How to Unlock Oppo A78 PIN Code/Pattern Lock/Password
## How to Unlock Oppo A78 PIN Code/Pattern Lock/Password
I have forgotten the pattern, PIN, or password needed to unlock my Oppo A78 smartphone. What should I do?
If you have a Oppo A78 phone and have forgotten the screen unlock PIN code, pattern lock, or password, you can still access it using some tried and tested tricks and hacks. This article will discuss 5 different ways on how to unlock Oppo A78 smartphone. Some methods might work without erasing your data, while others, like factory resetting, may erase all content from your phone. Regardless of which method you use, you will be able to unlock your phone! So, let’s get started!
## 1\. How to Unlock Oppo A78 With Google Find My Oppo A78?A way to unlock the Oppo A78 phone is via Google Find My Device feature. While this method can help unlock your phone, it erases all content from it.
For this method, you need a PC and your Google account details. Here are the steps for it:
Step 1: Open your browser and go to Google Find My Device on your PC.
Step 2: Log in to the Google account you used to set up your Oppo A78 phone.
Step 3: It will show you 3 options: Play Sound, Secure Device, and Erase Device.
And then select “**Erase Device.**”
Step 4: Now, you can access your phone without an unlock PIN or pattern and set a new one.
Use this method only if your phone is backed up so you can restore all your data later.
2. How to Unlock Android device Using Lock Remove Tool?
Another foolproof method on how to unlock Android pattern lock is by using a lock removal tool like Dr.Fone - Screen Unlock (Android) .
safe & secure
Dr.Fone - Screen Unlock is a screen unlock tool that can unlock your Android phone if you forget its screen unlock PIN, password, or pattern in just 5 minutes. It has a simple operation that requires just a few clicks to unlock your phone screen. Plus, this method is reliable, secure, and has a high success rate. However, there’s a possibility that it might not work with older phone models.
Dr.Fone - Screen Unlock (Android)
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Here are the steps to unlock Android phone using Dr.Fone - Screen Unlock (Android):
Step 1: Launch Dr.Fone on your PC and select the “Screen Unlock” option from the main page.
Step 2: Connect your phone to your PC with a USB cable. Now click on the “Android” > “Unlock Android Screen” option.
Step 4: Now, follow the instructions as you see to unlock your Android device.
Your phone is now unlocked, and you can access it without entering a PIN, password, or pattern.
Now, if you don’t remember your Google account details and don’t have access to a PC to use a screen unlock tool, you can unlock Android phone using the conventional way.
How to Unlock Oppo A78 with Google Account?
Almost all Android smartphones, including Oppo A78 , require you to enter your Google account details when setting up your phone for the first time. This includes the email, password, and security question. These details come in handy later on in situations where your phone is lost or stolen or if you’re switching to another phone. However, they can also help with basic issues like unlocking your phone in case you forget your Oppo A78 screen unlock PIN, pattern, or password.
You can unlock your Oppo A78 phone with Google Account in the following two ways:
- Using Google account details
- Using Google security question
Almost all Android smartphones, including Oppo A78 , require you to enter your Google account details when setting up your phone for the first time. This account comes in handy later on in situations where your phone is lost or stolen or if you’re switching to another phone. However, it can also help with basic issues like unlocking your phone in case you forget your Oppo A78 screen unlock PIN, pattern, or password. But to use this method successfully, you need to remember the email address bound to the Oppo A78 device and its password.
Here’s how to unlock the Oppo A78 pattern lock without losing data using your Google account:
- Step 1: Enter the incorrect PIN, pattern, or password 5 times, and click on “Forgot Password” or “Forgot Pattern.”
- Step 2: The interface will then ask you to enter your Google account details as an alternate option. Enter the Google account details you used when setting up your Oppo A78 phone.
- Step 3: This will unlock your phone. You can now reset the screen unlock PIN, password, or pattern.
If you don’t remember your Google account details, you can still unlock your Oppo A78 phone using a third-party tool.
Another way to unlock your Oppo A78 phone using Google is by answering the security question. When we set up our Google account, we usually choose a security question and an answer. This comes in handy if you want to recover your Google account, reset the password, or if you want to unlock your phone’s screen.
For the latter, here are the steps:
- Step 1: Enter the incorrect PIN or pattern to unlock your screen several times till you see the “Forgot Pattern” or “Forgot Password” option. Click on it.
- Step 2: Now select the “Answer Security Question” option and type in the answer.
- Step 3: Click on “Unlock” after which you will be asked if you want to set a new PIN or pattern. Select “Yes.”
- Step 4: Your Oppo A78 phone will be unlocked, and you can set a new PIN or pattern for your screen.
Hard resetting your smartphone usually solves everything! Hence, it can also help you unlock your Oppo A78 phone; however, using this method will erase all the data on your phone. So, if you still want to unlock Oppo A78 phone using this method, only do so if you have backed up your device and have no other way to unlock your phone. This includes forgetting your Google account details or not having access to a PC to download and use Dr Fone - Screen Unlock (Android).
Here are the steps for it:
- Step 1: Power off your Oppo A78 phone.
- Step 2: Press and hold the power and volume down button until the Sony screen appears.
- Step 3: The “System Recovery” menu will appear. Use the volume up and down button to scroll to the “Factory Reset” option. Use the power button to select this option.
- Step 4: Select “Yes” when asked for confirmation.
Your Oppo A78 phone will be hard reset, and all the locks will be removed. When you turn it on again, you will have to set it up like a new phone using your Google account details.
How to Unlock Oppo A78 with Oppo Companion?
If you’ve forgotten the screen lock of your Oppo A78 device, you can use Sony’s official software, Oppo Companion, to unlock your device. Oppo Companion is a reliable method that can help you regain access to your Oppo without data loss. Here’s how to unlock your Oppo A78 using Oppo Companion:
Step 1: Install and launch Oppo A78 Companion from the official website and click “Support Zone.” Move to the “Phone/Tablet Software Update” option on the next screen and tap “Start.”
Step 3: Allow the program to download files to prepare for the update process and choose your Oppo A78 model. Click “Next” and connect your Oppo A78 to the PC. Ensure that the phone is turned off, and press and hold the “Volume Down” button when connecting the cable to the phone.
Step 4: Once correctly connected to the PC, the program will download the necessary software and upload it to your device. After completing the process, you can unplug the Oppo A78 device and turn it on.
How to Remove Operator Lock on Oppo A78 ?
An operator lock, also called a carrier lock, constitutes a limitation imposed on a mobile phone by a network provider. This measure is implemented to guarantee that the Oppo A78 device exclusively functions with the services provided by that specific carrier. If you wish to remove the operator lock from your Oppo A78 device, you’ll need to follow specific steps and meet certain criteria. Here’s how to remove the operator lock on a Oppo A78 :
Step 1: Begin by checking whether your device can be unlocked or not from its network carrier restrictions. To do that, you need to dial the code “*#*#7378423#*#*” on your device, tap “Service Info” and select “SIM Lock.”
Step 2: Carefully check the information provided on the screen. If there is “X” before the “Network” option and the number in front of it is larger than 0, it means your device can be unlocked. If the number in front of “Network” is 0, your device can’t be unlocked as it is hard-locked.
Unlocking the bootloader on your Android device provides significant advantages. These actions encompass obtaining root access, installing custom ROMs, configuring custom recoveries, and carrying out advanced procedures. Here’s an essential guide on unlocking the bootloader of your Sony device while keeping all precautions in mind:
Step 1: To start with the process, verify the bootloader status for your Sony smartphone. On opening the “Dialer” app, dial the number “*#*#7378423#*#*“ and access the “Rooting Status” option within the “Service Provider” settings.
Step 2: If the bootloader status displays “Yes,” ensure that the Sony USB drivers and ADB tools are installed on your computer. Enable “USB Debugging” and “OEM Unlocking” on your smartphone and switch it off.
Step 3: Connect the Oppo A78 smartphone with a USB cable and press the “Power + Volume Up” keys for a few seconds. Open the Windows computer and access the “Devices and Printers” directory. Right-click on the “fastboot driver” file, select “Update,” and select the location of the “android_winbus.inf” file. Verify the fastboot connectivity through the CMD command.
Step 4: Open the official “Sony Unlocking Site” and add in the IMEI number. On acknowledging, use the commands as follows: adb reboot bootloader
Unlock the bootloader with the following command: fastboot oem unlock 0x<insert your unlock code
Verify the bootloader is unlocked and use the command to reboot the system; if not done automatically: fastboot reboot
Forgetting your Oppo A78 screen unlock password, PIN, or pattern is quite common. For such instances, there are several methods that you can use to unlock your screen, 5 of which we have discussed in this article.
If you’re looking for ways that are time-effective and reliable, you can use your Google account or other ways to unlock Oppo A78 and set a new screen lock. However, with these methods, you can lose your data, so we only recommend using them if your device is backed up.
## How To Fix OEM Unlock Missing on Oppo A78?Original Equipment Manufacturer (OEM) Unlock is a function on Android devices. It allows you to unlock your phone bootloader. A bootloader or bootstrap loader gathers the operating system files, loads them into memory, and hands over control, essentially starting your device. Unlocking the bootloader assists you in installing custom ROMs, flashing custom kernels, and rooting your phone.
However, this freedom comes with some trade-offs. Most manufacturers will void your warranty if you unlock the bootloader, and it can also make your phone face higher risks of malware and other security threats. Additionally, it can be difficult to relock the bootloader once you unlock it.
If you encounter the OEM unlock missing on your Android phone despite wanting to unlock your bootloader, this article can help. You will learn the step-by-step guide for the different methods to fix the missing OEM unlock option. Before diving into solutions, let’s explore why this option might be unavailable in the first place.
Finding that OEM Unlock is missing on your Android phones can be frustrating, particularly if you plan to modify your software or install a custom ROM. But don’t worry. There are several possible explanations for this. Let’s explore some of the most common reasons:
Manufacturer Restrictions
The Missing OEM Unlock option can often be due to restrictions imposed by your device’s manufacturers. They may intentionally remove this option to safeguard device security and compatibility. It is common with carrier-locked devices. As a result, the OEM Unlock option may not show.
Bootloader Already Unlocked
In some cases, the Android OEM Unlock Missing issue arises when the bootloader has already been unlocked. Relocking the bootloader might make the option reappear. But exercise caution as this process can erase device data.
It might seem obvious, but sometimes the simplest things get overlooked. The OEM Unlock option can only be accessed from within Developer Options. If this menu isn’t enabled, you won’t see it.
Carrier-Locked Devices
The OEM Unlock Missing issue can also occur if your device is carrier-locked. Carriers often impose restrictions to prevent users from switching networks, and bootloader unlocking is one way to do that. Unfortunately, the missing OEM Unlock option is usually intentional, and unlocking your device can be more complicated.
Security Features
Enhanced security features, like Samsung’s KNOX, can sometimes conceal the OEM Unlock option. Temporarily turning off these features might show the option, but it’s crucial to be aware of the potential security implications of doing so.
Corrupted Bootloader
A corrupted bootloader can also lead to the Android OEM Unlock missing problem. The bootloader plays a role in the boot process, and if it’s damaged, it might not display the necessary options. This can be caused by software glitches, failed flashing attempts, or even hardware issues. In this scenario, you might need to consult your device’s manufacturer or a technical specialist to help repair or re-flash the bootloader.
Connectivity Issues
A poor connection between your device and computer can also prevent the OEM Unlocking from showing up. Check your cables and try using different USB ports to ensure a stable connection.
Unlocking your phone’s bootloader (OEM Unlock) varies across models and brands. Some need a passcode or PIN after rebooting the phone, while others don’t. Even if your phone doesn’t require a separate password, your existing screen lock (password, PIN, pattern) will usually be needed to enable the missing OEM unlock option.
But what if you forgot that, too? Wondershare Dr.Fone - Screen Unlock can help bypass forgotten passwords and unlock your phone even if you don’t have the technical knowledge. Here’s a quick breakdown of its key features in this area:
- Success Rate
High success rate for bypassing various lock screen types, including PIN code, pattern lock, passwords, and fingerprints.
- Ease of Use
Provides a concise and intuitive interface that guides users with clear instructions and on-screen prompts.
- Comprehensive Features
Dr.Fone - Screen Unlock tool can remove the Android phone lock screen without resetting your Samsung or LG device. It can also help you bypass Google Factory Reset Protection (FRP) on mainstream Android brands.
- Extensive Device Compatibility
Aside from Samsung and LG, it covers a wide range of popular Android brands like Vivo, Huawei, Xiaomi, Oppo, etc.
Regain control in minutes with Dr.Fone. First, download the app to your desktop and install it. Once it’s up and running, launch Dr.Fone and prepare to unlock your device with ease. You’ll find detailed instructions below – even if you don’t know your phone’s lock screen, Dr.Fone has you covered.
- Step 1: Select Screen Unlock from the Toolbox homepage. Then, establish a connection between your locked Android device and your computer using a USB cable.
- Step 2: Specify the Oppo A78 device type for screen lock removal.
- Step 4: Choose the brand of your phone from the supported brands.
The following steps will vary based on your device’s manufacturer. Please refer to the instructions on your screen to proceed into Download or Recovery mode.
- Step 5: The screen unlock process is underway. If it encounters trouble, click Try Again. Once Dr.Fone successfully unlocks your Android device, tap Done.
Now that you’ve regained access to your device thanks to Dr.Fone - Screen Unlock, you can move forward with enabling the OEM unlock missing option. Next up, we’ll guide you through the steps in several ways. Let’s start with the Developer options.
Developer Options, a hidden menu in Android, offers advanced features like app debugging and custom ROM installation. But if the Android OEM unlock option is missing, you can’t unlock your device’s bootloader. Below is a step-by-step guide for you so the OEM unlock missing option will show in the Developer Options. Remember, this process may erase your device data, so a complete backup is essential before proceeding.
- Step 1: Open the Settings app on your Android phone.
- Step 2: Navigate to About Phone at the bottom of the list, then tap Software information.
- Step 7: Enter your PIN or password to confirm the unlock when prompted
- Step 8: Your device will reboot, and OEM Unlocking will be enabled.
Part 4: How To Fix OEM Unlock Missing by Adjusting Date and Time?
Some manufacturers intentionally delay the availability of the OEM unlock after a software update for security reasons. Changing the date to a past date before the update rolled out can trick the system into displaying the option, as it thinks the update hasn’t happened yet. It is a temporary fix, and the option will likely disappear again later when the Oppo A78 device automatically syncs the correct date.
If you intend to try this method, follow these steps to enable OEM unlock missing or greyed out after an Android update:
- Step 1: Open the Settings app.
- Step 2: Go to System or General management, depending on your Android version.
- Step 3: Tap on Date and Time.
- Step 4: Turn off Automatic date and time.
- Step 5: Tap on Set date and choose the desired older date from the calendar.
- Step 6: Tap on Set time and choose the desired time from the clock.
- Step 7: Tap on Done to save the changes.
- Step 8: Go back to the Developers options and turn off the Auto update system option.
- Step 9: Go to Settings > Software update, then turn off Auto download over Wi-Fi.
This method should enable the OEM unlock missing issue. Otherwise, proceed to the next section for another solution.
Part 5: How To Fix OEM Unlock Missing by Removing SIM Card?
Certain carriers restrict bootloader unlocking on their devices to ensure compatibility and prevent unauthorized modifications. For these phones, unlocking the SIM card becomes crucial before you can toggle the OEM unlock option. Here are the steps to fix the OEM Unlock missing or greyed out using SIM card removal:
- Step 1: Use the SIM ejector tool (often included with your phone) or a small pin to push the tray out.
- Step 2: Go to Settings > General Management > Reset, then select Factory data reset. Enter your PIN or password if needed.
- Step 3: Review the warning and tap Reset to confirm.
- Step 4: Once the reset is complete, your phone will restart. Connect to Wi-Fi when prompted.
- Step 5: Skip any prompts to log in to your Google or email account. Then, repeat the process to open the Developer Options in the previous sections.
Having the OEM Unlock missing or greyed out can leave Android users feeling locked out of customization possibilities. Fortunately, this article has outlined helpful solutions like enabling the Android OEM Unlock missing option via the Developer Options. You can also try other methods above, like adjusting date and time settings or even a sim card removal trick. For those facing forgotten lock screens, we’ve offered guidance on bypassing them using the Dr.Fone - Screen Unlock tool to access the necessary phone settings.
While these methods provide a solid foundation, it’s always wise to research steps specific to your phone model. And never forget – caution is key. If things get technical, don’t hesitate to seek help from online communities or professional repair services.
Tips: Forget your device password and can’t get access to it? No worries as Dr.Fone is here to help you. Download it and start a seamless unlock experience!
The Top 5 Android Apps That Use Fingerprint Sensor to Lock Your Apps On Oppo A78
In addition to passwords and patterns, the fingerprint scanner is one of the hottest features on leading phones of today to lock apps with fingerprint Android. The Fingerprint scanner is the latest fashion in smartphones. You would have observed that with fingerprint scanner going middle-of-the-road, many of the new low-priced phones have also been furnished with this new feature. Although the foremost purpose of the fingerprint scanner is to lock or unlock Your Oppo A78, it can also be utilized to lock and unlock your mobile applications. But not all phones are equipped with this feature. The aforesaid feature is easy to use, quick and smart.
However, if your phone has an inbuilt fingerprint scanner but it does not countenance you to lock the individual apps in your mobile with the fingerprint scanner, you do not need to worry at all! There are some apps that can add this option on your phone. And we are here to suggest you the 5 best options to lock apps with the fingerprint on your Android phones out of the many apps available in the app store! Here we go:
AppLock is rated as the best one of the apps for locking apps on your Android phone. Once you download this app you will notice that it can lock apps with fingerprint practically on your Android phone. It is also capable of locking photos and videos on your device. The app features are secured when you feel that someone is trying to stealthily look at the mobile while you are unlocking your Android phone. Apart from this, you will also get the option to replace the icon so that you are capable of hiding the app. Now the bonus –You can download and use this app absolutely free for locking the apps on your iPhone or Android apps using the fingerprint.
Features:
- Invisible pattern lock
- A virtual keyboard as security.
- Free application for all iPhone and Android users
- Interactive app features with flexible storage
- Minute versions are updated automatically.
URL for Android: https://play.google.com/store/apps/details?id=com.domobile.applock&hl=en
Google Rating: 4.4
2. App Locker: Fingerprint & Pin
The subsequent name on the list of best app locks using lock apps with the fingerprint on your Android phone is App Locker. Most of the functions and features of this app are similar to the app lock. This lock apps with fingerprint iPhone have a tricky feature though, want to know? This naughty app, along with the app lock facility (using PIN, password, or fingerprint sensor), can trigger a sham crash screen which will trick the impostors to think that your phone is crashed! Isn’t it interesting? One more thing to interest you – it is also free to download and use.
Features:
- You can lock your galleries, social media apps, message app using a pin.
- The Applock has a feature to take the picture of unknown users if they tried to open up your Android phone.
- You can set up a fake app pattern.
- Possibilities to lock according to time session.
- The lock engine is updated instantly.
URL for Android: https://play.google.com/store/apps/details?id=com.gamemalt.applocker&hl=en
Google Rating: 4.5
The next on the list is FingerSecurity - one of the feature-rich lock apps with fingerprint Android available for free download for your Android phones. You can lock practically any application with the help of FingerSecurity. In addition, it also has the knack to unlock multiple apps on a single go. If you are among those few people who have many locked apps, you are going to like this a lot! But one thing that you cannot negate is that despite the app being locked, the intruders may get a chance to view what is inside through the notifications. But Fingersecurity has an answer to this also – it has added a new notification locking feature!
Features:
- The widgets are equipped with enabling and disable services.
- Settings for the apps are customized.
- Apps are designed to prevent uninstalling.
- Fingerprints are hidden using UI.
- Protection for newly installed apps.
URL for Android: https://play.google.com/store/apps/details?id=com.rickclephas.fingersecurity&hl=en
Google Rating: 4.2
Whenever we have heard the word anti-virus, the first name that comes to our mind is Norton. Norton is a big shot in the field of antivirus apps. Now they have also come up with free lock apps with fingerprint Android. It involves a four digits PIN or password or pattern as its lock system. It also supports icons and photos in conjunction with the apps. The app suggests you with the sanctions list which tells you which apps should be locked. Again the bonus – this is free for download on any Android devices.
Features:
- Gizmo for users who expect a more noninterventionist.
- Take the photo of illegitimate intruders.
- Solid lock apps with fingerprint iPhone.
URL for Android: https://play.google.com/store/apps/details?id=com.symantec.applock&hl=en
Google Rating: 4.6
Perfect App Lock is yet another great lock apps with the fingerprint for Android from the basket of app locks. Like other app locks, this one also features the basics. In addition, it has special features including support for locking Wi-Fi, Bluetooth, and other buckles. It is a tough one to intrude. It tricks the bye passers-by throwing out fake errors and messages to confuse the intruders. This rather makes the thief think that there is a different issue with the phone excluding the app lock. This lock app with fingerprint Android is also available for free. The free and the paid versions offer the exact same features, except that the paid version is free from advertisements.
Features:
- Multi-windows applications are visualized.
- The sensor will support whenever you unlock apps.
- Free updating and monetizing are available.
- No limitations are applicable.
URL for Android: https://play.google.com/store/apps/details?id=com.morrison.applocklite&hl=en
Google Rating: 4.5
Do you know of any other apps which can offer similar or even better features?
Do share them with us!!!
Now since we have told you about the best lock app with a fingerprint for Android that can be used to lock your apps and phone using fingerprint sensors, go ahead downloading one for your device. You can understand the pros and cons by yourself and enjoy the benefits of your downloaded app. You have got the list of five of the best fingerprint scanner apps which are available on the play store. If you have any suggestions you are most welcome to contact us.
Do not forget to share your experiences with the apps mentioned in our article. We are waiting for your response!!!
- Title: How to Unlock Oppo A78 PIN Code/Pattern Lock/Password
- Author: Aaron
- Created at : 2024-09-07 00:46:15
- Updated at : 2024-09-08 00:46:15
- Link: https://easy-unlock-android.techidaily.com/how-to-unlock-oppo-a78-pin-codepattern-lockpassword-by-drfone-android/
- License: This work is licensed under CC BY-NC-SA 4.0.