Realme 9 RMX3521 Firmware Flash File (Stock ROM)

Realme 9 was launched in India with a 6.4-inch Super AMOLED display and a 90Hz refresh rate. It is powered by a Snapdragon 680 SoC, paired with up to 8GB of RAM, and sports a triple camera setup at the rear with a 108 MP primary sensor, an 8 MP ultra-wide sensor, and a 2 MP macro camera.

On this page, we will guide you on how to download and install the official firmware file on Realme 9 RMX3521. This tutorial is easy to follow. Realme 9 is powered by a Qualcomm Snapdragon 680 4G processor powered by Android 11.0 under Realme UI 2.0.

If you are someone who is facing software issues such as WiFi or Bluetooth issues, lag, boot loop, or hard brick, you can fix the device by following this tutorial. Using the firmware file lets you bypass FRP lock, pattern lock, downgrade, or upgrade, and you can fix most software glitches by flashing the stock firmware.

Realme 9 RMX3521 Firmware Flash File (Stock ROM)

Advantages of Installing Stock ROM

Here are some of the advantages of installing firmware files on your Realme 9 RMX3521:

  • If your device is dead, you can unbrick using the Stock ROM file
  • You can fix or repair the IMEI on your device using DB files from Stock ROM
  • Remove any malware or Adwares from Realme 9
  • You can fix the boot loop issue on Realme 9
  • Fix Unfortunately, the app has stopped errors on Realme 9
  • Fix Network related issue
  • Patch Boot image to Root using Magisk: Mediatek Guide or Spreadtrum Guide
  • You can unroot Realme 9
  • To Reset or Remove FRP on your device: Mediatek FRP Guide or Spreadtrum FRP Guide
  • Restore Realme 9 back to Factory State

Firmware Details

  • Device Name: Realme 9 RMX3521
  • Gapps File: Included
  • Tool Supported: Qualcomm Flash Tool
  • Processor: Qualcomm Snapdragon 680 4G
  • Android OS: 11.0

Steps to Install Stock Firmware on Realme 9 RMX3521

Now, before we get straight to the Steps to Install Stock Firmware on Realme 9 RMX3521, let us take a look at some of the prerequisites.


Download Flash Files

Software Update Download Link
RMX3521_EX_11_C.13 Download (Paid Link)
RMX3521_EX_11_C.10 / RMX3521_11_C.10 Download
RMX3521_11_A.28 Download
RMX3521_11_A.27 Download
RMX3521_11_A.21 Download
RMX3521_11_A.18 Download
RMX3521_11_A.17 Download
RMX3521_11_A.16 Download
RMX3521_11_A.15 Download
RMX3521_11_A.14 Download
RMX3521_11_A.07 Download

Method 1: Instructions to Install via Recovery:

First, you can try the official method to install the OTA stock ROM update via Realme device recovery.

Method 2: Instructions to Install via QFIL Tool:

Download the Qualcomm Flash image loader tool and USB Drivers on your PC. Follow the below link to install the firmware using the QFIL tool

Guide to Install Stock ROM using QFIL Tool

Method 3: Instructions to Install via MSM Download tool:

  1. Download the MSM Download tool, firmware, and drivers on your PC.
  2. Now install the USB drivers
  3. Place the MSM download tool and firmware in the same folder
  4. Open the MSM download tool and connect your device to PC/Laptop
  5. Once you connect, it will automatically load the firmware; if not, select it manually.
  6. Click on the start button and wait patiently to complete the installation process.
  7. Once it is done! Remove your device from the PC. That’s it!

So that’s it guys, this was our take on How to flash the firmware file on Realme 9. We hope that you found this post useful. Let us know what you guys think about it in the comments section down below.

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