Android has been Hidden Features among them Iot Hidden menu is one of those Hidden features. In the post, we are covering the What is IoT Hidden menu settings and How to Access it.
IoT Hidden menu is helpful in tweaking the look of the device. Android has many useful features but they are Hidden Since they are not for normal users. If you learn about android development you will learn a lot of things. It is present under com.android.hiddenmenu package.

Table of Contents
- What is IoT Hidden Menu in Android?
- Engineering Mode vs IoT Hidden Menu
- Features of IoT Hidden Menu
- How to Acivate or acces Iot Hidden Menu settings
What is IoT Hidden Menu in Android?
IoT refers to the Internet of Things. IoT Hidden Menu is a hidden setting that is available for android which lets you customize the User Interface (UI) of your device. It is known as System UI Tuner.
You can customize the Notification bar, Home screen, App locks, etc using IoT Hidden Settings or System UI Tuner. It includes experimental features that are yet to be released. Some people call these hidden settings as Easter eggs or iothiddensettings. These are Turned OFF by developers because users may change settings unaware of damages.
Engineering Mode vs IoT Hidden Menu
Most people Think Engineering mode and IoT menu settings are the same when they hear the word “Hidden”. But they are completely different. System Tuner or IoT hidden menu settings allow you to tweak the User Interface while Engineering mode allows you to tweak the entire device.
Features of IoT Hidden Menu

1. Check Display

If you feel you have a problem with display color accuracy then you can use the IoT menu to check the display. You can try different outputs. There will be different color options to test. if your device passes all the tests then the display is working properly. You may any application that is conflicting with your phone’s display.
2. Proximity Sensor
You may have noticed your screen turning off when you bring it nearer to your ear while calling or receiving the call. This is due to the Proximity sensor that is present on your smartphone. This sensor ensures that there are no unwanted touches while calling or receiving.
You can check whether the Proximity sensor is working or Not using the IoT hidden menu settings. The sensor is present in or near the camera. You can check it by directly turning it OFF and ON. When it is ON screen should blackout.
3. Sensor Settings

This includes all the available sensors settings. You can check Accelerometer Sensor, Gyroscope, Magnetic Sensor, and fingerprint test. The Menu includes detailed reports and self-test options.
An accelerometer is used for Screen oriented and screen auto rotation. Gyroscope for gestures and other controls. Fingerprint sensor for Biometrics security. You can check whether these sensors are working or not.
4. Grip Senosor
It’s a new kind of sensor available in Samsung devices. You can check the working of the grip sensor using IoT hidden Menu Settings.
5. Camera
IoT menu provides you to check your device camera settings. You can check either Front or Back camera
6. Speaker and Receiver
Sometimes your device’s speaker may not work. It may be due to bugs or other reasons. You can test the speaker by playing audio. But checking the receiver could some difficult. Buy by using IoT Menu settings you can check both Speaker and recievrs working.
How to Acivate or acces Iot Hidden Menu settings
Since IoT hidden menu settings are Hidden you need to unhide them before using them. They are Hidden because users may mess with the settings and end up getting the device damaged. Hence these Settings are Hidden from Users.
System UI tuner or IoT Hidden settings are not available fr every smartphone. For those kinds of smartphones, you can use the app. Follow the below Methods to Activate IoT Hidden Menu Settings.
How to Activate IoT hidden settings on android using Settings Icon
This method works on most smartphones excluding Samsung smartphones. For Samsung follow the next method. Activate the IoT Hidden menu is easier compared to Engineering Mode.
Step 1: Open the Notification bar on your smartphone. you can open it by swiping it down from the top.
Step 2: Press and hold the settings icon until your device vibrates. You will get a Success message.
Step 3: Go to Settings on your smartphone. You will find a new setting named System UI Tuner. Tap on it. A pop-up notice will appear, Read it and click on Got it.
Step 4: The System UI Turner will be having many settings you can choose the one that you want to tweak.
Step 5: You can alter notification settings, Key combinations for activating certain features, and many more.
How to Activate IoT hidden settings on Samsung smartphones.
In Samsung, You can activate the IoT Hidden Settings. But it does not have all the features as in other smartphones. You can test displays and sensors etc. Follow the step below to activate IoT Hidden Settings on Android.
Step 1: Open your Dialpad or Dialer app on your Samsung smartphone.
Step 2: Type *#0*# on your dial pad
Step 3: Upon the Insertion of # a menu will appear containing the sensor and other options.
It has settings related to Sensor, touch, Camera, Display test, vibration and volume test, etc.
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