How To Boot into Fastboot Mode on the OnePlus 9

OnePlus smartphones, such as the OnePlus 9 and 9 Pro, are popular among power users who enjoy customizing their devices with custom ROMs and kernels. To perform these customizations, it is essential to know how to enter Fastboot and Recovery Mode on your OnePlus device. In this guide, we will explore different methods to access these modes and provide step-by-step instructions to help you navigate through the process.

What is Fastboot?

Fastboot is a mode that allows you to interact with your OnePlus device’s bootloader without fully loading the operating system. It enables you to write data to the phone’s internal storage, such as custom ROMs, custom kernels, and recoveries. To take full advantage of Fastboot, you need to unlock the bootloader of your OnePlus device. By default, OnePlus phones come with a locked bootloader, but it can be easily unlocked through Fastboot.

What is Recovery Mode?

Recovery mode is a crucial feature available on all Android devices, including OnePlus smartphones. It is a standalone software that allows users to access various functions without booting the entire operating system. Recovery mode is particularly useful when the firmware or the OS of the phone is corrupted, as it provides options to perform system updates, factory resets, and install custom firmware.

Method 1: Enter Fastboot and Recovery Mode through Advanced Reboot

The easiest and fastest way to enter Fastboot and Recovery Mode on your OnePlus 9 or 9 Pro is by using OnePlus’ Advanced Reboot Menu. This menu is designed to simplify the process for power users who frequently switch between different modes on their devices.

1. Open the Settings menu on your OnePlus 9 or 9 Pro.
2. Go to System and tap on Developer Options. If you don’t see Developer Options, go to About Phone and tap on Build Number seven times to enable Developer Options.
3. Scroll down until you find Advanced Reboot and enable it by tapping the toggle next to it.
4. Now, press and hold the Power button on your device. The Power menu will appear on the right side of the screen.
5. The Power menu includes options like Power off, Restart, Recovery, Bootloader, and Screenshot.
6. Tap on Recovery to enter recovery mode or tap on Bootloader to boot into Fastboot.

If this method works for you, you can stop here. However, if you are running a custom ROM or don’t have the Advanced Reboot option, proceed to the next method.

Method 2: Enter Fastboot and Recovery Mode using Physical Keys

If the first method doesn’t work or you don’t have access to the Advanced Reboot option, you can use the physical buttons on your OnePlus 9 or 9 Pro to enter Fastboot and Recovery Mode.

1. Press and hold the Power button on your device and select Power off to turn it off completely.
2. Once the phone is off, you have two options:

• To enter recovery mode, press and hold the Volume Down and Power buttons simultaneously.
• To enter Fastboot mode, press and hold the Volume Up and Power buttons simultaneously.

If the previous method didn’t work for you or you are experiencing issues with the physical buttons, proceed to the next method.

Method 3: Enter Fastboot and Recovery Mode using ADB commands

If you are running a custom ROM or your physical buttons are not functioning correctly, you can use ADB (Android Debug Bridge) commands to enter Fastboot and Recovery Mode on your OnePlus 9 or 9 Pro. This method requires you to connect your phone to a computer with ADB installed.

1. Connect your OnePlus device to your computer using a USB cable.
2. Open CMD or PowerShell on your computer.
3. Run the following command to ensure that your computer recognizes your OnePlus 9 or 9 Pro:

adb devices

You should see your device listed in the output.

Now, depending on the mode you want to enter, use the following commands:

To boot your OnePlus device into Fastboot Mode, use the command:

adb reboot bootloader

To boot your OnePlus device into Recovery Mode, use the command:

Experiencing difficulties with your Device, check out our “How To” page on how to resolve some of these issues.