In computer Device Manager, ensure the phone is recognized under "Android Phone" -> "Android Bootloader Interface" when in fastboot. How to Exit Fastboot Mode
However, there is a well-known issue with the Oppo A37: to enter Fastboot. Oppo has a different, proprietary approach.
Some stock ROM builds may not support bootloader mode at all. If you have a newer build (such as A37fEX_11_A.22_170522), downgrading to an earlier version like A37fEX_11_A.07_160614 might restore Fastboot access. One user on the XDA Developers forum noted that after trying three different methods without success, they suspected their stock ROM might be the cause.
Press and hold the button and the Power Button simultaneously. Step 3: Release on Logo how to open fastboot mode on oppo a37 better
Enabling Fastboot mode on your Oppo A37 can be a bit tricky, but with this step-by-step guide, you should be able to unlock the full potential of your device. Remember to exercise caution when modifying your device, and always follow proper procedures to avoid any issues. If you encounter any problems during the process, feel free to leave a comment below.
: Your device will automatically restart into Fastboot mode. Exiting Fastboot Mode
Try every key combination systematically: In computer Device Manager, ensure the phone is
: Press and hold the Power and Volume Up buttons simultaneously for several seconds .
Note: Depending on your specific regional variant (such as the OPPO A37f, A37fw, or A37t), some firmware versions route Fastboot options directly inside the recovery menu. If the combo above boots you into the OPPO Recovery Menu instead, select and look for the Reboot to Bootloader or Fastboot option. Method 2: The ADB Command Method (Safest & Most Reliable)
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. Some stock ROM builds may not support bootloader mode at all
Use your thumb and index finger to press the Volume Down key and the Power key at the same time.
You've tried everything, but the phone just boots normally. Here's how to handle the most common issues:
: This is typically caused by a missing Google USB Driver or an outdated MediaTek/Qualcomm OEM driver. Update your device drivers via Windows Device Manager.
