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53 votes
Accepted

Can't check 'Phone Audio' setting for a Bluetooth headset

I found this fix/workaround: Go to Settings, then Bluetooth. Turn off the Bluetooth and the screen should show a link for the scanner settings. Click the link to turn off "Bluetooth scanning." Then it ...
Laszlo Miklosik's user avatar
32 votes
Accepted

Android Smart Lock: Why is there no option to use WiFi?

Some forums state the risk for the WiFi network to be spoofed. I don't understand how the risk is different: an attacker could spoof a Bluetooth device as well. The risk is different. It's not ...
Dan Hulme's user avatar
  • 35k
16 votes
Accepted

Does Bluetooth not work on devices without GPS?

This is a misunderstanding or a bug in the app. Bluetooth and GPS on a technological level have nothing in common. However Bluetooth can also be used for calculating your location e.g. by special ...
Robert's user avatar
  • 21k
13 votes

Why do I need to turn on location services to pair with a Bluetooth device?

My understanding of Bluetooth is that applications using Bluetooth have direct access to the device MAC address for the purpose of pairing. I will assume this for this answer. If you can read MAC ...
mattm's user avatar
  • 4,241
11 votes

Record video with external bluetooth mic (ie headset)

This app worked better for me: Cinema FV-5 After installing the app, but before recording the video, do the following: Click Settings Click Audio Source Select Bluetooth Mic Then record your video.
dwaynemac's user avatar
  • 211
10 votes
Accepted

Prevent music players from auto play on bluetooth connect

Background Major part of this guide was extracted here: How to Disable Bluetooth Automatic Playback on any Android Phone The point of this guide isn't to disable Bluetooth music entirely, otherwise ...
xavier_fakerat's user avatar
8 votes
Accepted

Is there a way to leave bluetooth on while turning cell service off - a near airplane mode?

Newer phones do not automatically turn off bluetooth when you enable airplane mode. On yours: Turn airplane mode on Then turn Bluetooth on
Rohit Gupta's user avatar
  • 1,968
7 votes

Android Smart Lock: Why is there no option to use WiFi?

What you ask would certainly be possible, but it should be restricted to when a device is connected to a Wi-Fi network using sufficient security, i.e. WPA2 authentication/encryption. Probably it was ...
Dubu's user avatar
  • 171
6 votes

My Samsung Galaxy trend plus wifi wont turn on

Do you have applied any update(custom or OTA) ? Custom: If you have upgraded your ROM before official release, high possibilites are there to face these type of problems. OTA: Very rare but possible ...
user285264's user avatar
6 votes

Discover version of Bluetooth

Go to http://www.gsmarena.com/ and search for your device: the site provides several info including Bluetooth version.
Pino's user avatar
  • 161
6 votes
Accepted

Bluetooth input for video recording : Android 10, One Plus 7

Finally cracked it! Using any Bluetooth headset (even supporting BT 5.0) like Crossbeats and recording with stock camera app or with Open Camera with audio source set to external doesn't work. ...
beeshyams's user avatar
  • 41.1k
5 votes

Disable Bluetooth auto connect for specific devices

Unfortunately, there is no explicit setting "do not autoconnect" for a Bluetooth device (wish there were). However, there is a workaround (as mentioned in askvictor's answer): In Settings, ...
sleske's user avatar
  • 338
4 votes

Can I use ADB without connecting over USB?

2020 Update: Android 11 enabled built in Wireless Debugging. Here's the official announcement on the feature, and here's a handy guide on how to connect ADB without cables, without root.
Gaia's user avatar
  • 315
4 votes

Can an Android phone be used as a Bluetooth headset/speakers?

Here's a XDA article by Mishaal Rahman that basically says: Even without A2DP profile on Android (which is not implemented even in Android 8 yet), you can do a low-quality Bluetooth streaming via ...
Victor Sergienko's user avatar
4 votes

How do I determine which A2DP codecs my phone supports/is currently using?

In many cases, you need not go through this process, as valdikss now keeps track for many of the contributed results on his website https://btcodecs.valdikss.org.ru/codec-compatibility/ https://...
klaberte's user avatar
4 votes

Bluetooth keeps turning on

It was the Firechat app for me. It'll be one of the most recent apps you installed if the Bluetooth started turning on out if nowhere.
johntrepreneur's user avatar
4 votes

Displaying Bluetooth gadget's battery status on the phone

For some headphones, in order to see the battery percentage you have to enable the "Calls" button or something similar to that in the Bluetooth settings of the device.
REDEX's user avatar
  • 41
4 votes

Why do I need to turn on location services to pair with a Bluetooth device?

The vendor is correct, you need to enable location services to scan for WiFi or Bluetooth LE devices. See bug #185370 for details. Google said they have fixed it in a 'future release' but according ...
jomo's user avatar
  • 143
4 votes

How do I unpair my Bluetooth Headphones from my phone without access to my phone?

I've found that I can long press the power button on the headphones to unpair them from the phone.
Ikoter's user avatar
  • 41
3 votes

Determine app that keeps turning on bluetooth

Check in Android settings. Security and privacy --> permission--> Turn Bluetooth on. Check which apps you want to keep enabled.
viswanath k's user avatar
3 votes

Determine app that keeps turning on bluetooth

For me it was FireChat. With aSpotCat you can check which apps have the permission to turn bluetooth on/off.
mYnDstrEAm's user avatar
3 votes

Bluetooth keeps turning on

You can find out what is activating bluetooth by going to Settings -> Connections -> Bluetooth -> "..." -> Bluetooth control history. In my case it was the bike rental app for Paris "Velib" and sadly,...
CMcClymont's user avatar
3 votes

How to check supported Bluetooth Profiles on Android device

With USB debugging enabled, adb shell dumpsys bluetooth_manager | grep Profile` Output on a Mi 10i is as follows: Profile: GattService Profile: HeadsetService Profile: A2dpService Profile: ...
Padmanabha V's user avatar
3 votes

How can I use one Android device as mouse and keyboard input for another Android device via bluetooth?

Serverless Bluetooth Keyboard & Mouse for PC/Phone should be what you're looking for. I hope this helps. https://play.google.com/store/apps/details?id=io.appground.blek
Al Crowley's user avatar
3 votes

How to add a physical keyboard layout

You should install extra keyboard layouts: https://play.google.com/store/apps/details?id=varzan.extraKeyboardLayouts . It is free and helps me to type on Mongolian language and included many other ...
nymabatur's user avatar
3 votes

How to display the on screen keyboard when Bluetooth keyboard is connected

I am with an Android 9 tablet, and find the option as: Settings / System (languages, time ...) / Language & input / Physical keyboard ==> There is an option that reads "Show virtual ...
llinfeng's user avatar
  • 197
3 votes

Why do I need to turn on location services to pair with a Bluetooth device?

The OP asked about Pairing (the original, privacy-safe Bluetooth method to define a new, trusted relationship by confirming a code sent from the other device). For pairing, an app DOES NOT need: Scan ...
Coder Steve's user avatar
3 votes

Why do I need to turn on location services to pair with a Bluetooth device?

I will need to add my two cents to this -- being an app developer who needs to scan for Bluetooth LE health devices. I also need to do this in the background so the app can re-connect to the device ...
Brian Reinhold's user avatar
3 votes
Accepted

How to answer phone calls in another phone via Bluetooth?

According to the answer to this Stack Overflow question: you can't. (It is possible for land lines though.) Or you can forward your calls from one phone to the other, either by changing the settings ...
Monozygotic's user avatar
3 votes

How to diagnose Android phone that is not working properly via vehicle bluetooth?

You can investigate who is guilty, but most probably you will not be able to workaround it. If your phone has Android version 4.4 or later you can collect Bluetooth HCI snoop log. Enable Android ...
hank15's user avatar
  • 141

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