How to Install Stock ROM on Vivo X9S Plus [Firmware/Unbrick]

Looking to Install Stock ROM on Vivo X9S Plus? then you are at the right place. Now install the official Stock firmware on Vivo X9S Plus. Vivo launched the latest smartphone called Vivo X9S Plus. It came out of the box with Android 7.1 Nougat. Vivo X9S Plus which under the hood runs on Qualcomm processor. Here we will guide you to install the official Stock ROM on Vivo X9S Plus using the software known as QFIL Tool, Formally also called Qualcomm Flash Image Loader. If you have installed Custom ROM or bricked your device, then this guide will be helpful to fix back to Stock ROM or unbrick it.

As far as the specifications of the Vivo X9s Plus is concerned, the Vivo X9s Plus will come with 1.4GHz octa-core Qualcomm Snapdragon 653 processor and it comes with 6GB of RAM. The phone packs 128GB of internal storage cannot be expanded. As far as the cameras are concerned, the Vivo X9 Plus packs a 16-megapixel primary camera on the rear and a 20-megapixel front shooter for selfies. Also, the phone comes with a 5.80-inch touchscreen display with a resolution of 1080 pixels by 1920 pixels. Talking about the Vivo X9s Plus’s operating system on the device, the device runs on Android 6.0 Marshmallow. However, we should expect the smartphone to launch with the latest Android 7.0/7.1 Nougat update when it launches in China.

Android always opens the door to various possibilities such as flashing custom ROM or kernel or APK modding etc. These feats can be achieved by providing root access to your device or simply rooting your phone.  In today’s date, rooting or customizing is no rocket science, but people perform these process carelessly. Certain users hastily carry out the modding/rooting process without properly following instructions. It leads to bricking of the device. It can happen with any device. In this post, we will tell you how you can restore or unbrick Vivo X9S Plus back to the previous working condition.

The guide is simple and easy! All you have to do is simply download the below-given firmware files and tools on your PC and then follow the given instruction to install the Stock ROM on Vivo X9S Plus using QFIL Tool. Yes, this guide is also helpful to recover, unroot or fix any software malfunctioning problem.

Vivo X9s and X9s Plus
Vivo X9s and X9s Plus

How to Install Stock ROM on Vivo X9S Plus

Remember this guide is also very much needed in case of upgrade or downgrade the firmware on Vivo X9S Plus. First of all, download the software, Smartphone Flashtool on your PC and then flash your phone back to Stock ROM. We request you to read the steps carefully before upgrading Vivo X9S Plus using this guide.

The Advantage Of Stock ROM:

  • Flash Stock To Unbrick your Vivo X9S Plus
  • Flash Stock ROM to Fix the boot loop problem
  • Upgrade and Downgrade Vivo X9S Plus
  • Unroot or Fix Bugs on your phone
  • To fix the lag or stutter on Vivo X9S Plus
  • By flashing Stock ROM, you can solve software problems.
  • Revert back to stock to gain your warranty.
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So before jumping into the manual upgradation setup, please make sure you have a good amount juice with at least 80% Charge. If not please charge the phone. Backup your phone in case if you need it later. If you brick the device we are not responsible. Do it at your own risk. Remember this guide is to update the Stock ROM on Vivo X9S Plus.

Firmware Details:

  • Gapps File: Included
  • Device Supported: Vivo X9S Plus
  • Android OS: 7.1 Nougat
  • Tool Supported: QFIL
  • Language Supported: Multi-Language
  • Build:

PD1635_A_1.18.5 Changelog: 

[Audio] Fix some user feedback recording, WeChat voice noise problem, improve your voice experience

[System] Optimize touch insensitivity in special scenes to make your touch operation smoother

[System] Fix the low probability of the lock screen interface to unlock the problem and improve the stability of the system.

[Bluetooth] Optimize car compatibility, make driving more convenient and better.

[Network] Optimize special scenes and not make phone calls, improve your call experienc

Download Firmware

Download File Description

Steps to Install Stock Firmware on Vivo X9S Plus:

Before installing, make sure to follow the pre-requisite and install the necessary drivers and tools on your PC.


  • Charge your phone: Before you proceed with the below information, you are recommended to ensure that your Vivo X9S Plus is at least 50% charged.
  • Laptop or PC: To carry out this installation, you need PC or Laptop.
  • Take Device Backup: The very first thing to pay attention to is taking the device backup. You might not be able to take the backup of phone data, however, if you have inserted a memory card in your device, remove it at least to save it.
  • Qualcomm Flash image loader: Download QFIL Tool
  • Install Latest Driver: Install the Latest Vivo USB Drivers. [For All Android USB Drivers]
  • Download: Download the above-required files on your PC.

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Disclaimer: We at cannot be held responsible if anything goes wrong. Take your own risk!


Instructions to Install on Vivo X9S Plus via Recovery:

  • Download the ROM update file and move it your phone’s internal storage
  • Now boot your phone into recovery and follow our guide
  • Now tap on Update and load the downloaded file
  • Now your phone will start upgrading to the new update.
  • Enjoy!

Instructions to Install via QFIL Tool:

Download Qualcomm Flash image loader tool and USB Drivers on your PC. Follow the below link to install the firmware using QFIL tool

Guide to Install Stock ROM using QFIL Tool

I hope you installed the Stock ROM on Vivo X9S Plus successfully, Now please rate this website with your comment. We always welcome feedback and improvements.

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