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Vivo Y21T secret codes


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Vivo Y21T


OS: Android v11

CPU: Qualcomm Snapdragon 662
RAM: 6 GB
Display: 6.51 inches
Camera: 13 MP 2 MP 2 MP
Battery: 5000 mAh




Vivo Y21T smartphone runs on Android v11 operating system. The phone is powered by Qualcomm Snapdragon 662 processor. It has 6 GB. Internal storage options which can be extended with the help of 64 GB. The smartphone has a IPS LCD providing. The smartphone is fueled with a 5000 mAh. The main camera of the smartphone consists of a 13 MP 2 MP 2 MP. The sensors include Light sensor, Proximity sensor, Accelerometer, Gyroscope. Connectivity features in the smartphone include Bluetooth, A-GPS, Glonass and more. The Vivo Y21T are available in various colors such as Black, White, Blue. It measures 164.4 x 76.3 x 8.4 mm

Secret codes for Vivo Y21T

*#06#- IMEI (International Mobile Equipment Identity) number
*#*#3646633#*#* or *#*#54298#*#*- Engineering Mode (for smartphones based on MTK processor)
*#*#4636#*#*- Testing menu: Phone, Battery, Usage, WiFi Information.
*#*#225#*#*- Events in your calendar
*#*#426#*#*- 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
*#12580*369#- Software and hardware info
*#0283#- Audio Loopback Control
#7465625*638*#- Insert Network Lock Key Code
*#*#759#*#*- RLZ Debug UI (Device ID, Activation Status and few other things
*#*#36245#*#*- Email debug information
*#*#8255#*#*- Used to launch Google Talk Service Monitor
*#*#64663#*#*- Hardware Test (Version, Sensors, Sim, WLAN, Bluetooth, Battery, OTG, Radio, Speakers)
*#*#7780#*#*- Reset to factory settings.
*2767*3855#- It reinstalls the phones firmware
*#*#232338#*#*- Displays Wi-Fi Mac-address
*#*#34971539#*#* or *#34971539#- Display phone 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
*#*#273283*255*663282*#*#*- For a quick backup to all your media files
*#*#1575#*#*- Different GPS Test Code
*#*#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#*#*- Display Ram version
*#*#1111#*#*- FTA Software version
*#*#2664#*#*- Touch-Screen test
*#*#0588#*#*- Proximity sensor test
*#*#8351#*#*- Enables voice dialing logging mode
*#*#232331#*#*- Check Bluetooth
*#*#232337#*#- Displays bluetooth device 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
*#*#4986*2650468#*#*- PDA, Phone, Hardware, RF Call Date firmware info
*#*#8350#*#*- Disables voice dialing logging mode
*#*#2222#*#*- FTA Hardware verion


GSM codes for Vivo Y21T



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#- Activate call waiting
#43#- Deactivate call waiting
*#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
Call Forward All
*21*PhoneNumber#- 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"
**61*PhoneNumber#- Register and activate divert on no answer to PhoneNumber
##61#- Unregister divert on no answer
*61#- Activate divert on no answer calls
#61#- Deactivate divert on no answer calls
*#61#- Check status of divert on no answer
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
Diversion in case of "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
GSM codes for barring 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
Blocking all calls
**330*code#- Barr all calls Enable
#330*code#- Barr all calls Disable
*#330*code#- Check status of barr all calls
Block all outgoing international calls
**331*code#- Activation Barr all outgoing international calls
#331*code#- Deactivate Barr all outgoing international calls
*#331*code#- Check status of barr all outgoing international calls
Activate or deactivate barring all outgoing international calls except home country
**332*code#- Enable barr all outgoing international calls except home country
#332*code#- Disable Barr all outgoing international calls except home country
*#332*code#- Check status of barr all outgoing international calls except home country
Blocking all outgoing calls
**333*code#- Activation Barr all outgoing calls
#333*code#- Deactivate Barr all outgoing calls
*#333#- Check status of barr all outgoing calls
GSM codes for barring all incoming calls
**35*code#- Barr all incoming calls Enable
#35*code#- Barr all incoming calls Disable
*#35#- Check status of barr all incoming calls
Blocking all incoming calls when roaming
**351*code#- Barr all incoming calls when roaming Enable
#351*code#- Barr all incoming calls when roaming Disable
*#351#- Check status of barr all incoming calls when roaming
Block all incoming calls
**353*code#- Activate Blocking all incoming calls
#353*code#- Deactivate Blocking 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 Vivo Y21T



userBezCynaMarch 18, 2024
The Android v11 operating system is smooth and responsive, with a good selection of pre-installed apps. The design is sleek, the screen is vibrant, and the camera takes great photos. Battery life is impressive, and the device offers excellent value for the price. Overall, I am very satisfied with this smartphone.
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