Secret codes for Samsung Galaxy A20
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Samsung secret codes
*#06# - IMEI (International Mobile Equipment Identity) number*#1234# - Check software version of phone
*#7353# - Run Test Menu
*#0*# - Advenced Test Menu
*#0011# - Check Network Connection details, Serving Cell Info
*#2683662# - Advenced Service Mode
*#0228# - To check Battery Status
*#0808# - Enable USB Storage Connection Mass Storage Mode
*#2663# - Advenced Firmware Version
*#74123465* - Camera software standard
*#1111# or *#9999# or *#0837# - Display Software version.
*#0808# - Change USB configuration
*#2222# - Hardware Version of your device.
*#9090# - This code initiates the diagnostic configuration and RAM dump menu
*#1234# - View SW Version PDA, CSC, MODEM, Firmware version
*#0*# - Open General Test Mode Samsung Galaxy A20.
*#2663# - TSP / TSK firmware update
*#12580*369# - Open information about Android software and hardware.
*#0283# - Audio Loopback Control
*#0228# or *#9998*288# or *#9998*0288# or *#8999*228# - Battery status ADC, RSSI reading
*#0011# - GSM status information Samsung Galaxy A20.
#7465625*638*# - Insert Network Lock Key Code
*#34971539# - Camera Firmware Menu will be displayed on the screen.
Other secret codes that may work on other firmware and android versions.!
*#0001# - Use this to the Show Serial Parameters of your handset.
*#9125# - Activates the smiley when charging.
*#0523# - LCD Contrast.
*#9998*246# - Program status.
*#9998*289# - Change Alarm Buzzer Frequency.
*#9998*324# - Debug Screens.
*#9998*364# - Watchdog
*#9998*377# - EEPROM Error Stack - Use side keys to select values.
*#9998*427# - Trace Watchdog.
*#9998*523# - Change LCD contrast.
*#9998*544# - Jig detect.
*#9998*636# - Memory status
*#9998*746# - SIM File Size
*#9998*778# - SIM Service Table
*#9998*785#- RTK (Run Time Kernel) errors - if ok then phone is reset
*#9998*786# - Run, Last UP, Last DOWN.
*#9998*837# - Software Version.
*#9998*9266# - Yann debug screen (Debug Screens).
*#9998*9999# - Software version
*#9125# - Smiley
*#8999*636# - Display Storage Capacity
*#8999*778# - Display SIM Card Information
*#8999*782# - Show Date And Alarm Clock
*#8999*786# - The Display During Warning
*#8999*837# - Samsung Hardware Version
*#0523# or *#8999*523# - Display Contrast
*#8999*638# - Show Network Information
*#8999*9266# - Display Received Channel Number And Received Intensity
*#8999*364# - Watchdog ON/OFF
*#8999*427# - WATCHDOG Signal Route Setup
*2767*3855# - Full Reset (Caution every stored data will be deleted.)
*2767*2878# - Custom Reset
*2767*927# - Wap Reset
*2767*5282# - Reset Millet's Java and other related
*2767*63342# - Data Reset (deletes photos, ring tones)
*#9998*4357# - Help Menu
*#9998*5282# - Java menu (GRPS / CSD settings for JAVA server)
*#9999#0# - Net monitor
*#8888# or *#9998*8888# - Hardware based version
*#9998*377# or *#9998*0377# - The error log
*#9998*778# or *#9998*0778# or *#0778# - SIM Service table
*#9998*782# - Shows the date and time when the alarm clock will ring
*#9998*5646# - Change the operator logo that shows up at the start of your
*#9998*76# - Manufacturing number
*#9998*968# - View the available sounds for alarm
*#9998*585# - Permanent memory phone
*#3243948# - Digital Audio Interference Off
*#32436837# - This will bring the Digital Audio Interference On option
*#2683662# - Service Mode
*#7353# - Test Menu
*#74123465* - Camera Firmware Standard
ANDROID Samsung secret codes for Samsung Galaxy A20
*#*#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#*#* - Calendar Storage
*#*#426#*#* - Check the connectivity between the FCM server and the mobile devices
*#*#759#*#* - RLz Debug UI system hidden menu
*#*#36245#*#* - Display Email debug informations
*#*#8255#*#* - To launch Google Talk service monitor
*#*#64663#*#* - Check Hardware (Version, Sensors, Battery, Radio, Speakers)
*#2886# - Factory Auto Testing
*#*#273282*255*663282*#*#* OR *#*#273283*255*663282*#*#* - Create backup to all media files
*#*#7780#*#* - Return to factory setting for hard reset but remove applications only. It'll remove following things: (Downloaded applications, Google account, all data and settings)
*2767*3855# - This code is used for factory format.
*#*#7594#*#* - Change the "End Call / Power" button action in your phone.
*#*#34971539#*#* - Shows completes information about the camera.
*#*#97#*#* - Language and Keyboard settings in Samsung Galaxy A20
*#872564# - USB logging control
*#301279# - This code is Shows HSDPA/HSUPA Control Menu
*#9900# - System dump mode Samsung Galaxy A20
*#*#46*#*# - Reset Sim in Samsung Galaxy A20
*#*#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#*#* - GPS test
*#*#1575#*#* - For a more advanced GPS test
*#*#232331#*#* - Bluetooth test
*#*#232337#*# - Shows Bluetooth device address in Samsung Galaxy A20
GSM codes for Samsung Galaxy A20
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# | Deactivate all 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)#@ - Enter to activate
#33*(enter password)#@ - Enter to deactivate
*#33#@ - Check
Barring of all calls
*330*(enter password)# - Enter to activate
#330*(enter password)# - Enter to deactivate
*#330# - Check
How to bar all outgoing international calls
*331*(enter password)# - Enter to activate
#331*(enter password)# - Enter to deactivate
*#331# - Check
Restrict of all outgoing international calls when roaming
*332*(enter password)# - Enter to activate
#332*(enter password)# - Enter to deactivate
*#332# - Check
How to turn off all outgoing calls
*333*(enter password)# - Enter to activate
#333*(enter password)# - Enter to deactivate
*#333# - Check
Block incoming calls
*353*(enter password)# - Enter to activate
#353*(enter password)# - Enter to deactivate
*#353# - Check
Barring all incoming calls when roaming
*351*(enter password)# - Enter to activate
#351*(enter password)# - Enter to deactivate
*#351# - Check
Call waiting (you have to order the service from the operator)
*43# - Enter to activate
#43# - Enter to deactivate
*#43# - Check
Transfer your phone number (Anti ANI)
#30#phone number - Block
*30#phone number - Allow
*#30# - Check
Show phone number of the caller you (ANI)
#77# - Block
*77# - Allow
*#77# - Check
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.
 | 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. | |
Comments, Questions and Answers about the secret codes of Samsung Galaxy A20
| Zandi | October 04, 2021 | |
| Is there a code that brings up all deleted messages? And how can I block it and get my phone to stop archiving them in my files? | ||
| Candice Remington | December 13, 2020 | |
| When I type *#*#4636#*#* into my dial screen nothing... and I have waited up to 20 mins....what's wrong or should I say ... what am I doing wrong.... | ||
| ZORO | December 10, 2020 | |
| زيادة حجم ذاكرة و رام | ||
| Hammad Hassan | November 18, 2020 | |
| call sensor how to work | ||
| Destiny | August 02, 2020 | |
| How use location on another A20 to give me that devices exact location | ||
| Split screen | January 29, 2020 | |
| How to split my screen | ||
| Amy | December 29, 2019 | |
| How do you get network unlock pin? | ||
| Trevor | December 01, 2019 | |
| Is there anything you can do to make the phone system reveal its unlock code? | ||
| Isasi | October 07, 2019 | |
| Como accedo al modo ingeniero, 1ue código debo marcar por favor ,gracias | ||
| حسام | September 29, 2019 | |
| كيف اعرف مده جميع المكالمات اللتي تمت على الهاتف من ساعه ما اشتغل فيها. | ||
Ask a question about Samsung Galaxy A20
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