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Samsung Galaxy J4 secret codes


 Specification Samsung Galaxy J4 
 Hard reset Samsung Galaxy J4 
 Bypass FRP Samsung Galaxy J4 
 Root Samsung Galaxy J4 
 Unlock Samsung Galaxy J4 
 Firmware Samsung Galaxy J4 
 Developer Mode Samsung Galaxy J4 
 Bypass Lock Screen Samsung Galaxy J4 
 Samsung Galaxy J4 Factory Reset 
 Screenshot Samsung Galaxy J4 

Samsung Galaxy J4


OS: Android 8.0 (Oreo)

CPU: Quad-core 1.4 GHz Cortex-A53
Display: 5.5" inc
Camera: 13 MP, Single




Samsung Galaxy J4 smartphone runs on Android 8.0 (Oreo) operating system. The phone is powered by Quad-core 1.4 GHz Cortex-A53 processor. It has 16 GB, 2 GB RAM. Internal storage options which can be extended with the help of microSD, up to 256 GB (dedicated slot). The smartphone has a Super AMOLED providing, Screen-to-Body Ratio of 71.2%. The smartphone is fueled with a 3000 mAh,  Removable Li-Ion. The main camera of the smartphone consists of a 13 MP, Single. The sensors include Accelerometer, proximity. Connectivity features in the smartphone include Bluetooth, A-GPS, GLONASS, BDS, Wi-Fi, 3.5 mm Jack and more. The Samsung Galaxy J4 are available in various colors such as Black, Gold, Orchid Gray. It measures 151.7 x 77.2 x 8.1 mm and weighs 175 g.

Secret codes for Samsung Galaxy J4

*#06#- IMEI number
*#*#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#*#*- Google Play services's debug informations
*#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#*#*- Access Google partner setup (RLZ debug Interface)
*#*#36245#*#*- This code show Email debug info
*#*#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#*#*- Check Hardware (Version, Sensors, Battery, Radio, Speakers)
*#*#7780#*#*- Return to factory setting for hard reset but remove applications only.
*2767*3855#- The firmware of the device is completely reinstalled
*#*#232338#*#*- View Wi-Fi Mac-address
*#*#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#*#*- Advanced GPS test
*#*#197328640#*#*- Enabling test mode for service activity
*#*#0283#*#*- Packet Loopback test
*#0228#- battery calibration


*#*#232339#*#* OR *#*#526#*#*- Wireless Lan Tests
*#*#0*#*#*- LCD Screen Test
*#*#3264#*#*- Ram version
*#*#1111#*#*- FTA Software version
*#*#2664#*#*- Touch-Screen test
*#*#0588#*#*- Proximity Sensor Test Mode
*#*#8351#*#*- Enables voice dialing logging mode
*#*#232331#*#*- Show Bluetooth Test Mode
*#*#232337#*#- Displays Bluetooth address
*#*#7262626#*#*- Field test
*#*#0289#*#* OR *#*#0673#*#*- Audio test
*#*#0842#*#*- Used for the test of Vibration and Backlight
*#*#2663#*#*- Touch Screen Version (Firmware 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 Samsung Galaxy J4



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
Activate or deactivate Call waiting
*43#- Ñall waiting Activate
#43#- Ñall waiting Deactivate
*#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
GSM codes for Call Forward All
*21*PhoneNumber#- Register and activate divert all calls to PhoneNumber
##21#- Unregister divert all calls
*21#- Turn On Divert all calls
#21#- Turn OFF Divert all calls
*#21#- Check status of divert all calls
Call forwarding in case of "no answer"
**61*PhoneNumber#- Register and activate divert on no answer to PhoneNumber
##61#- Unregister divert on no answer
*61#- Divert on no answer calls Activate
#61#- Divert on no answer calls Deactivate
*#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 diversion when "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
Barr 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
All outgoing international calls barring
**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#- Turn On Barr all outgoing international calls except home country
#332*code#- Turn OFF Barr all outgoing international calls except home country
*#332*code#- Check status of barr all outgoing international calls except home country
Barr 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
Barr 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
All incoming calls barring
**353*code#- Blocking all incoming calls Activate
#353*code#- Block all incoming calls Deactivate
*#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 Samsung Galaxy J4



userZlm-SiguvoMarch 11, 2024
The camera captures decent photos, but lacks some features. Battery life is average. The device has good functionality and performance. The screen is clear. Software is up to date. Calls are clear. Good value overall.
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