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How to fix an Android phone does not connect or pair with Bluetooth

Bluetooth technology is not new. Tired of wires and stringed devices, we quickly jumped at the opportunity to get rid of the strings and work wirelessly. But every technology has its flaws and Bluetooth can have some problems which can be easily fixed too. If your Android phone does not connect or does not connect Bluetooth and you are looking for solutions to remedy it, we have some tips for you. We will identify the reasons for Bluetooth Problems and look at the solutions that can help you solve the problem.

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Get evidence of the way

To get started, let us get the basics and the most obvious things sorted out. Bluetooth is a technology that allows you to connect two devices wirelessly so that data and information can flow between the two devices. An important step in connecting devices is called pairing. When you successfully pair Bluetooth devices, the data can be easily transferred from each other. But if pairing fails or you cannot pair the devices, there is a problem with the hardware or software of one of the two devices.

One important thing to realize is that your phone or the device with which you are going to pair it is not always in pairing mode. Take the example of connecting a headset to your phone using Bluetooth. You must ensure that the headset is in the mode where it can be paired. That is, your headset must be in pairing mode. And your phone should be ready to scan the Bluetooth devices around it.

If they are not in the correct mode, the devices will not be able to connect. It is the most obvious and basic step to pair two Bluetooth devices. So when you are going to use Bluetooth to pair your phone with another device, make sure that Bluetooth is turned on on your smartphone and on the device you want to pair with your phone.

With the evidence out of the way, we can now focus on the troubleshooting steps that will help you resolve the issues, even after you've tried to establish a Bluetooth Connection by turning on Bluetooth in both devices.

Solution 1: switch the Bluetooth connection

If the Bluetooth connection could not be established or if you cannot pair two devices, the first and easiest step in troubleshooting is to switch the Bluetooth connection. Drop down the notification shade from your phone and look for the Bluetooth icon. Deactivate the Bluetooth connection, wait 10 seconds and switch it on again. Now try to check if the phone is able to pair with the Bluetooth device or not

Solution 2: Exclude problems related to the device to which you connect

Before starting to troubleshoot the phone or tablet, it is important to rule out the fact that the device is not the cause of the problem. To check if the device works or not, connect it to another device such as another phone or laptop and check if it works correctly on other devices. If the Bluetooth device works properly on other phones or tablets, the problem is on your phone and other issues need to be resolved on the phone. But if the device does not connect to another phone or device, the problem is with the device and you may need to follow the device manual to troubleshoot the device or have it checked or replaced by the maker. This is an important step to ensure that additional troubleshooting of the phone becomes a wise step when trying to find solutions to Bluetooth issues, for example, why is my Bluetooth not connecting.

Solution 3: Restart your phone and device

Start with restarting your phone. A reboot fixes simple errors and helps your phone restart. Activate Bluetooth by lowering the notification shade of your phone and pressing the Bluetooth icon after restarting your phone. Make sure the device is in pairing mode. Keep it near your phone and give your phone time to scan all nearby devices.

Once your phone displays the name of a device on the screen, tap it and connect. If the connection is successful and pairing works, the problem is resolved, but if the problem persists, try restarting the device you are trying to connect. Restart the device and put it in pairing mode and check if the connection is established and if your problem is solved.

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Solution 5: delete all twin devices

Let your phone or table get a fresh start by removing any devices that have already appeared. Chances are you are looking at a list that has devices that you have paired with only once and you would never be pairing again. It is best to remove these devices from your list and allow your phone to try to pair them again with the device. To delete all paired devices, do the following:

  • Go to the Settings menu on your phone
  • Tap Bluetooth
  • When your Bluetooth is activated, you will see a list of devices with which you have paired it
  • There is a settings icon next to the name of each device, press the icon and unpair the device
  • Do this for all devices until you have no devices on your list

Once all the devices have been removed, your phone will start searching again for the devices to which it can connect. It should show the device you want to connect to. Try pairing now and check if it works.

Unpair Android Bluetooth devices

Solution 6: Clear the cache and Bluetooth data

If Bluetooth on your phone has worked properly before, but you have started to notice Bluetooth problems very recently, you should consider clearing your phone's Bluetooth cache files. Cache files can be corrupted over a period of time or as a result of certain system settings. Deleting these files is harmless because they only contain data that helps your phone make your Bluetooth experience smoother. These files are automatically created new when you use Bluetooth. To delete the Bluetooth cache, do the following:

  • Go to the Settings menu of your phone from the notification shade
  • Tap Application Manager
  • You will find a whole list of applications on the next screen. In the top tabs, slide your finger on "All" to display all the applications.
  • Find Bluetooth and tap it
  • On the next screen, stop the application with force by pressing Force stop
  • Then press Clear cache and confirm your selection by pressing OK

Once the cache is cleared, restart your phone and try to reconnect. Check whether your phone is able to establish the connection and whether the connection is working properly or not.

Clear Android Bluetooth cache

Although clearing the cache will only delete the cache files, clearing the Bluetooth data will reset your Bluetooth connection to restart. None of the previous Bluetooth details will be saved after a data reset, so if you had Bluetooth connections or pairings on the list of Bluetooth paired devices, all of these connections would be completely lost. You will need to link the devices once the data is cleared. We erase the data so that any corrupted file will be deleted and the Bluetooth will have a chance to start up exactly as it was started up for the first time. Follow these steps to clear the Bluetooth data:

  • Go to the Settings menu of your device by pressing the Settings icon in the notification shade of your phone
  • Press on Application Manager and enter the "All" tab
  • Find Bluetooth and tap it
  • Now tap on the option that says Clear Data.

Once the data is erased, restart your phone, then activate the Bluetooth connection. With the other device in pairing mode, let your phone or tablet search for the device and establish the connection. When pairing is complete, check if the connection is working properly and if the problem is solved.

Solution 7: Update the software

Your Android device may be up to date which may include updates for certain applications which may cause a problem with Bluetooth. There are many things that can be fixed with an update. Update your phone software to make sure your Bluetooth works as expected. To manually check for updates, follow these steps:

  • Go to the Settings menu on your phone
  • Scroll down to find About device and tap it
  • Tap Update software (Update system), and then tap Update phone software.

Android software update

Once the update is complete, your phone will restart. After restarting the phone, try using Bluetooth and check if the problem is solved.

Also, check for updates for the Bluetooth device that you are trying to connect to your phone or tablet. The device may not be updated and this may cause problems because of this. Try to establish the connection and check if it works as expected.

Solution 8: safe mode

When you use your phone in safe mode, it disables all third-party applications and works in the most basic way. This helps you identify issues that may be related to third-party applications. Sometimes third-party applications can cause your device to malfunction. Bluetooth can be affected by one of the third-party applications and the best way to identify the problem is to use the phone in safe mode and to check if the Bluetooth is working in safe mode.

Use your device in safe mode, follow these steps for Jellybean 4.1 or later:

  • Long press the power button to bring up the power options on your screen
  • Now press the dye option on your screen until you see a window that will ask you if you want to restart your phone in safe mode
  • Press OK and allow your phone to restart
  • When your phone restarts, Safe Mode is displayed at the bottom of the screen.

Android Safe Mode

For phones using software older than Jellybean 4.1, simply restart your phone and make sure that when the phone restarts, press the Volume up and Volume down keys simultaneously. When the phone or tablet restarts, Safe Mode appears on the screen.

Try using Bluetooth in safe mode and check if it works. If you succeed, an application on your device may interfere with the Bluetooth connection. To find the application, you can restart your phone, and it will return to normal mode. Then you can start to install the apps that you think might be causing the problem.

Solution 9: factory reset

Resetting the phone to factory settings is one way to start with a clean slate. This removes all third party data and applications from your phone. It is important that all data is backed up when you reset your device to the factory settings. Android devices already have the ability to back up data from the phone, but it is always best to transfer all important photos, videos and files to a computer before resetting your phone.

  • Go to the Settings menu on your phone.
  • Tap on Save and reset.
  • You can check the Backup and reset option if you want to back up your data before resetting the device.
  • Tap Factory Reset.

Android Factory Data Reset

Your phone will begin the process of resetting your device by deleting all the information and data stored on your device. After the reset process is complete, you can try using Bluetooth to check if it works. If your problem is resolved, you can restore all the data on your device.

On the other hand, if your Bluetooth problem persists, there is a good chance that there is a problem in the physical connections that can cause the problem. To resolve the problem, bring your phone to a professional or the manufacturer. For phones under warranty, you can get a replacement.

What should I do when my Bluetooth connects the device but the Bluetooth sharing has stopped?

This problem was common when users had updated Android Jellybean 4.3. When the software added support for Bluetooth Low Energy (BLE), a bug resulted in the Bluetooth connection being dropped with an error saying: Unfortunately, Bluetooth sharing stopped. The solution to this problem was to use an application called Bluetooth Crash Resolver.

On the other hand, for users who would like to use a different solution, they can reset the device to the factory settings. An update has corrected the bug. So, if you are using Jellybean 4.3, you should consider updating the software to make sure that Bluetooth works as expected.

Why does my Bluetooth not turn on?

Sometimes the Bluetooth does not turn on. At times like these, it is suggested to restart your phone and try to turn on Bluetooth. While the problem is usually resolved with a restart, if it appears new, consider removing the cache and data from Bluetooth and restarting the device to resolve the problem.

What to do when my Bluetooth does not connect my car?

If you find that the Bluetooth is unable to pair with the car, make sure the car kit is good by trying to connect another device. Now you have to understand that Bluetooth protocols and standards are reviewed very often. New protocols are added and you have one of the latest smartphones, but your car's Bluetooth kit is very old so there may be compatibility issues between the two.

If you started to face the problem after a recent firmware update of your phone, you can check if your car's Bluetooth kit is still compatible or not.

If so, try removing the cache partition from the phone and log in again. To do this, proceed as follows:

  • turn off your phone
  • Press and hold the power button and the Volume Up and Home button together
  • Once the Android icon appears on the screen, release the power button but continue to hold the other two until you see the screen for recovery mode.
  • Once the phone has the recovery menu, release all the buttons and use the volume key to navigate to the option that says Wipe Cache Partition
  • Use the power button to confirm your selection

Your device will confirm that the cache partition has been erased and will return to the same screen. Now use the Volume button to highlight the option to restart the device and press the power button to confirm the restart.

Once the device has restarted, try to connect again to check if the problem is solved.

All these solutions will work to fix an Android phone or tablet that does not connect or pair with Bluetooth, including Samsung S5, Samsung S6 and S6 Edge, LG G3, LG G4, Nexus 5, Nexus 6, HTC One, HTC One M7 , HTC One M8, etc. If you continue to face the problem even after trying all of these solutions, contact the manufacturer, store, or operator. For phones under warranty, the manufacturer may also be able to replace the phone.

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