Cách reset máy vivo y91

How to hard reset on your Vivo Y91 (Mediatek) ? If you need to wipe your phone's data for any reason, you can perform a hard reset in recovery mode. This feature will completely erase your personal information and data from your device and make it 100% clean.

Hard Reset with Recovery Mode, is an important solution that is usually performed when all basic troubleshooting steps have been exhausted.

If your Vivo Y91 (Mediatek) smartphone has problems like:

• Running slowly,
• Unexpected stucks,
• Blank or frozen screen,
• Apps crashing or freezing,
• Virus infection,
• Frequent failures from system and apps,
• Device restarts itself,

Apart from all these problems, if you decide to sell or change your mobile phone, you can prefer the Vivo Y91 (Mediatek) hard reset as the easiest way to clear your personal information.

Vivo Y91 (Mediatek)

How To Hard Reset On Your Vivo Y91 (Mediatek) In Recovery Mode

Vivo Y91 (Mediatek)

Factory Reset Protection (FRP) is a security feature on Android devices with Lollipop 5.1 and higher. When you set up a Google Account on device, FRP becomes active automatically. Once FRP is activated, it will block the use of the device after factory reset process until logging on a remembered Google Account and Password.

If you have Developer Options turned on, you can also turn off FRP from your device's Settings app. Tap System > Advanced > Developer Options > OEM Unlocking

In any case, remember your Google email address and your password, because if the FRP is activated, you can only log in again with this information.

Vivo Y91 (Mediatek)

Before Vivo Y91 (Mediatek) hard reset, ensure the device is charged to a minimum of 50%. If you try to hard reset your smartphone with a critical amount of charge it may not turn on after the reboot.

You can perform a hard reset Vivo Y91 (Mediatek) following the instructions below, it resets to your device to the factory default settings.

• Charge your battery 30% or more.
• Turn off your smartphone.
• Press and hold the Volume Down button and the Power button at the same time until the phone turns on.
• Press the Volume Down button until you see Recovery Mode.
• Press the Power button to restart in Recovery Mode.
• Use the Volume buttons to scroll to Wipe Data / Factory Reset, then press the Power button to select it.
• Use Volume buttons to scroll to Factory Data Reset, then press the Power button to select it. Allow several seconds for the reset to complete.
• Use Volume buttons to scroll to Reboot System Now, then press the Power button to select it. Allow several minutes for the reboot to complete. If the phone doesn't finish rebooting, press and hold the Power button until the screen turns dark, then release it to power up normally.

Your phone will automatically restart after hard reset of the Vivo Y91 (Mediatek). The initial start-up of the device will take longer than usual, so do not interfere with the device and wait.

If you hard reset your smartphone because you suspect a third-party app is causing problems, when you set up the phone again, be sure you don't copy all apps. Then, restore one app at a time and use the smartphone for a while. If the smartphone has no issues, install the next app and retest.

When your Vivo Y91 (Mediatek) is turned on, you can setup it from a backup using your previous Google Account and Password, Backup and Restore options or you can set up as a new device and continue.

How to Hard Reset vivo Y91

• Take your vivo Y91 and go to the menu, and then go to setting.
• Scroll down and tap on General management./ Backup and Reset
• Tap the “Factory Data Reset”

• Tap on Factory data reset.
• Scroll down to the bottom and tap on Reset. If you have set PIN or Pattern, then Enter your PIN, password, or pattern to proceed.
• Now, it will start the Factory Reset vivo Y91.
• Read More.

 How Factory Reset vivo Y91       

If for some reason your vivo Y91 is unable to boot into Normal Android Mode, and you Still need to perform a factory reset, the instructions are a bit difficult, but they do the same thing.

Note – We recommend you get full back up.

• Take your Vivo and switch off it by pressing the power key – please wait until vibrate or Ring
• Press and Hold Power Button + Volume Up + Home Button simultaneously until the Vivo logo shows up on the screen. Lift fingers.
• If you see an android Robot with “No Command” then, Wait for seconds.
• After Command Appear (colored text), Use Volume Up Button and Volume Down Button to scroll to Wipe data/factory reset.

Read More – Increase Internal Rom vivo Y91 after root

• Go down and Tap “Wipe data/factory reset” by clicking the power key.
• Go down and select “YES–delete all user data” by taping the power key.
• After pressing “YES–delete all user data” your vivo Y91 will start performing a reset. So, Don’t Switch OFF The Device during this task.
• After the reset, You will have to set a date and time, language, and sign in to your google account.

Factory Reset vivo Y91 with Android Device Manager

1. First, Go to Android Device Manager and log in to your vivo Y91 Device’s google account.
2. Now, You will see an “Erase Device” option in the box.
3. Click the “Erase Device” and confirm it. It will start to reset the vivo Y91 Device.

Factory Fully Reset vivo Y91 – entire Device (advance)

In the above three methods, we only do reset but in this, we are going to replace the entire android system. If you buy a vivo Y91 Device, then it has a Stock ROM. Stock ROM is the Original ROM and Official Rom that a Device has. So, installing Stock ROM does not avoid your warranty. We found dedicated posts about flashing Stock Roms on “Gogorapid”. Go to that site and Flash a new Rom to your Device.

Frequently asked questions and answers

Hi, however, I reset my Device successfully but I forgot to get back up before reset. I want to know, Can I get my data now? WhatsApp messages, Viber?

Yes, If you have lost data on your vivo Y91, do not worry, follow this guide and you will know how to perform Vivo data recovery to recover your lost photos, videos, contacts, and more. but I can’t say that you can get all the data. try this.

Remove Pattern Lock, Device password 

A lot of people suffering from this problem. they don’t know how to remove Pattern Lock from their Devices. If you use any third-party app to set Pattern Lock then Uninstall it first. If you do not use any app then you may have been set it through the Device setting. Try to find it and remove it. If you can’t find then your final solution is, “Factory reset” or Flashing Stock Firmware.

After resetting, Autoboot or bootloop or auto restart

First, Give it to 5minutes. Then press power +Volume Up + home together until the logo shows up, after that, select factory reset

If it Auto boot or auto restart – it could be Power switch is defective and could be always depressed. Maybe your Device case is pressing on it. So, remove that case for a little. After that, try to go to Normal Mode.

If is does not work, then install Stock Rom – Flashing Stock Firmware.

After factory reset my Device can’t connect to the internet

Q:  I performed a reset on my vivo Y91  Device. Now I can’t connect to the internet and the sim card was not recognized.

A: If there is no error msg, then Contact your Network severs provider (SIM) and you should ask for Internet settings for your Device.

A: Reset your Vivo again. If it is failed or goes wrong again, then try to flash Official Stock Rom. – Flashing Stock Firmware.

Stuck at vivo Y91 Logo Screen

Most of the time, the phone or tablet may be stuck for a long time. Then, letting the phone rest for a few more minutes is a good solution. (10 minutes) Upgrading uses more RAM on the device. If your RAM is small, it may take some time.

If the problem is persistent, it could damage your device system. So, try resetting your Vivo. If it does not work, you need to install Stock ROM. – Flashing Stock Firmware.

Fix – Device that says “NO COMMAND” in recovery mode

When you see the “No Command” screen you have to do the following. Also, note that you should try different button combinations and find the right combination for your device.

• #1 – Press Volume + Up and Down.
• #2 – Press Power + Volume Down + Volume Up.
• #3 – Press Power + Volume Down.
• #4 – Press Power + Volume Up.
• #5 – Press Power + Down Volume+ Home Button.
• #6 – Press Power + Volume Up + Home Button.

Try different button combinations until you find the right one.

When you have found the right button combination and the recovery menu appears, select “Wipe Cache Partition”.