[Phone Powered Off] ---> Hold (Volume Up + Power) ---> Release on Fastboot Screen Execution Steps
If connected to a PC, type the following command: fastboot reboot Troubleshooting: Oppo A37 Fastboot Issues
Press and hold + Power button together.
Ensure Oppo USB Drivers are installed on your computer.
This is the most reliable way to check if your specific Oppo A37 firmware variant supports Fastboot. Most will support it, but you should test. how to open fastboot mode on oppo a37 verified
: Open a command prompt or terminal on your PC and enter the following command: adb reboot bootloader Verification : The device will restart directly into Fastboot mode. Key Tips for OPPO A37 Flash with Fastboot - Android Open Source Project
This usually occurs if the Volume Up button was released too early or if the buttons weren't pressed perfectly simultaneously. [Phone Powered Off] ---> Hold (Volume Up +
This method requires a computer and uses ADB (Android Debug Bridge) to issue a reboot command to the phone. Like the key combination method, community reports suggest that standard ADB commands are often ignored by the Oppo A37f bootloader and result in a normal reboot.