[Xiaomi Redmi 13C (4G) / Poco C65] mvikrant97:
Here is a simple and explanatory tutorial on how to flash the Redmi 13C 4G using SP Flash Tool.

When flashing firmware, especially the preloader file, it's important to understand the risks involved. Flashing the preloader incorrectly can render your device completely unusable (bricked).

Disclaimer

Flashing the preloader file is a critical operation that can have serious consequences if not done correctly. By proceeding with flashing the preloader or any other firmware files, you acknowledge and accept the following:

Risk of Bricking: Flashing the preloader file incorrectly can permanently damage your device, making it unresponsive and unable to boot.

Warranty Void: Flashing custom or stock firmware might void your device's warranty. Ensure you understand your warranty terms before proceeding.

Things you must know:

a. This is very crucial part of the flashing.

During my tests with the device I found out that Xiaomi has completely disabled BROM mode on the device and has enabled Preloader mode like the good old days but there is a catch, even with Preloader mode the device cannot be just simply flashed with SP Flash tool as the Preloader mode requires authorisation from Xiaomi Server to be flashed so in order to flash the device we first need to flash the Engineering preloader file on to the device first to disable the Preloader auth. You need to have bootloader unlocked in order to flash the engineering preloader using fastboot mode or else only authorised flash can be used to flash the device.

b. Firmware upgrade, firmware downgrade, switching between HyperOS and MIUI can be done easily.

Prerequisites - Download Link​

Spoiler content hidden.

SP Flash Tool V5.2136	MTK Preloader Drivers	Firmware Global 14.0.9	Factory Preloader_Gale

SP Flash Tool: Download and install SP Flash Tool on your computer.

MTK USB Drivers: Install the necessary MediaTek (MTK) USB drivers on your computer.

Stock Firmware: Download the correct stock firmware for the Redmi 13C 4G.

USB Cable: Use a good quality USB cable.

Backup: Ensure you have a backup of your important data.

Step-by-Step Guide​

Step 1: Flash the factory preloader file using fastboot mode. [Your device need to have an unlocked bootloader]​

If you have not unlocked the bootloader then please visit this post below to learn how to do it >> How to Unlock Bootloader on Redmi 13C

Power Off Your Device:

Ensure your phone is completely powered off.

Press and Hold Volume Down and Power Button:

Simultaneously press and hold the Volume Down button and the Power button.

Wait for Fastboot Screen:

Keep holding both buttons until you see the Fastboot logo on the screen. This typically takes a few seconds.

Once you see the Fastboot logo, your device is in Fastboot mode. You can now connect your Redmi 13C to your computer for flashing firmware or performing other operations using Fastboot commands.

Now flash the attached preloader file above using fastboot command

Command >> fastboot flash preloader gale_factory.bin

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Command >> fastboot reboot

Your device will boot after this command. Follow the steps below.

Step 1: Install MTK USB Drivers​

Download the MTK USB drivers from the link above.

Extract the downloaded drivers to a convenient location on your computer.

Install the drivers by running the installer and following the on-screen instructions.

After installation, restart your computer.

Step 2: Download and Extract SP Flash Tool​

Download the SP Flash Tool from the link given above.

Extract the downloaded archive to a convenient location on your computer.

Step 3: Download and Extract Stock Firmware​

Download the stock firmware specific to Redmi 13C 4G.

Extract the firmware zip file to a convenient location on your computer.

Important Notes: I have tested the following firmware on my Redmi 13C 4G Indian variant and everythng from firmware upgrade, downgrade whether it is MIUI or Hyper OS. It just works absolutlely fine without any problems.

HyperOS

V816.0.1.0.UGPMIXM - Global

V816.0.2.0.UGPINXM - Indian

V816.0.3.0.UGPRUXM - Russian

V816.0.2.0.UGPTWXM - China	MIUI

V14.0.9.0.TGPMIXM - Global

V14.0.8.0.TGPMIXM - Global

V14.0.7.0.TGPMIXM - Global

V14.0.6.0.TGPMIXM - Global

Step 4: Load Firmware into SP Flash Tool​

Open SP Flash Tool:

Navigate to the extracted SP Flash Tool folder and run flash_tool.exe.

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Select the Download-Agent Redmi-13C-DA.bin from SP Flash Tool Folder.

Select the Scatter-loading FileMT6768_Android_scatter.xml from the images folder.

Select the Authentication File auth_sv5.auth file from the images folder.

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Select Download Only and then uncheck the preloader from the list as shown below.

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Step 5: Flashing your phone.​

Turn Off Your Phone:

Power off your Redmi 13C 4G.

Connect to Computer:

Press and hold the Volume Down button and power button together and connect your phone to the computer using the USB cable.

SP Flash Tool should recognize your device and start flashing the device.

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Step 7: Disconnect and Reboot​

Disconnect the Device:

Unplug your Redmi 13C 4G from the computer.

Power On the Device:

Turn on your phone. The first boot might take a few minutes.

If it does not turns on then press and hold all the buttons on the phone together to make it boot.