Did you know Android has a secret menu for customizing your phoneâs system user interface? Itâs called the System UI Tuner and it can be used for customizing an Android gadgetâs status bar, clock and app notification settings.
Introduced in Android Marshmallow, this experimental menu is hidden but itâs not difficult to find. Once you get to it, youâll wish you knew about it sooner.
Thatâs why weâre going to show you how to access Androidâs secret menu. Here are the steps to unlock it.
Unlocking the System UI Tuner
To turn this feature on, swipe down from the status bar to access your Quick Settings panel then hold down the Settings gear icon in the top-right corner. If executed correctly, your Android phone will vibrate and a message will appear saying that youâve successfully added the System UI Tuner to your Settings.
Here, you cando nifty user interface tweaks like selecting what icons show up on the status bar or have the battery level display while charging. You can also switch your clock to show hours and minutes plus the seconds, if you desire.
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You can have the Do Not Disturb toggle show up with the volume bar or turn off the volume shortcut for it.
One other useful toggle is the Power notification control. With this you can setdifferent notification levels for each app, ranging from Level 0 (block all notifications) to Level 5 (highest importance).
Currently, thereâs also an option to enable split-screen by swiping from the app overview icon.
How to turn off the System UI Tuner
Beware that theseSystem UI tweaks are experimental. As the System UI Tuner warning states:
âSystem Tuner gives you extra ways to tweak and customize the Android user interface. These experimentalfeatures may change, break, or disappear in future releases. Proceed with caution.â
To remove the System UI Tuner and any tweaks you have made,swipe down from the status bar again to access Quick Settings then hold the Settings gear icon again until your phone vibrates.
A prompt will then pop up asking if you want to âRemove System UI Tuner from Settings and stop using all of its features?â Select âRemoveâ to clear it out.
Alternatively, you can just simply go into the System UI Tuner menu, tap on the three vertical dots located in theupper-right corner then select âRemove from Settings.â
Bonus: Secret Android codes you can try
For more hidden Android tricks, dial these numbers out (as if youâre making a phone call), then hit the call button:
Android Codes
| Function | Code |
| Info/Test menu (opens a menu where you can get detailed information about your phone and usage statistics) | *#*#4636#*#* |
| Backlight test | *#*#0842#*#* |
| Display IMEI number (Your phoneâsunique identification number) | *#06# |
| LCD Display test | *#*#0*#*#* |
| Display camera info | *#*#34971539#*#* |
| Completely wipe phone and reinstall firmware | *2767*3855# |
| Display MAC address | *#*#232338#*#* |
| Display Bluetooth address | *#*#232337#*# |
| Field test (similar to the iPhoneâs Field Test code, this allows you to precisely measure the strength of your phoneâs reception) | *#*#7262626#*#* |
| Quick GPS Test | *#*#1472365#*#* |
FAQs
Enter the code *#*#4636#*#* on the keypad to display information about your current service carrier. This field test code should display items like the phone number, IMEI number, and app usage history. This Android service menu also provides information about the data network connection and Wi-Fi status.
What does * * 1472365 * * do? âș
Code to find your phone if lost or stolen (for Android): *#*#1472365#*#* This code shows your GPS location. You can use it to test if your GPS information is correct or to find and recover your lost phone. Note: This code works if your phone's GPS is on.
Why is * * 4636 * * not working? âș
There could be a few reasons why the code is not working on your Android device. Here are some possible explanations: Your device doesn't support the code: While the ##4636## code is a standard code for most Android devices, some manufacturers may have removed this code or disabled it on their devices.
What is the *# 9900 code? âș
The *#9900# code is a diagnostic code that is sometimes used on Samsung Android smartphones. It is generally not recommended for regular users to use this code unless directed to do so by Samsung customer support or a qualified technician.
What does * 3370 do? âș
Pressing the *3370# keys on your iPhone or Android device does not improve your cell phone signal. As mentioned, the code *3370# activates Enhanced Full Rate Codec on specific devices. Since users would experience better voice quality after entering the code, many assumed it was due to better signal.
What does *# 9900 do on Android? âș
The code *#9900# is a diagnostic code used on Samsung mobile devices. It provides access to the "SysDump" mode, which is a tool used by developers and technicians to gather system logs and information for troubleshooting purposes [1].
What does *# 9090 do? âș
*#9090# â Display diagnostic configuration. *#7353# â Open the Quick test menu.
What is this code for ## 002? âș
The code ##002# is known as a GSM (Global System for Mobile Communications) Unconditional Call Forwarding deactivation code. It is used on mobile phones to disable unconditional call forwarding, which means that any incoming calls will no longer be automatically forwarded to another phone number.
What is hidden 4636 menu? âș
##4636##
Display Complete Phone Information This code surfaces a hidden menu called Testing. It shows everything from battery stats to usage times, as well as specific absorption rate (SAR) values. The menu has multiple tabs that reveal extensive device status and testing options.
What is ## 21 on Android? âș
The Purpose Behind It. *#21# is a specific Unstructured Supplementary Service Data (USSD) code that, when entered, allows you to check if call forwarding is enabled on your mobile device. Think of it as a flashlight, letting you peek into a specific setting on your phone.
Dialing *#21# on a GSM network like AT&T or T-Mobile will tell you whether your calls and messages are being diverted to another number. Call **21* if you use Verizon, US Cellular, or another CDMA network to discover any unconditional call forwarding settings that may be used to tap your phone.
What is the master code to unlock any Android? âș
On the lock screen, swipe up to reveal the full dial pad. Step 2: Once the dial pad is visible, enter the asterisk symbol (*). Step 3: After the asterisk, enter the master unlock code, ##726282## to unlock your Android. NOTE: You can also try the master codes to factory reset Android, ##7780## or *2767*3855#.
How do I unlock advanced settings on Android? âș
Advanced settings are accessible via the Settings button in the sidebar. Open the sidebar, scroll down to reveal the Settings button, tap the Settings button, select the Options tab, then scroll down to show the Advanced section.
What is secret key in Android? âș
The Keystore API uses both types of cryptography in order to safeguard secrets. A public/private key RSA pair is generated, which is stored in the Android device's keystore and protected usually by the device PIN. An AES-based symmetric key is also generated, which is used to encrypt and decrypt the secrets.
What does the code * * 4636 * * do on Android? âș
One of the most useful Android secret codes is the *#*#4636#*#* code, which displays your phone info, usage statistics, and Wi-Fi details. You can get a detailed view of your battery usage statistics and Wi-Fi details, set your preferred network type, and run ping tests.
What is the secret code to see if your phone is hacked? âș
##4636## or ##197328640## âĄïž To Check Unknown Connections (Android) If you're concerned someone has installed malware or spyware on your Android phone, these codes open up a screen that lists all running processes and services.
What happens when you dial *# 0 *#? âș
When you enter *#0*# into the phone's dialer, the device enters service mode and brings up a diagnostics menu. From this screen, you can view and run multiple diagnostics to test device hardware like buttons, sensors, and cameras. The code #0# is a special diagnostic code used on Samsung Android phones.
