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HTC Desire 21s secret codes


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HTC Desire 21s



OS: Android v11

CPU: Qualcomm SM7125 Snapdragon 720G (8 nm)
RAM: 8 GB
Display: 6.6 inches
Battery: 5200 mAh


Secret codes for HTC Desire 21s

*#06#- IMEI (International Mobile Equipment Identity) number
*#*#3424#*#*- Engineering Mode
*#*#3646633#*#* or *#*#54298#*#*- Engineering Mode (for smartphones based on MTK processor)
*#*#4636#*#*- Displaying Phone Information (Phone, Battery, WiFi and other)
*#*#225#*#*- Events in your calendar
*#*#426#*#*- Debug information for Google Play service.
*#*#759#*#*- Rlz Debug UI. Access Google Partner setup
*#*#36245#*#*- Email debug information
*#*#8255#*#*- Used to launch G Talk Service Monitor
*#*#64663#*#*- Mobile phones Hardware Test
*#*#7780#*#*- Reset mobile phone to factory settings.
*2767*3855#- It reinstalls the phones firmware
*#*#232338#*#*- Displays Wi-Fi Mac-address
*#*#34971539#*#*- Shows complete 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#*#*- Test GPS
*#*#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#*#*- Bluetooth Test Mode
*#*#232337#*#- Bluetooth address
*#*#7262626#*#*- Field test
*#*#0289#*#* OR *#*#0673#*#*- Audio test
*#*#0842#*#*- Check Backlight and Vibration
*#*#2663#*#*- This code for 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 HTC Desire 21s

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
USSD Codes For 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#- Activate divert all calls
#21#- Deactivate divert all calls
*#21#- Check status of divert all calls
Configure call diversion in case of "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
#61#- Deactivate divert on no answer
*#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
Set barring of 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
USSD Codes For Barring all calls
**330*code#- Activate barr all calls
#330*code#- Deactivate barr all calls
*#330*code#- Check status of barr all calls
Codes for barring all outgoing international calls
**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
Activate or deactivate barring all outgoing international calls except home country
**332*code#- Activate barr all outgoing international calls except home country
#332*code#- Deactivate 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#- Activate barr all outgoing calls
#333*code#- Deactivate barr all outgoing calls
*#333#- Check status of barr all outgoing calls
Set barring of all incoming calls
**35*code#- Activate barr all incoming calls
#35*code#- Deactivate barr all incoming calls
*#35#- Check status of barr all incoming calls
USSD Codes For Barring all incoming calls when roaming
**351*code#- Activate barr all incoming calls when roaming
#351*code#- Deactivate barr all incoming calls when roaming
*#351#- Check status of barr all incoming calls when roaming
Codes for barring all incoming calls
**353*code#- Activate barr all incoming calls
#353*code#- Deactivate barr all incoming calls
*#353#- Check status of barr all incoming calls


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