If you are the owner of the Oncell R2 and you want to know; how to enable USB debugging on your Oncell R2. Here we will guide you how to enable USB debugging mode on your R2. using Developer Options, you can easily customize animations, background processes, USB cable settings, etc.
Quick Steps to enable USB debugging Mode in your Oncell R2
First of all, go to Settings your Oncell R2
Now, you will see Settings option >>>> select About phone then choose >>>> Software Information.
Now, Scroll down your screen and find the Build Number your Oncell R2, now tap the Build number 7 to 10 times until you will see a pop-up message that says "Developer mode has been enabled". (see attached below image)
After 10 minutes, you will see a popup message "you are now a developer" on your Oncell R2
Now, you will see the Developer options menu under Settings via Tap on the Back button.
Then, You will click on Developer options. Slide the "Developer Options" button to "On".
Then scroll down your phone screen and turn on "USB debugging". You will see the messages "Allow USB Debugging", click the "OK".
Now, you have successfully enabled USB debugging mode on Oncell R2.
Note: We are not responsible for any damage to your Oncell R2 while doing anything with USB Debugging. You must create a backup of all files and save them in a safe location.