How to Open Engineering Mode in Samsung Galaxy A04

Samsung Galaxy A04

The developers of most Android-based operating systems do not provide users with all the customisation options for their smartphones. Highly specialised and dangerous features are hidden in the engineering mode or developer mode. This is for the safety of the user, as many settings in the engineering mode can drastically change the way the device works.

For example, the most popular function in the Engineering mode is Volume Boost. This function allows you to increase the volume beyond the maximum level intended by the smartphone's designers. The guaranteed result is that the speakers will fail sooner.

However, the tech menu is still necessary for some users and all phone manufacturers offer free access to it, with the possible exception of Apple's shopping mode. However, you need to know special USSD codes that can be used to open engineering mode in the Samsung Galaxy A04.

Samsung Galaxy A04 special codes and where they can be obtained

The codes that unlock certain functions are known only to the smartphone manufacturer. They are usually found in the technical documentation, a small booklet that comes in the phone's box and that 95% of people throw away after opening.

Another way to find out the USSD code for a particular model is to contact the manufacturer directly. A good example of this is Chinese brands, which discreetly answer this question on popular marketplaces.

The last sure-fire way is to simply search the internet. Every code for a particular device has been known for a long time, some of them even before the device was released. All you have to do now is type "code for Samsung Galaxy A04 Menu Engineering" in any search engine.

Quick guide

USSD codes are a series of numbers and symbols that you need to enter into your phone or call application. They are essentially entered in the same place you make a call on your smartphone.

  1. To do this, you need to open the dialling window. It will either open automatically when you log in to the application, or you can click on a small icon at the bottom of the screen.

  2. Enter the code you found earlier into the selection window. There is no need to press any buttons after entering the code, the engineering menu will open immediately.
  3. Look forward to an open engineering mode. Read the following information to avoid making any stupid mistakes.

Use all functions of the engineering menu at your own risk. We strongly advise you not to enable or disable anything you do not understand. Another popular feature is factory unlock. It is usually used to gain root privileges. However, enabling factory lock is written into the hardware of the device.

This is not about stealing data, it is about voiding the manufacturer's warranty because you have activated a feature that was not originally available to you. And if you catch a virus instead of getting root privileges, which is very common, the manufacturer has the right to deny you warranty support.

So once again: Never turn on or off features you do not understand!

Share this page with your friends:

See also:



How to flash Samsung Galaxy A04

How to root Samsung Galaxy A04

Hard reset for Samsung Galaxy A04

How to reboot Samsung Galaxy A04

How to unlock Samsung Galaxy A04

What to do if Samsung Galaxy A04 won't turn on

What to do if Samsung Galaxy A04 doesn't charge

What to do if Samsung Galaxy A04 doesn't connect to PC via USB

How to take a screenshot on Samsung Galaxy A04

How to reset FRP on Samsung Galaxy A04

How to call recording on Samsung Galaxy A04

How to update Samsung Galaxy A04

How to connect Samsung Galaxy A04 to TV

How to clear the cache on Samsung Galaxy A04

How to backup Samsung Galaxy A04

How to disable ads on Samsung Galaxy A04

How to clear storage on Samsung Galaxy A04

How to increase font on Samsung Galaxy A04

How to share internet on Samsung Galaxy A04

How to transfer data to Samsung Galaxy A04

How to unlock bootloader on Samsung Galaxy A04

How to recover photos on Samsung Galaxy A04

How to record the screen on Samsung Galaxy A04

How to find blacklist in Samsung Galaxy A04

How to set up fingerprint on Samsung Galaxy A04

How to block number on Samsung Galaxy A04

How to enable auto-rotate on Samsung Galaxy A04

How to set up or turn off an alarm on Samsung Galaxy A04

How to change ringtone on Samsung Galaxy A04

How to enable battery percentage on Samsung Galaxy A04

How to turn off notifications on Samsung Galaxy A04

How to turn off Google assistant on Samsung Galaxy A04

How to turn off the lock screen on Samsung Galaxy A04

How to delete app on Samsung Galaxy A04

How to recover contacts on Samsung Galaxy A04

Where is the recycle bin on Samsung Galaxy A04

How to install WhatsApp on Samsung Galaxy A04

How to set contact photo in Samsung Galaxy A04

How to scan QR code on Samsung Galaxy A04

How to connect Samsung Galaxy A04 to computer

How to install SD card in Samsung Galaxy A04

How to update Play Store in Samsung Galaxy A04

How to install Google Camera in Samsung Galaxy A04

How to enable USB debugging on Samsung Galaxy A04

How to turn off Samsung Galaxy A04

How to charge Samsung Galaxy A04

How to use the camera on Samsung Galaxy A04

How to find lost Samsung Galaxy A04

How to set password on Samsung Galaxy A04

How to turn on 5g on Samsung Galaxy A04

How to turn on VPN on Samsung Galaxy A04

How to install apps on Samsung Galaxy A04

How to insert a SIM card in Samsung Galaxy A04

How to enable and configure NFC on Samsung Galaxy A04

How to set time on Samsung Galaxy A04

How to connect headphones to Samsung Galaxy A04

How to clear browser history on Samsung Galaxy A04

How to disassemble Samsung Galaxy A04

How to hide an app on Samsung Galaxy A04

How to download YouTube videos on Samsung Galaxy A04

How to unblock a contact on Samsung Galaxy A04

How to turn on the flashlight on Samsung Galaxy A04

How to split the screen on Samsung Galaxy A04

How to turn off the camera sound on Samsung Galaxy A04

How to trim video on Samsung Galaxy A04

How to bypass the Google account on Samsung Galaxy A04

How to fix black screen on Samsung Galaxy A04

How to change the language on Samsung Galaxy A04

How to open recovery mode in Samsung Galaxy A04

How to find and turn on a voice recorder on Samsung Galaxy A04

How to make video calls on Samsung Galaxy A04

Samsung Galaxy A04 sim card not detected

How to transfer contacts to Samsung Galaxy A04

How to enable/disable «Do not disturb» mode on Samsung Galaxy A04

How to enable/disable answerphone on Samsung Galaxy A04

How to set up face recognition on Samsung Galaxy A04

How to set up voicemail on Samsung Galaxy A04

How to listen to voicemail on Samsung Galaxy A04

How to check the IMEI number in Samsung Galaxy A04

How to turn on fast charging on Samsung Galaxy A04

How to replace the battery on Samsung Galaxy A04

How to update the application on Samsung Galaxy A04

Why the Samsung Galaxy A04 discharges quickly

How to set a password for apps in the Samsung Galaxy A04

How to format Samsung Galaxy A04

How to install TWRP on Samsung Galaxy A04

How to set up call forwarding on Samsung Galaxy A04

How to empty the recycle bin on Samsung Galaxy A04

Where to find the clipboard on Samsung Galaxy A04

How to Open Engineering Mode in Another Phones