Bluetooth is one of the most important connections, and present in all smartphones regardless of their price range. Whether it’s connecting our favorite audio devices, activating the car hands-free or sharing files, Bluetooth is still there and as fresh as the first day. In addition, its standard continues to improve and both the speed, the stability or the range of this connectivity are increasingly wide. The usefulness of Bluetooth is beyond doubt, the bad thing is when this function insists on staying activated or activates itself when we do not need it.
The ideal when we are not using some type of connectivity, whatever it is, is to turn it off. In this case we are talking about Bluetooth, but of course it is something applicable to GPS or Wi-Fi. If the Bluetooth is kept on, the only thing we will achieve is wasting a few precious milliamps from the battery, since the energy consumption of our terminal will be higher. In addition, we can leave our device exposed to possible security breaches, since very possibly the Bluetooth connectivity of our device can be tracked by third parties.
Bluetooth turns on by itself
But one of the drawbacks (more than a failure), associated with Bluetooth, is that it usually turns on by itself for no reason . Even when the user is sure they have turned it off, it is common to turn on the mobile and find the Bluetooth icon activated. Luckily, practically all the cases respond to one of the following causes and therefore solutions, which we leave you below.

Check recently installed apps
The problem is detected many times when recent applications have been installed. You may have left your phone with your son for a while and he has filled it with games. In other cases, a previously installed app has been updated and may be the cause. In both cases, the application has access to Bluetooth and is activating it in the background . In this case we have two solutions:
- Detect the responsible application : deleting it in order within Settings / Applications
- Deny access of this app to Bluetooth: in case your access is not necessary. This can be done from Settings / Applications and then tapping on the application’s permissions. Next we select the Bluetooth and we touch in “Do not allow”
Automatic device search
This is a very useful function, but if we have it activated it is normal that we find Bluetooth activated from time to time. The “Search for Bluetooth devices” option allows applications and services to search for nearby devices at any time. This means that it will be in use even after the Bluetooth has been turned off. The solution is as simple as deactivating this option, found in the Connectivity settings.

System problem
On many occasions, and apart from the above, that the Bluetooth turns on by itself, it can respond to an instability of the system. There are many software updates that correct errors related to this connectivity. To verify this, we must go to Google Play, click on “My applications” and update all those that have pending patches. Likewise, we must go to Settings / System / System Updates and look for pending updates. If we have any we must update to see if the problem disappears.

The second solution is to try to clear the settings of the connections, which include Wi-Fi and Bluetooth . By doing so, we will clear the cache and previously configured devices, which may be causing the problem. To do this we enter Settings / Networks / Reset Network settings. After doing so, we will have to restart the mobile to and check if the Bluetooth stops turning on automatically.