No Outgoing Bluetooth Port option . . . is my XDA EXEC a dud - JASJAR, XDA Exec, MDA Pro General

Hi Folks -
Lots and lots of threads dealing with BT issues begin with 'create a new outgoing port' ... and then go on to discuss this or that (usually about tomtom!). BUT, even from a hard reset, in my bluetooth settings, com ports, there is only listed 'new incoming port' There is NO outgoing port entry! The text above the box even merrily goes on about 'to connect to a device, tap 'new outgoing port', but there is only 'incoming port' listed. I can use the incoming port to connect to another phone and send/recieve files via BT, so I know the BT works in general. This is true from hard reset in both corporate and personal setup. Any ideas anyone? I'm hoping for a registry tweak that will make the outgoing port appear for use so I can use my buttonless BT GPS (which works with my P910i just fine!)
Or, is my Exec a dud...sob..
Thanks in advance all,
Blueearth

This is still the case after you've paired the devices? (PPC & GPS) :?

I cannot pair with the GPS - it's one of those with only an on-off button. The Exec doesn't find it when clicking the 'new partnership', though it can locate another BT phone, and the GPS works fine with my SE P910, so I don't think it's a hardwear fault necessarily. What troubles me is that under the com ports tab, the instructions talk about clicking on 'new outgoing port' - but there is no such text in the box below, only the 'new incoming port'.
Anything spring to mind?

blueearth said:
I cannot pair with the GPS - it's one of those with only an on-off button. The Exec doesn't find it when clicking the 'new partnership', though it can locate another BT phone, and the GPS works fine with my SE P910, so I don't think it's a hardwear fault necessarily. What troubles me is that under the com ports tab, the instructions talk about clicking on 'new outgoing port' - but there is no such text in the box below, only the 'new incoming port'.
Anything spring to mind?
Click to expand...
Click to collapse
The 'new outgoing port' only appears after you've paired with a device and checked the Serial Port service for it. Delete all pairings and try to pair with your GPS again. Even on the p910, you have to pair with the GPS before it works, so the GPS apparently has working pairing.

Try switching on your GPS and holding in the on/off button until the BT indicator on it either comes on constantly or starts to flash, then try searching for it from your phone.

Hi -
Thanks, both for the suggestions - I will try them when I get back from work and let you know!
BlueEarth

Still no luck I'm afraid, though I see what you mean by the outgoing port only appearing after a parnership is set up (when I partner to my P910).
I think, in the absence of any other thoughts, that it must be that the BT GPS I am using (a Youngtek GNT-120) is just not recognized by the Exec. Typical M$! You can just believe they'd mess with the Bluetooth Standard, which on all other BT devices I have ever used - including this particular BT GPS with several other phones - has worked flawlessly.
Can anyone post the model of their BT GPS device which does get 'seen' by the Universal/Exec? Looks like I'll be selling mine on ebay and getting a different model
Thanks all - if you can let me know a BT GPS which will be hassle free to partner I would appreciate it!
Blueearth

oink1 said:
This is still the case after you've paired the devices? (PPC & GPS) :?
Click to expand...
Click to collapse
edit. xda hiccup.
Sent from a frequent flasher.

Related

Com 6 Just Not Not Seen At All - Help ??

Guys - UK MDA Vario... cant get ANY GPS app to see my BT GPS. I have the Outbound port set as Com 6 but no apps can see it ( the port that is ) ... Any suggestions ?
TIA
PS tried Com 7 as well. ( and I've been working on this for 2 days now )
Terran
BTW Get a '?' next to the Bluetooth item the Qstarz BT-Q880 GPS... but it defo works on my PC.
Found this... http://www.bluetooth.jazztel.es/ - Going to give it a go...
Please download the latest version from the download area and install it. Just execute the installer. Afterwards you will find a new line for the power management on the today screen. Next time when you bond a Bluetooth device there will be an additional dialog after entering the pin and confirming the device name. Therefore you should first remove your device again if you bonded them already.
The "Today" screen
The icon on the left activates or deactivates Bluetooth. The clock symbol switches automatic power off for Bluetooth on or off. When activated (white backround as in the picture) then Bluetooth will be switch off after 60sec of inactivity.
The two battery icons on the right side let you switch between two profiles for auto power off of the PDA and the back light. For example you may switch to the second mode and adjust the settings to "always on" and "never switch back light off". Thereby you can switch the PDA with one simple to "always on" when you are in your car and want to use GPS navigation.
The profiles
Add your Bluetooth device as usual. You will get now a new dialog after the last step:
Please note that currently only the following profiles are available
Headset/Car kit Serial port ActiveSync Modem
Headset/Car kit
With this profile you may use your headset or car kit to make phone calls. Both headsets (headset profile) and car kits (handsfree profile) are supported and you may use up to 9 devices.
Bluetooth is switched on automatically on incoming calls. However it take some seconds until the connection to the headset/car kit is established. If you leave Bluetooth always on there is no delay.
The call is passed always to the device where you take the call. This means if you answer with the PDA button then the built-in speaker is used. If you used the headset button the call will be passed to the corresponding headset.
To pass the call from the PDA to the headset or from one headset to another just press button of the corresponding headset.
To hang up just press the button on the currently active headset or use the PDA button.
Obviously you can only dial via headset if you leave Bluetooth always on. The button on the headset acts like the phone button on the PDA. This means pressing it the first time switch the PDA on (if powered off) and switches to the phone application. Pressing the button again dials the last number.
Serial port
With the serial port profile you can use a device, which emulates a serial port, like a GPS receiver for example. After marking the checkbox you can select the desired port. Just click on OK and now your serial port is ready to use. Just start your application and choose the same port.
ActiveSync
Just mark the checkbox below ActiveSync and click on OK. Now start ActiveSync from the Start menu. There is now a new entry in the menu of ActiveSync to use the Bluetooth connection. Naturally this connection uses data encryption to protect your data.
Note: To use the ActiveSync connection you must identify the virtual port on your PC and configure ActiveSync accordingly.
Modem
I could not try this function because I don't have a Bluetooth modem but it should work without any problems. Just mark the checkbox and click on OK. Now your modem is ready to use.
Click to expand...
Click to collapse
Terran
You probably need GPS software that is compatible with Windows Mobile 5. However, most of them are not entirely updated to support WM5 just yet. I hear some people have gotten Navigon to work, and TomTom with a huge workaround. Destinator PN5 doesn't see the COM ports. iGuidance 2.1.3 works beautifully except for the map-loader not working through ActiveSync 4.x.
try looking at this link....
http://forum.xda-developers.com/viewtopic.php?t=29606
aliendad said:
try looking at this link....
http://forum.xda-developers.com/viewtopic.php?t=29606
Click to expand...
Click to collapse
Thanks - seen it...
Followed
STEP 4 : INSTALL TOMTOM5
1. Establish a bond with your GPS and select the checkbox for serial access.
2. In the GPS control panel, select the GPS program to 6 and make sure that the hardware one, is set to None.
4. Start TT5 and the GPS settings, select another bluetooth GPS, and you will see COM 6 free. Select COM 6 and close TT5.
5. At the GPS control panel again, now select COM (none)
6. At BT: select OUTGOING port to 6.
7. Finally start TT5 and it should connect automatically. Wait for a couple of seconds and click the GPS settings and you should see it has connected.
Manged to see the com port in Tomtom but would not get it to see the GPS.... I'm still wondering becuse of the ? next to the item under the BT Control pannel...... I'm wondering if for some reason it does not recognise this as a GPS and is refusing to talk to it.
That been said it does have serial profile and connects ok...
Terran
it is a bit strange? but officialy TomTom is not mobile 5 ready.
aliendad said:
it is a bit strange? but officialy TomTom is not mobile 5 ready.
Click to expand...
Click to collapse
thats my point... its not just TT that has the issue - tried some really basic progs just to show reception and get the same... ahhhhh
Terran
tomtom doesn't need bt to be enabled on the pda, and if you forget this, (like i used to) other programs wont work if bt is not enabled on the pda
aliendad said:
tomtom doesn't need bt to be enabled on the pda, and if you forget this, (like i used to) other programs wont work if bt is not enabled on the pda
Click to expand...
Click to collapse
But can you have it enabled with Tomtom ( if I follow you ? )
Terran
aliendad said:
tomtom doesn't need bt to be enabled on the pda, and if you forget this, (like i used to) other programs wont work if bt is not enabled on the pda
Click to expand...
Click to collapse
This comment was usfull - I removed the BT support from Tomtom and the other progs 'VisualGPS' can now see it.... still working on Tom tom though
Terran
EDIT Yaaaa it works...
Upgraded to 5.1 and sussed... so overview for my Vairo install proceedure ( 3 days this has took lol )
Enable the GPS control pannel - but TBH I dont think you acutally need this any way
Added GPS as per prev threds ( ie Add com 6 etc )
Install Tomtom but not the BT support pack
Install the update
Set GPS settings
Job done
Terran

TomTom - GPS receiver with short memory?

Hi,
I've trawled the forum and I've followed all the TomTom setup procedures. The Problem is they seem to be for people who can't get TomTom working at all. I can get it working, just awkwardly.
Once I pair with my GPS receiver and go into TomTom i can get a connection. However when i quit TomTom and turn off the GPS it seems to forget. Next time I turn it on I don't get a connection.
The way I understand TomTom is that it seems to wait for the GPS receiver to contact the phone. This seems odd as I would have thought the phone would be the one to initiate contact.
Anyway my GPS receiver just seems to forget what phone it was connected to. TomTom obviously isn't forgetting the port, windows obviously isn't forgetting the pairing. But Every time I use it I have to re-pair the receiver (thus reminding the receiver of the phone it's supposed to be bonded to). It's beginning to drive me a bit insane.
Anyone else have this issue? Perhaps it's to do with my incoming and outcoming ports? Hopefully someone has already solved this? Not seen any references to it anywhere.
Lewis
Hello,
Which version of Tomtom are you using ? The last one (5.21) ? If not, try to upgrade and try again.
Yep 5.2 latest release.
I was hoping upgrade would fix it but alas no.
Lewis
BigDamHero said:
Yep 5.2 latest release.
I was hoping upgrade would fix it but alas no.
Lewis
Click to expand...
Click to collapse
Don't mean to be picky, but 5.2 or 5.21?
I've held off installing TTN on my Wizard, as it works fine on my iPAQ 4700, I have a cradle for that, and according to ttcode, my current device is actually my old 3970, not the current iPAQ... Last week, I had a couple of hour drive to do, so I thought I'd give it a whirl. After an email exchange with TomTom support (who were more helpful than I'd originally given them credit for), I had a new activation code for the Wizard. Here's what I did, from a fairly recent hard reset with no previous TTN install whatsoever. Skip the mail if it doesn't look helpful, but I'll detail my steps in case it helps anyone else...
Although I believe the PC install is mended in 5.21 I copied the map and voice cab files from the CD to my SD card and installed them from there. The GPS drivers and main app I installed from the download I got from the TomTom support site by running the setup util on my PC. Once everything was installed, I moved the maps which seemed to finish up in a sub-directory on the card to the root of the card.
I paired the GPS (my old Emtac BT one) and selected serial port profile. I tried all the offered serial ports in the "Other BT GPS" list in TTN but none worked. Then I went to 'COM Ports' in Comm Manager/Bluetooth Settings and selected "New Outgoing Port". I picked the GPS from the list of paired SPP devices, and it created a new BT COM port on COM6. That definately hadn't been in TTN's list of BT com ports before, but is now there in the list with about half a dozen others. I selected that in the "Other BT GPS" list of BT ports, and TTN connects to the GPS each time.
As I said, I'd recently hard reset the device to try and prove a problem with my BT car-kit soit's quite possible the clean install was the secret, but try creating a new outgoing COM port against the GPS and see if TT remembers that...
Dox
BigDamHero said:
Hi,
I've trawled the forum and I've followed all the TomTom setup procedures.
Click to expand...
Click to collapse
Which?
There are 2 general ways to set it up, 1 works 100% (i use it so know it does ) 1 i dont use and have never tried so may well work in the reverse direction and be causing you errors.
The way i set up tomtom; pair the BT GPS. Open an OUTGOING port to the BT GPS, set my GPS as OTHER (wired/cable) NEMA device (NOT bluetooth) in TTN5. now my tomtom connects to the bluetooth, not the otherway round. This method has thrown up no errors for me at all.
If you have followed the reg edit/hack to show the GPS page in connections then i dont know how the settings differ and the possible results this could have on connection issues.
Let us know which way you are going
I have the exact problem as BigDamHero. Each time I wanna use TTN, I need to delete the previously paired BT GPS and then pair it again, otherwise the TTN will just say No GPS Device. I use TTN v5.21 and Wizard with Windows Mobile 5. I tried my BT GPS device on my brother's PDA which runs on Windows Mobile 3, and it connects like a gem every time. I am also looking if anyone has solved this issue, cos it is tedious re-pairing every time.
Had the same problem until 5 mins ago! Found an explanation in another thread, but only in Dutch..
Here's how to do it:
Turn on GPS
Activate bluetooth on device, go to BT parameters, delete previous pairing like you're used to
Create new pairing, choose GPS, enter passkey, check Serial port in services, go to COM ports and add outgoing port (e.g. COM6) like you're still used to :roll:
Add an incoming port too (e.g. COM7) <-- Here's the trick!
Set your GPS apps to use COM6 (the outgoing one)... and here you are! This time it will work, you can turn off GPS and device bluetooth, turn on again and it will connect by itself.
If you want a bit more you can activate GPS panel, set program port to COM8 (then you will have to use this in your apps) and COM6 as hardware port.
Everything works fine now!
hey man, wot a coincidence....i also just read that post which had the dutch explanation.....BUT however, it's not working for me.
toneslee said:
hey man, wot a coincidence....i also just read that post which had the dutch explanation.....BUT however, it's not working for me.
Click to expand...
Click to collapse
I did everything in the list except for creating the incoming port and it still works everytime (I know that's no consellation to you). I wonder if something else you've installed, or the way you installed the app is causing the problem? Is it worth a hard reset and trying the entire install on a clean wizard?
Dox
A friend didn't need the incoming port either. I believe it has something to do with the GPS, as he has a different brand than me.
With mine, before adding the incoming port if I started an app without erasing/redoing the pairing before I would get a notification saying "Navman GPS wants to connect" and asking me to pair. It would keep coming every 10 seconds whatever I did.
BigDamHero, what brand / model of GPS is it?
Maybe we can see if anybody here, or over on pocketgpsworld has been able to make the same combination work and if so, what they had to do to get it to fly...
Dox.
well, tomtom was the very first thing I installed when I got my new vario. it was only after I got tomtom fully working (but still need to re-pair everytime), then I installed a couple of simple Card games.
toneslee said:
well, tomtom was the very first thing I installed when I got my new vario. it was only after I got tomtom fully working (but still need to re-pair everytime), then I installed a couple of simple Card games.
Click to expand...
Click to collapse
A quick glance at pocketgps suggests others are having similar issues. There's a thread here that suggests leaving it a while, and I seem to remember other GPS issue threads saying power up the GPS and let it get a fix before starting TTN. A more detailed probe round the forum will probably show more of the same.
Dox
I've just flashed my Qtek 9100 to a new ROM, (the O2 one), and since then I've been getting this same problem. With my previous ROM everything worked fine. I was able to turn of either my PDA or GPS, and they would always auto-reconnect in a few seconds. Looks to me like something broke during one of the ROM changes. Which ROM versions does everyone with/without this problem have?
By the way, I have a BT77 GPS.
Hey sorry for the total lack of reply. Been snowed under with exams.
Ok I tried most of what you guys said but didn`t work. BT ports aren't available to select as hardware ports.
However I have managed to solve it. The key was to pair the GPS, and create an UNENCRYPTED OUTGOING port. That's all. Previously I had encrypted ports outgoing and incoming. My GPS applet in control pannel is set to none so it,s nothing to do with that.
I don't know what my GPS is. Its unbranded. One of the cheap common ones.
Hope this helps some people with the same problem.
Lewis

Please help: can't beam files using bluetooth port.

i have a mda vario and i want to beam files to another phone thru bluetooth but there is no outgoing port. when i go to bluetooth settings and to com ports, only new incoming port is shown. i cant add a new outgoing port. please someone help me on this.
lsnizzle said:
i have a mda vario and i want to beam files to another phone thru bluetooth but there is no outgoing port. when i go to bluetooth settings and to com ports, only new incoming port is shown. i cant add a new outgoing port. please someone help me on this.
Click to expand...
Click to collapse
Hi,
You'll probably need to start bluetooth via the comm manager.
It will find other hardware with open bluetooth ports.
- Go to the file you wish to beam to someone else.
- Tap the file (keep the stylus on it untill you get the menu)
- Choose " send file" (this might be called differently, my version is dutch)
- Select bluetooth.
Good luck!
Greetz,
Flar
it doesnt seem to work
when I beam a file, it never detects a bluetooth. all it shows is the Infared and searching... it searches for a long time but never detects a bluetooth. any other suggestions?
Re: it doesnt seem to work
lsnizzle said:
when I beam a file, it never detects a bluetooth. all it shows is the Infared and searching... it searches for a long time but never detects a bluetooth. any other suggestions?
Click to expand...
Click to collapse
Hi,
The procedure I gave seems to work properly with my MDA.
You could check if the person you're beaming to has bluetooth (turned on) but I guess you've checked that already.
Otherwise try to minimize the distance between the two pieces of hardware.
If that doesn't solve your problem, I can't help you any further, maybe bring it by the shop where you bought it to have it checked?
Good luck & greetz,
Flar
yeah same here never managed to get bluetooth to work
i found that i needed to enable beam recieve in order to recieve on bluetooth, the incoming and outgoing port stuff i left alone.
so i can now receive files but haven't got a clue how to send them, i make a bluetooth partnership ok (my mate can then send me a file) but i can not find the option to send one back. the file explorer menu doesn't have bluetooth listed on it?
R_J_Webb said:
yeah same here never managed to get bluetooth to work
i found that i needed to enable beam recieve in order to recieve on bluetooth, the incoming and outgoing port stuff i left alone.
so i can now receive files but haven't got a clue how to send them, i make a bluetooth partnership ok (my mate can then send me a file) but i can not find the option to send one back. the file explorer menu doesn't have bluetooth listed on it?
Click to expand...
Click to collapse
I am having this same issue. Anyone know the solution? All I want to do is send some files to my wife's v3 but I cant setup a new outgoing port. I am running the latest official rom from cingular.
You need to ensure you already have bluetooth turned on before starting this procedure (many miss this simple point, as they assume it will automatically turned on)
Tap and hold on the file you want to send, and select "Beam"
Wait a few seconds for it to scan for devices.
All IRDA recipients (If any) will be listed, and below them, all available Bluetooth recipients will be shown.
Hope this helps you m8
I'm using TMobile MDA, newest ROM, and having the same problem, I'm able to recieve bluetooth but there is no option for beaming a file via bluetooth, only IR... and yes, bluetooth is enabled properly and I am properly partnered with a V3...
RE: can't beam files using bluetooth port.
lsnizzle said:
i have a mda vario and i want to beam files to another phone thru bluetooth but there is no outgoing port. when i go to bluetooth settings and to com ports, only new incoming port is shown. i cant add a new outgoing port. please someone help me on this.
Click to expand...
Click to collapse
Make sure both phones are enabled to be "seen" . My friend and I were trying to figure this out the other day, and she has her device set to something like 'make this device invisible' so even though our phones were next to each other, her device wasn't showing up. Once we changed this, both devices were visible.
***However, neither phone was allowing the sending of files to each other thru the bluetooth, and I'm wondering if this has something to do with her having a Sprint Treo 650 w/ Palm OS, and I have Cingular 8125 w/ WM5.... anyone have any answers for this one??***
Thanks in advance.

Bluetooth GPS Help

Now, do excuse me if i'm having my normal blonde moments but i think i am going to need help before i throw my MDA in the bin for good.
I brought TomTom Nav 6 which arrived today, has gone onto my phone and works perfect.
I already had a GPS Device from when i had Nav 5 and used an XDA (which for me was much better as bluetooth actually worked properly)
No matter what i try, my GPS Device cannot be found. I have paired them the best i can, i have set up an Outgoing COM port on 7 (this is using the GPS Device's name) and an Incoming on 6.
Is there anything else i can try of have i just wasted £150?
Thanks
Cheryl
Hi Cheryl,
Just to try and help you a little, can I suggest the following.
In Bluetooth settings/com ports, delete the port you have assigned to your GPS.
Then delete the GPS from the Devices list and re-discover and re pair it again.
While you are in this paring process, there will be a box labelled "Secure connection", (Or something like that)
Make sure it has not got a tick in it. The secure connection affects the pairing somehow.
When you have paired the GPS, go back to the Com Ports section and tap New OUTGOING Connection and assign it to Com6.
This is what my TT6 is set to and works very well.
I hope that helps.
Thanks for your help, thats perfect and it works.
Do you know why my Active Sync has now stopped working?? I am very think when it comes to PCs. It worked earlier, now it doesnt. In settings it says No Com Ports Available?
Cheers
Chez
Sorry for taking so long to reply.
When you set the com port for the GPS, before you asked on here, you set it to com 7 didnt you?
Ok, if so, have you made sure you have deleted that from the settings??
i.e: You should only have Com 6 set for your GPS and no others.
Other than that, I wouldnt know what to suggest, sorry.

Bluetooth GPS want to re-pair all the time

Hi folks,
I upgraded my Hermes with Schap's Windows Mobile 6 ROM. Works fine so far. But when I try to use my Bluetooth GPS it acts strange.
I paired the Bluetooth device and set up a COM-port for the applications. The first time it works. The next time, when I switch on Bluetooth and start for example TomTom, the Hermes tells me there is a new Bluetooth device that wants to connect. I checked and found out the GPS is still in the list of known Bluetooth devices and the COM-port is set. But the assistant is still bugging until I add the "new" device. After that of course my "old" device is gone.
How can I avoid this? Anyone experiencing the same problem?
I have the same issue, really annoying so would love to know the answer
Tafkas.Net said:
Hi folks,
I upgraded my Hermes with Schap's Windows Mobile 6 ROM. Works fine so far. But when I try to use my Bluetooth GPS it acts strange.
I paired the Bluetooth device and set up a COM-port for the applications. The first time it works. The next time, when I switch on Bluetooth and start for example TomTom, the Hermes tells me there is a new Bluetooth device that wants to connect. I checked and found out the GPS is still in the list of known Bluetooth devices and the COM-port is set. But the assistant is still bugging until I add the "new" device. After that of course my "old" device is gone.
How can I avoid this? Anyone experiencing the same problem?
Click to expand...
Click to collapse
On your Hermes:
Have you tried to checked off: "Make this device visible to other devices"?
Under: Start\Settings\Connections\Bluetooth\Mode (2nd tab on the bottom)
Option #1 (Hermes)
~If, "Make this device visible to other devices is not enabled, delete the pairing for your GPS.
~Check off "Make this device visible to other devices"
~Pair your GPS again (ensure that "Make this device visible to other devices" is still enabled)
Option #2 (GPS)
Don't know what kind of settings for bluetooth you may have on your GPS. I found for my car stereo, that I needed to leave it, in the "waiting/open for connection mode.
Now when I turn the car on it automatically connects the phone and stereo off my Hermes.
What I'm basically saying here is there may be a setting to leave your GPS automatically open for bluetooth connections?
I think option #1 may do the trick....
Hope this helps! Good Luck!
jac said:
On your Hermes:
Have you tried to checked off: "Make this device visible to other devices"?
Under: Start\Settings\Connections\Bluetooth\Mode (2nd tab on the bottom)
Option #1 (Hermes)
~If, "Make this device visible to other devices is not enabled, delete the pairing for your GPS.
~Check off "Make this device visible to other devices"
~Pair your GPS again (ensure that "Make this device visible to other devices" is still enabled)
Option #2 (GPS)
Don't know what kind of settings for bluetooth you may have on your GPS. I found for my car stereo, that I needed to leave it, in the "waiting/open for connection mode.
Now when I turn the car on it automatically connects the phone and stereo off my Hermes.
What I'm basically saying here is there may be a setting to leave your GPS automatically open for bluetooth connections?
I think option #1 may do the trick....
Hope this helps! Good Luck!
Click to expand...
Click to collapse
Mine is set to NOT be visable to others & my bluetooth GPS device just ha a on/off button.
paul8811 said:
Mine is set to NOT be visible to others & my bluetooth GPS device just ha a on/off button.
Click to expand...
Click to collapse
If your concerned about Security you can always change the Pairing codes.
and or turn off bluetooth when not needed.
I'm unaware of any cases where one can connect unless there paired, so in most cases access needs to be allowed on both ends, usually needing pairing codes. Even if it is one way, an approval code will still be needed.
What I found is this, if you want automatic connecting with one way pairing codes i.e. (Car Stereo to PDA or GPS to PDA) You'll need to allow "make device visible" checked off. The usual cause is a memory storing issue with the GPS or Car Stereo. I know that on high end Stereo's and GPS's they have on board memory which will save connection settings, where you'd put pairing codes on both ends and it will save the settings, thus negating the need to leave visible.
Don't know if I answered your question?
Hope I was able to shed some light on the subject....
Good Luck!

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