How To Fix OEM Unlock Missing on Oppo F25 Pro 5G?

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.

Part 1: Why Is OEM Unlock Missing on Your Device?

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.

Developer Options Not Enabled

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.

Part 2: How To Enable Missing OEM Unlock Without a Password?

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 F25 Pro 5G device type for screen lock removal.

Step 3: Select Unlock Android Screen to proceed.

Step 4: Choose the brand of your phone from the supported brands.

Note:

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.

Part 3: How To Enable OEM Unlock Missing From 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 3: Tap on the Build number repeatedly (7 times) until you see a message saying, “You are now a developer!“ or similar.
Step 4: Go back to Settings > System and find the Developer options menu.
Step 5: Scroll down and tap the toggle switch next to Enable OEM Unlock to turn it on.

Step 6: A warning message explaining the risks of turning on the OEM unlock will appear. Read it carefully and tap Enable if you want to proceed.

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 F25 Pro 5G 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.

Conclusion

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!

Best Ways on How to Unlock/Bypass/Swipe/Remove Oppo F25 Pro 5G Fingerprint Lock

If you cannot remember your pin, pattern or password to access your Android device, this content will introduce you to the most effective method to handle the fingerprint lock, unlocking, bypassing and swiping in Android based gadgets. Your lock screen appears on your phone immediately after you turn your device on and it is there to save your privacy, data also to make your screen user-friendly and more functional. The additional material that definitely helps you to solve your limited access issue in your Android phone can be viewed here.

The Best Way to Unlock, Bypass, Swipe and Remove Android Fingerprint Lock

Dr.Fone - Screen Unlock (Android) is a highly straightforward, fast and handy phone unlocking software . With that particular application, you will be able to solve the lock screen removal issue in 5 minutes. It is really powerful as it can handle 4 types of screen locks such as password, fingerprints, pin and pattern. All you data will not be touched by the app and you do not have to possess some knowledge in tech field. So far, Dr.Fone - Android Lock Screen Removal is available for Samsung Galaxy S, Note and Tab Series and LG series for unlocking without any data losing.Temporarily, this tool can’t mantain all the data when unlocking the screen from other mobile devices including Onepus, Xiaomi, iPhone. However really soon, the app will be available for the users of other operating systems. Before you purchase it, you are free to try it. You can acquire the app for 49.95 USD. You will be getting advantage using this app as comes with free lifetime update, also you will receive the keycode in minutes. Comments and feedback on Dr.Fone - Android Lock Screen Removal can be viewed here. You definitely will be interested as the app has 5 stars rating and tons of positive feedback.

Dr.Fone - Screen Unlock (Android)

Remove 4 Types of Android Screen Lock without Data Loss

It can remove 4 screen lock types - pattern, PIN, password & fingerprints.
Only remove the lock screen, no data loss at all.
No tech knowledge asked, everybody can handle it.
Work for Samsung Galaxy S/Note/Tab series, and LG G2/G3/G4, etc.

4,230,631 people have downloaded it

Follow these steps to get your lock screen issue solved:

Step 1. Install Dr.Fone, then click “Screen Unlock”.

Step 2. Connect your Android phone and then select the Oppo F25 Pro 5G device mode on the list. If it’s not on the list, select “I can’t find my device model from the list above”.

Step 3. Type the download mode on your Android gadget.

Step 4. Have recovery package downloaded.

Step 5. Remove Android lock screen without losing any data.This process will take some times.

Remove Android Screen Lock

Best 10 Fingerprint Lock Apps for Android Gadgets

The lock screen app is a navigation screen that should be user friendly and allow you to jump quickly to those features that you actively use. For those, who want to make their smartphone screens much more functional and fun, we have prepared a list of best 10 Android Fingerprint Lock Apps and Widgets. The list that will be describing the apps will not be in the form of A Ranking or Top 10. The aim of our list is just to share with you those apps which are really good at handling the functions that we need from our gadgets.

1st - Hi Locker

This fingerprint lock for android devices comes with a 3 modes of lock screen: Classic, iOS and Lollipop. Also, it has a separate screen dedicated to your calendar. Cyanogen Mod Style quick launcher is the main feature of Hi Locker. The secondary characteristics include custom greetings, various fonts, automatic wallpaper changes and additional customizations using an arrow key.

2nd - ICE Unlock Fingerprint Scanner

This app is a real fingerprint lock for Android that features a true biometric lock screen solution. ICE Unlock is powered by ONYX that allows you to take a picture of your fingerprint using your standard phone camera. Now, it supports x86 CPU architectures and MIPS. Additional notable characteristics include auto-capturing and adjustment of ellipse size to achieve optimal focal length of camera among others.

3rd - Finger Scanner

One of many free to download Android Fingerprint Lock app is Finger Scanner. It offers 2 work modes: double protection and single. You can unlock by scanning or pin, also, it features different scanning times. Finger Scanner is highly customizable and you can use background and colors that you prefer. It immediately will turn your screen off whenever you cover the camera lens.

4th - GO Locker - Theme & Wallpaper

The total downloads of Go – Locker Theme & Wallpaper is close to 1.5 million which has made this app number one with close to 4.5 stars rating on googleplay.com. This real fingerprint lock for android allows you to read incoming messages on your screen, user friendly icons will quickly take you to systems and settings and it has a huge amount of unlocking styles such as Android, iPhone and those that you have never imagined. It successfully handles over 8,000 models of various Android powered gadgets.

5th - Locker Master- Do It Yourself (DIY) Lock Screen

Whether you prefer having simple or complex, solid or multi colored lock screens, Locker Master- DIY Lock Screen offers you tons of options to design the lock screen that will match to your desires. Swipe gestures options and passcode patterns are designed like never before. Be informed on incoming messages or missed calls on your lock screen, share your own lock screen style or download from a huge amount of themes which are being shared daily, worldwide. Locker Master- DIY Lock Screen is a free to download fingerprint lock app as many others that we are listing here.

6th – Start

With Start , your lock screen becomes into your Start screen. Right from the lock screen, you will have a quick access to the most of apps that you actively use. You can set the security level, enjoy simple but smart navigation characteristics noticeably faster. It is a real fingerprint lock for Android devices which can be your one-stop lock screen application.

7th – Solo Locker (DIY Locker)

This particular app is considered as the world’s first DIY that can lock your phone using a photo too. It is really smooth in functioning, lite and always ready to put your privacy onto higher level. Password interface is easily customizable and application shortcuts make your smartphone very easy to use. Solo Locker (DIY) Android fingerprint lock must be immediately downloaded by the people who would like to have an app that offers nearly uncountable wallpapers and design settings.

Out of all the apps that we have listed here, Widget Locker is the one that is not free to download. It will cost you 2, 99 United States Dollars and it has really attractive features such as a control of the mood and layouts of your smartphone. “Your privacy is the app’s number one priority” (that is what the designers of Widget Locker state). Drag and drop options, selectable sliders, Slide to Launch a Camera or Slide to call My Mom options and easy resizing of widgets are some of the really efficient features of this fingerprint lock app for android devices.

9th - M Locker - KKM Marshmallow 6.0

This real fingerprint lock app for android is known to the users as A Top Android 6.0 Lock application with numerous upgraded and developed features such as: a multi-functional lock screen, easy to navigate and simply comprehensive look. M Locker - KKM Marshmallow 6.0 includes a torch on your locker, easy but powerful swiping options, your music can be controlled from the locker and provides the snapshots of intruders who enters the wrong passcode continuously or will be placing his fingerprint for several times to log into your device.

10th - Fireflies Lock Screen

With over 300,000 downloads and the rate of 4.3 stars, Fireflies Lock Screen more than deserves to be downloaded and installed if you own one of those smartphones that comes with a fingerprint reader. In this app, you can change, resize, command and set almost everything the way you wish. Swipe to jump to a particular app or swipe to remove the notifications. Provides highest level of functionality and you have wide variety of options on locking your device or apps/widgets/folders. The most of comments given to this particular app describe it as “Best of its kind” and this characteristic makes it to be a real fingerprint lock for android devices.

The unlock method that was described in the beginning of our content, is the most functional approach to handle a lock screen problem successfully. In Non-Ranking and No-Comparisons form, we have presented you the list of best 10 fingerprint lock apps for Android devices. Each user is different and that is why there are various applications for your gadget. Try them out and find the one that suits you best!

How to Bypass Android Lock Screen Using Emergency Call On Oppo F25 Pro 5G?

The main reason why we keep our smartphone locked is to prevent children (or stalkers) checking out our private photos or messages. You don’t want anyone to access your pictures, emails, or other important data. What if you forget your pattern or PIN and cannot access your phone? Or someone changes lock screen pattern to leave you annoyed?

To avoid such types of conditions, we have tried and tested the following methods to bypass the Oppo lock screen pattern, PIN, password, and fingerprint.

Method 1. Use ‘Find My Mobile’ feature on Oppo Phone

All Oppo devices come with the “Find My Mobile” feature. To bypass the Oppo lock screen pattern, PIN, password, and fingerprint, you can just follow the below steps to get it done.

Step 1. First, set up your Oppo account and log in.
Step 2. Click the “Lock My Screen” button.
Step 3. Enter a new PIN in the first field
Step 4. Click the “Lock” button at the bottom
Step 5. Within a few minutes, it will change the lock screen password to the PIN so that you can unlock your device.

Method 2. Use Android Device Manager to Bypass Oppo Password

To know how to unlock a Oppo phone lock password with Android device manager, make sure the Android Device Manager is enabled on your device.

Step 1. Visit google.com/android/devicemanager on other smartphones or PC.
Step 2. Log into your Google account that you used on your locked device.
Step 3. Choose the Oppo F25 Pro 5G device you want to unlock in ADM interface
Step 4. Click on the “Lock” option.
Step 5. Enter a password. There is no need to enter any recovery message. Select “Lock” again.
Step 6. You would see a confirmation below if it is successful, with “Ring, Lock and Erase” buttons.
Step 7. Now you must get the password field on your phone where you can enter your new password, and your phone will be unlocked.
Step 8. Go to lock screen settings on your device and disable the temporary password.

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If your device is still running on Android 4.4 or lower, here’s how to bypass the Oppo lock screen fast.

Step 1. Enter the wrong pattern for five times
Step 2. Choose “Forgot Pattern”
Step 3. Enter your Google account login or backup PIN
Step 4. Now your phone would be unlocked.

Method 4. ‘Pattern Password Disable’ and Custom Recovery (SD Card needed)

To bypass the Oppo lock screen in this method, you ought to be an advanced user who knows what are “custom recovery” and “rooting”. You have to install any kind of customer recovery, and you should have an SD card on your phone. SD card is required to move a ZIP file to the phone, and it is the only way to transfer the file when the Oppo F25 Pro 5G device is locked.

Step 1. Download a zip file named “Pattern Password Disable” on your computer and move it to the SD card of your Oppo device.
Step 2. Insert the card on your device
Step 3. Restart your device into recovery mode.
Step 4. Flash the file on your card and restart the phone.
Step 5. Now your phone would boot up without lock screen. Don’t worry if you had a gesture lock or password. All you need to do is to input a random gesture or password, and it will be unlocked.

Method 5. Delete the Password File Using ADB

It is yet another option that will work only when you have enabled USB Debugging previously on your device, and your PC is allowed to connect via ADB. If you meet such requirements, it is ideal to use this method to unlock the Oppo lock screen.

Step 1. Connect your device to the PC using USB cable and open command prompt in the adb directory. Type the command “adb shell rm /data/system/gesture.key” and then press “Enter”.
Step 2. Restart your phone, and a secure lock screen must be gone, and you can access your device. Be sure to set a new PIN, pattern, or password before rebooting again.

Method 6. Factory Reset to Bypass Oppo Lock Screen

A factory reset is the best option in almost any case if one of these solutions couldn’t work. According to your device type, the process may vary. In most devices, you have to turn off the Oppo F25 Pro 5G device completely to start the process. But this method will delete all the precious data on the Oppo F25 Pro 5G device after the factory reset.

Step 1. Hold the power button and volume down at the same time. It will open the Bootloader menu.
Step 2. Press the volume down button two times to choose “Recovery Mode” and select it by pressing the “Power” button.
Step 3. Hold down the power button and tap “Volume Up” once, and you would enter “recovery” mode.
Step 4. Choose “Wipe Data/Factory Reset” option by using volume buttons.
Step 5. Select it by pressing the Power button.
Step 6. Select “Reboot System Now” once the process is done.

Backup your Oppo phone regularly in case of any data loss in the future.

Method 7. Boot into Safe Mode

Chances may be that you are using a third-party lock screen app. Then lucky for you, this way works best to bypass the Oppo lock screen. Specifically, you can boot your Oppo device into Android Safe Mode .

Step 1. Open up the Power menu from the lock screen and press and hold the “Power Off” option.
Step 2. It will ask if you want to boot in safe mode. Tap “OK”
Step 3. Once the process finishes, it will temporarily disable the lock screen activated by the third-party app.
Step 4. Uninstall the third-party lock screen or just reset the data.
Step 5. Reboot your device and get out of safe mode.
Step 6. Now the irritating lock screen app is removed completely.

Method 8. Other Methods

Step 1. Take your friend’s phone to call on your locked phone.
Step 2. Accept the call and press the back button without disconnecting.
Step 3. Now you can access the Oppo F25 Pro 5G device completely
Step 4. Go to the security settings of the Oppo F25 Pro 5G device and remove the pattern or pin.
Step 5. It will ask you the correct pin that you don’t know, guess, and try various combinations you can recall.

To avoid forgetting your password or PIN next time, be sure to write the pattern or numbers on a text file or paper to keep them safe. If you have to bypass the Oppo lock screen pattern, PIN, password, and fingerprint, you may consider using Dr.Fone - Screen Unlock (Android). It is a professional tool that can remove all the fingerprints, pattern, and password lock screens without losing any data on your phone.

Android Unlock

How To Fix OEM Unlock Missing on Oppo F25 Pro 5G?