How To Fix OEM Unlock Missing on ZTE Nubia Flip 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 ZTE Nubia Flip 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 ZTE Nubia Flip 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!

How to Unlock ZTE Nubia Flip 5G Phone Pattern Lock without Factory Reset

Have you been locked out of your Android device and can’t seem to recall its pattern? Do you wish to learn how to unlock an Android phone pattern lock without a factory reset to access someone else’s device? If your answer is “yes”, then you have come to the right place. Lots of readers these days ask us about a foolproof way to learn how to unlock an Android phone pattern lock without a factory reset. To help you, we have decided to come up with an in-depth guide on the same. Read on and learn in 4 different ways.

Part 1: Unlock the Android Phone Pattern with Lock Screen Removal Tool

If you are locked out of the phone because forgot pattern lock, and fail to enter the phone after many times try with the word “phone has been locked”. No need to worry, there are many solutions to fix the issue. And Dr.Fone –Screen Unlock (Android) can be your first saver in the dilemma. It is a highly efficient pattern lock removal tool for over 2000+ mainstream android phones, like Samsung, Oneplus, Huawei, Xiaomi, Pixel, etc.

Except for pattern locks unlocking, it works for the PIN, fingerprints, Face ID, and Google FRP bypassing as well. It’s helpful even if you don’t know the OS version of your devices. So, now follow the below steps to unlock the pattern and regain access to your locked phone in minutes.

Dr.Fone - Screen Unlock (Android)

Get into Locked Phones within Minutes

• Pattern, PIN, password, fingerprints & face screen lock can all be unlocked.
• Easily remove the lock screen; No need to root your device.
• Everybody can handle it without any technical background.
• Provide specific removal solutions to promise good success rate

4,008,669 people have downloaded it

Step 1. Download Dr.Fone –Screen Unlock on your PC or Mac.

Step 2. Connect your Android phone to the computer using a USB cable. Next, click the “Unlock Android Screen“ from the interface.

Step 3. Choose the model version according to your android phone. For people who don’t know the operating system version, tick the circle “I can’t find my device model from the list above”.

Step 4. Enter and download the recovery package as the instructions show on the PC or Mac.

Step 5. It will be finished when the recovery package downloading is completed. Then, click “Remove Now“.

Once the whole progress is over, you can access your Android device without entering any password and view all your data on the ZTE Nubia Flip 5G device with no limits.

safe & secure

Part 2: How to unlock the Android phone pattern lock without resetting using a Google account?

If you have an older Android device, then you can simply move past its lock by taking the assistance of your Google account. All you need is access to the same Google account that is linked to your device. Though, this technique will only work on devices running on Android 4.4 and earlier versions. To learn how to remove pattern lock on Android without a factory reset, follow these steps:

Step 1. Simply provide any pattern on the ZTE Nubia Flip 5G device. Since the pattern would be wrong, you will get the following prompt.

Step 2. Tap on the “Forgot Pattern” option located at the bottom of the screen.

Step 3. This will provide different ways to access your phone. Select the Google Account details and tap on the “Next” option.

Step 4. Sign in using the credentials of the Google account that is linked to your device.

Step 5. Great! Now you can simply provide (and confirm) the new pattern for your device.

After following these instructions, you would be able to learn how to unlock an Android phone pattern lock without factory reset or causing any harm to your device.

Part 3: How to unlock Android phone password without factory reset - Android Device Manager

The Android Device Manager, which is now known as “Find My Device” is one of the best ways to locate your Android device remotely. Besides that, you can also use the interface to ring your device or change its lock from anywhere. All you need to do is access its interface from any other device and log-in with your Google credentials. You can follow these steps to learn how to unlock the Android pattern lock without factory reset.

Step 1. Log in to Android Device Manager (Find My Device) using your Google credentials.

Android Device Manager website: https://www.google.com/android/find .

Step 2. From the interface, you can select the Android device that is linked to your Google account.

Step 3. You will get options to ring it, lock it, or erase it. Select the “Lock” option to proceed.

Step 4. This will launch a new pop-up window. From here, you can provide a new lock screen password, confirm it, and also set an optional recovery message or phone number (in case your device has been lost).

Step 5. Confirm your choice and save it to remotely change the lock screen password on your device.

In the end, you would be able to learn how to unlock an Android phone pattern lock without a factory reset after following these above-mentioned steps.

Part 4: How to unlock Android phone pattern lock without factory reset using ADB?

By using Android Debug Bridge (ADB), you can also learn how to unlock the Android pattern lock without a factory reset. Though, this is a more time-consuming and complicated process than other alternatives like Dr.Fone. Nevertheless, you can learn how to remove pattern lock on Android without factory reset using ADB with these instructions:

Step 1. To start with, you need to download ADB on your system. This can be done by visiting the Android Developer’s website https://developer.android.com/studio/command-line/adb.html .

Step 2. Afterward, launch the installer and download all the essential packages on your system.

Step 3. Now, connect your phone to the system. Make sure that its USB debugging feature is on.

Step 4. To do this, go to Settings > About Phone and tap the “Build Number” option seven consecutive times. This will enable the Developer Options on your device.

Step 5. Go to Settings > Developer Options and turn on the feature of USB debugging.

Step 6. After connecting your device to the system, launch the command prompt in the installation directory on your respective ADB.

Step 7. Type the command “ADB shell rm /data/system/gesture.key” and press enter.

Step 8. Simply restart your device and access it the usual way, without any lock screen pattern or pin.

Conclusion

Now when you know how to unlock the Android phone pattern lock without a factory reset, you can easily access your device in a trouble-free way. Out of all the provided options, Dr.Fone - Screen Unlock (Android) is the best alternative. It provides a fast, secure, and reliable way to unlock your device without causing any harm or removing its content. Go ahead and give it a try and share these solutions with your friends and family as well.

Unlocking Made Easy: The Best 10 Apps for Unlocking Your ZTE Nubia Flip 5G Device

Android phones are extremely popular, but many feel that the otherwise great operating system does not allow the kind of freedom they want. One of the frequently brought up problems is the lock screen and the unlocking mechanism itself. With a lot of phones, it can be quite sluggish and slow. There are many applications that change the lock screen both from a style and a functionality standpoint, and some of them are quite impressive. A quality Android unlock screen app allows you to customize it while possessing the main characteristics that you are looking for in any good application.

There are a lot of apps like that these days, and choosing between them is not always an easy task. Let’s take a look at the best 10 unlock apps for android.

Dr.Fone - Screen Unlock (Android)

Remove Android lock screen in 5 minutes

• Pattern, PIN, password, fingerprints & face screen lock can all be unlocked.
• Bypass Android FRP lock without a PIN or Google account.
• No tech knowledge asked, everybody can handle it.
• Unlock mainstream Android brands like Samsung, Huawei, LG, Xiaomi, etc.

3,981,454 people have downloaded it

1.Hi Locker

Hi Locker offers a similar style to CyanogeMod’s lock screen both from an aesthetics and functionality standpoint. It has all the looks of the most popular devices including Lollipop and iOS, as well as a second screen containing the calendar and many more goodness. If you are looking for unlock apps for Android, Hi Locker is clearly one of the best choices.

Hi Locker allows password and pattern unlocking.

2.Lok Lok

Lok Lok has a unique take on the locking screen application niche, allowing you to send drawings to people who use the same application. It has the basic functions of course but it really is only fan when others you know, use the same app as well. This fact kind of restricts this otherwise excellent application but the idea is genius. An Android unlock screen app that allows your creative side to shine through.

This Android unlock app doesn’t allow pin lock screen at the moment, it can be unlocked with the home button

3.Next News Lock Screen

When you are looking for unlock apps for android, you don’t necessarily think about reading the news, yet many times you would go to lengths to find them. What if the news you find the most interesting would appear on your lock screen? Would that be something you’d interested be in? If the answer is yes, this Android unlock screen app is for you.

Click here

## 4.CM Locker

A very interesting application with a slide-to-unlock feature that’s eerily similar to iPhone devices. The app allows you to control several main phone functions including but not limited to brightness, WiFi, sound or Bluetooth. One of the most versatile unlock apps for Android.

This android unlock app allows pin and pattern unlock, and it also has an intruder alert (the phone locks and takes a photo when somebody unsuccessfully tries to unlock it).

5.Slidelock Locker

Another app that takes advantage of Apple’s popularity by bringing in the “slide-to-unlock” mechanics and the general aesthetic qualities of the iOS home screen. In addition to possessing the basic functions, this Android unlock screen app also highlights messages.

6.Semper

This Android unlock app was once called UnlockYourBrain and it is quite unique in the way that it will make you work for your phone time. This may sound ridiculous at first, but actually a very clever idea and naturally emergency numbers can be called at all times.

Google Play link: https://play.google.com/store/apps/details?id=co.unlockyourbrain&hl=en

How to unlock : Solve a problem or an equation to unlock the screen.

7.Next Lock Screen

Next Lock Screen is a cross platform unlock app that’s compatible with the complete Android ecosystem, making it one of the most valuable unlock apps for Android on the market. As a Microsoft product, it likes to advertise some of their other applications but this feature can thankfully be turned off. The notifications are clearly Microsoft quality which is not necessarily something that can be said about your average Android unlock screen app.

How to unlock : Pin,swipe or pattern.

8.AcDisplay

AcDisplay comes with a rather minimalistic look similar to some of the most popular web site creator services like Squarespace or Wix. The home screen will highlight notifications for which it will offer two options, either you swipe down in which case you will ignore the notification, or swipe anywhere else and the lock screen will unlock. What’s really great about this Android unlock app is the fact that it can use your device’s sensors, allowing it to detect its placement therefore whether or not it should be on or off.

Google Play link: https://play.google.com/store/apps/details?id=com.achep.acdisplay&hl=en

How to unlock : You can swipe anywhere on the screen.

9.C Locker Pro

It would be unjust to call it an Android unlock app, this application is actually a carefully selected package that allows you to do a lot of cools stuff with your new and improved home screen. Not only it supports the usually methods of unlocking like swipe or patterns, but you can actually set double or even triple tap options which is quite unique and a very good idea. The app has every other usual options including setting your favorite apps or showing the lock, as well as the date and the temperature of course.

Google Play link: https://play.google.com/store/apps/details?id=com.ccs.lockscreen_pro&hl=en

How to unlock : This Android unlock screen app allows you to unlock the screen with swiping, patterns or even specific number of taps.

10. Echo Notificaiton Lockscreen

Another minimalistic design that works quite well, it also allows you to set different notification categories like “work”, “media” or “social”. Not only that, but you can also choose various apps to go with those categories. Messages come through as well of course, all with a “slide to unlock” feature that is so popular these days.

How to unlock : Slide right like you would with an iOS device.

Bonus Tips: Easily bypass Android Lock Screen/Google FRP on Android with Dr.Fone - Screen Unlock (Android) . It effortlessly resolves issues like lost Google accounts, forgotten PIN codes, and unlocking used phones. Supported mainstream Android brands like Samsung, Xiaomi, Vivo, etc.