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 ...
- 646
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 ...
- 35k
15
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 ...
- 21.7k
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 ...
- 4,231
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 ...
- 10.2k
9
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, ...
- 386
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
- 2,352
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 ...
- 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 ...
- 321
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.
...
- 41.3k
5
votes
Discover version of Bluetooth
Go to http://www.gsmarena.com/ and search for your device: the site provides several info including Bluetooth version.
- 151
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.
- 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 ...
- 244
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://...
- 71
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.
- 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 ...
- 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.
- 41
4
votes
Accepted
Disable telephone control (answer call, call) from Bluetooth headphones
Go to Setting - Bluetooth and find your headphone device in the list and press the settings gear next to it. Uncheck Phone Audio or similar entries related to phone/telephone (may vary by Android ...
- 6,217
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.
- 31
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,...
- 131
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
- 31
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: ...
- 131
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 ...
- 197
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 ...
- 41
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 ...
- 31
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 ...
- 131
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 ...
- 146
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 ...
- 141
3
votes
Accepted
No Bluetooth on CM12.1
This seems to be a known problem when using
[ROM][5.1.1][SM-G360H/HU] CyanogenMod 12.1 for Samsung Galaxy Core Prime
The original developer >>doesntexits<< already knew this and provided a ...
- 1,821
3
votes
Accepted
Is there a way to enable Hotspot when connected to a specific Bluetooth source?
You can use Tasker to accomplish this
Profile (or Trigger)
Create a Profile which allows triggering of the Tasker upon bluetooth connection:
Go to Profiles Tab and click the "+"
State ➡ Net ➡ BT ...
- 10.2k
Only top scored, non community-wiki answers of a minimum length are eligible