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OPPO F21 Pro secret codes


 Specification OPPO F21 Pro 
 Root OPPO F21 Pro 
 Unlock OPPO F21 Pro 
 Firmware OPPO F21 Pro 
 Developer Mode OPPO F21 Pro 
 Bypass Lock Screen OPPO F21 Pro 
 OPPO F21 Pro Factory Reset 
 Bypass FRP OPPO F21 Pro 
 Screenshot OPPO F21 Pro 

OPPO F21 Pro


OS: Android v10

CPU: 2.2 GHz, Octa Core Processor
RAM: 8 GB
Display: 6.5 inches, 1080 x 2400 pixels
Battery: 4500 mAh, Li-Po Battery




OPPO F21 Pro smartphone runs on Android v10 operating system. The phone is powered by 2.2 GHz, Octa Core Processor processor. It has 8 GB Ram. Internal storage options which can be extended with the help of memory card upto 256 GB. The smartphone has a Non-Removable Battery providing. The smartphone is fueled with a 4500 mAh, Li-Po Battery. The sensors include Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope. Connectivity features in the smartphone include Bluetooth, Wi-Fi and more.

Secret codes for OPPO F21 Pro

*#06#- International Mobile Equipment Identity
*#*#3646633#*#* or *#*#54298#*#*- Engineering Mode (for smartphones based on MTK processor)
*#*#4636#*#*- This code can be used to get some interesting information about OPPO F21 Pro (Phone, Battery, WiFi and other)
*#*#225#*#*- Upcoming calendar events
*#*#426#*#*- This code show Google Play
*#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#*#*- Display a debug information about your email ID
*#*#8255#*#*- To launch Google Talk service monitor
*#*#64663#*#*- Access Hardware Test (Sensors, Bluetooth, Battery, Speakers)
*#*#7780#*#*- Return to factory setting for hard reset but remove applications only.
*2767*3855#- Factory formatting
*#*#232338#*#*- Shows Wi-Fi Mac-address
*#*#34971539#*#* or *#34971539#- 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#*#*- Another 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#*#*- To display RAM Number
*#*#1111#*#*- FTA Software version
*#*#2664#*#*- Touch-Screen test
*#*#0588#*#*- Test the proximity sensor
*#*#8351#*#*- Enables voice dialing logging mode
*#*#232331#*#*- Bluetooth test
*#*#232337#*#- Check Bluetooth device 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 OPPO F21 Pro



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
Call waiting
*43#- To turn Call Waiting On for all calls
#43#- To turn Call Waiting OFF for all calls
*#43#- Check status of call waiting
Call Forwarding
##002#- Disable All Call Forwarding
**004*PhoneNumber#- Set all configured call diversions to PhoneNumber
##004#- Unregister all configured call diversions
USSD 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#- To turn Divert On no answer calls
#61#- To turn Divert OFF for no answer calls
*#61#- Check status of divert on no answer
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
Divert calls if your line is "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
Blocking 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
Set barring of all calls
**330*code#- Turn On Barr all calls
#330*code#- Turn OFF Barr all calls
*#330*code#- Check status of barr all calls
All outgoing international calls barring
**331*code#- Activate barr all outgoing international calls
#331*code#- Deactivate Barr all outgoing international calls
*#331*code#- Check status of barr all outgoing international calls
All outgoing international calls barring 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
Set barring of all outgoing calls
**333*code#- Activate barr all outgoing calls
#333*code#- Deactivate Barr all outgoing calls
*#333#- Check status of barr all outgoing calls
Blocking all incoming calls
**35*code#- Turn On Barr all incoming calls
#35*code#- Turn OFF Barr all incoming calls
*#35#- Check status of barr all incoming calls
Set barring of all incoming calls when roaming
**351*code#- Turn On Barr all incoming calls when roaming
#351*code#- Turn OFF Barr all incoming calls when roaming
*#351#- Check status of barr all incoming calls when roaming
All incoming calls barring
**353*code#- To turn Block On for all incoming calls
#353*code#- To turn Block OFF for 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 OPPO F21 Pro



userAviK SarKarMay 25, 2023
Outgoing call ki number hide karne ka koi CODE hai kya..??
Reply        

userDud-HykebaMarch 19, 2024
The camera quality is impressive, capturing clear and detailed images. The battery life is decent with fast charging capabilities. The phone offers a wide range of features and functions.
Reply        



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