Secret codes for Oppo A31 2020
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Oppo secret codes
*#06# - IMEI (International Mobile Equipment Identity) number*#6776# - Phone Software Information
*#99# - Screen Light Long Bright
*#808# - Manual Hardware Test
*#805# - Bluetooth Test Menu
*#809# - Enter engineering Echo Test Menu
*#803# - WiFi Test Menu
*#888# - Hardware Revision
*#8778# or*#*#8255#*#* - Factory Reset
*#36446337# - Engineer Menu
ANDROID Oppo secret codes for Oppo A31 2020
*#*#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#*#* - Check your events in calendar
*#*#426#*#* - Google Play service - Debug information
*#*#759#*#* - RLz Debug UI system hidden menu
*#*#36245#*#* - Show Email debug informations
*#*#8255#*#* - For Google Talk service monitoring
*#*#64663#*#* - Check Hardware (Version, Sensors, Battery, Radio, Speakers)
*#2886# - Factory Auto Testing
*#*#273282*255*663282*#*#* OR *#*#273283*255*663282*#*#* - Backup of 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#*#* - Customize the operation of the "End Call / Power" button on your phone.
*#*#34971539#*#* - This code is used to get information about phone camera.
*#*#97#*#* - Language and Keyboard settings in Oppo A31 2020
*#872564# - USB logging control
*#301279# - This code is Shows HSDPA/HSUPA Control Menu
*#9900# - System dump mode Oppo A31 2020
*#*#46*#*# - Reset Sim in Oppo A31 2020
*#*#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#*#* - Show GPS test mode
*#*#1575#*#* - For a more advanced GPS test
*#*#232331#*#* - Bluetooth test
*#*#232337#*# - Shows Bluetooth device address in Oppo A31 2020
GSM codes for Oppo A31 2020
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)#@ - Activate
#33*(enter password)#@ - Deactivate
*#33#@ - Check the condition
Barring of all calls on your phone
*330*(enter password)# - Activate
#330*(enter password)# - Deactivate
*#330# - Check the condition
How to block all outgoing international calls
*331*(enter password)# - Activate
#331*(enter password)# - Deactivate
*#331# - Check the condition
Restrict of all outgoing international calls when roaming
*332*(enter password)# - Activate
#332*(enter password)# - Deactivate
*#332# - Check the condition
Barring of all 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
Barring all incoming calls during roaming on your phone
*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.
 | 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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