In this guide, we will walk you through the process of installing a firmware file on the Vivo Z1x (PD1921F), which runs on Android 9.0 Pie. The Vivo Z1x is a mid-range Android smartphone equipped with the Qualcomm Snapdragon 730 chipset. If you are a Vivo Z1x user looking to install the Stock ROM for any specific reason, you can refer to this comprehensive guide for the necessary steps and requirements.
To flash the Stock ROM on your Vivo Z1x (PD1921F) device, powered by the Qualcomm chipset, you will need the QFil Tool, essential drivers, and a detailed guide. In this article, we will provide you with a step-by-step guide for easily installing the stock ROM. The flashing process is straightforwardly explained here. Additionally, if you prefer a visual guide, you can explore our video tutorial for a more hands-on experience.
PAGE CONTENTS
- What is Stock Firmware?
- The Advantages of installing Stock ROM:
- Firmware Details:
- Steps to Flash Firmware File on Vivo Z1x (PD1921F)
What is Stock Firmware?
A Stock ROM or Firmware represents the official software created and developed by the device’s manufacturer for a specific device model. It is designed to be stable and largely free from bugs. The Stock ROM includes essential system files and applications, thereby delivering a more seamless and reliable user experience compared to a custom ROM.
In contrast, while a Custom ROM offers extensive customizations and tweaks, it can potentially introduce security vulnerabilities. Therefore, in terms of reliability and security, the Stock ROM is generally a more dependable choice when compared to a Custom ROM.
The Advantages of installing Stock ROM:
Moreover, installing a Stock ROM on your Vivo Z1x offers the capability to address various device issues:
- Unbricking a Bricked Vivo Z1x:
- If your Vivo Z1x is bricked due to failed software modifications or other reasons, installing the Stock ROM can help revive your device.
- Resolving Boot Loops and Stability Problems:
- Stock ROM installation can help fix boot loop issues and improve the overall stability of your Vivo Z1x.
- Facilitating Upgrades or Downgrades:
- You can use the Stock ROM to upgrade to a newer Android version or downgrade to a previous version if required.
- Bypassing Screen Locks and Removing Malware:
- Stock ROM installation can help bypass screen locks such as pattern, PIN, or password. It can also remove malware and viruses from your device.
- Correcting Bugs and Lags:
- Stock ROMs are optimized by the manufacturer to provide a smooth and bug-free user experience. Installing a Stock ROM can help eliminate bugs and lags on your Vivo Z1x.
- Eliminating Root Access (Unrooting):
- If you have rooted your device and want to return it to its original state, installing the Stock ROM will eliminate root access and restore the device to its factory settings.
- Restoring Stock ROM after using a Custom ROM:
- If you have previously installed a custom ROM and want to return to the original operating system, installing the Stock ROM will restore your Vivo Z1x to its factory state.
- Resolution of Issues Related to WiFi, Bluetooth, and More:
- Stock ROM installation can help fix issues related to WiFi connectivity, Bluetooth connectivity, and other system functionalities on your Vivo Z1x.
- Fixing Soft Brick Problems:
- If your device is stuck in a boot loop or not booting up properly, installing the Stock ROM can help fix soft brick problems on your Vivo Z1x.
- Preloading Google Applications as Needed:
- Stock ROMs come preloaded with essential Google applications such as Google Play Store, Gmail, Google Maps, etc., ensuring that you have access to these services on your device.
By installing the Stock ROM on your Vivo Z1x, you can address these issues effectively and ensure optimal performance and functionality of your device.
Firmware Details:
-
- Device Model: Vivo Z1x
- Required Tool: Qualcomm Flash Image Loader (QFIL) Tool
- Processor: Qualcomm Snapdragon 730 Chipset
- Android OS Version: Android 9.0 Pie
- Gapps File: Included
- File: Stock ROM Update
To install the Stock ROM update on your Vivo Z1x, ensure you have the following:
- Vivo Z1x Smartphone: Make sure you have the Vivo Z1x device ready for the firmware installation.
- Qualcomm Flash Image Loader (QFIL) Tool: Download and install the Qualcomm Flash Image Loader (QFIL) Tool on your computer. This tool is required to flash the Stock ROM on your Vivo Z1x.
- Processor Qualcomm Snapdragon 730 Chipset: The Stock ROM is designed for devices powered by the Qualcomm Snapdragon 730 chipset.
- Android 9.0 Pie: The Stock ROM update is based on Android 9.0 Pie. Make sure you have the correct firmware version compatible with your device.
- Gapps File: The Gapps file is included in the firmware package. Gapps include essential Google apps and services such as Google Play Store, Gmail, Google Maps, etc.
Steps to Install Stock ROM Update on Vivo Z1x:
- Download Stock ROM Update:
- Download the official Stock ROM update file for Vivo Z1x. Make sure to download the correct firmware version that matches your device model and Android version.
- Install Qualcomm Flash Image Loader (QFIL) Tool:
- Download and install the Qualcomm Flash Image Loader (QFIL) Tool on your computer.
- Backup Your Data:
- Before starting the firmware installation process, it’s important to back up all your important data including contacts, photos, videos, messages, and any other files you want to keep. Installing the Stock ROM will erase all data on your device.
- Extract Firmware Package:
- Extract the downloaded Stock ROM update file on your computer using any file extraction software.
- Launch QFIL Tool:
- Open the Qualcomm Flash Image Loader (QFIL) Tool on your computer.
- Load Firmware in QFIL Tool:
- In the QFIL Tool, click on “Browse” and locate the firmware file (.mbn or .elf format) from the extracted firmware package.
- Connect Vivo Z1x to Computer:
- Power off your Vivo Z1x.
- Press and hold the Volume UP key while connecting your device to the computer using a USB cable.
- The QFIL Tool should detect your device.
- Start Firmware Installation:
- Once your device is detected, click on “Download” to start the firmware installation process.
- Wait for Installation to Complete:
- The firmware installation process may take some time. Do not disconnect your device during the process.
- Completion and Reboot:
- Once the installation is complete, you will see a “Download Succeed” message in the QFIL Tool.
- Disconnect your Vivo Z1x from the computer and reboot it.
After the reboot, your Vivo Z1x should be running the latest Stock ROM update based on Android 9.0 Pie.
Steps to Flash Firmware File on Vivo Z1x (PD1921F)
To commence the flashing process, your first step is to download the necessary files. Below, you’ll find the download links for both the firmware file and the Qualcomm Flash Image Loader (QFIL) Tool:
Firmware File:
- File Name: Vivo_Z1x_Stock_ROM.zip
- Download Link: Vivo Z1x Stock ROM
Qualcomm Flash Image Loader (QFIL) Tool:
- Tool Name: Qualcomm Flash Image Loader (QFIL) Tool
- Version: Latest
- Download Link: QFIL Tool
Steps to Download Firmware File and QFIL Tool:
- Download Firmware File:
- Click on the provided link to download the Vivo Z1x Stock ROM firmware file.
- The firmware file is in a compressed zip format. Once the download is complete, extract the contents of the zip file to your computer using any file extraction software.
- Download Qualcomm Flash Image Loader (QFIL) Tool:
- Click on the provided link to download the Qualcomm Flash Image Loader (QFIL) Tool.
- The QFIL Tool is used to flash the Stock ROM firmware onto your Vivo Z1x.
- Once the download is complete, extract the contents of the zip file to your computer.
After downloading the firmware file and the QFIL Tool, you are ready to proceed with the flashing process to install the Stock ROM update on your Vivo Z1x. Make sure to follow the instructions carefully to avoid any errors during the firmware installation process
(Pre-Requirements:
Here are important instructions to consider before initiating the flashing process:
- The ROM file is exclusively meant for the Vivo Z1x (PD1921F) handset. Do not attempt to use this ROM on any other device.
- Ensure that your device has a minimum charge of 50% before proceeding.
- It’s advisable to back up your device’s data before commencing the flashing process.
- You will need a Windows PC or laptop for driver installation and device connection during the flashing process.
- Have a USB cable on hand to establish a connection between your device and the PC.
- Download and install the required USB Drivers on your Windows PC.
Flash Tool Options:
- QFil Flash Tool
- QPST Tool
Drivers:
- Vivo USB Drivers
- Qualcomm QDLoader driver
Download Firmware Files:
Method 1: Using QFIL Tool
To install the Stock ROM on your Vivo Z1x (PD1921F) using the QPST Tool, follow these instructions:
Prerequisite Steps:
- Download the Qualcomm Flash Image Loader (QPST) Tool and USB Drivers on your PC.
Method 2: Using QPST Tool
- Download QPST Tool and USB Drivers:
- Download the Qualcomm Flash Image Loader (QPST) Tool and USB Drivers on your PC from the provided links.
- Extract QPST Files:
- After downloading, extract the QPST files. You’ll find two files: “Qualcomm_USB_Drivers_For_Windows.rar” and “QPST.WIN.2.7 Installer-00429.zip.”
- Install QPST Tool:
- Access the “QPST.WIN” folder and install the QPST.exe file on your PC or laptop.
- After the installation, navigate to the installed location in your C Drive.
- Open QPST Configuration:
- Open the QPST Configuration application.
- Add New Port:
- Inside the QPST Configuration, click on “Add new port.”
- Select the COM port associated with your device, and then close the application.
- Open EMMC Software Downloader:
- Now, open the EMMC Software Downloader located in the same folder where all the QPST files are found.
- Configure EMMC Software Downloader:
- In the EMMC Software Downloader, check “Program boot loaders” and browse for the COM port of your device.
- Click on “Load XML Def” and locate the “rawprogram0.xml” file in the ROM folder of the EMMC Software Downloader. If the ROM is not already extracted, please extract it first, and then browse for the “rawprogram0.xml” file.
- Next, click on “Load Patch def” and locate the “patch0.xml” file in the ROM folder.
- Ensure that “search path 2” is selected, and browse for the ROM folder in the QPST search path.
- Start Firmware Installation:
- Click on “Download” and wait for the download process to complete.
- During this process, the tool will also search for new hardware and install the necessary driver.
- Reboot Your Phone:
- Once the installation is complete, reboot your phone.
Congratulations! You have successfully installed the Stock ROM on your Vivo Z1x (PD1921F) using the QPST Tool.
This guide should help you upgrade or downgrade your Vivo Z1x (PD1921F) as needed.