Connect your Oppo A37 to the PC using your USB cable. A prompt will appear on your phone screen asking to "Allow USB debugging." Check the box for "Always allow from this computer" and tap . Step 4: Execute the Command Open the folder where you extracted the ADB tools.

: Simultaneously press and hold the Volume Up button and the Power button .

The most reliable method to enter Fastboot Mode on the Oppo A37 involves a specific sequence of physical button presses. This method is verified for the standard ColorOS software that ships with the device.

Keep holding Volume Up until you see a — that’s Fastboot mode .

The OPPO A37 might be a classic, but it’s far from forgotten. Whether you’re looking to unlock the bootloader, flash a custom recovery, or revive a soft-bricked device, is your golden ticket. It’s like the "engineering backdoor" to your phone’s soul.

fastboot devices

Choose the method that best fits your situation and comfort level with technical steps.

Fastboot mode is a powerful diagnostic tool designed for Android devices, including the Oppo A37 (Oppo A37f/A37fw)