Database Info

Bluetooth turns off randomly

Hi,
I am using my HTC Touch Pro with an Opel Vectra built-in bluetooth carkit.
All functions, like browsing the address book and call registers, are working fine. However, at random times, my carkit reports no phone. When I then check my Touch Pro's bluetooth status, I see that it is has been disabled.
After manually re-enabling it, I can pair with my carkit for as long as it takes for bluetooth to turn itselves off again.
I've already tested with JETware, but that does not change anything. Also tried the universal broadcom bluetooth stack, but doesn't seem to work on the Touch Pro. HTC only comes with a standard answer that they don't support all carkits and headsets... Since the BT stack on the phone seems to crash, I don't think it's a carkit issue.
Anyone here with the same issue? And maybe a solution?
Thanks and regards!!

Start -> Settings -> Connections -> Bluetooth -> Timeout (tab). Turn off Visible mode set to "Never".
I think this must be your problem.

Hi Freco,
Thanks for your reply! This option is set. However it's not really the visibility that turns to invisible, but the whole bluetooth stack is being turned off completely. Need to fully re-enable it via Comm Manager.
Any other options? Does anyone know if there is a working broadcomm stack for the Touch Pro?
Regards!

Hi,
I have exactly the same problem with a Vauxhall kit, I have tried all sorts of things, but nothing seems to work

try:
start -> settings -> connections -> bluetooth
timeout tab
select 'never' from drop down box

Hi Brendo,
Unfortunately this doesn't solve the issue. Once paired, the connection even works without being visible. It's also not a fixed period of time before the disconnect takes place (can be within a minute, sometimes after half an hour). However, the whole bluetooth icons disappears from the top icon bar and comm manager shows it's turned off completely.
Hope somebody has any other ideas, because the only thing HTC can do is point to the carkit vendor :-(. Since all functionality is there when connected and the phone is turning off BT in some way, I really don't think this is caused by the carkit vendor. I should at least expect BT to stay enabled on the phone.
Thanks!

Yes, same here, BTW I have tried this in my Friends Saab, and the same problem.

same problem here with a Opel DVD90 buildin bluetooth carkit.
With other htc phones it always worked like a charm, but my mda vario IV continuously disconnects after a random time period and shuts down the complete stack.

Try this!
I have the same problem with my opel with original bluetooth-kit (2007). On the touch pro I changed the band and network from auto to GSM, as G3 reseption in this area is quit poor, especialy while driving. It helped for me, at least the last few days. I agree this has been an annoying problem.

I have tried to switch to "GSM only mode" in the past, but as far as I remember it does not completely solve the issue. However, I will give it another shot! Actually I can't figure out at what point it occurs... It can happen within a minute or after half an hour without using any funtion.
Does one of you know if there is a way to do some debugging on the Bluetooth stack?
And has anyone experience with other Windows Mobile 6.1 based phones in this combination (just curious if it's a WM issue or HTC only)?
Furthermore I did some tests with JetWare. You should be able to limit the number of synchronised items then (might be related to this issue). However, it looks like this configured limit is being totally ignored: when I limit my recent call list to 5 with JetWare, it still syncs about 25 items. Anyone tested with Jetware?

I have tried the GSM only mode, this didn't help either
I have now given up and got myself a Nokia E66, which works perfectly.
All contacts are pushed to car, no disconnects and AD2P works so my mp3 ringtones play through the car speakers! Sweet
Word of note, I had issues with N-Series phones, would connect ok, but contacts would not push.

I have the samen problem with my HTC Touch Pro and Saab.

bluetooth pairs just fine with my pioneer bluetooth enabled deck, but the problem iwth mine is once i receive a call sometimes no sound comes from the car, instead the earpiece is still on. but if i initiate the call first sound works just fine and earpiece on the phone is disabled, BUT once the call is ended bluetooth disconnects randomly and the phone takes a good 1-2min to reconnect. i absolutely hate the bluetooth on this phone!

ExTREmE99 said:
bluetooth pairs just fine with my pioneer bluetooth enabled deck, but the problem iwth mine is once i receive a call sometimes no sound comes from the car, instead the earpiece is still on. but if i initiate the call first sound works just fine and earpiece on the phone is disabled, BUT once the call is ended bluetooth disconnects randomly and the phone takes a good 1-2min to reconnect. i absolutely hate the bluetooth on this phone!
Click to expand...
Click to collapse
I am having the same problems you describe. Anyone got an suggestions???

I encountered the same problem; first with an opel udp carkit and next with the bluetooth interface software from homeseer.
It has something to do with phone signal loss.
With the opel carkit I noticed bluetooth automatically turns off when the phonesignal switched from 3g to gsm.
I also noticed that in my home, BT turns off whenever I have been in a room with no phone-signal reception.

try this thread, both registry change and attached cab file, reset. DOn't worry if the make visible to all option is unchecked.
http://forum.xda-developers.com/archive/index.php/t-314996.html

Bluetooth Disconnects

Hi,
I'm having a problem with intermittent Bluetooth disconnects between my new Touch Pro and my In Car hands free kit, it's a Factory fitted Vauxhall option with the car.
I can pair everything up, and it all works fine, contacts get pushed, recent calls display etc..
Except that after a random period of time, can be 5 mins or an hour, the display on the dashboard in my car changes from showing 'vodafone UK' to the Phone name, and then disconnects.
Looking on the HTC in Bluetooth settings, it shows that Bluetooth has been turned off!
I have tried various things suggested from all sorts of other forum sites, but nothing has worked.
I hope someone can help me here, as I love the phone.
Thanks.

Enable SMS over Bluetooth?

I have the Kenwood DNX8120 and it works fine with my Fuze (did have disconnect issues but just updated the Kenwood firmware which should take care of that) but the SMS feature on the radio doesn't work. I know only certain phones are compatible with this feature but on the Kenwood compatibility list there are several HTC devices that work. In any case, does anyone know how to enable SMS over bluetooth on the Fuze?
Thanks

I have the Kenwood DNX8120 in my car and have had no luck getting the Fuze to work correctly. It constantly drops connection. I updated the Bluetooth firmware and that only seemed to make matters worse. It will pair with the Kenwood, but either won't make a phone call or will take up to 60 seconds (or not at all) for the Fuze to recognize I it the call button on the radio. SMS, sent and received call history also do not work.
Have you had similar issues?

I can not get sms working. The only other issue I have is that after a call, it drops the connection. If I get another incoming call, it will reconnect and the radio will ring and handle the call. But, if I want to place a call, I have to either select "set as hands free" of something similar, in the bluetooth settings on teh phone and it reconnects and I can dial. I just upgraded to elite rc3 and the problem is still there. I havn't messed with it enough yet to know if it dials ok without having to bring the phone out of standby yet. I too have updated the bluetooth drivers from Kenwood and that didn't help. I also tried the jetware handfree extension and didn't see any improvement.

I called HTC about this, and they told me it only "officially" supports a hand full of car units. Mostly in the Audi and BMW. They don't "officially" support anything from Kenwood so they were absolutely no help on this. I've also noticed this phone drops all connections except cell and data when it sleeps. Wifi, GPS and Bluetooh all seem to go to sleep with the phone. This seems to make bluetooth pretty useless if the connection drops every time the phone sleeps and needs to be manually reconnected.

I haven't seen it drop the bluetooth connection during sleep. I see that the Kenwood supports some HTC devices but not this one specifically. The other wierd thing is that the first time it pairs it shows the battery indicator but after the next connect it doesn't show it. It shows the battery icon but shows it empty. The jetware extension however does fix that. I will play some more with it and report here.

After resetting my phone to AT&T's original setup, I am experiencing the exact same functionality as you. It now sync's my call history and phone book. No voice dial support or SMS yet. (These have never worked with any of my phones) It will disconnect after a couple phone calls and I have to set as hands free to reconnect. Also, mine still looses the connection to the unit when it goes to sleep. I'm keeping it on a car charger for now and turning off any sleep function when charging. That at least keeps it connected until I make a call. It's almost still not worth using with having to reconnect hands free. Maybe if a hands free quick connect shortcut could be created?
This is all really ridiculous that a phone with this kind of tech can't auto pair and be ready for a call. My LG Chocolate had absolutely no problems with the Kenwood. As soon as the Kenwood finished booting the LG would auto connect and be ready for a call.

I thought I found a workaround at
http://forum.xda-developers.com/sho...ghlight=bluetooth+connection+drops+phone+call
But, once installed an trying to run BT Restart I get an error saying that I need .net compact framework (version 1 or 2) installed. Not sure what to do now, cant seem to find a cab for this.

I've used this package from another post on the forum. It has many useful apps including the latest version of .net compact framework.
http://www.tyguy.net/_xchg/PPC/@essentials.rar
Let me know how it turns out!

I will take a look but I have 3.5 already installed. I guess that app needs the older version. Not sure I want to mess with downgrading it.

Not Kenwood
Hey Guys,
I drive a Jag XK8 and it has the same issues you are mentioning with your Kenwood, but its an Alpine unit, it drops calls, and after the first call connects the second call rings on the stereo but you can only answer on the handset.
I also recently had a new Jag XF for a week. It had a full integration to the phone. It also only showed the battery status when the phone first connected then the battery showed empty. It would drop bluetooth connections constantly on some days (every 90secs) and then somedays it would keep the bluetooth connected without issue. Very unreliable.
The reason I bring this up, is just to let you know these issues are not limited to the Kenwood.
Dave

Just an FYI. I have found it easier to just go into setup in the Kenwood and reconnect the bluetooth from there when the phone disconnects. It's under Setup/Bluetooth/Set, then just click on the device and hit connect. It seems easier than fiddling with the phone while your driving.

[Q] Weird Bluetooth Issue

So this morning I was driving and noticed something flashing on my car radio's screen. The "media playback" icon was flashing every few seconds while my phone was connected. I never stream bluetooth music as I have an iPod hookup so I have media streaming disabled under bluetooth options on my phone, and if I'm using navigation I don't get the navigation voice if I'm not using bluetooth streaming anyway. Does anyone have an idea as to why it's flashing? I'm about to download Better Battery Stats and see if that's what's causing my phone to drain faster than I believe it should. Under the battery information it seems my phone is waking up a LOT more than it should be. Preferably, I'd like to keep it when I don't stream bluetooth music on my radio. Also, on my old phone, a Galaxy Nexus, I never had this problem, so I doubt its my car radio.
Also, an afterthought (and unrelated issue), when I unplug my phone from the charger the screen doesn't turn on. This is the first phone I've had that has this behavior. Is this normal?

[Q] Nexus 5 unresponsive when bluetooth paired.

Hello,
I have my nexus 5 for a good week now. I use Unified Remote a lot as a bluetooth remote control. I noticed when my phone is paired with my PC (and the unified remote server), my phone becomes 'lazy' and unresponsive. First, i tried to unlock my phone, but the screen stayed black. I was thinking of the worst. After trying to unlock it for a while, very calmly, the screen popped up. It was like my phone waked up from a very deep sleep. I could not relate these issues to the bluetooth, altough it was paired. I thought it could be the charger, my HTC One X acted weird on certain chargers... Later, i get a message, and I noticed it was only vibrating, while I was sure the volume was turned up. So I try to turn up the volume.. No response.. After turning off the bluetooth, I try again: flawless phone, no issues at all. When pairing again: Same issues. Anyone has a clue how to fix this? I'm using Windows 8.1 btw. I searched on google, but found nothing useful.
Should I RMA this phone? Is this soft- or hardware related? What can I do? Anyone has experience with RMA'ing a phone bought from google play?

Okay, So i can relate the lazyness when changing the volume. It was because in my bluetooth settings, my pc was set as sound output, for the cell phone. Sorry for my faulty english by the way. Ticked off the checkmark under the bluetooth settings that said that my PC has to serve as audio output. Phone is good and responsive now. Now I hope that this is also the reason my screen staid black for a while, while trying to 'unlock' it. I will wait and sit this out. Some opinions on this?