Vivo Y91 PD1818F Firmware (Stock ROM) The Vivo Firmware helps you Upgrade or Downgrade the Stock Firmware (OS) of your Vivo Smartphone, FeaturePhone, and Tablet. It also allows you to Fix any IMEI-related issue, Software related issue, or Bootloop issue. File Name: Vivo_Y91_PD1818F_EX_A_1.8.25_LA.UM.6.6.2.R1-04200-89XX.0_QFIL.zip File Size: 4 GB Press and hold the volume down button and the power button. Power on your computer or laptop. Next you will see vivo recovery mode now select wipe data option using volume down button and press power button. This method will work on android 8 1 we tested. After the installation open the android tool. If your VIVO Y91 is turned on, firstly, need to holding down the Power button for a short time in order to see Power options. Next on screen tap Reboot key and wait a moment until the screen goes dark. Secondly, wait until the VIVO logo appears with Powered by Android caption. When the picture with Android logo pass from sight, start holding Steps to Install Vivo Y91 MTK Secure Boot DA auth File. Download NCK Pro Box | NCK Pro Box Drivers - Install both on your PC. Launch the NCK box on your PC > Click on FRP-PATTERN-PRIVACY-RESET. Click to select Custom Loader. Then head over to the DA file and select the downloaded DA file. Click on Flash Mode. How to hard reset Vivo Y91? In this tutorial, you can learn step by step how to hard reset your Vivo Y91 and make it 100% clean. How To · Vivo Y91 · Hard Reset · Recovery Mode · Factory Default Settings · Format · Reset · Wipe All Data · Backup · Factory Data Reset Cara Reset HP Vivo Y91 dengan Hard Reset. Langkah-langkah cara hard reset HP Vivo Y91: Matikan Handphone. Tekan & tahan tombol volume atas dan power secara bersamaan. Setelah muncul Fastbook Mode, lepaskan semua tombol. Pilih Recovery Mode. Tunggu beberapa saat. Setelah muncul menu Recovery, pilih Wipe data. Pilih Wipe data dan pilih lagi Wipe .

how reset vivo y91