Asus Zenfone Max ZC550KL secret codes

OS: Android 5.0.1 (Lollipop), upgradable to 6.0.1 (Marshmallow); ZenUI

CPU: Quad-core 1.2 GHz Cortex-A53

Display: 5.5" inc

Camera: 13 MP, Single

Asus Zenfone Max ZC550KL smartphone runs on Android 5.0.1 (Lollipop), upgradable to 6.0.1 (Marshmallow); ZenUI operating system. The phone is powered by Quad-core 1.2 GHz Cortex-A53 processor. It has 8/16 GB, 2 GB RAM. Internal storage options which can be extended with the help of microSD, up to 64 GB (dedicated slot). The smartphone has a IPS LCD providing, Screen-to-Body Ratio of 69.0%. The smartphone is fueled with a 5000 mAh, Non-removable Li-Po. The main camera of the smartphone consists of a 13 MP, Single. The sensors include Accelerometer, proximity, compass. Connectivity features in the smartphone include Bluetooth, A-GPS, GLONASS, BDS, Wi-Fi, 3.5 mm Jack and more. The Asus Zenfone Max ZC550KL are available in various colors such as Black, White. It measures 156 x 77.5 x 10.6 mm and weighs 202 g.

Secret codes for Asus Zenfone Max ZC550KL

*#06#	- IMEI, a unique number given to every single mobile phone
##3646633## or ##54298##	- Engineering Mode (for smartphones based on MTK processor)
##4636##	- Display information about Phone, Battery and Usage statistics
##225##	- This code show the number of festivities and 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
#12580369#	- Software and hardware info
*#0283#	- Audio Loopback Control
#7465625638#	- Insert Network Lock Key Code
##759##	- RLZ Debug UI (Device ID, Activation Status, Some Ping Stuff, and few other things)
##36245##	- Display Email debug informations
##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##	- Hardware Test (Version, Sensors, Sim, WLAN, Bluetooth, Battery, OTG, Radio, Speakers)
##7780##	- Used for a factory data reset.
27673855#	- The firmware of the device is completely reinstalled
##232338##	- 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
##273283255663282##*	- 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##	- Ram version
##1111##	- FTA Software version
##2664##	- Touch-Screen test
##0588##	- Test the functionality of your proximity sensor
##8351##	- Enables voice dialing logging mode
##232331##	- Show Bluetooth Test Mode
##232337#*#	- Displays bluetooth device address
##7262626##	- Field test
##0289## OR ##0673##	- Audio test
##0842##	- Device test (vibration test and backlight test)
##2663##	- Display device's 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 Asus Zenfone Max ZC550KL

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

Set up Call waiting
*43#	- Activate call waiting
#43#	- Deactivate call waiting
*#43#	- Check status of call waiting

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

Call Forward All
21PhoneNumber#	- Register and activate divert all calls to PhoneNumber
##21#	- Unregister divert all calls
*21#	- Enable Divert all calls on your phone
#21#	- Disable Divert all calls on your phone
*#21#	- Check status of divert all calls

Set call forwarding in case of "no answer"
*61PhoneNumber#	- 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

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

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

Barr 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

Blocking 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

USSD Codes For Barring all outgoing international calls
*331code#	- Barr all outgoing international calls Activate
#331*code#	- Barr all outgoing international calls Deactivate
#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 on your phone
#332*code#	- Disable Barr all outgoing international calls except home country on your phone
#332code#	- Check status of barr all outgoing international calls except home country

Blocking all outgoing calls
*333code#	- Barr all outgoing calls Activate
#333*code#	- Barr all outgoing calls Deactivate
*#333#	- Check status of barr all outgoing calls

Barr 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

Blocking 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

USSD Codes For Barring all incoming calls
*353code#	- 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 Asus Zenfone Max ZC550KL

	CesDazl	March 17, 2024
	The operating system is smooth and efficient, with regular updates. The design is sturdy but bulky. The screen is crisp but could be brighter. Camera quality is decent. Battery life is impressive. Good value for money.
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