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Centric L4 secret codes


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Centric L4


OS: Android 8.1 Oreo

CPU: MediaTek MT6739
RAM: 2 GB, 667 MHz
Display: 5.45 inches
Camera: 12.98 MP (megapixels)
Battery: 3000 mAh, Li-Polymer




Centric L4 smartphone runs on Android 8.1 Oreo operating system. The phone is powered by MediaTek MT6739 processor. The smartphone has a IPS providing. The main camera of the smartphone consists of a 12.98 MP (megapixels). The sensors include Proximity, Light, Accelerometer, Fingerprint. Connectivity features in the smartphone include, GPS, A-GPS, Wi-Fi, 3.5 mm Jack and more. It measures 70.9 x 151.2 x 8.6 mm

Secret codes for Centric L4

*#06#- IMEI number is a unique identification that all mobile phones have
*#*#3646633#*#* or *#*#54298#*#*- Engineering Mode (for smartphones based on MTK processor)
*#*#4636#*#*- Display information about Phone, Battery and Usage statistics
*#*#225#*#*- This code show the number of festivities and events in your calendar
*#*#426#*#*- Information about the connection with Google Play Services
*#0011#- ServiceMode
*#0808#- Change USB Settings
*#9900#- Dump mode
*#9090#- Diagnostic configuration
*#0*#- General Test Mode
*#2663#- TSP / TSK firmware update
*#12580*369#- Software and hardware info
*#0283#- Audio Loopback Control
#7465625*638*#- Insert Network Lock Key Code
*#*#759#*#*- RLZ Debug UI (Device ID, Activation Status and few other things
*#*#36245#*#*- Debug email in apps/Email
*#*#8255#*#*- Google Talk Service Monitor in Android mobile phones will monitor Google Talk host address and port, your Google JID, your device ID, GTalk connection status, your connection history
*#*#64663#*#*- Hardware Test (Version, Sensors, Sim, WLAN, Bluetooth, Battery, OTG, Radio, Speakers)
*#*#7780#*#*- Reset to factory settings.
*2767*3855#- The firmware of the device is completely reinstalled
*#*#232338#*#*- Wi-Fi Mac Address Information
*#*#34971539#*#* or *#34971539#- Display full information about the camera.
*#*#1234#*#*- PDA and Phone firmware info
*#*#7594#*#*- Changing the power button behavior-Enables direct poweroff once the code enabled
*#*#1472365#*#*- For a quick GPS test
*#*#273283*255*663282*#*#*- For a quick backup to all your media files
*#*#1575#*#*- Different GPS Test Code
*#*#197328640#*#*- Enabling test mode for service activity
*#*#0283#*#*- Packet Loopback test
*#0228#- battery calibration


*#*#232339#*#* OR *#*#526#*#*- Wireless Lan Tests
*#*#0*#*#*- LCD display test Code
*#*#3264#*#*- Ram version
*#*#1111#*#*- FTA Software version
*#*#2664#*#*- Touch-Screen test
*#*#0588#*#*- Open the proximity test
*#*#8351#*#*- Enables voice dialing logging mode
*#*#232331#*#*- Show Bluetooth Test Mode
*#*#232337#*#- Displays bluetooth device address
*#*#7262626#*#*- Field test
*#*#0289#*#* OR *#*#0673#*#*- Audio test
*#*#0842#*#*- Backlight and Vibration test
*#*#2663#*#*- Touch-screen version
*#*#44336#*#*- Displays Build time and change list number
*#*#4986*2650468#*#*- PDA, Phone, Hardware, RF Call Date firmware info
*#*#8350#*#*- Disables voice dialing logging mode
*#*#2222#*#*- FTA Hardware verion


GSM codes for Centric L4



Change code
**03*old code*new code*new code#            
                  - Change code for call barring
**04*old PIN code*new PIN *new PIN#            
                  - Change SIM Card PIN code
**042*old PIN2 code*new PIN2*new PIN2#            
                  - Change SIM Card PIN2 code
**05*PUK code*new PUK*new PUK#            
                  - Change SIM Card PUK code
**052*PUK2 code*new PUK2*new PUK2#            
                  - Change SIM Card PUK2 code
Configure Call waiting
*43#- Activate call waiting
#43#- Deactivate call waiting
*#43#- Check status of call waiting
GSM codes for Call Forwarding
##002#- Disable All Call Forwarding
**004*PhoneNumber#- Set all configured call diversions to PhoneNumber
##004#- Unregister all configured call diversions
Call Forward All
*21*PhoneNumber#- Register and activate divert all calls to PhoneNumber
##21#- Unregister divert all calls
*21#- Enable divert all calls
#21#- Disable divert all calls
*#21#- Check status of divert all calls
Divert calls if your line is "no answer"
**61*PhoneNumber#- Register and activate divert on no answer to PhoneNumber
##61#- Unregister divert on no answer
*61#- Activate divert on no answer calls
#61#- Deactivate divert on no answer calls
*#61#- Check status of divert on no answer
Set call forwarding in case of "not available"
**62*PhoneNumber#- Register and activate divert on not reachable
##62#- Unregister divert on not reachable
*62#- Activate divert on not reachable
#62#- Deactivate divert on not reachable
*#62#- Check status of divert on not reachable
Call forwarding in case of "busy"
**67*PhoneNumber#- Register and activate divert on busy
##67#- Unregister divert on busy
*67#- Activate divert on busy
#67#- Deactivate divert on busy
*#67#- Check status of divert on busy all call types
*#67*11#- Check status of divert on busy voice calls
*#67*13#- Check status of divert on busy fax calls
*#67*25#- Check status of divert on busy data calls
Barr all outgoing calls
**33*code#- Activate barr all outgoing calls (for code see "Safety" above)
#33*code#- Deactivate barr all outgoing calls
*#33#- Check status of barr all outgoing calls
Blocking all calls
**330*code#- Enable Barr all calls on your phone
#330*code#- Disable Barr all calls on your phone
*#330*code#- Check status of barr all calls
Block all outgoing international calls
**331*code#- Barr all outgoing international calls Activate
#331*code#- Barr all outgoing international calls Deactivate
*#331*code#- Check status of barr all outgoing international calls
USSD Codes For Barring all outgoing international calls except home country
**332*code#- Enable barr all outgoing international calls except home country
#332*code#- Disable Barr all outgoing international calls except home country
*#332*code#- Check status of barr all outgoing international calls except home country
Blocking all outgoing calls
**333*code#- Barr all outgoing calls Activate
#333*code#- Barr all outgoing calls Deactivate
*#333#- Check status of barr all outgoing calls
Barr all incoming calls
**35*code#- Enable Barr all incoming calls on your phone
#35*code#- Disable Barr all incoming calls on your phone
*#35#- Check status of barr all incoming calls
Blocking all incoming calls when roaming
**351*code#- Enable Barr all incoming calls when roaming on your phone
#351*code#- Disable Barr all incoming calls when roaming on your phone
*#351#- Check status of barr all incoming calls when roaming
Block all incoming calls
**353*code#- Activate Blocking all incoming calls
#353*code#- Deactivate Blocking all incoming calls
*#353#- Check status of Blocking all incoming calls


Thomas Nilan
Smartphone Expert
Thomas Nilan is a mobile phone expert with in-depth knowledge of the Android and iOS operating systems, who understands the settings of various hidden features that allow you to expand the capabilities of your smartphone, as well as get information about what is going on inside the phone for future repairs. He is an authority in his field, which has allowed him to become a ghostwriter for several technology publications, and he enjoys writing small mobile applications for testing smartphones.



User questions and comments about secret codes Centric L4



userPibacaMarch 28, 2024
I am impressed with the design and build quality of this phone. The screen is vibrant and clear. The performance is smooth and responsive. The camera takes great pictures. The battery life is decent. The functionality is comprehensive. The software is user-friendly. The call quality is good. The cost is reasonable. Overall, I am satisfied with this device.
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