Different Methods for Resetting Oppo A78 Phones with Screen Locked and Not

The Oppo A78 has made its place in the smartphone industry at a fast pace. Oppo A78is dealing with a broad spectrum of products from flagship phones to smartwatches and security cameras. No worries if you own a smartphone owned by the label and don’t know how to reset your Oppo A78phone without a password.

In the following article, you can learn all about factory resetting Oppo A78phones, including an apt checklist of things to do before wiping all the data from your device. Also, discover multiple easy methods to reset a Oppo A78phone with or without a password.

Part 1: When Should You Reset Your Oppo A78?

Performing a factory reset on your phone is a significant step as it wipes all existing data on your device and leaves you with a blank slate. Here are some plausible reasons why you might want to reset your Oppo A78phone:

1. Performing a Full Wipe

Sometimes, erasing all data on your phone is an evident need. If you want to delete all apps on your phone or restore them to factory settings, a direct factory reset provides a simple solution for this.

2. Forgotten Passwords

Forgetting your phone’s password is a catastrophe, and everyone is prone to it. If you end up locking yourself out of your phone after too many attempted tries to unlock it, a hard factory reset is sometimes the only option left. You can learn how to factory reset your Oppo A78phone when locked and end up with a clean slate without any password.

3. Selling or Replacing Phone

If you choose to sell your Oppo A78phone and move on to a new one, you will need to wipe all data from your device. Deleting everything from your phone before changing it is essential to protect the integrity and privacy of your data. In such a situation, you can perform a factory reset, and your phone will be good as new.

4. Virus and Malware Attacks

If a virus or malware attacks your device, it can slow down your phone and put your data at risk. To ensure that no trace of malicious software is left on the Oppo A78 device, you will need to perform a factory reset on your Oppo A78phone.

5. Slow Performance

Apps installed from third-party sources can often hog up the storage on your phone and result in slow system performance. If your phone is acting slower than usual, you can factory reset it to resolve the issue.

Part 2: What Should You Do Before Formatting Your Oppo A78?

If any of the above-mentioned reasons check a box and you wish to format your Oppo A78phone, it can be done in a few instants. However, keeping in mind the severity of the consequences, it is better to keep a few things in mind before proceeding with the process.

Performing a factory reset on your device cleans every last bit of data from it. This means that all the images, documents, contacts, cache files, app data, Google accounts, and other stuff will be permanently removed from your phone. Hence, before formatting your phone, it is advisable to make a complete and up-to-date backup of your data.

The Dr.Fone - Phone Backup tool for Android is a competent software that can help you make a complete backup of your data. With a single click, you can transfer all the data on your phone to your computer. You can also sync your Android data to popular cloud storage services such as Google Drive, Dropbox, etc.

Before formatting your device, you have to keep in consideration Google’s Factory Reset Protection (FRP) feature. This is a security feature in Android phones that prevents unauthorized use of devices. FRP makes sure that only the owner of the Google account signed into the Oppo A78 device can perform a factory reset on it. If you have forgotten your Google account password, reset it in advance so you can format your phone. Note that you have to wait for 72 hours after changing your Google account’s password before formatting a linked phone.

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Part 3: How to Factory Reset Oppo A78

If you know the passcode to your device, the procedure to factory reset your device is easy as a breeze. The following methods indicate how to factory reset a Oppo A78phone when it is not locked.

Method 1: Factory Reset Oppo A78 via Android Settings (Factory Reset)

The easiest way to perform a complete wipe on your phone is via your phone’s settings. Here are the steps for that:

Step 1: Go to the settings of your Oppo A78phone and scroll down to find the “Factory Reset” option. Typically, this option is under the “About Phone” or “Additional Settings” menu.

Step 2: Now click on “Erase all data” at the bottom of your Oppo A78phone screen.

Step 3: You will be prompted to type your phone’s passcode to proceed. Afterward, you can create a backup of your phone’s data by clicking on the “Back up” option. If not, hit the “Factory Reset” button and click “Next.”

Step 4: Wait for 10 seconds and click “OK” on the screen. Now, wait for the reset process to complete, and you are all done.

Method 2: Permanently Erase Everything with Dr.Fone - Data Eraser (100% Wipe Data)

Although the settings app provides an easy way to wipe your phone’s data, the feature has certain drawbacks. Luckily, Wondershare Dr.Fone - Data Eraser (Android) offers an easy alternative for resetting your phone using its Data Eraser tool.

Dr.Fone can permanently and completely wipe all data, including contacts, messages, images, app data, and more, from your phone in just a single click. The process is quick and easy and provides data security to users. The following steps indicate how to reset Oppo A78phone using Dr.Fone - Data Eraser (Android) tool:

Step 1: Use Data Eraser Tool

Install and launch Dr.Fone on your computer, and select the “Data Eraser” tool from the program’s main interface.

Step 2: Enable USB Debugging

Now connect your Oppo A78phone to your computer via a tethering cable and enable USB debugging on your Oppo A78phone.

Step 3: Start Erasing Oppo A78Device

After attaching your phone to the computer, click on “Start.” Now, type in the confirmation code present on the screen and tap on the “Erase Now” button to reset your Oppo A78device.

The Difference Between These Two Methods

The conventional method of wiping your phone using the Android settings suffers a significant drawback. Due to the lack of data encryption by Android, data from almost 40% of formatted devices can be quickly recovered using data recovery tools. Even after a full factory reset, deleted files are retrievable to some extent.

The benefit of using Dr.Fone as your data eraser tool is that it can permanently erase everything on your phone. The program overwrites the phone memory with random data, hence securing your privacy. Data formatted via Dr.Fone cannot be recovered in any case, so you have nothing to worry about.

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Part 4: How to Factory Reset Oppo A78 When Locked

If you got locked out of your Oppo A78phone, the process to factory reset your phone can differ slightly. The following methods describe how to factory reset Oppo A78phone when locked.

Method 1: Via the Recovery Mode

One of the go-to methods for factory resetting a locked Oppo A78phone is via the recovery mode. You can follow the steps given below to boot your phone in recovery mode and perform a factory reset on your Oppo A78phone without a password:

Step 1: Long press the Power button on your Oppo A78phone to turn it off. Now press and hold the Power button and the Volume Up button at the same time.

Step 2: Once the Oppo A78logo appears on the screen and you feel a vibration, let go of the Power button but keep pressing the Volume Up button. Let go once you see the “Recovery Mode” screen on your phone.

Step 3: Use the volume keys to scroll down the screen and find the “Wipe Data” option, then hit the Power button to select it.

Step 4: Press the Power button again on the “Wipe All Data” option and do the same on the “Confirm” option. After the resetting process is complete, select the “Back to Main Menu” option and reboot your device.

Method 2: Via Find Device

Xiaomi offers a “Find Device” option, using which you can learn to factory reset your Oppo A78phone without a password using your Oppo A78account. Note that for this process to work, you will require an active internet connection and a signed-in Oppo A78account on your phone. Then, you can perform the following steps to wipe data from your Oppo A78phone:

Step 1: Launch the official website of Oppo A78 and sign in using your Oppo A78account.

Step 2: Click on the “Find Device” option and select your phone from the screen’s upper-right corner. Next, tap on “Erase Data” and confirm the process to erase all data from your device.

Method 3: Using ADB Fastboot Tools

The Xiaomi ADB Fastboot Tools is a helpful app that enables users to perform ADB commands quickly and easily. The app comes with a range of beneficial tools that can help you wipe all data from your phone. Following is a step-by-step guide on how to reset Oppo A78phone when locked using the ADB Fastboot Tools:

Step 1: Hold down the Power button and the Volume Down button at the same time until you see the Fastboot splash screen.

Step 2: Use a USB cable to attach your Oppo A78phone to your computer and launch the Xiaomi ADB Fastboot Tools application.

Step 3: The app will automatically detect and display the information regarding your Oppo A78phone at the top-left corner of the screen.

Step 4: Under the “Wiper” section in the app, click on “Wipe cache and user data” to reset your locked Oppo A78phone.

Method 4: With Dr.Fone - Screen Unlock (Android)

If you are searching for a reliable way to reset your Oppo A78phone without a password, Dr.Fone can come in handy. Using the Screen Unlock feature of the tool, you can easily remove the screen lock and then perform a complete wipe on your device. Here is how to factory reset a locked Oppo A78phone using Dr.Fone - Screen Unlock (Android) :

Step 1: Proceed with Screen Unlock

Launch Dr.Fone’s Repair Toolkit on your computer. From the “Home” tab in the main interface, click on “Screen Unlock.” Now attach your phone to the computer using a USB cable and click on “Unlock Android Screen.”

Step 2: Enable Oppo A78Download Mode

Dr.Fone will detect and display your device information on the screen. Now boot your phone into Download Mode using the instructions present on the screen and download the recovery package for your device.

Step 3: Remove Oppo A78Screen Completely

Once the download is complete, click “Remove Now” to access your phone without a passcode. Then, you can factory reset your Oppo A78phone from the settings.

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Part 5: FAQs about Oppo A78

1. How can I hard reset my Oppo A78phone without a PC?

A hard reset basically wipes out everything from your device, including media files, contacts, and app data. As the above-mentioned methods indicate, you can easily perform a hard reset (aka factory reset) on your device without a PC.

2. What is the difference between a hard reset and a soft reset?

A soft reset means rebooting your device to fix minor issues. It is one of the easiest and quickest ways to refresh your device and improve performance speed. The process clears RAM data and can thus clear caches or other background processes interfering with your device’s operations.

A hard reset is a process of restoring a device to its original factory conditions. Executing a hard reset means removing all data from your device, leaving you with a clean slate. A hard reset is useful for fixing serious issues on your device, such as virus attacks.

3. How can I restore my Redmi in recovery mode?

If your Redmi phone is stuck in recovery mode, you can try the following method to fix the issue:

Use the Volume Up and Down buttons to navigate your way through the recovery mode. Use the Power button to click on the “Reboot” option on the screen. This will make your device exit recovery mode and restart normally.

If this method does not work, you can wait for the battery to drain fully from your phone and reboot it normally.

Conclusion

Oppo A78is a famous brand that serves a large number of consumers worldwide. If you are also a Oppo A78user, you now know how to factory reset your Oppo A78phone without a password owing to the in-depth guide mentioned above. Using these easy methods, such as Dr.Fone for resetting your device, can help save you a great deal of trouble.

4 Easy Ways for Your Oppo A78 Hard Reset

Oppo A78 is a popular smartphone brand that has a wide range of models. If you are a Oppo A78 user, you might have to hard reset your phone for various reasons. A hard reset is a process that erases all data and settings from your phone, and it is the last resort to fix any software-related issues. If you are looking for ways to hard reset your Oppo A78 phone, you are in the right place. In this guide, we will discuss four easy ways to hard reset your Oppo A78 phone.

If your Oppo A78 phone is very slow or hangs, and you cannot fix it even working with memory and other stuff, then you can solve this issue using Oppo A78 hard reset. This also works if you have forgotten your PIN or password or you want to bypass the screen lock. So, how to hard reset a Oppo A78 phone?

Part 1: 4 easy ways to hard reset your Oppo A78

Hard reset Oppo A78 is an excellent solution for bypassing screen lock and recovering locked Oppo A78 phone. It is also an option to format your Oppo A78 phone if you are handing over or selling your phone and want to keep your data secure. So, what are the tools or techniques for Oppo A78 hard reset?

1. Google Find My Device (data loss)

Google Find My Device is your best bet if you want to reset your Oppo A78 phone hard remotely. So, here is the step-by-step guide for this method.

1. Launch Google Find My Device on your computer and sign in with your Google credentials.

2. You can choose three options, i.e., Play sound, Secure device, and Erase device.

3. Click the Erase Device link.

4. In the Erase all data menu, click the Erase option.

2. Gmail account

If you opt for a Oppo A78 hard reset because of screen lock or phone locking issues, then your other option is to use the Gmail account to unlock it. If you are wondering how to use a Gmail account for unlocking, here is the step-by-step guide.

1. Power On your Oppo A78 Android phone.
2. When you attempt your phone incorrectly multiple times, you will see the Forgot pattern option.
3. Click the Forgot pattern option.

4. Fill in your Google Account credentials to log in.
5. Now, unlock your device and choose a new password.

3. Answer security questions

Google security questions or your device company Security questions will help you to reset your phone password without data loss.

1. When you attempt a wrong password multiple times, you will see options for recovering passwords.
2. Click on the Forgot pattern option.

3. Click on the “Answer question”.
4. Answer the security questions correctly to unlock your phones and choose a new password or pattern lock.

4. Use Dr.Fone - Data Eraser

If the reason for hard resetting your phone is any issue with the deleting data of the phone, second-hand phone for sale, then your phone need to data erasing. Since it is a complicated technical procedure for a layman, we recommend using Dr.Fone - Data Eraser because of its ease of use and efficiency. You can erase all types of data using this software. Let us see how it works.

1. Connect Your Android Phone

Launch Dr.Fone on your computer. Select “Data Eraser” among all the tools to resolve the Oppo A78 hard reset.

Connect your Android phone to the computer using a USB cable. Make sure you have enabled USB debugging on your phone. If the Android os version is above 4.2.2, there will be a pop-up message on your phone asking you to allow USB debugging. Tap on “OK” to continue.

2. Start Erasing Your Android Phone

Then Dr.Fone will automatically recognize and connect your Android device. Click on the “Erase All Data” button to start erasing all your data.

Since all the erased data are not recoverable, make sure you have backed up all the needed data before you proceed. Then key in “000000” into the box to confirm your operation.

Type in “000000” to confirm and move on. Since you may lose your data in system repair and in case of a Oppo A78 hard reset, your phone’s memory is wiped, it is always important to keep a backup of your phone data. More on this in the next section.

Then Dr.Fone will start erasing all data on your Android phone. The whole process takes only a few minutes. Please don’t disconnect the phone or open any other phone management software on the computer.

3. Perform Factory Data Reset on Your Phone

After all app data, photos, and all other private data have been completely erased, Dr.Fone will ask you to tap on Factory Data Reset or Erase All Data on the phone. This will help you completely wipe all the settings on the phone.

Now your Android phone has been completely wiped and it’s like a brand new one.

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Part 2: How to keep my data safe?

The best thing you can do to keep your data secure, even in case of unwanted crashes and accidents, is to periodically back up your phone and computer. So, you might ask what the best way to back up my phone is. We recommend Dr.Fone - Phone Backup because it is part of your phone’s comprehensive suite of solutions and works efficiently without any technical input from you.

The Bottom Line

In the current digital age, part of our life depends on our gadgets, so keeping them updated and tuned in is the best strategy to function without unwanted bumps. Obviously, it takes some pre-planning like periodic data backup, memory refresh, optimum charging, and so on. Dr.Fone is a comprehensive suite of applications that help you maintain your devices and fix them in case of an accident. This article discusses the Dr.Fone - Data Eraser for Oppo A78 hard reset.

3 Solutions to Hard Reset Oppo A78 Phone Using PC

Find here 3 easy ways to hard reset Android using ADK or Android Device Manager from your PC. Also, do not forget to back up Android to PC before starting.

There are several cases when someone wants to know about how to hard reset an Android phone using PC. Such cases usually arise when your device is not accessible or stolen. It also involves situations when you forget the password or the unlock pattern of your device, or maybe your phone has frozen and is non-responsive. In such situations, it is very important to know how to reset Android phones to factory settings from the computer.

Factory reset will delete all your user data from internal storage. Thus it is also very important to back up all your internal data of the Oppo A78 device before you hard reset Android via PC. Moreover, a hard reset should be your last option at hand to revive your Android device. Hence, in this article for all the users out there, we have picked up the solution on how to factory reset Android Phone using PC.

You must ensure that all the steps are followed in sync so that the hard reset Android via PC is successful.

Part 1: Back up Android before hard reset

Since factory reset involves removing all data, adjusted settings and logged accounts from the Oppo A78 device; therefore, it is very important to back up all the data before moving on with the factory reset process. So, in this section, we will show you how to first back up your Android device using the Phone Backup . This is an easy-to-use and very convenient Android backup software that can be used to back up an Android device.

Wondershare Dr.Fone

Flexiblely Back up and Restore Android Data

• Back up Android data to the computer with one click.
• Preview and restore the backup to any Android device or iOS device.
• Supports 8000+ Android devices.
• There is no data lost during backup, export, or restoration.

3,981,454 people have downloaded it

Let’s have a look at the easy process to back up Android before the factory reset it.

Step 1: After installation completes, connect your Android device via data cable and go to “My Backup”. Then, this tool will automatically detect your device.

Step 2: You can now see the file types that will be backed up, such as Contacts, Messages, Calendars, Videos, etc.

Step 3: Click on “Backup pow”  to proceed with the process. The backup process will start, keeping connected the Oppo A78 device during the phone backup process.

Step 4: Within a few minutes, your whole device will be backed up. You can click “View Backups” to view all data that is backed up.

Phone Backup is one of the handiest and easy-to-use features within Wondershare Dr.Fone. Users can select their opted files manually to restore. This tool supports 8000+ Android devices worldwide. Users will feel safe and secure using this revolutionary software.

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Part 2: Hard Reset Android using Dr.Fone - Screen Unlock (Android)

Dr.Fone - Screen Unlock (Android) is a user-friendly software tool that helps you unlock your Android device if you forget the passcode, pattern lock, PIN, or face/fingerprint lock. It supports various Android devices, allows you to bypass lock screens without data loss, and provides step-by-step instructions for easy unlocking. It also helps with FRP unlock and works on both Windows and Mac systems.

Step 1: Launch Dr.Fone - Screen Unlock on your computer and select “Screen Unlock” from the main interface. After that , you need to connect your Android phone to the computer using a USB cable.

Step 2: Choose “Android” > click “Unlock Android Screen” if you want to remove the lock screen. Choose your device brand. The hard reset methods vary for different device brands, so make sure that you choose the correct device brand.

Step 3: Put the Android phone into Specific mode with the help of Dr.Fone. And then, Dr.Fone will factory reset your Android phone within a few minutes. Now you can access your Android phone without a password!

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In this process, we will learn how to hard reset Android phone to factory settings from a computer using SDK. This involves removing all data from the Oppo A78 device using a PC.

Follow the given steps to know how to hard reset an Android phone using PC.

Pre-Requirements

• PC that runs on Windows (Linux/Mac installer is also available)

• You have to download Android ADB tools on your computer. Android ADB Download: https://developer.android.com/studio
• A USB Cable to connect your Oppo A78 with your computer.

Steps to hard reset Android using SDK

Step 1: Enable USB Debugging in the Android settings. Open Settings>Developer options>USB Debugging. If developer options can’t be found on the Oppo A78 device, then please go to Settings > General > About phone > Common > Software info (tap on it 5-8 times).

Step 2: Install Android SDK Tools. Ensure that Platform-tools and USB drivers are selected in the SDK manager window.

Step 3: Ensure that the drivers for your Android are installed on your PC or at least the Generic drivers are present

Step 4: Connect the Oppo A78 device to the PC using a USB cable. Ensure that the Oppo A78 device is recognized in the Windows Device Manager.

Step 5: Open the command prompt in Windows and go to C:\Users\Your username\AppData\Local\Android\android-sdk\platform-tools

Step 6: Type ADB reboot recovery and the Oppo A78 device will restart. The recovery menu must appear after this

Step 7: The device can be disconnected now. Now, you can remove the password or simply Factory Reset the Oppo A78 device.

Now, you have successfully reset your device using a PC.

Although the first process is the easiest, in certain cases, you might have to look for other options too. Kindly follow the steps thoroughly and format your device with ease.

Part 4: Hard reset Android using Android Device Manager (Find My Device)

When someone loses their phone, or it is stolen, the two questions that commonly arise are: how to locate the phone? And if it is not possible, how to remotely wipe the phone’s data? People can use the Android Device Manager (also referred to as “Find My Device”) and do the exact two things. The best thing about this is that it doesn’t need to be installed as it is inbuilt on all Android Devices.

Let us look at the following steps to know how to reset Android phones to factory settings from the computer.

Requirements for Android Device Manager to Work:

• It must be activated in the Oppo A78 device administrator settings. Go to settings > Security > Device administrators and check whether ADM is enabled as a device administrator or not.
• The location of the Oppo A78 device must be ON
• The device must be signed in to a Google account
• The device must have an active internet connection
• The device should not be switched off
• Even if the Oppo A78 device is without SIM, the Google account must be active

Steps to use ADM to wipe or locate any Android Device:

Step 1: Directly go to the Android Device Manager website , and log in to your account. You will get three options: “Play Sound”, “Secure Device” and “Erase Device”.

Step 2: Click on the “Play Sound” option will make it raise the alarm, notifying of the location, you can easily locate your Android phone if it is nearby.

Step 3: Click “Secure Device”, you can remotely lock your device with a new passcode, display a custom message on the lock screen, and even track the Oppo A78 device’s location in real-time. It also gives you the option to add a contact number, so anyone who finds your device can reach out to you.

Step 4: Select “Erase Device” to reset your device. Once you select this option, the interface will take over and complete the job. Congratulations! You have successfully used the Android Device Manager (ADM) to reset your Android smartphone.

The Bottom Line

So these were the third different methods through which you can hard reset your Android device. Resetting the Oppo A78 device involves removing every data from the Oppo A78 device. The phone gets back to the same state as it was out of the box. Hence, most importantly, do not forget to back up data using Phone Backup and restore beforehand so that you do not end up losing anything important.