OPPO A37fw Rooting Guide

FOR OPPO A37FW ONLY (NOT A37 AND NOT A37F AND NOT FOR ANY DEVICES)

I DO NOT OWN ANYTHING AND THIS GUIDE IS JUST MY EXPERIENCE IN ROOTING AND FOR THOSE WHO HAD HARD TIME TO ROOT THEIR A37FW DEVICES LIKE ME, I AM NOT RESPONSIBLE TO ANY DAMAGE YOU GOT, SO TAKE IT AS YOUR OWN RISK.

System Requirements

• OS: Windows 10 or 11
• Disabled Driver Signature Enforcement

1. Preparing

• USB Drivers: Qualcomm or Quectel
• QFIL/QPST Use the latest version v2.7.496
• Stock ROM Use the A37fEX_11_A.07_160614 build number(16xxxx is rooting possible)
• vibrateonly fix You need this promise because we need to intentionally flash the wrong firmware to downgrade and this is the fix

They have their own guide in the links to install, please follow them correctly.

2. Downgrading

As you can see, i am using QFIL instead of Msm8x39DownloadTool.exe because it's not detecting my device.

1. Extract the Stock ROM and the vibrateonly fix and then start QFIL as an administrator.
2. Connect your device(A37FW) in EDL mode(just adb reboot edl it) to your PC and it will show the Connected COM Port in QFIL.
   • If not showing up just click the Select Existing Port button and click the COM PORT showed in the textbox and click OK.
   • If not showing up in Select port window, check the checkbox Show Non QDLoader\DIAG Port to show the COM PORT and click the COM PORT showed and click OK.
3. In your QFIL, choose the Flat Build Build Type.
4. In your QFIL, click Browse button and then load the prog_emmc_firehose_8936.mbn.
5. In your QFIL, click Load XML... button and then load the rawprogram0_MSM_15399.xml and patch0.xml.
6. click Download button and it will show a blue progress bar and scrolling text in the textbox it means the QFIL are currently flashing your device with a stock ROM and do not disconnect your device, you need to see in textbox the Finished Download or Succeeded something like that. Disconnect the cable if Finished Download or Succeeded.
7. As you can see and feel, it's just vibrate but don't worry! You need the vibrateonly fix. Copy the content of the vibrateonly fix and then paste it inside to the directory where your stock ROM located and then click the Replace the file the destination.
8. This is the critical part, open the back cover of your device and then remove the connection of the battery, press and hold the volume + and - buttons(BOTH) and then reconnect your usb cable to your PC and it will show up again in the QFIL your COM PORT.
9. In your QFIL, choose the Flat Build Build Type.
10. In your QFIL, click Browse button and then load the prog_emmc_firehose_8916.mbn(NOT prog_emmc_firehose_8936.mbn).
11. In your QFIL, click Load XML... button and then load the rawprogram0.xml(NOT rawprogram0_MSM_15399.xml) and patch0.xml.
12. click Download button and it will show a blue progress bar and scrolling text in the textbox it means the QFIL are currently flashing your device with patches and do not disconnect your device, you need to see in textbox the Finished Download or Succeeded something like that. Disconnect the cable if Finished Download or Succeeded. You will see and feel the vibration is gone and it fixed!
13. Long press the power button(5-10 seconds) and then boom, downgraded successfully! 🥳

3. Rooting

1. Download the latest kingo-root app then click One Click Root and then wait for the progress until root succeeded, it's 100% success rate on my experience.✔️

Rebooting into EDL Mode

• Install ADB Drivers
• Turn on Developer Options(I know you know this 😜) and turn on the USB Debugging.

1. Connect the device to your PC and run adb devices and it will show up your device's serial number.
   • If shows an unauthorized, check your device if needs to agree/accept or permit something like that to access your USB Debugging.
2. Run adb reboot edl then your screen will show a black screen only it means EDL Mode!

Unlocking Bootloader

Oppo a37fw bootloader is already unlocked when you follow this guide so you can modify your system as much as you want(flash twrp, custom roms, custom kernel and more).

Credits

• All the Links I put on this guide.
• OPPO A37/A37f/A37fw Official Community
• XDA Forum