Guide: How to Install Stock ROM on {{AndroidDeviceModel}} using Fastboot Mode

Note: Before proceeding, make sure to backup all your important data as this process will erase all the data on your device.

Requirements:
1. {{AndroidDeviceModel}} device with at least 50% battery level
2. USB cable
3. Computer with {{DriverSoftwareName}} driver software installed
4. {{StockROMName}} ROM file
5. {{FastbootSoftwareVersion}} Fastboot software installed
6. Internet connection for downloading required files

Steps:

1. Enable Developer options on your {{AndroidDeviceModel}} device. Go to Settings > About phone > Tap on "Build number" 7 times to unlock Developer options.

2. Enable USB debugging in Developer options. Go to Settings > Developer options > Enable USB debugging.

3. Connect your {{AndroidDeviceModel}} device to your computer using the USB cable.

4. Install the {{DriverSoftwareName}} driver software on your computer. You can download it from the official {{DriverSoftwareName}} website and follow the installation instructions.

5. Open the Fastboot software on your computer. If you haven't installed it yet, download {{FastbootSoftwareVersion}} from the official website and follow the installation instructions.

6. Download the {{StockROMName}} ROM file for your {{AndroidDeviceModel}} from a reliable source. Make sure it is compatible with your device model and version.

7. Extract the downloaded {{StockROMName}} ROM file to a folder on your computer.

8. Power off your {{AndroidDeviceModel}} device.

9. Boot your device into Fastboot mode by pressing and holding the Power and Volume Down buttons simultaneously until the Fastboot mode screen appears.

10. Connect your {{AndroidDeviceModel}} device to your computer again using the USB cable.

11. On your computer, navigate to the folder where you extracted the {{StockROMName}} ROM file.

12. Open a command prompt or terminal window on your computer and navigate to the folder where the Fastboot software is installed.

13. Type the following command to check if your device is detected by Fastboot:
```
fastboot devices
```
If your device is listed, you are ready to proceed. If not, make sure you have installed the {{DriverSoftwareName}} driver software correctly and try again.

14. Flash the {{StockROMName}} ROM using the following command:
```
fastboot flash rom {path to the extracted ROM file}
```
Replace "{path to the extracted ROM file}" with the actual path to the extracted {{StockROMName}} ROM file on your computer.

15. Wait for the flashing process to complete. It may take a few minutes.

16. Once the flashing process is complete, type the following command to reboot your device:
```
fastboot reboot
```

17. Your {{AndroidDeviceModel}} device will now boot up with the newly installed {{StockROMName}} ROM.

Troubleshooting Tips:

1. If your device is not detected by Fastboot, make sure you have installed the {{DriverSoftwareName}} driver software correctly. Try reinstalling the driver software and restart your computer.

2. If the flashing process fails or gets stuck at any point, try the following:
- Make sure you have downloaded the correct {{StockROMName}} ROM file for your device.
- Check the extracted ROM file for any missing or damaged files.
- Restart your computer and try again.
- If the issue persists, search online for specific troubleshooting steps related to your device model and ROM.

3. If your device doesn't boot up after flashing the {{StockROMName}} ROM, try performing a factory reset. This can be done by booting into Recovery mode and selecting the "Wipe data/factory reset" option. Note that this will erase all your data.

4. If you encounter any other issues during the installation process, refer to the official documentation for your {{AndroidDeviceModel}} device or seek assistance from relevant online forums and communities.

Congratulations! You have successfully installed the {{StockROMName}} ROM on your {{AndroidDeviceModel}} using Fastboot mode.