Developer mode on Android 6: how to enable it and what it gives

You are the owner of a smartphone on Android 6.0 Marshmallow and want to access hidden settings systems? Developer Mode is a powerful tool that provides advanced capabilities for fine-tuning your device, debugging applications, and optimizing performance. However, not everyone knows how to activate it, especially on older versions of the OS.

In this article we will look in detail at how to enable developer mode on Android 6, what functions become available after activation, and what you should pay attention to in order not to harm the device. It is important to understand: this mode is intended for experienced users and developers, but even an ordinary user can find it useful for speeding up the system or testing new functions.

What is developer mode and why do you need it

Developer mode (Developer Mode) is a hidden settings section Androidthat provides access to low-level system parameters. It was originally created for testing applications, but over time it became popular among enthusiasts who want to get the most out of the device.

On Android 6.0 Marshmallow this mode allows you to:

• 🔧 Enable USB debugging to work with ADB and other tools developer.
• ⚡ Speed up interface animation by disabling or reducing its duration.
• 📱 Change graphics rendering parameters, for example, enable forced use of the GPU.
• 🔄 Monitor and limit background processes to save battery.
• 🛠️ Enable additional error logs to help diagnose problems.

However, not all features are created equal. For example, forcing it on GPU acceleration can lead to artifacts in some applications, and disabling animation will make the interface less smooth. Therefore, before changing any parameters, you should understand what this will lead to.

Preparing your device before enabling Developer Mode

Before activating Developer Mode, make sure your device is ready for the changes. Here are some important points:

• 📱 Check the version Android: go to Settings → About phone → Android version. Must be indicated 6.0 or 6.0.1.
• 🔋 The battery charge must be at least 50%to avoid sudden shutdown during setup.
• 📝 Make a note of your current screen settings (brightness, timeout) - some developer mode settings may reset them.
• 🔒 Make sure there is no important unsaved data on your device. In rare cases, incorrect settings may lead to failure.

If you plan to use USB debugging, prepare a cable and a computer with installed drivers ADB. It is also useful to have the original firmware of your device on hand in case you need to roll back changes.

Step-by-step guide: how to enable developer mode on Android 6

The process of activating developer mode on Android 6.0 Marshmallow standard for most devices, but may differ slightly depending on the manufacturer’s shell (Samsung Experience, MIUI, EMUI etc.). We will consider a universal method.

1. Open Settings your device. Usually the icon looks like a gear or three bars.

2. Scroll down and find the section About phone (sometimes called About the device or Information about the phone).

3. Inside this section, find the item Build number (or Build numberUsually it is located at the very bottom.

4. Click on Build number 7 times in a row. After the first few clicks, a notification will appear with a countdown: "You're almost there!" or "3 steps left".

5. After the seventh click you will see a message: "You have become a developer!" or "Developer mode is enabled".

6. Return to the main menu Settings. Now a new section will appear there - For developers (or Developer options).

If the partition does not appear immediately, try rebooting the device. In rare cases, you may need to click on Build number after the reboot.

Where to find and how to open the parameters developer

After successful activation, the section For developers may be located in different places depending on the device manufacturer. Here are the most common options:

Manufacturer	Path to section	Features
Google Pixel/Nexus	Settings → For developers	The section appears immediately after activation, without additional actions.
Samsung	Settings → Advanced → For developers	On some models require confirmation of the PIN code.
Xiaomi	Settings → Advanced settings → For developers	You may need to link to an account Mi.
Huawei/Honor	Settings → System → For developers	On some firmware the section is hidden until enter the password.

If you cannot find the section, try using the search in the settings (magnifying glass icon in the upper right corner). Enter the request "developer" or "debug".

What to do if the section does not appear?

If after 7 clicks on Build number the section does not appear, try:

1. Reboot the device.

2. Check if the section is hidden in additional settings (for example, Settings → System → Advanced).

3. Update the firmware to the latest version for your model.

4. Reset the settings to factory settings (as a last resort, it will delete all data!).

Basic functions of the developer mode on Android 6

After activating the developer mode, you get access to dozens of parameters. Let's consider the most useful and safe for the average user:

• 🔍 USB debugging (USB debugging) - allows you to connect the device to a computer for debugging via ADB.
• ⚡ Window animation, Animation of transitions, Animation duration - reducing or disabling these parameters will speed up the process. interface operation.
• 📱 Do not turn off screen (Stay awake) - the screen will not turn off when charging (useful for presentations).
• 🔄 Limit background processes —allows you to reduce the number of applications running in the background to save battery.
• 🛠️ GPU acceleration —force the use of the GPU to render 2D graphics (can speed up, but sometimes causes artifacts).
• 📡 Call symbols —displays additional information about the network (useful for diagnosing connection problems).

However, there are also dangerous settings that can lead to unstable operation of the device:

• ⚠️ Do not disable "HDCP check" —this may interfere with the operation of protected multimedia (for example, Netflix or Disney+).
• ⚠️ Do not change parameters "Selecting execution time" (ART/Dalvik), if you do not understand the consequences - this may lead to a reboot cycle.

Risks and warnings: what not to do in developer mode

On Android 6.0 Marshmallow, some developer mode settings can lead to irreversible consequences, including data loss or "brick" device. Here is what is strictly not recommended to do:

⚠️ Attention! Changing settings "Allow OEM unlocking" on locked bootloaders (for example, on Samsung or LG) can lead to activation of protection FRP (Factory Reset Protection) and the inability to use the device after reset.

• 🚫 Do not enable "Allow fictitious locations"if you don’t understand how it works. This may interfere with location services.
• 🚫 Do not disable "Automatic system update" —this will make your device vulnerable to exploits.
• 🚫 Not change settings "USB Configuration" for unfamiliar modes (for example, MIDI or PTP), if you are not sure of their purpose.
• 🚫 Do not activate "Strict mode" (Strict Mode) is a tool for developers that shows application delays with a flashing screen.

If you accidentally changed a critical option and the device starts to work unstable, try resetting the developer mode settings to standard. To do this:

1. Open the section For developers.
2. In the upper right corner, click on the three dots (menu) and select "Reset settings".

How to disable developer mode on Android 6

If you no longer need advanced settings or want to return the device to its original state, developer mode can be disabled. To do this:

1. Go to Settings → Applications (or Settings → All applications).

2. Find the application in the list "Settings" (usually it is marked with a gear icon) and open it.

3. Click "Storage", then "Clear data" and confirm the action.

4. Reboot the device. The section For developers will disappear from the settings.

An alternative method (on some devices):

1. Open the section For developers.
2. In the upper right corner, click on the switch to disable developer mode.

⚠️ Attention! On devices Samsung s Knox resetting the developer settings may trigger the flag Knox 0x1which will void the warranty. Check this before proceeding!

FAQ: Frequently asked questions about Developer mode on Android 6

Is it possible to enable developer mode if the build number is inactive (gray)?

If Build number is inactive, this may mean that:

• The device is locked administrator policies (for example, on a work phone).
• The firmware has been modified and some functions are disabled.
• You do not have enough rights (for example, on devices with multiple users).

Solution: try updating the firmware or contact the manufacturer.

Why after turning it on developer mode, mobile data is gone?

This can happen if you change the settings "Network mode" or "Type network" in the developer section. Return the parameters to their original state:

1. Open Settings → For Developers.
2. Find network-related settings (Set preferred network type or similar).
3. Select LTE/3G/2G (auto) or standard mode for your operator.

Is it possible to overclock the processor through developer mode?

On Android 6.0 there are no built-in tools for overclocking the CPU/GPU. in standard developer mode. This requires:

• Rights root.
• Special kernels or firmware (for example, Custom ROM).
• Applications like Kernel Adiutor or SetCPU.

⚠️ Overclocking can lead to overheating, shortened battery life and unstable operation!

How to return standard animation settings if the interface has become slow?

If you have reduced or disabled animation, but want to return everything as it was:

1. Open Settings → For Developers.
2. Find parameters:
   • Window animation scale — set 1x.
   • Transition animation scale —set 1x.
   • Duration animation —set 1x.

Reboot the device.

Will a factory reset remove developer mode?

Yes, full reset (Wipe Data/Factory Reset) will delete all settings, including activating developer mode. After the reset, you will need to click on Build number 7 times.

However, if you reset via Settings → Recovery and reset, some parameters (for example USB debugging) may save.