OPPO F21s Pro 4G secret codes

OS: Android v12

CPU: 2.4 GHz, Octa Core Processor

RAM: 8 GB

Display: 6.43 inches, 1080 x 2400 pixels, 90 Hz

Camera: Punch Hole 32 MP f/2.4

Battery: 4500 mAh, Li-Po Battery

OPPO F21s Pro 4G smartphone runs on Android v12 operating system. The phone is powered by 2.4 GHz, Octa Core Processor processor. It has 8 GB Ram. Internal storage options which can be extended with the help of memory card 128 GB. The smartphone has a Color AMOLED Screen (16.7M) providing, Screen-to-Body Ratio of 90.8%. The smartphone is fueled with a 4500 mAh, Li-Po Battery. The main camera of the smartphone consists of a Punch Hole 32 MP f/2.4. The sensors include Geomagnetic Sensor, Proximity Sensor, Optical Sensor, Accelerometer, Gravity Sensor, Gyroscope, Pedometer, Compass. Connectivity features in the smartphone include Bluetooth, Built-in GPS, A-GPS, BeiDou, GLONASS, Galileo, QZSS, Wi-Fi, 3.5 mm Jack and more. It measures 73.2 x 159.9 x 7.66 mm and weighs 182 g.

Secret codes for OPPO F21s Pro 4G

*#06#	- IMEI number is a unique serial number
##3646633## or ##54298##	- Engineering Mode (for smartphones based on MTK processor)
##4636##	- Testing menu only have Phone Information, Usage Statistics and Wi-Fi information.
##225##	- This code show the number of festivities and events in your calendar
##426##	- Information such as Event and part of 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
#12580369#	- Software and hardware info
*#0283#	- Audio Loopback Control
#7465625638#	- Insert Network Lock Key Code
##759##	- RLZ Debug UI (Device ID, Activation Status and few other things
##36245##	- Access Email debug info Email
##8255##	- Access GTalk Service Monitor
##64663##	- Test hardware (Version, Bluetooth, Battery, OTG, Speakers)
##7780##	- Reset to factory settings.
27673855#	- The firmware of the device is completely reinstalled
##232338##	- Show MAC address of Wi-Fi network
##34971539## or *#34971539#	- See camera information.
##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
##273283255663282##*	- For a quick backup to all your media files
##1575##	- GPS Control Menu
##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##	- Test the proximity sensor
##8351##	- Enables voice dialing logging mode
##232331##	- Bluetooth Test Mode
##232337#*#	- Bluetooth 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
##49862650468##*	- PDA, Phone, Hardware, RF Call Date firmware info
##8350##	- Disables voice dialing logging mode
##2222##	- FTA Hardware verion

GSM codes for OPPO F21s Pro 4G

Change code
*03old codenew codenew code#
- Change code for call barring
*04old PIN codenew PIN new PIN#
- Change SIM Card PIN code
*042old PIN2 codenew PIN2new PIN2#
- Change SIM Card PIN2 code
*05PUK codenew PUKnew PUK#
- Change SIM Card PUK code
*052PUK2 codenew PUK2new PUK2#
- Change SIM Card PUK2 code

GSM codes for Call waiting
*43#	- �all waiting Enable
#43#	- �all waiting Disable
*#43#	- Check status of call waiting

Configure Call Forwarding
##002#	- Disable All Call Forwarding
*004PhoneNumber#	- Set all configured call diversions to PhoneNumber
##004#	- Unregister all configured call diversions

Activate or deactivate Call Forward All
21PhoneNumber#	- 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"
*61PhoneNumber#	- Register and activate divert on no answer to PhoneNumber
##61#	- Unregister divert on no answer
*61#	- Divert on no answer calls Enable
#61#	- Divert on no answer calls Disable
*#61#	- Check status of divert on no answer

Set call forwarding in case of "not available"
*62PhoneNumber#	- 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

Set up call forwarding in case of "busy"
*67PhoneNumber#	- 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
#6711#	- Check status of divert on busy voice calls
#6713#	- Check status of divert on busy fax calls
#6725#	- Check status of divert on busy data calls

All outgoing calls barring
*33code#	- 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

Activate or deactivate barring all calls
*330code#	- Enable Barr all calls on your phone
#330*code#	- Disable Barr all calls on your phone
#330code#	- Check status of barr all calls

Block all outgoing international calls
*331code#	- Turn On Barr all outgoing international calls
#331*code#	- Turn OFF Barr all outgoing international calls
#331code#	- Check status of barr all outgoing international calls

USSD Codes For Barring all outgoing international calls except home country
*332code#	- Enable barr all outgoing international calls except home country
#332*code#	- Disable Barr all outgoing international calls except home country
#332code#	- Check status of barr all outgoing international calls except home country

Activate or deactivate barring all outgoing calls
*333code#	- Turn On Barr all outgoing calls
#333*code#	- Turn OFF Barr all outgoing calls
*#333#	- Check status of barr all outgoing calls

All incoming calls barring
*35code#	- 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

Activate or deactivate barring all incoming calls when roaming
*351code#	- 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
*353code#	- Blocking all incoming calls Enable
#353*code#	- Blocking all incoming calls Disable
*#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 F21s Pro 4G

	Myzjza-Hls	March 11, 2024
	The camera takes excellent photos and videos in various lighting conditions, with a wide range of shooting modes. The battery life is good with fast charging. Overall, a solid device.
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