Dell Latitiude D630 Bluetooth issues

[ratdude747]

The bluetooth (dell truemobile 360) in my Dell Latitude D630 started acting flaskey a few weeks ago and last week it entirely went out. The system was also very unstable (BSODs and the like) until I removed the bluetooth module.

I ordered a replacement module, plugged it in, and no change.

The bluetooth LED lights but lsusb in linux doesn't show it at all.

I already checked the palmrest header (which include the bluetooth cable)... it's plugged in and seated

I'd hate to think it's a BGA issue... but I would like to eventually be able to have bluetooth in it again.

Any suggestions?

[smason]

Re: Dell Latitiude D630 Bluetooth issues

Driver issue?

[ratdude747]

Re: Dell Latitiude D630 Bluetooth issues

Driver issue?

not likely, since lsusb doesn't require drivers to see things. Not to mention the bluetooth module is a no show under all 3 OS's on the laptop (Ubuntu 12.10 x64, Win 7 x64, Win Xp x32).

[spidey]

Re: Dell Latitiude D630 Bluetooth issues

check if there is +3.3v, also check resistors and capasitors. if cant find any problem then reflow ich8-m. goodluck...

[ratdude747]

Re: Dell Latitiude D630 Bluetooth issues

I heard from a buddy who works with the D620/D630 that the palmrest cables are suspect; he's had them mysteriosly fail causing touchpad failures (none of them had Bluetooth modules though). I had been wanting to upgrade it to a toughpad with a fingerprint reader, so I bought a used replacement palmrest with a good cable and fingerprint reader (also had the BT module still installed ironically)... for a measly price of $16 shipped, I figure it's worth a try. If that fails, I'll have to wait until the semester ends until I have a chance to open it up and do further diagnosing.

[fddizon]

Re: Dell Latitiude D630 Bluetooth issues

see the schematic. determine the whole circuit that will make the bt to work properly.
from there you will know where to start. BT is a usb device... find the chip responsible, does it work? BT has a supply of 3.3v, find the supply chip, does it give the right voltage when switched on? atc....

[ratdude747]

Re: Dell Latitiude D630 Bluetooth issues

Changed the palmrest, no change.

I'll have to troubleshoot it when I have time... it's my main school laptop and it's almost always in use.

[ratdude747]

Re: Dell Latitiude D630 Bluetooth issues

Never mind... After juggling truemobile 360 modules, I got one to show up and work.

Now finding a fingerprint suite with x64 support... not so easy (all i got was a driver).

[ratdude747]

Re: Dell Latitiude D630 Bluetooth issues

ow finding a fingerprint suite with x64 support... not so easy (all i got was a driver).

Fixed. I tried a copy of Digital persona (what HP uses) and it saw and worked with my touchstrip just fine.