The Xiaomi Mi 4i runs on Android 5.0.2 Lollipop OS out of the box. Basically, enabling USB Debugging Mode on your Xiaomi Mi 4i should be similar to any other device running the same OS. Follow below given steps to know how to do the same.
Enable Developer Options in Xiaomi Mi 4i
Before you can enable USB Debugging on your device, you have to enable Developer Options in it. Developer Options comes disabled by default and you have to enable it manually. Here is how to do the same.
Step 1: Unlock your Xiaomi Mi 4i.
Step 2: from Apps, go to Settings.
Step 3: Under Settings screen, scroll down to the bottom of the page and find About Phone.
Step 4: Tap on About Phone to open it.
Step 5: Under About Phone, you will see MIUI Version.
Step 6: Now you have to tap 7 times on MIUI Version in a row to enable Developer Options.
After 7 taps you will see a message notifying, ” You are now a Developer”. That’s it. Follow next set steps to enable USB Debugging on Xiaomi Mi 4i.
Enable USB Debugging Mode on Xiaomi Mi 4i
Step 1: From Apps, tap on Settings.
Step 2: Under Settings, scroll down to the bottom of the page and tap on Additional Settings and then on Developer Options.
Step 3: Under Developer Options, you will see Enable USB Debugging option. Enable it.
That’s All! You have successfully enabled, USb Debugging on Xiaomi Mi 4i.