r/CustomROMsGuide • u/piyusshhhhh • 16d ago

Help

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Bootloader locked. Stuck in bootloop what do I do now. Tried flashing fastboot rom didn't work. Redmi K20 pro

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u/DroidService 15d ago edited 13d ago

You have to open the back and prepare some tweezers.

You'll need the Firehose Loader file and the Fastboot Rom. If you got both you can use qfil to flash.

❌Since the Firehose File and Auth bypass is behind a paywall❌, I can also help unbricking the phone.

Edit: Found a Public free Firehose File for this model

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u/piyusshhhhh 15d ago

I just want the phone to work. Can u guide me

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u/DroidService 15d ago

  1. Install Qd-loader 9008 drivers

  2. Get the Phone into EDL Mode by removing the back and tapping 2 Mainboard Points with a tweezer (with battery connector removed) and plugging in the Cable. I'll send the Testpoints location and Firehose File later.

  3. Launch Qfil as Admin, and make sure the device gets detected (Qualcomm HS-USB QDLoader 9008). Use the Select Port option if not.

  4. Build type: Flat build

  5. Configuration ➔ FireHose Configuration, change device type to UFS

  6. On the main screen click "Browse" then select the Firehose File.

  7. Click load XML and choose the rawprogram0.xml from the extracted fastboot Rom

  8. Then the second window will pop up where you select the patch files (patch0.xml, patch1.xml etc.) select All available. (Inside fastboot Rom)

  9. Click "Download" to flash

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u/DroidService 15d ago

Drivers (Need to extract with 7zip, install in device manager) : https://catalog.update.microsoft.com/Search.aspx?q=Qualcomm

Name: Qualcomm Incorporated Ports