: Open a terminal or command prompt in your Platform Tools folder and type: adb reboot bootloader
If your physical buttons are faulty or you are already connected to a PC for development, use Android Debug Bridge (ADB).
: In Settings > System > Developer Options , toggle on USB Debugging . how+to+open+fastboot+mode+on+oppo+a74+best
: Connect your phone to a computer with a stable USB cable.
: Simultaneously press and hold the Power button and the Volume Up button . : Open a terminal or command prompt in
: Use the Volume keys to scroll through options and the Power button to select or confirm. Method 2: ADB Commands (For Advanced Users)
: Your device will automatically restart into Fastboot Mode. Why Use Fastboot Mode? : Simultaneously press and hold the Power button
: When the OPPO logo appears, continue holding until the Fastboot Mode screen is displayed.
This is the quickest way to enter Fastboot Mode without using a computer.