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Symphony Z20 secret codes


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Symphony Z20


OS: Android 9.0 (Pie)

CPU: Octa-core (4x1.65 GHz Cortex-A55 CPU and 4x1.2 GHz Cortex-A55)
RAM: 3 GB
Display: 6.26-inches, 96.7 cm2 (~81.3% screen-to-body ratio)
Camera: 13 MP 2 MP main camera
Battery: Non-removable Li-Polymer 3000 mAh battery




Symphony Z20 smartphone runs on Android 9.0 (Pie) operating system. The phone is powered by Octa-core (4x1.65 GHz Cortex-A55 CPU and 4x1.2 GHz Cortex-A55) processor. It has 3 GB. Internal storage options which can be extended with the help of Yes, up to 128 GB via microSD card. The smartphone has a IPS LCD capacitive touchscreen, 16M colors providing. The smartphone is fueled with a Non-removable Li-Polymer 3000 mAh battery. The main camera of the smartphone consists of a 13 MP 2 MP main camera. The sensors include Fingerprint (rear-mounted), accelerometer, proximity. Connectivity features in the smartphone include Bluetooth, GPS, 3.5 mm Jack and more. The Symphony Z20 are available in various colors such as Blue. It measures 161.4 x 76.7 x 8.55 mm and weighs 176 grams.

Secret codes for Symphony Z20

*#06#- International Mobile Equipment Identity
*#*#3646633#*#* or *#*#54298#*#*- Engineering Mode (for smartphones based on MTK processor)
*#*#4636#*#*- Displaying Phone Information (Phone, Battery, WiFi and other)
*#*#225#*#*- Event calendar
*#*#426#*#*- Debug information for Google Play service.
*#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. Unique Device ID, PID, ACAP
*#*#36245#*#*- Display a debug information about your email ID
*#*#8255#*#*- Used to launch G Talk Service Monitor
*#*#64663#*#*- Mobile phones Hardware Test
*#*#7780#*#*- Factory Data Reset (all phone data will be erased).
*2767*3855#- Device firmware is completely reinstalled
*#*#232338#*#*- Shows Wi-Fi Mac-address
*#*#34971539#*#* or *#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*#*#*- Mobile phone LCD test
*#*#3264#*#*- Ram version Symphony Z20
*#*#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/vibration test
*#*#2663#*#*- The displays touch-screen version of Android device
*#*#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 Symphony Z20



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#- Enable call waiting on your phone
#43#- Disable call waiting on your phone
*#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#- To turn Divert On for all calls
#21#- To turn Divert OFF for all calls
*#21#- Check status of divert all calls
Set up 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#- Enable Divert on no answer calls on your phone
#61#- Disable divert on no answer calls on your phone
*#61#- Check status of divert on no answer
Set up 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
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#- Barr all calls Activate
#330*code#- Barr all calls Deactivate
*#330*code#- Check status of barr all calls
Set barring of all outgoing international calls
**331*code#- To turn Barring On for all outgoing international calls
#331*code#- To turn Barring OFF for all outgoing international calls
*#331*code#- Check status of barr all outgoing international calls
Barr all outgoing international calls except home country
**332*code#- To turn Barring On for all outgoing international calls except home country
#332*code#- To turn Barring OFF for all outgoing international calls except home country
*#332*code#- Check status of barr all outgoing international calls except home country
USSD Codes For Barring all outgoing calls
**333*code#- To turn Barring On for all outgoing calls
#333*code#- To turn Barring OFF for all outgoing calls
*#333#- Check status of barr all outgoing calls
Set barring of all incoming calls
**35*code#- Barr all incoming calls Activate
#35*code#- Barr all incoming calls Deactivate
*#35#- Check status of barr all incoming calls
USSD Codes For Barring all incoming calls when roaming
**351*code#- Barr all incoming calls when roaming Activate
#351*code#- Barr all incoming calls when roaming Deactivate
*#351#- Check status of barr all incoming calls when roaming
Set barring of all incoming calls
**353*code#- Enable Blocking all incoming calls on your phone
#353*code#- Disable Block all incoming calls on your phone
*#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 Symphony Z20



userKybeca-CalMarch 24, 2024
The camera quality is impressive with a variety of shooting modes. The battery life is decent but could be better. The phone has good functionality and performance.
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