How To Open Fastboot Mode On Oppo A37 Better -

If you are stuck in a "Qualcomm HS-USB QDLoader 9008" mode (black screen but PC makes a connection sound), your phone may be in an emergency download mode. To exit this, simply hold the Power button for 15 seconds.

Here's a step-by-step guide to access fastboot mode on Oppo A37: how to open fastboot mode on oppo a37 better

If your physical buttons are not working correctly, you can use a computer to trigger the mode: Enable Debugging Settings > About Phone If you are stuck in a "Qualcomm HS-USB