Can anyone tell me what is wrong with my tool bar for wifi/battery/sound?
Battery shows X mark
No Audio output on laptop speaker
Cannot control brighness
connected to wifi and bluetooth device but its greyed out
the battery % sign is only shown not the actual battery remaining number
When I open bluetooth settings, the windows auto closed in 1 second.
I have latest windows update installed.
Related
ADB debugging needs connection between Android Studio and Wear 3.0 smartwatch (Samsung Galaxy SW 4). How make them work together?
Switch ON Developer Mode on your Smartwatch, including A) Activation Developer Mode in Settings (in most cases push many times on Settings-> About watch -> Software -> Software Version) B) Set ON ADB Debugging C) Set ON Wi-Fi Debugging
Connect work station with Android Studio and smartwatch wear 3.0 to the same wi-fi network
Connect smartwatch via usb charger with workstation (obligatory in most cases at least once)
Send the command in Terminal - adb connect XXX.YYY.Z.A:5555, where XXX.YYY.Z.A - address of your Wi-fi - find it in settings of wifi in smartwatch or workstation
Accept the request on the smartwatch (always allow / always trust);
Check in Studio the change from No Device to your smartwatch.
Notes:
sometimes it's obligatory to turn on \ off ADB Debugging and Wi-Fi Debugging on smartwatch and try again;
sometimes the connection between smartwatch and Studio is working without USB connection at all (but mostly one time and you need to repeat "adb connect XXX.YYY.Z.A:5555";
sometimes you need smartphone in the same Wi Fi network with workstation and smartwatch, sometimes it works well without smartphone.
I have a windows 8.1 based lap top which supports Bluetooth.
I wrote a java based bluetooth server which gets connections from Android.
The issue is, the device sometimes get invisible(or to say not shown) on android devices.
I've tried with other laptops or Android phones, but sometimes it just doesn't get searched.
I think it's not about my java server program. Even if there's a problem with my program, it should at least be shown on the bluetooth search list of other devices.
I found a very crude solution about this issue.
Always running the 'change pc settings(not the exact name)' app of windows 8.1, and going to 'PC, devices' -> Bluetooth makes it always searchable. If I turn this off(I mean the 'change pc settings' app, not turning off bluetooth), the bluetooth cannot be found by other devices.
Why is this happening? My purpose is, bluetooth server must be turned on automatically after boot, but the reliability of the bluetooth device is failing my intention. However, since my crude solution above is temporarily solving my issue, I do not think it's a hardware issue.
So, my question is :
1) Why is this happening? And how can I mend this?
2) How can I run windows metro app through windows shell? If I can't find any other solution about this, I will have to write a batch script to always run the solution thing above.
Going to Change PC Settings>PC and devices>Bluetooth is initiating a Bluetooth device search. As a side effect, the Bluetooth is also made Discoverable (pairing mode). However, this Discoverable setting is temporary, only while the PC is searching for remote Bluetooth devices.
If you wish to keep Bluetooth Discoverable at all times, you need to check the "Allow Bluetooth devices to find this PC" button box, found in Bluetooth Settings. I found Bluetooth settings by right clicking the Bluetooth system icon. Can also be found in Devices and Printers, by right clicking the Bluetooth adapter icon.
I'm trying to get a "Selfie stick" to work on Windows Phone 8.1.
The Selfie stick is a HID device and is used as a keyboard, when the shutter button is pressed on the stick it sends an "Enter" keystroke to the connected device.
So far for the logic, the problem is that when I try to pair it with my phone it only stays connected for about 5-10 seconds and then disconnects.
I'm new to bluetooth coding and I read that some bluetooth profiles are not supported, is this true for HID keyboards as well?
Thanks,
Peter Larsson
As it is a keyboard, simply handle keyboard events such as KeyDown and check if it is Enter. No need to deal with Bluetooth yourself.
It could be a media key (volume up) as well.
Bluetooth keyboard should stay connected. Try upgrading to Windows 10 Mobile (Fall Creators Update) where more Bluetooth APIs are available.
If it keeps disconnecting, there is not much you can do.
my new wireless mouse is not getting detected in my laptop, whereas it is working fine in all other systems and laptops. when i plug in the USB it is saying device not installed successfully i.e.(drivers not found). i checked in Google for wireless mouse drivers for my laptop(lenovo g580) but i can't find it. previously i disable Bluetooth application because of bTTray main window.exe error. is there any relation between wireless mouse connection and Bluetooth ?? please help mee... if there drivers available.. please let me know
Which OS are u using? If it is windows 7 or 8, then go to device manager and update USB drivers after right clicking the USB entries.
This worked for me:
Remove USB receiver and wireless mouse battery for 5 seconds. ...
Go to RUN (Win Logo + R) and type “devmgmt.msc” to open device manager.
Now find Mice and other pointing devices and find your wireless mouse.
Now right click on your wireless mouse and click Scan for hardware changes.
source:https://www.wiknix.com/solved-wireless-mouse-not-working/
I have bought an IOGEAR GBU521 bluetooth dongle as per the instruction on Apple's technote:
http://developer.apple.com/library/ios/#technotes/tn2295/_index.html
I have also configured it as instructed and I'm trying to get the temperaturesensor demo to work but the Bluetooth under settings never seems to turn on (keeps spinning). Looking at the console, here is what I see:
2012-11-02 4:17:08.114 PM Preferences[862]: BTM: setting discoverable status enabled
2012-11-02 4:17:08.114 PM Preferences[862]: BTM: setting connectable enabled
2012-11-02 4:17:08.115 PM Preferences[862]: BTM: enabling device scanning
2012-11-02 4:17:08.115 PM Preferences[862]: BTM: failed to start scanning with error 111
Any thoughts? I've seen people ask about this but has anyone got this approach to work?
Best,
Throw away the IOGEAR and pick up a Cirago BTA8000.
I bought the IOGEAR you mention, in addition to the Cirago BTA8000, and the MediaLink 4.0 adapter. Turns out that anything based on the Broadcom chip won't work despite my MacBook having the exact same one built in, which means the MediaLink and IOGEAR don't work. My Cirago shipment just arrived this morning, and the Bluetooth slider in the iOS Simulator flicks to "ON" in less than a second.
If you want to experiment, I'd love to hear if other non-Broadcom chips work too.
I just bought a GBU521 from amazon to upgrade the BT in my MacBook8,3
I had the same problem of it not showing up. Reading the same article you referenced (TN2295) I did a sudo nvram bluetoothHostControllerSwitchBehavior="always" which tells the system to ALWAYS switch to a bluetooth controller if one is plugged in.
The default option:
when a new HCI is connected, the built-in driver only disconnects from the built in HCI and attaches to the external HCI if the new module is not an Apple module.
I presume that because the vendor IDs matched (0xa5c) that it was not switching over to the new dongle. Setting it to always causes OSX to always switch to a new BT adapter. This is confirmed by the following statement in TN2295:
Open the System Information application to verify that the system Bluetooth driver is matched to the built-in Bluetooth host controller interface (HCI). For the Hardware->Bluetooth setting, verify that the Vendor ID is "0x5AC".
Rebooting after the nvram update and I was able to re-pair all of my devices without incident.
HOWEVER this will not work for iOS BT LE development due to the following statement in TN2295:
If the system Bluetooth controller is matched to the Bluetooth LE USB adapter, then the iOS simulator will not be able to use the external Bluetooth controller for Bluetooth LE services.
Actually, you can mod the Info.plist inside the BroadcomBluetoothHostControllerUSBTransport.kext found here:
/System/Library/Extensions/IOBluetoothFamily.kext/Contents/PlugIns/BroadcomBluetoothHostControllerUSBTransport.kext/Contents/Info.plist...
Just copy another Broadcom dictionary and modify it or use the following additon to the Info.plist. You'll need to do this as an admin (i.e. sudo nano or vi this file after making a copy of the original).
<key>Add an appropriate name here</key>
<dict>
<key>CFBundleIdentifier</key>
<string>com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport</string>
<key>IOClass</key>
<string>BroadcomBluetoothHostControllerUSBTransport</string>
<key>IOProviderClass</key>
<string>IOUSBDevice</string>
<key>idProduct</key>
<integer>8680</integer>
<key>idVendor</key>
<integer>2652</integer>
</dict>
May need to reboot after the edit. Did this on 2012 MacBook Pro, ran XCode, and it allowed access to the Bluetooth dongle in iOS Simulator!
I hope this helps!