You have decided to root the device and install a custom ROM or want to download a computer application. Before you can interfere with ADB commands on Android to install some software for the device, you need to activate the option for the developer.
The developer option on Android devices will be hidden by default, to avoid changes that affect the system. The following article will guide you how to turn on the developer mode on Android, illustrate on Samsung Galaxy S9 and how to turn off this option if not used anymore. The options in the developer mode will help a lot for the device, you will have more useful options for the machine such as fixing USB errors, using ADB, changing DPI to be more suitable, …
1. Activate the Developer Options
Step 1: Click on the icon Settings On the main interface of the device. In the interface of Settings pull down and then click on the item About phone/Introduction to phone. Then click on the item Software Information. On the miui of Xiaomi phones, you will find MIUI version or Number of editorsand click continuously until there is a notification of the development of the developer.
Step 2: At the new interface click on the item Build Number 7 times consecutive. After 2 touches, a small notification frame appears with the words You are now x steps away from being a developer With the countdown number each next touch.
When the notice appears Developer mode has been turned on Appearing is okay. There will be a device that will require a PIN.
Producers of telephone equipment and tablets (OEM) Do not place this option in the same position, although it is done by the same operation. Below is the link to find Build Number on devices:
- Popular Android phones: Settings> About Phone> Build Number
- LG G3: Settings> About Phone> Software Information> Build Number
- HTC One (M8): Settings> About> Software Information> More> Build Number
- Xiaomi: Settings> Introduction to the phone> Number of construction copies or MIUI version. After activating you access Settings> System> Advanced> Developer options to open.
After 7 touches, the option for developers will be unlocked and can be used. When returning to the Settings interface on the device will see items Developer options At the end of the list. If clicking on users, there will be a lot of options to tweak deeper in the system.
2. Remove the developer option
The removal of the developer options can be done but not for all Android devices. The only way to do this is to restore all the set settings.
Access Settings > Apps >Settings> Clear Data. A window will show you to confirm, click OK.
This method can be applied to many Android phones and tablets.
Turning on the developer mode on Android will help technicians, or people with technology knowledge can be more customized. However, this mode should not be turned on if you do not know how to use it, otherwise it will greatly affect the system.
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I wish you success!
