How to Open Engineering Mode in LG Harmony 3

LG Harmony 3

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 LG Harmony 3.

LG Harmony 3 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 LG Harmony 3 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 LG Harmony 3

How to root LG Harmony 3

Hard reset for LG Harmony 3

How to reboot LG Harmony 3

How to unlock LG Harmony 3

What to do if LG Harmony 3 won't turn on

What to do if LG Harmony 3 doesn't charge

What to do if LG Harmony 3 doesn't connect to PC via USB

How to take a screenshot on LG Harmony 3

How to reset FRP on LG Harmony 3

How to call recording on LG Harmony 3

How to update LG Harmony 3

How to connect LG Harmony 3 to TV

How to clear the cache on LG Harmony 3

How to backup LG Harmony 3

How to disable ads on LG Harmony 3

How to clear storage on LG Harmony 3

How to increase font on LG Harmony 3

How to share internet on LG Harmony 3

How to transfer data to LG Harmony 3

How to unlock bootloader on LG Harmony 3

How to recover photos on LG Harmony 3

How to record the screen on LG Harmony 3

How to find blacklist in LG Harmony 3

How to set up fingerprint on LG Harmony 3

How to block number on LG Harmony 3

How to enable auto-rotate on LG Harmony 3

How to set up or turn off an alarm on LG Harmony 3

How to change ringtone on LG Harmony 3

How to enable battery percentage on LG Harmony 3

How to turn off notifications on LG Harmony 3

How to turn off Google assistant on LG Harmony 3

How to turn off the lock screen on LG Harmony 3

How to delete app on LG Harmony 3

How to recover contacts on LG Harmony 3

Where is the recycle bin on LG Harmony 3

How to install WhatsApp on LG Harmony 3

How to set contact photo in LG Harmony 3

How to scan QR code on LG Harmony 3

How to connect LG Harmony 3 to computer

How to install SD card in LG Harmony 3

How to update Play Store in LG Harmony 3

How to install Google Camera in LG Harmony 3

How to enable USB debugging on LG Harmony 3

How to turn off LG Harmony 3

How to charge LG Harmony 3

How to use the camera on LG Harmony 3

How to find lost LG Harmony 3

How to set password on LG Harmony 3

How to turn on 5g on LG Harmony 3

How to turn on VPN on LG Harmony 3

How to install apps on LG Harmony 3

How to insert a SIM card in LG Harmony 3

How to enable and configure NFC on LG Harmony 3

How to set time on LG Harmony 3

How to connect headphones to LG Harmony 3

How to clear browser history on LG Harmony 3

How to disassemble LG Harmony 3

How to hide an app on LG Harmony 3

How to download YouTube videos on LG Harmony 3

How to unblock a contact on LG Harmony 3

How to turn on the flashlight on LG Harmony 3

How to split the screen on LG Harmony 3

How to turn off the camera sound on LG Harmony 3

How to trim video on LG Harmony 3

How to bypass the Google account on LG Harmony 3

How to fix black screen on LG Harmony 3

How to change the language on LG Harmony 3

How to open recovery mode in LG Harmony 3

How to find and turn on a voice recorder on LG Harmony 3

How to make video calls on LG Harmony 3

LG Harmony 3 sim card not detected

How to transfer contacts to LG Harmony 3

How to enable/disable «Do not disturb» mode on LG Harmony 3

How to enable/disable answerphone on LG Harmony 3

How to set up face recognition on LG Harmony 3

How to set up voicemail on LG Harmony 3

How to listen to voicemail on LG Harmony 3

How to check the IMEI number in LG Harmony 3

How to turn on fast charging on LG Harmony 3

How to replace the battery on LG Harmony 3

How to update the application on LG Harmony 3

Why the LG Harmony 3 discharges quickly

How to set a password for apps in the LG Harmony 3

How to format LG Harmony 3

How to install TWRP on LG Harmony 3

How to set up call forwarding on LG Harmony 3

How to empty the recycle bin on LG Harmony 3

Where to find the clipboard on LG Harmony 3

How to Open Engineering Mode in Another Phones