: Press and hold the Power Button , then swipe to power off the device completely. Wait 10 seconds.

Fastboot is a low‑level protocol used to communicate with the Android bootloader while the device is powered off. Unlike Recovery mode (which works with update packages stored on an SD card), Fastboot enables “flashing”—writing system images, custom recoveries, and boot images directly to the phone’s partitions via a USB connection.

Install the correct Fastboot drivers manually:

Cheap third-party charging cables often lack stable data transfer lines. Always use the original Oppo cable or a high-quality certified alternative to prevent connection drops during critical system flashes.

Make sure you enabled “OEM Unlocking” in Developer Options beforehand. Then:

Check for hardware issues; a stuck Volume Down button can cause the device to boot into Recovery Mode automatically. Are you entering Fastboot mode to unlock your bootloader flash a new firmware

: To exit and return to normal mode, select Reboot from the menu or hold the Power button for about 10 seconds until the device restarts .

To enter Fastboot mode on your (including the variants), you have two primary options: using a physical button combination or using a computer with ADB commands. Method 1: Physical Button Combination

This guide provides a clear and concise walkthrough of enabling Fastboot mode on the Oppo A37. With some basic technical knowledge and caution, you can unlock the full potential of your device.