Flash Vivo Y91 Stock ROM [ MTK PD1818cf & PD1818DF ]

Flash Vivo Y91 MTK Stock ROM [ MTK PD1818cf & PD1818DF ]

Are you a Vivo Y91 android smartphone user and searching for official stock ROM of Vivo Y91 mobile? If yes then it’s must to know that Y91 model comes in two different variants. So before going to flash Vivo Y91 mobile, make sure you have downloaded correct firmware according to your own device model.

Basically Vivo Y91 comes with two different chipsets, Qualcomm Vivo Y91 and MTK Vivo Y91. Just because of this chipset Vivo Y91 firmware and flash tools are different for both MTK and Qaulcomm supported Vivo Y91.

So here in this flashing guide we are adding MTK Vivo Y91 flash file with tool. It’s very important to know that Vivo Y91 PD1818cf and Vivo Y91 PD1818DF variants are the MTK Vivo Y91 MTK mobile. Same as, Vivo Y91 PD1818EF and Vivo Y91 PD 1818f are Qualcomm phones. So firmware flashing methods are very different from each other.

Qualcomm Vivo Y91 Models

  • Vivo Y91 PD1818EF Qualcomm
  • Vivo Y91 PD 1818f Qualcomm

Qualcomm Vivo Y91 Specification

MediaTEk Vivo Y91 Mobiles

  • Vivo Y91 PD1818cf MTK
  • Vivo Y91 PD1818DF MTK

Mediatek Vivo Y91 Specification

Both above models [ PD1818cf & PD1818DF ] are based on MTK chipset and their firmware comes with scatter.txt file. Because of this scatter.txt file, it’s must to use MTK flash tool to install stock ROM on MTK Vivo y91. Here in this guide we will use free SP flash tool which is one of the best and most popular MTK flash tool to flash scatter loading files.

Download Flash File For Vivo Y91 PD1818cf / PD1818DF , Tools, DA File & Auth File

( Stock ROM ) Download Vivo Y91 Flash FIle

Download Stock ROM For Vivo Y91 PD1818cf MTK Phone

Download Stock ROM For Vivo Y91 PD1818DF MTK Phone

MTK Vivo Y91 Flash Tools


Download Vivo Y91 USB Drivers


How To Flash Vivo Y91 MTK Phone Using Sp Flash Tool [ With DA & Auth File ]

As we already told you that both Vivo Y91 PD1818cf and Vivo Y91 PD1818DF models are MTK devices and their firmware contain scatter.txt files. So, we can use any scatter.txt file firmware flashing tools like MTK vivo flash tool [SWD After Sales Tool ] or Sp flash tool.

But main thing is that latest vivo Y91 mediatek phones comes with MTK secure boot feature and you can’t flash them without necessary DA and Auth file. So don’t forget to download Vivo Y91 DA file and Auth file with official firmware.

Otherwise, you can flash Vivo Y91 stock ROM using Swd after sales tool without having DA and Auth file. In short, use the Vivo Y91 auth file and DA file, if you going to flash Vivo Y91 MTK phone with Sp flash tool.

Instructions To Flash Vivo Y91 With DA And Auth File

Warning: We never recommend you to flash the preloader.bin file on Vivo phones powered bt MTK chipset. It may lead to brick the device, so we highly recommend you to untick preloader before flashing firmware using Sp tool.
  • Download Vivo Y91 firmware, drivers and DA & Auth files in zip format and extract them on pc.
  • Install Vcom drivers or MTK drivers on windows pc.
  • Launch “Sp Flash Tool” as administrator.
  • Once the tool opened, click on “choose” button from “Download agent” section and load “DA_PL_MT6762_0321.bin” from extracted file folder.

vivo y91 y91i y93 da and auth file

  • Same as above, click on “Choose” button from “Authentication File” section and load “authfile_MT6762_0321.auth” file from extracted folder.


  • Again click on “choose” button from “Scatter-loading file” section and Select “Scatter.txt” file from firmware folder.

  • Keep the option as “Download Only” It’s highly recommended.
  • Finally hit on on “Download” button from top of the tool.

  • Press Boot Key and plug USB cable.
  • Wait for firmware flashing.
  • Done!!!
Please Note: Above flashing method can install stock ROM on Vivo Y91 MTK mobile, but it can’t remove FRP lock. FRP unlock using Sp flash tool is little bit different from flashing process.

This is the simplest method to flash MTK Vivo Y91 PD1818cf & Vivo Y91 PD1818DF mobile with Sp flash tool. DA file and Auth file is must to flash vivo y91 MTK phone without Auth file error and DA file error.

Flash MTK Vivo Y91 With SWD After Sales Tool [ Without DA And Auth File ]

If you are getting any flashing error or don’t want to flash it with Sp flash tool then use the SWD after sales tool. SWD after sales tool is another MTK Vivo flash tool to flash scatter loading file based firmware.

Please Note : Firmware flashing and FRP unlock method is same for Vivo Y91 MTK mobile. Use free SWD after sales tool to install official stock rom as well as to remove Google account verification.
  • Download Vivo Y91 flash file, Drivers and tool and extract them on pc. [ DA And Auth files are not required ]
  • Run SWD after Sales Tool as administrator.
  • Once the tool launched on pc, load firmware, configure the tool properly and start flashing.
flash tecno firmware using swd tool
flash firmware using swd tool

In case you have Qualcomm Vivo Y91 mobile then visit on below link.

This is all about “how to flash Vivo Y91 PD1818cf and Vivo Y91 PD1818DF phones? Download correct firmware according to your own device model and flash it with sp flash tool or swd after sales tool.

Jagmohan Singh Negi

I am Jagmohan Singh Negi A Tech Enthusiastic Person. I always want to explore something new and experiment on Android Smartphones, here on 99mediasector.com i share solutions of Latest Android Bugs and Their Fixes, Latest Android launches, and How-to-Type Solutions for All Android Smartphones.

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