Developer options can cause a red border on the screen, errors when connecting to computers, or other problems. Use these steps to turn on/off developer options on the T-Mobile REVVL PLUS. It is recommended to turn them off.
- From any home screen, tap Apps > Settings > About phone.
- Tap Build number 5 times to become a developer.
- From any home screen, tap Apps > Settings > Developer options.
- Tap the On / Off slider to turn off.