Modern security updates often require a "Custom Preloader" to bypass the authentication (Auth) required by Xiaomi's servers when performing resets.
This happens when attempting to flash a preloader file that does not match the security configuration of the chip. Verify that you have not mixed up the standard Redmi 9C ( angelica ) with the NFC variant ( angelican ) or the Redmi 9 Activ.
Download the official Redmi 9C Fastboot ROM matching your region (Global, India, Europe, etc.). Extract the .tgz archive to find the images folder, which contains the stock preloader_angelica.bin file.
The (typically named preloader_angelica.bin ) is a critical component of the device's boot chain, used to initialize hardware before the main operating system loads . It is most commonly required when using the SP Flash Tool to unbrick a device, bypass Mi Account locks, or flash custom firmware on its MediaTek MT6765 (Helio G35) chipset. Key Components for Flashing redmi 9c preloader file
Click on and select the MT6765_Android_scatter.txt file from your firmware folder.
Flashing a preloader is a sensitive operation. Ensure this file matches your specific model (Angelica) to avoid hard-bricking your device. Common Troubleshooting: Not Detected? Ensure you have the MTK USB VCOM Drivers installed. EMI Error? If using Hydra Tool, remember to untick "Enable Auto Pre Dump" in the boot options to prevent "init protocol" failures. Exit Fastboot: If you get stuck in Fastboot, hold the Power Button for 10 seconds to restart.
images/ ├── preloader_angelica.bin ← Preloader file ├── lk.bin ← Little Kernel (secondary bootloader) ├── boot.img ← Kernel + ramdisk ├── recovery.img ← Stock recovery ├── system.img, vendor.img, etc. ├── secro.img ← Security partition (locks preloader behavior) Modern security updates often require a "Custom Preloader"
Allows tools like SP Flash Tool to bypass Xiaomi’s locked authorization check (Mi Auth).
This comprehensive guide explains what a preloader file is, why you need it, and how to use it safely to revive your device. What is a Redmi 9C Preloader File?
Flashing firmware can damage your device if done incorrectly. This guide is for educational purposes. Proceed at your own risk. If you're interested, I can also provide: Download the official Redmi 9C Fastboot ROM matching
Obtaining the Redmi 9C preloader file can be a challenging task, as it is not publicly available. However, there are a few ways to get hold of it:
The software will automatically populate the partition list below, including the path targeted directly at your preloader_angelica.bin file. Step 4: Flash the Preloader and Firmware
This indicates a driver conflict or a failing USB cable. Ensure LibUSB filter drivers are correctly applied to the MediaTek USB Port .
Here’s a technical write-up on the file, covering its purpose, usage, and precautions.