LG K20 secret codes

OS: Android 7.0 Nougat OS

CPU: Quad-Core 1.4GHz ARM Cortex A53

RAM: 1.5GB

Display: 5.3 inches FHD

Camera: 8 Megapixels with Single-LED and AF Rear Camera

Battery: 2,800 mAh

LG K20 smartphone runs on Android 7.0 Nougat OS operating system. The phone is powered by Quad-Core 1.4GHz ARM Cortex A53 processor. The smartphone has a IPS, LCD capacitive touchscreen providing. The main camera of the smartphone consists of a 8 Megapixels with Single-LED and AF Rear Camera. The sensors include Proximity Sensor, Accelerometer, Compass, Ambient Light, Fingerprint. Connectivity features in the smartphone include, A-GPS, GLONASS, GPS Near Field Communication (NFC), Wi-Fi, NFC, 3.5 mm Jack and more. It measures 149.9 mm x 76.2 mm x 7.6 mm and weighs 142 Grams (With Battery).

Secret codes for LG K20

*#06#	- IMEI number is a unique serial number
#546368#818# or 2945#*#	- Engineering Mode
##3646633## or ##54298##	- Engineering Mode (for smartphones based on MTK processor)
##4636##	- Diagnostic and general settings mode (Phone, Battery, WiFi and other)
##225##	- This code show the number of festivities and events in your calendar
##426##	- Check the connectivity between the FCM server and the mobile devices
*#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 Google Talk Service Monitor
##64663##	- Hardware Test (Version, screen, led, sound, vibrate, all sensors)
##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#	- Show 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
##273283255663282##*	- For a quick backup to all your media files
##1575##	- Full 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##	- Ram version
##1111##	- FTA Software version
##2664##	- Touch-Screen test
##0588##	- Test the proximity sensor
##8351##	- Enables voice dialing logging mode
##232331##	- Test the Bluetooth
##232337#*#	- Shows Bluetooth device address in LG K20
##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 LG K20

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#	- Activate waiting call
#43#	- Deactivate waiting call
*#43#	- Check status of call waiting

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

Set call forwarding
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#	- Activate no answer calls divert
#61#	- Deactivate no answer calls divert
*#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

Codes for barring all outgoing calls
*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 barr 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#	- Barr all outgoing international calls is turned ON
#331*code#	- Barr all outgoing international calls is turned OFF
#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 barr all outgoing calls
*333code#	- Barr all outgoing calls is turned ON
#333*code#	- Barr all outgoing calls is turned OFF
*#333#	- Check status of barr all outgoing calls

Codes for barring all incoming calls
*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 barr 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#	- Activate all incoming calls Blocking
#353*code#	- Deactivate all incoming calls Blocking
*#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 LG K20

	theo	October 31, 2022
	increase the ring time to 30 seconds.
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