 
software version: *#79#
software version: *#837#
service menu: *#85*364# (hold #)

Reset codes of VK200, VK2000, VK2010, VK2020, VK4000:

Go to home screen and dial - 
*#79# - for software version: 
*#9998*8336# (hold #) - for service menu: 
*#9998*7328# (hold #) - reset defaults (phone/user code reset to default): 

Service codes Konka:
Dial *320#  C926 software version. 
Dial *#0000#  C926 set default language. 
Dial *#0044#  C926 set English language. 

Service codes Motofone-F3:

Go to home screen and dial - 

    Send **9999* - Motofone F3 software version.
    ***500* /***501* for Prepaid Balance Display ON | OFF
    ***300* for 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
    ***520* for Change language


All China Mobile's Reset Code

Here are some Default user code for your better help: 1122, 3344, 1234, 5678

*#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
*#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 )

More necessary codes to reset chinese mobile phone you can try to reset your phone.
*#77218114#
*#881188#
*#94267357#
*#9426*357#
*#19912006#
*#118811#
*#3646633#

Some common questions:
1. What is reset / Password?
2. When your Reset code will not work or help?

    This Security code will not help if your phone isn't in compatibility with the phone model.
    This Security code will not help if you tried to enter wrong Security Code too much times; in this case try to wait 10 minutes before entering reset security code. 
    This Security code will not help if you try to unlock your phone from service provider (you need another code for that).