Note: Flashing firmware can be risky and might lead to data loss or even bricking your device if not done correctly. Make sure to follow the steps carefully and back up your important data before proceeding.

Important Notes:

1. This process will wipe all data on your device, so make sure to backup your data before proceeding.
2. Ensure your device has sufficient battery or is connected to a charger throughout the process. (at least 50%).
3. Download the correct firmware for your device model from a reliable source.
4. Download the latest version of SP Flash Tool from the official website.
5. This guide assumes you have a basic understanding of using SP Flash Tool and handling firmware flashing processes. If you’re not confident, consider seeking professional help.

Here’s a general guide to flashing Xiaomi Redmi 5 firmware using SP Flash Tool:

1. Install USB Drivers: Install the appropriate USB drivers for your Xiaomi Redmi 5 on your computer. You might find these drivers on the Xiaomi website or through third-party driver solutions.

2. Download Firmware: Download the official firmware for your Xiaomi Redmi 5 from a trusted source. Make sure it’s the correct firmware version for your device model.

3. Download SP Flash Tool: Download the latest version of SP Flash Tool from its official website.

4. Extract Files: Extract the downloaded firmware and SP Flash Tool files to separate folders on your computer.

5. Launch SP Flash Tool: Open the SP Flash Tool executable file (e.g., “flash_tool.exe”).

6. Load Scatter File: In SP Flash Tool, click on the “Choose” button in the “Scatter-loading File” section. Navigate to the extracted firmware folder and select the scatter file (*.txt). The scatter file provides instructions for SP Flash Tool to flash different parts of the firmware to the appropriate locations on the device.

7. Configure Flashing Options: Make sure that only the necessary options are selected. Typically, you’ll want to select “Download Only” or “Firmware Upgrade” mode, depending on your preferences.

8. Load Firmware Components: Click on the “Download” button in SP Flash Tool. This will open a dialog box with multiple sections. Load the firmware components (preloader, recovery, system, etc.) by clicking on their respective “Choose” buttons and selecting the corresponding files from the firmware folder.

9. Prepare the Device: Power off your Xiaomi Redmi 5. Connect the device to your computer using a USB cable while holding the appropriate button combination to boot into Download or Fastboot mode. The button combination might involve holding specific volume buttons while connecting the USB cable.

10. Start Flashing: Once the firmware components are loaded and your device is connected in Download or Fastboot mode, click the “Download” button in SP Flash Tool. The flashing process will begin, and you’ll see a progress bar.

11. Completion: Once the flashing process is complete, you’ll see a green circle with a checkmark. Disconnect your device and boot it up. The first boot might take a bit longer than usual as the system settles.

12. Factory Reset (Optional): To avoid any potential issues, perform a factory reset from the device’s recovery menu after flashing the firmware.

Remember that these instructions are based on general steps for flashing MTK-based devices. The exact steps might vary slightly based on the specific firmware and version of SP Flash Tool you’re using. So we can’t take responsibility for these instructions. Always refer to the official documentation and resources for your device and tools.