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-   -   Bluetooth Connection Slows Everything Down (http://forum.ppcgeeks.com/showthread.php?t=101343)

jeff_roey 12-11-2009 08:03 PM

Bluetooth Connection Slows Everything Down
 
Having a problem with my Imagio when connecting to my vehicle's bluetooth: the phone just flat out slows to a crawl.

As soon as I pair with my vehicle (a 2009 Chevy Equinox) the phone's responsiveness falls way off - can't really do anything with it at all. If I break the pair - usually have to use the vehicle's UI to do this since I can't navigate to the COMM Manager - responsiveness comes right back immediately.

I've looked through the forums and found a similar thread in the TP2 section with no resolution. Anyone else dealing with this and/or find a non-hard-reset solution???

jeff_roey 12-15-2009 06:38 PM

FIXED: Bluetooth Connection Slows Everything Down
 
Warning: this could be the dumbest thing you've read about the WIDCOMM stack in a long timme . . . but it solved my problem. :laughing6:

I figured out that my pim.vol file was what was causing my BT to slow my phone to a crawl when I established a connection with my Chevy Equinox.If you find yourself addressing a similar issue, I suggest you add your pim.vol to your list of things to troubleshoot.


Long story short, after having perfectly functioning BT since the time I received my Imagio, sometime over the past few weeks it went south - establishing an in-car BT just killed the phone's response. I couldn't make a call let alone open a gps or any other app. I naturally thought it was something I installed so after hours of uninstalling and re-installing, a bucket full of hard resets, etc, I figured out that my pim.vol was the root of all evil - the version I was restoring was somehow interfering the my BT connection.

I know, I know . . . but here's the thing: the way I narrowed it down was by doing an in-car hard reset and restoration (I'm officially coining that phrase :-P). I sat in the car in the driveway and re-installed my apps in groups of 2 and 3, pairing and breaking the pair to the vehicle in between. After successfully coming through all of my apps this way the device continued to work perfectly. I thought I somehow licked it with only restoring my pim.vol left - normally, that would be one of the first things I'd restore - and sure enough after I did that the lag returned. I reverted to an older, back-up copy of my pim, re-paired and the lag disappeared. Flip-flopped between current and old pim a few times for confirmation, and it didn't take long to convince me it was the source of the problem.

I cant begin to imagine why. The "corrupted" pim functioned perfectly well in every other respect (even with other BT earbuds) - just sapped my phone when connected to my in-car BT. Just for reference, my pim is about 2.8 mb - don't know if that has anything to do with it.

Let me know if you get desperate enough to try a similar approach and if it works for you.

dmitrynt 01-19-2010 02:37 PM

Re: Bluetooth Connection Slows Everything Down
 
i got HTC Imagio and i got same problem with slow phone once it gets BT connection in my car.

I did not understand the workaround. Do i have to remove pim.vol and reload all my contacts?

jeff_roey 01-19-2010 02:56 PM

Re: Bluetooth Connection Slows Everything Down
 
Quote:

Originally Posted by dmitrynt (Post 1501738)
i got HTC Imagio and i got same problem with slow phone once it gets BT connection in my car.

I did not understand the workaround. Do i have to remove pim.vol and reload all my contacts?

Simply said the "work-around" for me was to restore an older version of my pim.vol following a hard reset. The thing to keep in mind is my BT worked fine for weeks before it went south. I backup regularly so it was no problem for me to restore my pim.vol using a version that was in-use during t he working time.

If you don't have a backup of your pim.vol or if you never had your BT working, I'm not sure what alternative you have. One thing I would try: clear your call log and attempt a re-connect.

If that doesn't work, I would look into how you can baseline your pim.vol without hard resetting. In other words, if you shut off TF3D, rename your pim.vol to pim.vol.old, soft reset, and restart TF3D . . . will TF3D create a new, blank pim.vol????

That's a question I would suggest you try have answered by someone smarter than me in the forums before you tried it :)

nickoko 01-19-2010 03:33 PM

Re: Bluetooth Connection Slows Everything Down
 
FYI, I have the same problem (2009 GMC Acadia). Bluetooth worked fine for a while, then it started making things extremely slow. I saw this thread at that point and thought about experimenting with my pim.vol file, but decided to just do a hard reset.

At that point I re-synced with Outlook to get all of my contacts back, and everything was working fine - for a few weeks. I am now back to the extremely slow phone when connected to bluetooth in my car. I guess it is time for some troubleshooting.

traumadog 05-02-2010 03:41 PM

Re: Bluetooth Connection Slows Everything Down
 
Quote:

Originally Posted by nickoko (Post 1501864)
FYI, I have the same problem (2009 GMC Acadia). Bluetooth worked fine for a while, then it started making things extremely slow. I saw this thread at that point and thought about experimenting with my pim.vol file, but decided to just do a hard reset.

At that point I re-synced with Outlook to get all of my contacts back, and everything was working fine - for a few weeks. I am now back to the extremely slow phone when connected to bluetooth in my car. I guess it is time for some troubleshooting.

I'll have to see what turns up - this happens with my Acadia/TP2 as well.

johncal 05-02-2010 04:30 PM

Re: Bluetooth Connection Slows Everything Down
 
Have any of you guys upgraded to MR1? It's supposed to fix the bluetooth stack.

jeff_roey 05-02-2010 07:36 PM

Re: Bluetooth Connection Slows Everything Down
 
Quote:

Originally Posted by johncal (Post 1731174)
Have any of you guys upgraded to MR1? It's supposed to fix the bluetooth stack.

I've updated and agree the BT stack seems much improved (call quality, connectivity, etc.) but it doesn't seem to have solved this issue. I still experience this issue on occassion and have to rebuild my pim.vol. I've sort of adapted to it and keep known copies of a working pim.vol at the ready.

I use SPB Backup and I'm starting to wonder if its backup feature could be at the root of the problem. I've been swapping ROMs so much lately it's hard to tie a pim.vol going south to a backup but it's just a hunch.

johncal 05-02-2010 08:29 PM

Re: Bluetooth Connection Slows Everything Down
 
Quote:

Originally Posted by jeff_roey (Post 1731368)
I've updated and agree the BT stack seems much improved (call quality, connectivity, etc.) but it doesn't seem to have solved this issue. I still experience this issue on occassion and have to rebuild my pim.vol. I've sort of adapted to it and keep known copies of a working pim.vol at the ready.

I use SPB Backup and I'm starting to wonder if its backup feature could be at the root of the problem. I've been swapping ROMs so much lately it's hard to tie a pim.vol going south to a backup but it's just a hunch.

Could be, but you can always do selective restores.

MegaZapFan 05-10-2010 12:18 PM

Re: Bluetooth Connection Slows Everything Down
 
Quote:

Originally Posted by johncal (Post 1731174)
Have any of you guys upgraded to MR1? It's supposed to fix the bluetooth stack.

I have the same issue with my car. BT works fine for a period of time after a hard reset and reinstall of apps, then eventualyl slows down.

I'm running ROM version 3.04.605.7

what is the "MR1" you mention above? Do I have that already with this ROM version?

EDIT: Found the link, looks like that *is* the 3.04 ROM, right? If so, the answer's yes, the slow-when-using-bluetooth issue still happens with this ROM.


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