Reliable User Guide to Fix OnePlus 12 Running Slow and Freezing

Android smartphones have opened a lot of doors for their users. They continue to evolve year after year with the hope of giving the world a wonderful digital experience. So far, we can all agree that they’re going the extra mile and doing a really great job. Android phones today are all packed with supreme capabilities that are beneficial to everyone.

However, Android phones are still not close to perfect. They also act up sometimes and cause a stir. Some users have observed that the Android phone is running slow and freezing over time. There can be many potential reasons why Android phone runs slow suddenly. But it doesn’t mean it cannot be restored at all to its original state and function.

In this article, we will review the details of this Android phone issue. We’ll provide solutions you can try if you ever get caught in the same problem. Continue reading to learn more.

Understanding the Specs That Make Android Phones Run Fast

The issue of Android phone running slow and freezing is not limited to old devices only. The same problem has also been observed in newly purchased units. The roots of this unfortunate occurrence vary from one user to another. It depends on different elements, from external factors like users’ handling of the OnePlus 12 device to internal factors such as its capabilities. To understand it more, below are some Android phone specifications related to the OnePlus 12 device’s overall performance and speed.

The CPU Core Count

Unlike before, Android phones today are equipped with several cores. Each of them has the ability to execute a process alone. Therefore, the OnePlus 12 device can handle two or more tasks at once without compromising the quality of its performance. If your OnePlus 12 contains more CPU core, its performance surely be more powerful and speedy.

The CPU Clock Speed

Simply put, clock speed is basically the speed at which the CPU cores can carry out a cycle in a second. A faster clock speed definitely translates into the OnePlus 12 device’s higher performance. For instance, an octa-core Android phone with a one GHz per second clock speed is a decent device. But it’s less powerful than a device with the same number of cores but runs at two GHz per second.

Random Access Memory

In a simple language, Random Access Memory (RAM) temporarily stores the data from apps that are currently running. Smartphones can be more flexible with multi-tasking if their RAM has enough space. So if you’re among these users who perform multiple tasks simultaneously, you better choose a device with more RAM.

Internal Storage

The mobile applications installed on your smartphones are directly related to internal storage. The apps save their data every time, so they behave strangely when the OnePlus 12 device runs out of storage. If you’re using heavy mobile applications, it’s best to opt for smartphones with huge internal storage.

Reasons Why My OnePlus 12 is Running Slow

It’s not really hard to tell why your OnePlus 12 is slow because it’s apparently a common issue among users. But don’t worry. Most of the time, the problem is not a major concern. Here are some scenarios that may slow down your OnePlus 12s.

Overloading Background Processes

It’s great to have an Android phone that can flawlessly multi-task. However, not all units can handle that well. As mentioned earlier, it depends on the CPU core count and the core’s clock speed. If your OnePlus 12 is running slow and freezing, many processes may be happening at the same time. Your device’s cores and clock speed are potentially incapable of executing such demands.

Your Phone is Running Out of Storage

Mobile apps need to save data on your phone. They perform the tasks based on the data stored on the OnePlus 12 device. So if your OnePlus 12 is slow, it’s possible that your device is already running out of storage. Each app has its own storage requirement. If your phone goes below that, the app will surely crash and not work.

Animation Speed is Way Too Slow

You can modify the OnePlus 12 device’s animation type and speed on your OnePlus 12 via the developer’s option. However, altering its default settings can sometimes make the Android phone run slow. If the speed is set slower, more delays are added to the animation. Hence, it takes a while for Your OnePlus 12 to launch an app or complete a certain process.

You’re Using an Outdated Android Version

If your OnePlus 12 is running slow and freezing, the OnePlus 12 device’s software is probably outdated. The mobile apps installed on your device are lagging or crashing because they’re no longer compatible with the OS. It happens most of the time. Hence, always watch out for OS updates.

Your Phone is Experiencing Some System Issues

Operating systems and device software serve as the main component of all smartphones. Sometimes, it runs into inevitable problems caused by computer bugs and other glitches. When it happens, the OnePlus 12 device’s overall performance is affected. So that can be the reason why sometimes your OnePlus 12 is running slow and freezing.

Your Internet Connection is Unstable

Of course, a slow internet connection can make the Android phone runs slow too. Most apps today rely heavily on the internet to execute some tasks like communicating and streaming. So don’t panic when your OnePlus 12 is running slow and freezing. It’s possible that your internet connection is messing up with you.

What to Do When My OnePlus 12 Lags?

It’s not as bad as the black screen of death when the Android phone runs slow. However, it can still cause some delays and inconvenience for users. So it’s really important to take action when you notice some anomalies with its speed and performance. Below are some remedies that can help you get rid of this issue.

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Solution 1: Reboot Your Phone

Sometimes, minor bugs can give your device a hard time. It can be the reason why your OnePlus 12 is running slow and freezing. If that’s the case, rebooting your phone might help a lot. Here’s how to do it.

Step 1: For seven seconds or more, hold the Power and the Volume Down button together.

Step 2: Several options will manifest on the screen. From there, click Restart. Wait until your device completely shuts off and restarts again.

Solution 2: Uninstall the Unused Apps to Free Up Some Storage

If your OnePlus 12 is running slow and freezing, it’s likely because you’re running out of internal storage. You may uninstall the apps you rarely use to free up some space. Here’s how to do it.

Step 1: On your home screen, find the app you wish to uninstall. Hold its icon until an option list appears.
Step 2: Click Uninstall.

Step 3: Click Ok if it asks you to confirm the action.

Wait until the app icon disappears from the home screen.

Solution 3: Set the Animation Speed a Little Faster

Altering the animation speed is not that dangerous. However, it can sometimes interfere with the OnePlus 12 device’s smoothness if set too slow. If your OnePlus 12 is running slow and freezing after modifying this setting, try to re-adjust it a little faster. Here’s how to do it.

Initiate the following steps first to enable the developers option on your device. Skip this if you have already activated the developers option:

Step 1: Go to Settings.
Step 2: Find the About Phone option. Click on it.

Step 3: Find the Build Number. And then click on it seven times.
Step 4: Enter your lock screen passcode if necessary.

Follow these steps to adjust the animation speed:

Step 1: Tap Settings from your home screen.
Step 2: From the given options, find and click Systems.
Step 3: Click Developers options.
Step 4: Under the Drawing section, you’ll find the following animation scale settings: Window Animation Scale, Transition Animation Scale, and Animator Duration Scale. Adjust the speed of these three options to 0.5x.

Solution 4: Update Your Phone to the Latest Android Version

It’s always recommended to update your phone to the latest Android version. Aside from repairs to some system errors, it also keeps your phone compatible with mobile apps. An outdated operating system can be the reason why your OnePlus 12 runs slow, and the apps are freezing. Don’t worry. It’s very easy to perform. Here’s how to do it.

Step 1: First, ensure your internet connection is strong and stable to avoid unwanted interruptions.
Step 2: Go to Settings.
Step 3: Click About Phone.
Step 4: Click Check Now for Update. If there’s new software available, it will automatically appear on the screen.
Step 5: Click Install Now. Depending on your device, it will restart itself after the installation process.

Solution 5: Reset Your OnePlus 12 to Factory Settings

One way to restore the original performance of your OnePlus 12 is to revert it back to factory settings. It deletes all the phone’s data and adjusts the settings to default. Most of the time, this procedure works magic. It fixes numerous issues, including the Android phone that’s slow and constantly freezing. But ensure your phone has already been backed up before commencing this step. You may use Wondershare Dr.Fone to help you back up and secure your files.

Here’s how to back up your OnePlus 12 using Wondershare Dr.Fone:

Step 1: Download Wondershare Dr.Fone from its official website. And then install it on your desktop.
Step 2: Launch the application on your computer.
Step 3: After it fully loads, connect your OnePlus 12 to your computer.
Step 4: From the main dashboard, find and click Phone Backup. Ensure your device is in USB Debugging mode.

Step 5: Check the files or data you wish to back up. Right after, click Backup.

Here’s how to reset your OnePlus 12 to factory settings:

Step 1: Go to Settings.
Step 2: Click System.
Step 3: Click Reset Options.
Step 4: Click Erase All Data (Factory Reset).
Step 5: Your Android phone will inform you about the data that will be deleted from this procedure. From there, click Reset Phone.
Step 6: Your Android device will ask you to confirm the procedure. From there, click Erase Everything.

Solution 6: Fix the System Issue Using Wondershare Dr.Fone

The device’s operating system may sometimes run into unexpected problems. That can make your OnePlus 12 performs slow. System issue is not a terrifying scenario at all. Thanks to Wondershare Dr.Fone, which provides instant repair to this kind of mobile problem. Here’s how to use it in easy steps.

Step 1: Launch the Wondershare Dr.Fone application on your desktop. And then connect your OnePlus 12 to your computer.
Step 2: Click System Repair from the main dashboard or Toolbox section.

Step 3: Click Android.

Step 4: Wondershare Dr.Fone will give you a list of the Android problems that this procedure will fix. From there, click Start.

Step 5: Wondershare Dr.Fone will ask you to confirm your device details. Review the listed details for Brand, Name, Model, Country, and Carrier. Amend them if necessary. Tick the checkbox beside the Note if you agree to the terms. Lastly, click Next to proceed.

Step 6: At this point, you need to put your device into Download Mode. Power off your device. And then hold these three buttons altogether: Volume Down, Home (or Bixby if you’re using a newer model), and Power buttons. Finally, press the Volume Up button.

Step 7: Wondershare Dr.Fone will automatically download the firmware that matches your device’s specifications. Wait until the process has been completed.

Step 8: Thereafter, the details about the newly downloaded firmware package will be displayed on the screen. From there, click Fix Now.

Step 9: Before initiating the installation process, Wondershare Dr.Fone will ask you to review and confirm the firmware details. It will also let you know that this procedure will erase the phone’s data. If you agree to the terms, enter 000000 into the input box and click Confirm.

Step 10: Wait while Wondershare Dr.Fone installs the new firmware to your device.

Step 11: A notification will immediately appear after installing the new firmware. Click Done if your phone starts normally. Otherwise, click Try Again to repeat the process.

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Conclusion

Android phone is capable of performing lots of stuff. It can assist you in both your personal and professional tasks. But if it’s sluggish and doesn’t execute optimally, the good things it promises all go down the drain. So if you notice that your OnePlus 12 is running slow and freezing, act fast to resolve the issue. Wondershare Dr.Fone can be of great help in this kind of situation. It’s an all-in-one mobile solution that can assist you with system repair, phone backup, data recovery, and a lot more.

How To Revive Your Bricked OnePlus 12 in Minutes

OnePlus 12 has established a notable presence within the custom development arena. This trait holds for OnePlus 12. Today, it’s still one of the most popular budget smartphones available. The popular smartphone offers the freedom to flash custom ROMs, attain administrative privileges, access countless customization options, and much more.

Yet, delving into these capabilities comes with its share of risks. The potential for your OnePlus 12 to brick is high if you don’t know what you’re doing. This page teaches you how to unbrick your OnePlus 12 if it happens.

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Part 1. Potential Causes of a OnePlus 12 Becoming Bricked

The factors that lead to your OnePlus 12 to brick vary. The possible solutions also depend upon the underlying causes. At times, the manufacturer’s intervention remains the only viable remedy. Below are the most frequent causes of bricking.

The presence of malicious malware can harm your OnePlus 12. This can result in a ‘bricked’ state devoid of functionality.
Altering the bootloader, system partition, or other critical software components risks triggering a bricking event.
Bricking can also occur due to errors during the update process. Whether through automatic or manual downloads, any interruption during software updates can cause your OnePlus 12 to brick.
Using inappropriate methods when performing root access can also result in bricking. Performing root access is dangerous as it grants entry to the OnePlus 12 device’s root directory housing the operating system.

Every Android device is susceptible to experiencing a system failure that leads to a bricked state. The risk remains consistent whether your device is from OnePlus 12, OnePlus 12, OnePlus 12, or any other brand. That’s why it’s strongly advised against modifying their smartphones, especially when you don’t know what you’re doing.

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Part 2. Techniques To Unbrick a OnePlus 12

When faced with a bricked OnePlus 12, below are various techniques to revive it. Whether through software resets or hardware interventions, these methods can help breathe life back into your device.

Discharge the Battery

A particular suggestion involves allowing the OnePlus 12 device’s battery to discharge fully, enabling proper functionality of the Flash Tool software. This process typically spans a few days and is recommended by some specialists.

Perform a Factory Reset

Accessing the OnePlus 12 device settings is impossible if your OnePlus 12 bricks. For this reason, it is recommended to enter Recovery Mode. Here’s how.

Step 1: Press and hold the Power button and select the Restart option. During the reboot, press the Volume Up and Power keys simultaneously.

Step 2: The main menu will show three options: Reboot, Wipe Data, and Connect with MIAssistant. Choose Reboot.

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Explore Dedicated Software Tools To Fix Bricked Phones

OnePlus 12 offers its official software tools, such as the OnePlus 12Flash Tool. It’s designed for advanced users familiar with flashing firmware onto their devices. Here’s how.

Step 1: Download and install the OnePlus 12Flash Tool .

Step 2: Download the Stock Firmware of OnePlus 12 and extract it on your computer. Press and Hold the Power and Volume Down buttons for at least 5-10 seconds to enter Fastboot Mode.

Step 3: Connect your OnePlus 12 to the computer using a USB cable. Launch OnePlus 12Flash Tool and locate the Firmware you have downloaded on the computer. Click the refresh > flash to begin the flashing process.

Step 4: The SUCCESS result should appear in the OnePlus 12Flash Tool once the flashing process is done.

However, if the OnePlus 12Flash Tool did not unbrick your OnePlus 12, consider using Wondershare Dr.Fone - System Repair (Android). The platform allows you to unbrick your OnePlus 12 with a few clicks.

Part 3. Reviving Your OnePlus 12 Using Wondershare Dr.Fone - System Repair (Android)

Dr.Fone - System Repair (Android) equips OnePlus 12 users with the ability to tackle soft brick and hard brick issues. This specialized Android repair tool enables you to restore your OnePlus 12 through a streamlined process, requiring just a few simple clicks.

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Key Features

Dr.Fone - System Repair (Android) offers several benefits to unbrick your OnePlus 12 easily. Below are its key features.

Fix Common OnePlus 12 Problems in Minutes. This tool provides comprehensive solutions for common issues like black screen, Play Store not working, boot loops, or even bricked Android devices .
Compatibility with Over 1000 Android Models. This app fixes glitches across modern Android devices. The software is compatible with an extensive range of models. Whether your OnePlus 12 is unlocked or carrier-bound, restoration is not a problem.
Unparalleled Software Flexibility. Dr.Fone - System Repair (Android) also boasts an added capacity to mend iOS devices. This versatile tool is your all-inclusive solution for mobile devices, ensuring convenience whether you own an iOS or Android device.

Advantage of Dr.Fone - System Repair (Android) for Unbricking OnePlus 12

Here are three benefits to choosing Dr.Fone - System Repair (Android) for unbricking a OnePlus 12. You’ll further believe Dr.Fone is a reliable assistant when reviving your bricked OnePlus 12.

Simplified Firmware Management

Dr.Fone eliminates the tedious search for appropriate firmware when unbricking your OnePlus 12. The platform automatically downloads the correct firmware for your device. The hassle of identifying and manually procuring firmware is removed, saving time and ensuring a smoother unbricking process.

User-Friendly Approach

One of Dr.Fone’s key strengths is its user-friendly design. It caters to users with varying levels of technical expertise by employing a step-by-step process. This approach guides users through the repair process with clarity. It reduces the requirement for advanced technical knowledge.

Free Version for Evaluation

Dr.Fone - System Repair (Android) offers a free version for everyone. It allows users to test its capabilities before committing to a purchase. This trial version grants users the opportunity to assess the tool’s effectiveness and suitability for unbricking their OnePlus 12. This instills confidence before investing in a full license.

How To Unbrick OnePlus 12 Using Dr.Fone - System Repair (Android)

Dr. Fone’s features are perfect for unbricking OnePlus 12 devices. Below are the procedures to restore your OnePlus 12 from its bricked state.

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Step 1: Download and install Dr.Fone - System Repair (Android) on your computer. After launching the application, click System Repair. Then, click Android as the OnePlus 12 device type. Connect your OnePlus 12. Indicate Phone Brick as the Android issue and initiate the process by clicking Start.

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Step 2: Select the appropriate device information corresponding to your OnePlus 12. Choose Brand, Name, Model, Country, and Carrier. Confirm by checking the I agree button, then proceed to the next step by clicking Next.

Step 3: Given that the OnePlus 12 lacks a Home button, click the Phone without Home button option. Follow the prompts displayed on-screen and proceed by clicking Next to initiate the process of restoring your bricked phone.

Step 4: As your OnePlus 12 enters Download Mode, the firmware download will start automatically. Follow the on-screen instructions. Wait for the system to initiate the repair procedure automatically. Upon completion, a message will pop up on the main window. Click Done to exit the tool. You can click Try again to repeat the process if needed.

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Conclusion

Don’t let a bricked OnePlus 12 stand in your way. Use the array of techniques from basic troubleshooting to advanced software tools to breathe life back into your device. Unbrick your OnePlus 12 to its full functionality using the methods provided or Dr.Fone’s adept assistance.

Lastly, you can still refer to OnePlus 12 for repairs. It remains the primary solution in numerous cases. Utilizing your warranty can alleviate the associated costs. Seeking assistance from a specialized technician is also a viable route to consider for a thorough device assessment.

How to Quickly Fix Bluetooth Not Working on OnePlus 12

One of the key features of an Android device these days is the Bluetooth technology. This is such an important part of the phone that many of us take for granted, but as soon as the feature stops working, it can cause all kinds of problems.

Fortunately, despite there being many reasons why a problem could occur to your Bluetooth feature, there are also plenty of fixes. Today, we’re going to share with you the complete guide that details everything you need to know to get your Bluetooth up and running once again as quickly as possible.

Let’s get straight into it!

Part 1. About Bluetooth Not Working on Android

Of course, the most common problem to occur with Bluetooth technology in your OnePlus 12 is when it doesn’t connect to the OnePlus 12 device you’re trying to link it to. This could be anything from a Bluetooth headset or headphones, to a portable speaker or even an in-car audio system.

However, the problems don’t stop there. You may have problems with turning your Bluetooth settings on through your actual device. Perhaps the software simply isn’t loading, or maybe the Bluetooth feature keeps turning itself off randomly.

Due to the complicated nature of Bluetooth technology, there could be many reasons as to why your Bluetooth feature is playing up in this way, but that doesn’t mean it can’t be fixed. For the rest of this guide, we’re going to explore the nine need-to-know ways you can fix the Bluetooth problems not working on your OnePlus 12 as quickly as possible.

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Part 2. 9 fixes for Bluetooth not working on Android

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2.1 One click to fix Android Bluetooth issues due to Android system

Since Bluetooth is an internal technology, this indicates there’s a problem with the software or firmware of your OnePlus 12. If something’s broken, this means you need to fix it. Fortunately, there’s a quick and easy way to do this using software known as Dr.Fone - System Repair (Android).

Dr.Fone - System Repair (Android) is a powerful Android repair tool which is hailed as many as being on the best software applications in the industry. With all the tools you need to repair your phone not just for Bluetooth errors, but basically any internal firmware problems, this is a one-shot-tool that gets the job done.

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To ensure you have the best experience while using the Dr.Fone - System Repair (Android) software, here’s a complete step-by-step guide on how it works when fixing your Android’s Bluetooth problems.

Step One Make your way over to the Wondershare website and download the Dr.Fone - System Repair (Android) software to either your Mac or Windows computer. Install the downloaded file by following the on-screen instructions. Once installed, open the software, so you’re on the Main Menu.

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Step Two Connect your OnePlus 12 to your computer using the USB cable, wait a couple of seconds, and then click the System Repair option. On the Menu on the left, click Android Repair, and then press Start.

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Step Three Next, use the drop-down menus to make sure all the information about your specific device is correct, including your device, operating system number, and carrier information. Click Next to confirm your selections.

Step Four When prompted, put your phone into Download Mode needed for repairs. You can do this by following the on-screen instructions which will depend on which device you have and the available buttons.

Step Five The software will now begin the repair process. This will happen automatically, and all you’ll need to do is make sure your device doesn’t disconnect during this process, and your computer doesn’t turn off.

When the repair process has been completed, you’ll receive the screen below, which means you can try again if the process didn’t work, or you can disconnect your OnePlus 12 and start using it and your Bluetooth features.

2.2 Restart Android and turn on Bluetooth again

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One of the most common solutions in technology is simply to turn it on and off again, which is the case to happen here. By restarting your device, you can clear out any problems you may be suffering from to help it get up and running again. Here’s how;

Turn your OnePlus 12 off by holding down the Power button
Wait for several minutes and then turn your phone on again
Wait for your phone to completely power up, so you’re on the Main Menu
Navigate Settings > Bluetooth and then enable the setting
Try to connect your Bluetooth device to what you were trying to do before

2.3 Clear the Bluetooth cache

Every service on your OnePlus 12 using a feature called a cache. This is where information is stored to help the feature run properly and give you the best experience. However, over time this can get messy and can cause problems with your Bluetooth feature.

By clearing the cache, you can restart the service and hopefully clear up any issues or problems you may be experiencing.

On your phone, navigate Settings > Application Manager, and you’ll see all the apps and services on your phone. Locate and select the Bluetooth service.
Select the Storage option
Tap the Clear Cache option
Go back of the Menu and restart your phone
Now turn your Bluetooth feature on and turn connecting it to your preferred device

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2.4 Remove paired devices

Sometimes, you may have a problem with the OnePlus 12 device you’re trying to connect to via Bluetooth, especially if this is a device you’ve updated. To counter and repair this, you’re going to need to remove the paired devices saved with your device and then reconnect them.

Here’s how;

From the Main Menu of your OnePlus 12, head to Settings > Bluetooth > Connected Devices.
Turn Bluetooth on, and you’ll see all the connections your OnePlus 12 is paired with
Go through these settings and remove/delete/forget every connection on your device
Now when you go to connect to a device using Bluetooth, repair the OnePlus 12 device, enter the passcode, and use a fresh paired connection.

2.5 Use Bluetooth in safe mode

If you’re having problems with your connection and paired devices, sometimes you may have conflicting software faults in your device that are causing the problems. If this is the case, you’ll need to boot your OnePlus 12 in Safe Mode.

This is an operating state in which your phone will run the bare minimum services it needs to perform. If your Bluetooth works in Safe Mode, you know you have an app or a service that’s causing the problem.

Here’s how to find out;

Hold the power button down, so the Android power menu turns on
Long-press the power button again and the restart in Safe Mode option will come up
The phone will automatically boot into Safe Mode
Wait a minute on the Main Menu
Now turn on your Bluetooth and connect it to your preferred device

2.6 Turn on the discoverable feature

To ensure your Bluetooth can connect to other devices, it’s important to make sure you’re making your device discoverable to other Bluetooth devices. If it’s hidden, other devices won’t be able to find it, and sometimes it can bug and prevent connections.

Here’s how to turn on your Bluetooth discoverable feature;

From the home screen of your Android, navigate to the Menu> Settings > Bluetooth
Toggle the Bluetooth switch, so it’s on
Under the available settings, tick the box that allows your Bluetooth device to be discoverable
Turn your Bluetooth feature on and connect to the OnePlus 12 device you’re trying to connect too

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2.7 Exclude Bluetooth issues of the other device

Sometimes, you might not even have a problem with your OnePlus 12, but rather the Bluetooth device you’re trying to connect to, whether that’s a Bluetooth speaker, an in-car entertainment system, or any other kind of Bluetooth device.

By testing out another Bluetooth device to see if it will work with your preferred device, you can rule this out from being the issue.

Disconnect your OnePlus 12 from the Bluetooth device and turn your Bluetooth off
Now take another Bluetooth device and connect this to the OnePlus 12 device you’re trying to connect too. This could be another Android device, or even a computer or iOS device
If the new device doesn’t connect to your Bluetooth device, you’ll know there’s a problem with your Bluetooth device, not your OnePlus 12
If the OnePlus 12 devices connect, you’ll know there’s a problem with your OnePlus 12

2.8 Place both devices within close proximity

One of the common misconceptions of Bluetooth is just how far the wireless range is of the service. You need to make sure your devices are well and truly close to each other to make sure a stable connection can be formed.

The further away the OnePlus 12 devices are from each other, the less likely the connection will remain secure. As a rule of thumb, Bluetooth can work up to 100 meters, but to play it safe, always try and keep your devices under 50m apart.

2.9 Avoid interference of other Bluetooth sources

The final consideration you’ll want to think about is that Bluetooth radio waves, or wireless waves, can interfere with each other. This means they can bounce off each other or get muddled up and make things confusing from your devices.

With this in mind, you’ll want to make sure you’re limiting the amount of Bluetooth activity in the area where you’re trying to use a device. While uncommon, this could be the problem.

To fix this issue, turn off all the Bluetooth connections in the area. This includes computers, laptops, mobile phones, tablets, and any other Bluetooth devices you may have. Then, try connecting your OnePlus 12 to the OnePlus 12 device you were trying to use. If it works, you know you were experiencing Bluetooth interference.

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Reliable User Guide to Fix OnePlus 12 Running Slow and Freezing | Dr.fone