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Coolpad Cool 21 secret codes


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Coolpad Cool 21


OS: Android v11

CPU: MediaTek Helio G80
RAM: 6 GB
Display: 6.52 inches
Camera: 48 MP 8 MP 2 MP
Battery: 4500 mAh




Coolpad Cool 21 smartphone runs on Android v11 operating system. The phone is powered by MediaTek Helio G80 processor. It has 6 GB. Internal storage options which can be extended with the help of 128 GB. The smartphone has a IPS LCD providing. The smartphone is fueled with a 4500 mAh. The main camera of the smartphone consists of a 48 MP 8 MP 2 MP. The sensors include Accelerometer, Proximity. Connectivity features in the smartphone include Bluetooth, A-GPS and more. The Coolpad Cool 21 are available in various colors such as Earl Black, Secret Sea Blue, and Cocoa White. It measures 164.3 x 75.66 x 8.65 mm and weighs 199.6 grams.

Secret codes for Coolpad Cool 21

*#06#- IMEI (International Mobile Equipment Identity) number
*#*#3646633#*#* or *#*#54298#*#*- Engineering Mode (for smartphones based on MTK processor)
*#*#4636#*#*- Display information about Phone, Battery and Usage statistics
*#*#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#*#*- Rlz Debug UI. Access Google Partner setup
*#*#36245#*#*- Email debug information
*#*#8255#*#*- Google Talk Service Monitor in Android mobile phones will monitor Google Talk host address and port, your Google JID, your device ID, GTalk connection status, your connection history
*#*#64663#*#*- Access Hardware Test (Sensors, Bluetooth, Battery, Speakers)
*#*#7780#*#*- Reset mobile phone to factory settings.
*2767*3855#- Factory formatting
*#*#232338#*#*- Displays Wi-Fi Mac-address
*#*#34971539#*#* or *#34971539#- Display 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 display test Code
*#*#3264#*#*- To display RAM Number
*#*#1111#*#*- FTA Software version
*#*#2664#*#*- Touch-Screen test
*#*#0588#*#*- Proximity sensor test
*#*#8351#*#*- Enables voice dialing logging mode
*#*#232331#*#*- Show Bluetooth Test Mode
*#*#232337#*#- Check Bluetooth device 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 Coolpad Cool 21



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
GSM codes for 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#- Divert all calls is turned ON
#21#- Divert all calls is turned OFF
*#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#- 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
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
Barr 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
Codes for barring all outgoing international calls
**331*code#- Barr all outgoing international calls Activate
#331*code#- Barr all outgoing international calls Deactivate
*#331*code#- Check status of barr all outgoing international calls
All outgoing international calls barring except home country
**332*code#- Barr all outgoing international calls except home country is turned ON
#332*code#- Barr all outgoing international calls except home country is turned OFF
*#332*code#- Check status of barr all outgoing international calls except home country
Set barring of all outgoing calls
**333*code#- Barr all outgoing calls Activate
#333*code#- Barr all outgoing calls Deactivate
*#333#- Check status of barr all outgoing calls
Barr 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
Codes for barring all incoming calls
**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 Coolpad Cool 21



userKczicsMarch 14, 2024
I love the sleek design and sturdy build of this phone. The screen is vibrant and clear. Performance is smooth and responsive. The camera takes great photos. Battery life is impressive. Overall, a solid choice.
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