What is engineering mode on Android, and how to activate it?


Android, the popular open-source operating system, has a hidden feature known as “Engineering Mode.” This mode allows users to explore their device’s settings in-depth, offering the potential to enhance its performance. Engineering Mode provides various customization features, from tweaking network settings to modifying audio output. Note: Proceed with caution. Incorrect adjustments can impair your device’s functionality.

Benefits of Engineering Mode

Engineering Mode can significantly improve the way you interact with your device. Here’s a list of a few possible enhancements:

  1. Change Network Settings: This includes manipulating LTE bands according to your preferences or needs.
  2. Boost Your Smartphone Audio: Adjust the audio settings for optimal sound.
  3. Customize Hardware and Camera Settings: Tailor camera settings for superior photo and video quality.
  4. Increase WiFi Range and Signal: Optimize WiFi settings for better connectivity.
  5. Improve Battery Performance: Manage battery usage for extended life.
  6. Customize Bluetooth: Change Bluetooth settings for improved pairing and connection.
  7. Change MAC Address: You may want to alter your device’s MAC address for privacy or networking reasons.
  8. Change the IMEI code: Alter your Android device’s International Mobile Equipment Identity (IMEI) code. Be aware that this may be illegal in some jurisdictions.
  9. CPU Management: Manage how your device’s processor functions.
  10. Recovery Mode: Access and utilize your device’s recovery options.

How to Access Engineering Mode

There are several ways to access Engineering Mode on your Android device.

Access Engineering Mode using Dialpad.

  1. Open the Phone/Dialer app on your Android device.
  2. Enter the following code: *#*#4636#*#* (This is a universal code for most Android devices.)
  3. The device will automatically take you to a menu, which is the Engineering Mode.

Android Engineering Mode Codes

Different manufacturers may use different codes to access Engineering Mode. Some common codes include:

● For most devices: *#*#4636#*#*

● For MediaTek devices: *#*#3646633#*#*

● For Samsung Galaxy devices: *#0011#

Accessing Engineering Mode using an App

There are apps available, such as MTK Engineering Mode, which can directly take you to the Engineering Mode. Here’s how to do it:

  1. Download and install MTK Engineering Mode from Google Play Store.
  2. Open the app and select ‘MTK settings.’
  3. You’ll be directed to the Engineering Mode.

Processor-Specific Access

Accessing the Engineering Mode can sometimes be processor specific.

How to Activate Engineering Mode in MediaTek Processor

  1. Open your dial pad and enter *#*#3646633#*#*.
  2. The device will automatically open the Engineering Mode.

How to Enter Engineering on Snapdragon Processor

  1. Open your dial pad and enter *#*#4636#*#*.
  2. The device will automatically open the Engineering Mode.

How to Access Engineering Mode on Exynos Processor

For Samsung devices with Exynos processors, the code is different:

  1. Open your dial pad and enter *#0011#.
  2. The device will automatically open the Engineering Mode.


The “Engineering Mode” on Android devices is a powerful feature for those who want to optimize their device’s performance and customize it according to their preferences. However, remember to use it cautiously, as incorrect settings can lead to device malfunctions.

Pro Tips:

  1. Before making any changes, ensure you understand what each setting does.
  2. If you’re uncertain, consult online forums or experts for advice.
  3. Always note original settings before any modifications, allowing you to restore them if needed.


What is MTK Engineering Mode used for?

MTK Engineering Mode is used to access advanced settings or features on MediaTek devices. It can enhance audio quality, change network settings, and more.

How to enter engineering mode in Oppo?

Open your dial pad and enter *#*#3646633#*#*. This should take you directly to Engineering Mode.

What is the code for Samsung Engineer Mode?

You can enter Engineer Mode on a Samsung device by dialing *#0011#.

How do I open engineer mode in Vivo?

Open the dial pad and enter *#*#3646633#*#*. This will open the Engineering Mode.

How can I change the LTE band using Engineering Mode?

In Engineering Mode, navigate to ‘BandMode.’ Select your desired band and save the changes.

Is it safe to use Engineering Mode?

It’s safe if you know what you’re doing. Incorrect settings can lead to device malfunctions.

Can I increase my phone’s audio using Engineering Mode?

Yes, you can boost your device’s audio in Engineering Mode. However, extreme settings can damage the speakers.

Can I change my device’s MAC address using Engineering Mode?

Yes, you can change your device’s MAC address in Engineering Mode, but remember, this could lead to networking issues.

Is Engineering Mode available on all Android devices?

Engineering Mode is primarily available on Android devices. However, the access codes may vary across different manufacturers and models.

Can Engineering Mode extend battery life?

You can manage power consumption and potentially extend battery life using Engineering Mode. Be cautious not to change settings that could negatively affect your device’s functionality.