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Secret codes for ZTE U816

  Mobiles >> ZTE >> ZTE U816

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ZTE secret codes

*#06# - IMEI (International Mobile Equipment Identity) number
Engineering Mode
*#*#2486#*#*

Version.
Type *983*7469#

Battery Temperature.
Type *983*1688#

Keypad Test.
Type *983*5391#

Phone Reset / User Code Reset.
Type *983*5651#

Sim Lock Info.
Type *983*757#

Master Reset.
Type *983*22387#

Audio Test.
Type *983*2831#

Version Info.
Type *983*837#

ANDROID ZTE secret codes for ZTE U816

*#*#4636#*#* - Display information about Phone, Battery and Usage statistics. 4 menus will appear on the phone screen: (Phone information, Battery information, Battery history, Usage statistics)

*#*#225#*#* - This code check your events in calendar

*#*#426#*#* - Google Play services android.

*#*#759#*#* - RLz Debug UI system hidden menu.



*#*#36245#*#* - Debug email in apps/Email

*#*#8255#*#* - This code can be used to launch GTalk Service Monitor

*#*#64663#*#* - Check Hardware (Version, Sensors, Battery, Radio, Speakers)

*#2886# - Factory Auto Testing

*#*#273282*255*663282*#*#* OR *#*#273283*255*663282*#*#* - file copy screen (backup media files)

*#*#7780#*#* - Used for a factory data reset. It'll remove following things: (Downloaded applications, Google account, all data and settings)

*2767*3855# - This code is used for factory format.



*#*#7594#*#* - Alter the behavior of the "End Call / Power" button on your phone.

*#*#34971539#*#* - Display the phone's camera information.

*#*#97#*#* - Language and Keyboard settings in ZTE U816

*#872564# - USB logging control

*#301279# - Use this code to show HSDPA/HSUPA Control Menu

*#9900# - System dump mode ZTE U816

*#*#46*#*# - Reset Sim in ZTE U816

*#*#197328640#*#* - Enter service mode to run various tests and change settings




WLAN, GPS and Bluetooth Test Codes:

*#*#232339#*#* OR *#*#526#*#* OR *#*#528#*#* - WLAN test (Use "Menu" button to start various tests)

*#*#232338#*#* - To obtain the Wi-fi Mac Address of your device.

*#*#1472365#*#* - View GPS test mode

*#*#1575#*#* - For a more advanced GPS test

*#*#232331#*#* - Bluetooth test

*#*#232337#*# - Shows Bluetooth device address in ZTE U816

GSM codes for ZTE U816

Change PIN code - **04* and enter the old PIN code, and twice a new PIN code.
Change PIN2 code - **042* and enter the old PIN2 code, and twice the new PIN2 code.
Unlock SIM (PIN) - **05* and enter the PUK code and new PIN code twice
Unlock SIM (PIN2) - **052* and enter the PUK2 code and new PIN2 code twice

Call Forwarding (you have to order the service from the operator)

##002#	And press dial to cancel all active call diverts.
##004#	Cancel all conditional call forwarding
**004* phone number #	Activate all conditional call forwarding

Unconditional call forwarding (Call Forward All)

###21	Switch off and deactivate
#21#	Deactivate
**21*phone number#	Enable and Activate
*21#	Activate
*#21#	Check the condition

Diversion in case of "no answer"

###61	Switch off and deactivate
#61#	Deactivate
**61* phone number#	Enable and Activate
*61#	Activate
*#61#	Check the condition

Diversion in case of "not available"

### 62	Switch off and deactivate
# 62 #	Deactivate
** 62 *phone number#	Enable and Activate
* 62 #	Activate
* # 62 #	Check the condition

Diversion in case of "busy"

###67	Switch off and deactivate
#67#	Deactivate
**67*phone number#	Enable and Activate
*67#	Activate
*#67#	Check the condition

Call Barring (you have to order the service from the operator)
Change the password for all bans (default - 0000)
- ** 03 * 330 * old password * new password * new password #

Block outgoing calls
**33*(enter password)#@ - Activate
#33*(enter password)#@ - Deactivate
*#33#@ - Check the condition

Blocking of all calls
*330*(enter password)# - Activate
#330*(enter password)# - Deactivate
*#330# - Check the condition

All outgoing international calls barring
*331*(enter password)# - Activate
#331*(enter password)# - Deactivate
*#331# - Check the condition

How to turn off all outgoing international calls when roaming
*332*(enter password)# - Activate
#332*(enter password)# - Deactivate
*#332# - Check the condition

Block outgoing calls
*333*(enter password)# - Activate
#333*(enter password)# - Deactivate
*#333# - Check the condition

Block incoming calls
*353*(enter password)# - Activate
#353*(enter password)# - Deactivate
*#353# - Check the condition

Blocking all incoming calls when roaming
*351*(enter password)# - Activate
#351*(enter password)# - Deactivate
*#351# - Check the condition

Call waiting (you have to order the service from the operator)
*43# - Activate
#43# - Deactivate
*#43# - Check the condition

Transfer your phone number (Anti ANI)
#30#phone number - Block
*30#phone number - Allow
*#30# - Check the condition

Show phone number of the caller you (ANI)
#77# - Block
*77# - Allow
*#77# - Check the condition

Proceed with Caution: Use codes with care, as incorrect usage could affect device functionality.

If you're unsure about a code, do not use it. It's better to be safe than sorry.

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Tarik Tonkov Mobile technology specialist

Tarik Tonkov is a computer scientist and programmer turned tech journalist with a keen interest in the world of smartphones and tablets. He previously wrote for Android Life and was also a ghostwriter for several technology and automotive publications. He appreciates the reliability and beauty of smartphones, the symbiosis of characteristics and usability. In his free time, Tarik likes to travel by car and polish his programming skills to create small useful programs.

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