Vivo Y91i Flash File PD1818GF Stock Firmware (Updated 2024)

In this comprehensive guide, we will walk you through the process of flashing the Vivo Y91i Flash File (Y91i PD1818GF and PD1818HF) models with the official stock firmware. 

Whether you want to upgrade or downgrade your device’s operating system, fix IMEI related issues, or resolve software glitches, flashing the Vivo Y91i with the correct firmware can be a game-changer. 

So, let’s dive in and explore the step-by-step instructions to flash the Vivo Y91i PD1818GF and PD1818HF using the official Vivo Y91i Flash File.

Download and Install the Vivo Y91i Flash File to Restore Your Phone

The Vivo Y91i flash file, also known as the stock firmware or ROM, is an essential software package for Vivo Y91i PD1818GF and PD1818HF devices. 

This firmware contains the operating system, device drivers, and other necessary files that control the functioning of the smartphone. 

By flashing the Vivo Y91i with the official firmware, users can either upgrade to a newer version of the operating system or revert to a previous one.

Benefits of Flashing (Vivo Y91i Flash File)

Flashing the Vivo Y91i with the correct firmware brings several benefits to the table. Here are the key advantages of flashing:

1. Operating System Upgrade:

Vivo Y91i Flash File allows users to upgrade their device to the latest version of the operating system. This brings new features, improved performance, and enhanced security to the smartphone.

2. Operating System Downgrade:

In case users encounter compatibility issues or performance problems with the latest firmware, flashing enables them to downgrade to a previous version of the operating system that was more stable or better suited to their needs.

3. IMEI-related Issues: 

Flashing can help resolve IMEI-related issues, such as invalid IMEI or IMEI null errors. By flashing the Vivo Y91i with the correct firmware, users can restore the IMEI number and ensure proper network connectivity.

4. Software Glitches:

If the device is experiencing software glitches, random reboots, or app crashes, flashing the Vivo Y91i can help resolve these issues by reinstalling a fresh copy of the operating system.

5. Bootloop Issues:

A bootloop occurs when the device gets stuck in a continuous boot cycle. Flashing the Vivo Y91i with the stock firmware can fix bootloop issues and bring the device back to normal operation.

Preparing for the Flashing Process

Before diving into the flashing process, there are a few important steps to follow to ensure a smooth experience. Here’s what you need to do:

1. Installing MTK Driver

To connect your Vivo Y91i to the computer and enable communication during the flashing process, you need to install the MTK Driver. Follow these steps to install the driver:

  1. Download the MTK Driver from the official website.
  2. Extract the downloaded file and run the setup.exe file.
  3. Follow the on-screen instructions to complete the installation process.
  4. Once the installation is complete, restart your computer to apply the changes.

2. Downloading the Flash Files and Tools

To flash the Vivo Y91i PD1818GF and PD1818HF, you need to download the necessary flash files and tools. Here are the links to download the official flash files:

Additionally, you will need the following tools:

Download the flash files and tools to your computer and extract them to a convenient location for easy access during the flashing process.

Flashing Vivo Y91i PD1818GF

Now, let’s explore the step-by-step process to flash the Vivo Y91i Flash File using the SP Flash Tool.

Using SP Flash Tool

SP Flash Tool is a widely used tool for flashing MediaTek devices. It allows users to flash the firmware, format the device, and perform various other tasks. Here’s how to use SP Flash Tool:

  • Launch the SP Flash Tool on your computer by double-clicking on the Flash_tool.exe file.
  • In the SP Flash Tool interface, click on Scatter-Loading on the right side of the tool.
  • Navigate to the folder where you extracted the Vivo Y91i PD1818GF flash files and select the Android_scatter.txt file.
  • After loading the scatter file, click on the Download button to start the flashing process.
  • Power off your Vivo Y91i and connect it to your computer using a USB cable.
  • Press the Volume Down or Volume Up key while connecting the device to enter the flashing mode. If this doesn’t work, connect the device without pressing any key.
  • The flashing process will begin, and you will see a progress bar on the SP Flash Tool interface.
  • Once the flashing is complete, you will see a Download OK message, indicating a successful flash.
  • Disconnect your Vivo Y91i from the computer and power it on. You have successfully flashed the Vivo Y91i PD1818GF.

For a more detailed step-by-step guide with screenshots, refer to the official tutorial provided by Vivo.

Important Notes:

Before proceeding with the flashing process, there are a few important considerations to keep in mind.

1. Backup Your Data

Flashing the Vivo Y91i will erase all data on your device. It’s crucial to take a backup of your important files, contacts, and other data to avoid permanent loss. You can use various backup methods, such as cloud storage, external storage, or third-party backup apps.

2. Unticking Preloader.bin Option

It is strongly advised not to flash the preloader.bin file on Vivo devices, as it can potentially brick the device. To prevent this, untick the preloader option in the SP Flash Tool before flashing the firmware.

Troubleshooting Tips- Vivo Y91i Flash File

During the flashing process, you may encounter some common issues. Here are a few troubleshooting tips to help you overcome them:

  • Device Not Detected: Ensure that you have installed the MTK Driver correctly and that the USB cable is working properly. Try using a different USB cable or port.
  • Flashing Stuck: If the flashing process gets stuck at a certain percentage, disconnect the device, close the SP Flash Tool, and start the process again.
  • Bootloop After Flashing: Perform a factory reset by entering the recovery mode to resolve bootloop issues. Consult the device’s user manual or the official Vivo website for the specific key combination to enter recovery mode.

If you encounter any other issues, refer to the official Vivo support channels or seek assistance from a professional technician.

Additional Resources

For official links, references, and further support, visit the following resources:

Remember to always refer to official sources for the latest firmware updates and support.

FAQ. Frequently Asked Questions- Vivo Y91i Flash File

Q1: Can I flash the Vivo Y91i PD1818GF firmware on the PD1818HF model?

No, it is not recommended to flash firmware intended for one model on a different model. Flashing the incorrect firmware can result in device malfunction or bricking.

Q2: Is there a risk of data loss during the flashing process?

Yes, the flashing process erases all data on the device. It’s important to take a backup of your data before proceeding.

Q3: Can I revert to the previous version of the operating system after flashing?

Yes, you can flash a previous version of the firmware to downgrade the operating system. However, it’s essential to ensure compatibility and follow the correct flashing process.

Conclusion: Vivo Y91i Flsh File

Flashing the Vivo Y91i PD1818GF and PD1818HF with the official flash files can bring significant improvements to your device’s performance, stability, and functionality. Whether you’re looking to upgrade, downgrade, or fix software-related issues, following the correct flashing process is crucial. Remember to back up your data, untick the preloader.bin option, and seek assistance if needed. Enjoy the enhanced experience with your Vivo Y91i.

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