In the Recovery menu, use the Volume keys again to find and select .

A: No, simply entering fastboot mode does not delete any data. However, many of the actions you perform from within fastboot mode, such as unlocking the bootloader or flashing new firmware, will. Always back up your data before performing major operations.

The Asus ROG Phone 3 features two USB-C ports. For data transfer and Fastboot commands, always use the rather than the bottom port. Connect a high-quality USB-C cable to this side port and plug it into your computer. Step 3: Press the Button Combination Press and hold the Volume Up button. While holding Volume Up, press and hold the Power button.

If you entered Fastboot Mode by accident or have finished modifying your device, returning to the normal Android OS is simple:

Use the to navigate to the Recovery mode option and confirm with the Power button.

If your phone won't exit the menu, use the to scroll through the options at the top of the screen until you see START or REBOOT . Press the Power button to select it. The phone will perform a standard reboot into the Android system. Alternatively, hold down the Power button for 10–15 seconds to force a restart. Summary of Fastboot Best Practices

Fastboot mode is a powerful diagnostic tool built into the Asus ROG Phone 3. It allows users to modify the Android system architecture directly from a computer. Whether you need to flash a custom recovery, unlock your bootloader, or unbrick a software-damaged device, entering Fastboot mode is the first critical step.

Use these to scroll up and down through the available modes (e.g., Normal Boot, Recovery Mode, Restart Bootloader, Power Off).

This is a security feature and an easy fix. Simply unplug your USB cable, plug it back in, and check your phone's screen. A pop-up requesting permission for USB debugging should appear. Tap "Always allow from this computer" and then "Allow". If you don't see it, disable and re-enable USB debugging in Developer Options.

To open fastboot mode on the ASUS ROG Phone 3 Go to product viewer dialog for this item.

adb reboot bootloader

Now that you’ve successfully opened Fastboot mode on your ASUS ROG Phone 3, what next? Here are common commands (type these in PC terminal after connecting via USB):

This method is useful if your physical buttons are non-functional or if you are already connected to a PC for development work.

Before your PC can send commands to your phone, you need to enable a hidden developer feature called USB Debugging.