How to turn on OnePlus 3 without power button?

Turning on a OnePlus 3 without a functioning power button can be challenging, but there are several methods you can try, depending on whether the phone is completely off or in a partially active state.

How to Turn on OnePlus 3 Without a Power Button

If your OnePlus 3's power button is broken, you can still get your device to power on or restart using alternative methods such as charging, specific button combinations to enter boot modes, or, in some cases, ADB commands.

1. Turning On from a Completely Off State

These methods are designed to initiate the boot process when your phone is entirely powered down.

Charge Your Phone

Often, simply plugging a completely dead Android phone into a charger can initiate the boot sequence or display a charging screen.

1. Connect a Charger: Plug your OnePlus 3 into a wall charger using its original cable.
2. Wait: Give it some time. If the battery is completely drained, it might take a few minutes for the charging indicator to appear or for the phone to automatically turn on. Many phones are programmed to power on or at least show a charging animation once sufficient power is detected.

Boot into Recovery or Fastboot Mode

This is one of the most reliable methods for turning on an Android phone with a broken power button. You'll typically use the volume buttons in conjunction with connecting the phone to a power source.

1. Ensure Phone is Off: Make sure your phone is completely powered down.
2. Press and Hold Volume Button:
   • For Recovery Mode: Press and hold the Volume Down button.
   • For Fastboot Mode: Press and hold the Volume Up button.
3. Connect to PC/Charger: While still holding the volume button, connect your OnePlus 3 to a computer or a wall charger using a USB cable.
4. Enter Mode: Your phone should boot into either Recovery Mode (with options like "Reboot system now") or Fastboot Mode. Release the volume button once you see the respective menu.
5. Reboot System:
   • In Recovery Mode: Use the volume buttons to navigate to "Reboot system now" (or similar wording) and press the power button (if it works for selection) or the volume button (if it acts as selection in your specific recovery) to confirm. If your power button is fully non-functional, some custom recoveries might allow touch or volume up/down for selection.
   • In Fastboot Mode: You'll typically need a computer with ADB and Fastboot drivers installed. Open a command prompt or terminal on your PC and type: fastboot reboot.

2. Restarting Your Phone from a Special Menu (If Partially On)

If your OnePlus 3 is already in a state where a system or recovery menu is accessible and the touchscreen is responsive, you can use these on-screen options to restart the device. This is particularly useful if you've managed to boot into a temporary menu where the touch functionality is still active.

1. Access the Menu: If you find yourself in a special system, diagnostic, or recovery menu where the touchscreen is still functional (unlike other menus that might only respond to physical buttons).
2. Navigate to Exit/Reboot:
   • Do not select any of the other specific features within this menu.
   • Look for an option to "Exit" or go back.
3. Initiate Reboot: Once you've exited or are in the main part of the menu that allows for system control:
   • Select "Reboot" (or "Restart").
   • Confirm your choice by clicking "Reboot" a second time if prompted. This action will restart your phone, potentially bringing it back to the normal Android operating system.

3. Using ADB Commands (Advanced)

This method requires your phone to have USB Debugging enabled before the power button broke and for it to be connected to a computer with ADB (Android Debug Bridge) installed.

1. Connect to PC: Connect your OnePlus 3 to your computer via a USB cable.
2. Open Command Prompt/Terminal: On your computer, open a command prompt (Windows) or terminal (macOS/Linux).
3. Verify Connection: Type adb devices and press Enter. You should see your device listed, indicating a successful ADB connection.
4. Reboot Phone: Type adb reboot and press Enter. This command will instruct your phone to restart.
5. Simulate Power Button (less common for off state): For specific scenarios where the phone is on but the screen is off, you might try adb shell input keyevent 26 to simulate a power button press. However, adb reboot is more direct for restarting.

If none of these software-based solutions work, it's likely a hardware issue that may require professional repair or replacement of the power button component.