Tomtom 7 - Poor GPS reception, are you in a building? - Touch Diamond, MDA Compact IV General

I have had trouble with the GPS on my device ever since I received it.
The start-up time is very slow 5-10 minutes standing in the garden.
In the car I very rarely get a lock at all
Once I finally get a lock the signal is poor and drops out easily.
When I restart a GPS app (even 10 minutes after closing) it seems to take the same amount of time to re-start as though it is starting from cold again.
I've tried Google Maps, TT6 and the HTC GPS tool, several different ROM versions, aGPS on and off, Quick GPS on and off. None of which seem to make any difference.
Yesterday I decided to give TT7 a try and had the same problem getting a signal but also had the following message on the GPS screen 'Poor GPS reception, are you in a building?' I'm now convinced this is a hardware issue as my previous touch diamond (HK version returned due to a faulty speaker) picked up the signal quickly and was very reliable. I have spoken to the Expansys about this, but they have said that if I can get a signal at all then it is not a hardware problem and must be software related.
Is anyone else having similar problems or getting the same message in TT7
More importantly any one managed to find a fix for this?

If TomTom has a weak signal, then "Are you in a building" is a standard message TT7 is giving. Whether you're in a building, a basement or metal encapsulation.... it will give you that message Mine takes about 15 - 30 seconds to get a fix, with TT7 when I use it for the first time after my phone has booted.

I still get this message if i'm standing in the middle of my garden. The performance you are getting is similar to what I had on my first device, Which was one of the Hong Kong devices from Expansys. The replacment which I am now using is a European version. can I ask which version of the phone you are using.

angus99 said:
I have had trouble with the GPS on my device ever since I received it.
The start-up time is very slow 5-10 minutes standing in the garden.
In the car I very rarely get a lock at all
Once I finally get a lock the signal is poor and drops out easily.
When I restart a GPS app (even 10 minutes after closing) it seems to take the same amount of time to re-start as though it is starting from cold again.
I've tried Google Maps, TT6 and the HTC GPS tool, several different ROM versions, aGPS on and off, Quick GPS on and off. None of which seem to make any difference.
Yesterday I decided to give TT7 a try and had the same problem getting a signal but also had the following message on the GPS screen 'Poor GPS reception, are you in a building?' I'm now convinced this is a hardware issue as my previous touch diamond (HK version returned due to a faulty speaker) picked up the signal quickly and was very reliable. I have spoken to the Expansys about this, but they have said that if I can get a signal at all then it is not a hardware problem and must be software related.
Is anyone else having similar problems or getting the same message in TT7
More importantly any one managed to find a fix for this?
Click to expand...
Click to collapse
What ROM version do you have?
My HK one had issues with the shipped 1.34 ROM but is fine now...
Have you changed any of the default settings for GPS?
I have not changed any settings and my TT works fine.

angus99 said:
I still get this message if i'm standing in the middle of my garden. The performance you are getting is similar to what I had on my first device, Which was one of the Hong Kong devices from Expansys. The replacment which I am now using is a European version. can I ask which version of the phone you are using.
Click to expand...
Click to collapse
Mine is European too, Dutch to be specific.
It's running rom 1.37.404.3.

Same problem in my samsung omnia
I'm using 7.450 build 9080 I'm sure it's a tomtom issue cos pocket street can fix the gps position, but tomtom keep me saying poor gps reception.
I have setted the gps to com7 and hardware com9 4800, I have also disabled the enhanced gps.
Ay help please or if someone knows how to disabled the internal gps so I can use my external gps receiver.
Regards,
Hlov

i noticed the although it might look a long time for tomtom to get a fix, just enter your destination anyway and it seems fix goes hell of a lot faster!

angus99 said:
I have had trouble with the GPS on my device ever since I received it.
The start-up time is very slow 5-10 minutes standing in the garden.
In the car I very rarely get a lock at all
Once I finally get a lock the signal is poor and drops out easily.
When I restart a GPS app (even 10 minutes after closing) it seems to take the same amount of time to re-start as though it is starting from cold again.
I've tried Google Maps, TT6 and the HTC GPS tool, several different ROM versions, aGPS on and off, Quick GPS on and off. None of which seem to make any difference.
Yesterday I decided to give TT7 a try and had the same problem getting a signal but also had the following message on the GPS screen 'Poor GPS reception, are you in a building?' I'm now convinced this is a hardware issue as my previous touch diamond (HK version returned due to a faulty speaker) picked up the signal quickly and was very reliable. I have spoken to the Expansys about this, but they have said that if I can get a signal at all then it is not a hardware problem and must be software related.
Is anyone else having similar problems or getting the same message in TT7
More importantly any one managed to find a fix for this?
Click to expand...
Click to collapse
I have the same problem. Can't figure it out. My signal i sporadig. Specially when you go to settings....show gps status. I can see hoe the gps gets contact for a cpuple of seconds and then disconnect. And it does this over and over again. I can se my position, but the map never gets in colour....strange...

Have you tried updating quickgps? I find that unless the quickgps data is valid, tomtom can't find any satellites.

Related

GPS not working suddenly!

Help! Only had this a couple of weeks and it's starting to drive me nuts. When I first got it, Google Maps had no trouble finding satellites but now it comes up with 'No GPS receiver was found' screen over and over. I did switch QuickGPS off for a bit and I think it's since then it's not worked right. Does anyone have any idea what I can do? It's a UK branded Orange TytnII (Kaiser).
*I really want to start messing about with ROMs too but have a Mac and don't think there's a way I can is there?
Have you tried going outside? Line of sight sometimes will work!
Yes I have, hasn't worked. It wasn't working when I was walking round London yesterday but I assumed the tall buildings were causing the problem but now I'm in exactly the same place I was when I first got the phone and then it was was picking up 4/5 satellites. Now it's just coming up with a screen telling me I have no GPS receiver. Could the receiver in the phone have been damaged? I haven't dropped it or anything and have been pretty careful with it.
Reinstalled Google Maps. Now seems to be working. Grrr. Sorry to have bothered everyone.
Read this thread for a possible fix; http://forum.xda-developers.com/showthread.php?t=333275
You probably need to run quick GPS and get the download.
I have this set automatically now and it usually downloads weekly. I often wonder what I'd do if I needed the GPS somewhere where there was no phone signal to download the updates!
Hi, I had the same problem, and all apps GPS don't work !
Hard reset no change the problem.
I sent htc support, Finally they changed the motherboard !

No GPS reception

Can someone please help me?
I have tried these programs:
Tomtom 6
Tomtom 7
GPSdash
BeeLineGPS
WMMiniGPS
GPS tuner
Google maps
I'm using the latest TLR ROM. My GPS setting are default. Com4 Baud rate: 4800.
Here's the problem. The programs seem to find the receiver and seem to find the satellites. (10-15). But I can get absolutely no signal at all. Indoors or outdoors.
I'm getting quite desperate
Have you used any of the tweaks for GPS? I ask as I did but my signal kept dropping - so I turned the tweak off and now it is fine.
I would also suggest using the QuickGPS application to get the Satellite information quicker
I've tried disabling agps. Didn't help. And yes I have used QuickGPS... but no luck.
Any suggestions? : [
slicker said:
Any suggestions? : [
Click to expand...
Click to collapse
Was it the first try? When I tried first it was 6-8 minutes. Where do you try? In the outdoor?
Have you ever used it?
TB
Do you have correct setting "GPS is managed automatically" ?
When I set to GPS is managed manually, I could not found any way to power on builtin GPS. You have to check box "GPS is managed automatically". I think, it may be point of your problem
I had the exact same issue dude... TomTom 6 didn't work so I installed TomTOm 7... still no signal... even with QuickGPS ran...
Google Maps didn't work either....
I'm not sure what I did in the end... took out the battery, set GPS to 'let windows manage automatically' and ran Quick GPS again.. then run TomTOm 7, go to the 'GPS Status' screen which shows the sat signal charts and stand in a wide open area for 5 mins.. ever since then it has worked fine
all the best.
btw you have to make sure your system date and time are accurate coz otherwise it'll be searching for Sats with a wrong reference to the Sat almanac..
Yes, it's set to manage automatically. I've been trying to get a signal by the window, I left the device just sitting there for more than a half hour and still nothing. I guess I'll have to try longer while being outdoors. Hope it helps... but thanks for your help.
I did that too and it didn't work for me. You have to be outside for the 1st time GPS fix and make sure you run QuickGPS before that. Ohh yeah use TomTom 7 to detect the signal... I find that the most reliable somehow... and be sure it's configured to use the built-in GPS receiver...
I know it feels odd... I nearly sent my unit back for warranty because I was very convinced that the patch antenna was somehow disconnected from the chip. lol.
I had the same issue at one point, due to my fiddling and inadequate hacking attempts!
see if you can track down the HTC GPS tool (it's here on XDA somewhere, but i can't find a link at the mo) and run that.
Chipset should be set to Q7200 (yes i know its actually a 7201A but it works the same) and com port to com 4.
Tap the open port button and you should see the GOS info scrolling through the grey window in the program.
If you see nothing, check the external GPS settings
program tab should be com 4
hardware tab should be non and 4800
last tab should be ticked.
if you still get no GPS info scrolling through the gps tool, then it seems you have the same problem i did. Sadly, i had to hard reset it to get it working again, but it has been perfect ever since.
FYI, this started happening once i had turned aGPS on, and even turning it off did not work for me, so if you have to hard reset, i wouldn't bother ever turning the aGPS on again.
where's the option to turn aGPS on/off?
I just remembered how I resolved my issue... I put a SIM card in I had previously been trying to use it with WiFi (to update QuickGPS) but once I had a SIM in there, the GPS worked. Could it be because I'm now using aGPS? hmm...
you need to install schaps advanced config tool to get to the setting to turn aGPS on and off again.
it seems to be off by default btw.
rhedgehog said:
you need to install schaps advanced config tool to get to the setting to turn aGPS on and off again.
it seems to be off by default btw.
Click to expand...
Click to collapse
I also kept lossing the GPS signal with this on every few seconds. So I turned it off for good
did you maybe install voip on your diamond? If so that's your problem there. Hard reset you diamond don't install voip en there you go.
It worked! Thank you all.... I had to sit for half an hour in direct sunlight but it was well worth it... I'm new to gps... do you have to do this with every new gps receiver or is this just another great feature from HTC?
I'm, having the same probelm here.
I'm on my second diamond as the first one (a HK version) had a fault with the internal speeker. On the First phone the internal GPS worked fine with both TOMTOM 6 and Google maps. The initial setup only took about 30 secs.
With the new phone (UK spec) I have tried TT7, TT6 and Google maps. I have also run quiick GPS, hard reset and enabling and disabling assisted GPS using the advanced config tool.
Is there anything else I should try or is this likely to be another hardware issue?
Solution To Gps Problem
if you installed VOIP you should hard reset...gps dead...:-( no other solution.
Help! My Diamond GPS reception is MUCH worse than on my Touch Cruise
Hi,
I've just got a Touch Diamond, and the GPS reception is absolutely appalling. I have hard-reset twice, after which I've done nothing except download a QuickGPS update, but still the signal strength and its ability to connect to satellites is completely inconsistent and unreliable, even outdoors. I CAN get a good signal occasionally, but it's very rare. Most often I get no GPS signals whatsoever, or else I get just a couple of weak greyed-out signal bars in TomTom.
I can lay my Diamond down next to my Touch Cruise (both have identical TomTom 6 software loaded from the same CAB), and the Cruise always launches the app faster, finds the GPS device faster, AND finds adequate satellites faster. The Touch Cruise has a lot of problems, but the one thing it has always been very good at is GPS, and it has NEVER failed to find adequate satellites in TomTom 6, even indoors. It always takes well under a minute to do so, too. It's surely not unreasonable to expect at least the same level of performance from the next generation of device. Why should the Diamond's GPS performance be demonstrably so much worse?!!
Nine times out of ten, my Touch Diamond will simply sit there for an hour or more with the TomTom status bar reading 'Waiting for valid GPS signal...". Quite often when I open the GPS configuration option in TT6, it shows absolutely NO SHRED of a GPS signal whatsoever, even outdoors. (My Diamond and my Cruise have identical GPS settings in both Windows and TomTom, by the way).
The annoying thing is that the Diamond's GPS HAS worked on a couple of rare occasions, and the signal strength has been at least as good as on my Touch Cruise. The Diamond is much worse at holding the signal however, and is totally and utterly unreliable for navigation. It certainly isn't the 'Ultra-sensitive GPS' that HTC's marketing promised - it's nowhere near as good as the GPS on the Cruise, which is the previous generation! The Diamond's GPS DOES work well on very rare occasions - it's just that 95 times out of 100, I'm not getting anything at all. This makes me wonder if it isn't a WM 6.1 compatibility problem or a conflict of some kind. It's almost as if Windows is having difficulty activating/waking the GPS fully. When (and if) it finally gets going, reception is actually very good.
I have also downloaded the HTC GPS Tool as someone here suggested, and it reveals the same results as TomTom - I usually get either no satellites at all, or I get two or three red satellite status bars and a message saying 'Fix not available'. It ALWAYS shows a data stream coming from COM4 though, so there doesn't seem to be any problem actually finding the GPS device. On the rare occasions when I have got a usable GPS signal, the HTC Tool then shows two or three red status bars and three or four green ones as well. During those rare periods, Google Maps can also find anything from three to ten satellites, even indoors. However, the next few times I try the Diamond's GPS, nothing will happen at all - it's suddenly as if all the satellites have fallen out of the sky.
By the way, would QuickGPS make ANY difference on the Diamond? As other have pointed out, aGPS is disabled on the Diamond by default. Aren't QuickGPS and aGPS the same thing? I don't know. But if so, surely the QuickGPS data is useless on the Diamond?
Does anyone have ANY idea how to make GPS on the Diamond work as well as it does on the Touch Cruise? Does anyone know why it doesn't already? Has anyone else done a direct comparison between the Diamond and another HTC device using the same GPS software?
I really like the Diamond, but it's incredibly frustrating that the GPS is unreliable to the point of being unusable. At the moment, I'm having to carry the Cruise for GPS navigation and the Diamond for everything else! Certainly not what I paid for. It should do this stuff straight out of the box. Since it doesn't, I can only assume my device is faulty so if I can't get it fixed by the weekend, I'm returning it for a replacement.
Thanks,
Rob.
P.S. Sorry for such a long post, but I needed to vent.
Hi there, I'm having the same problem as RH Photography.
All the programs are trying to communicate, but no fix at all. Once I got a fix, but only 4 sattelites, when in my car GPS BT had fixed to 9!
Will try hard reset and install HTC GPS tool an try to fix

TD's GPS thread

Hi all,
Could you please, be kind and post you experience with TD's GPS...
Since I got my TD(4 days) I have not been able to test the GPS at all
I have loaded some soft that could help me here. ( I travel a lot between Korea and Japan). Cannot really use the phone here, but WIFI works great and I thought I would give the GPS a test run.....no luck YET..
TD's own: QuickGPS has downloaded(through WIFI) all the info and it is up to date......But how do I set up the GPS itself???
Phone did not come with preloaded GPS software so,I have loaded following soft on itnone of them would recognize the gps)
i.e. " no GPS found."
1.Google Navigator 3.4
2.GPSvp (http://gpsvp.com)
3.Effica GPS Utilities (http://www.efficasoft.com/gpsutilities/index_wm_ppc.html)
I would really like to test out the GPS here first.I am returning to EU (home) in october or november and I would like to use it there as well.
sorry for the bump
I tried the search...not just this forum but all of XDA.....I cannot seem to find one successful step-by step activation as of yet???
Nobody has internal GPS running on their TD??
Anyone?
Runs perfect and is good quality.
Make sure you let windows manage gps (in external GPS settings):
programport COM4
hardwareport none
and in last tap check the checkbox.
Programs find gps at Com4 at 19xxx baud.
THX RIEL
thank You for you reply.
Will try tommorow morning.
Riel said:
Runs perfect and is good quality.
Click to expand...
Click to collapse
Don't you have a problem with the static navigation? This behavior "drives"
me nearly crazy, because beside of that, the GPS in TD is superb...
On mine, no programs can access the GPS and the programs will lock and crash the phone when it tries to connect to GPS.
The onlt one that does not lock the phone is TomTom, but it wont connect to GPS.
I've tried combinations of the recommended port stttings, but I still get no GPS.
I have not activated A-GPS, so I don't know if the phone came with this already activated - how would I check this?
My GPS is a pain in the arse, From what i have read its because of the static navigation. So far it says i live in house number 20 when I live in house number 16 and when i'm on route I'm yet to hear a " You have arrived at your destination" because its accuracy is off about 50 metres.
Hopefully there will be a fix for this very soon.
can someone get me up to speed a bit? what is the 'static navigation' that i keep hearing about..
admittedly, i find sometimes the gps is slightly less accurate at placing my exact location compared to my old Trinity, but otherwise its worked great for me..
PaulusUK said:
On mine, no programs can access the GPS and the programs will lock and crash the phone when it tries to connect to GPS.
The onlt one that does not lock the phone is TomTom, but it wont connect to GPS.
I've tried combinations of the recommended port stttings, but I still get no GPS.
I have not activated A-GPS, so I don't know if the phone came with this already activated - how would I check this?
Click to expand...
Click to collapse
Hey, have you got installed TomTom 7? I'm running TT7 and when I select "internal GPS receiver" it connects perfect. I know this doesn't exist in TT6, but I can also get my GPS running in TT7 if I set it to use a BT receiver on COM4 at 57600 baud. (Assuming you didn't mess around with the standard GPS settings, like HTC meant them to be )
Google maps is using the selection of "use windows settings".
racerx_ said:
can someone get me up to speed a bit? what is the 'static navigation' that i keep hearing about..
admittedly, i find sometimes the gps is slightly less accurate at placing my exact location compared to my old Trinity, but otherwise its worked great for me..
Click to expand...
Click to collapse
Check this thread out.
http://forum.xda-developers.com/showthread.php?t=402039&highlight=static+navigation
and this.
http://forum.xda-developers.com/showthread.php?t=401833&highlight=static+navigation
hi guys
Same problem here. AGPS is disabled. I have tried Garmin,TomTom, iGo and google. 95% of the time it can not lock onto the sats. Once in a while it will work fine. Last night it picked up the sats in my bedroom on the second story and this morning outside in clear sky it found 4 sats but with very low signal and could not give me my cordinates, gave up after 15 min.
I have tried GPS tools and even that won't lock onto the sats. Data is upto date with quick gps.
So is it the hardware problem or has it to do something with radio? It can't be faulty TD because there are a lots of people with the same problem, and why lots of other users have no problems accessing the sats?
How is your gps working?
hi
great going sofar...thanks to all. We still have no real answers.
Let's keep this one going.
Looks like GPS is an issue with TD.
( Other than GPS...I am loving this sweet phone )
Now I am trying different roms to see if it is related to that. Will let you guys know if find anything.
Strange, on all ROMS my GPS reciever just works perfect.
Almost the best piece of hardware on the device
As I mentioned in Another topic, I use the GPS for TrackMe, at the same time I am navigation via Igo, and at the same time I showoff Google Maps with GPS support.
It functions very well!
Did you get the GPS-Fix downloads? It speeds up a lot.
Yes got the gps fix downloads but still no go. Still have not lost the hope. I hope its not some hardware problem.
I was fed up messing with mine, so I did a hard reset, and its sorted ...... for now!
same as Paulus
I did a hard reset....and it works perfect. No other adjustments done.
Tried the TomTom, Tracky Pro, GPS VP, and the HTC GPS Tool....all work no problem...outside I get a fix within a minute sometimes seconds.
I think one of the quirks that the TD's GPS has is that, when it's in Acquiring Satellites mode it doesn't seem to spit out any sort of status. The first time I noticed that I thought my internal GPS wasn't working, since with my external Holux unit I can see the satellites which the Holux was trying to lock onto.
Whereas with the TD's built in GPS it just snaps from nothing to.. acquired. So it's hard to see wheter it hasn't gotten a signal because it's in a poor area of reception or not. Usually I'll just try and stay still till I can get a lock.

AGPS - any proof of it working/providing benefit? (new topic - pls read!)

Now please no groaning when you see this topic. I know the GPS has been hammered to death on these forums; this post is my vein attempt to see if one particular area of interest of mine has at all moved forward.
(let's also side-step the whole "does your GPS lag?" issue here too!)
(..and, for clarify, I'm referring to AGPS as in the use of the mobile phone network to 'assist' positioning by use of triangulation in areas of poor/no GPS reception, and NOT the use of QuickGPS to download current sat. info in an attempt to get a quicker initial fix)
I used to use TomTom Navigator v7.450; it worked (of a fashion! ) although one specific thing that never worked was that whenever AGPS was enabled (using AdvancedConfig or similar) TomTom would get a signal and then immediately drop it again.. on/off on/off etc.. the fix being to disable AGPS.
I must admit I'm suspicious about HTC having their stock ROMs with AGPS disabled by default - especially as this was initially a 'selling point' of the device and part of the sales blurb ("not only does it have GPS but really good GPS using AGPS".. oh the irony!) - have they themselves ever got it to work?!?!
Now TomTom Navigator v7.910 is out (have just installed it myself, currently waiting for an updated map to download). I have seen it muted that this now works with AGPS on the Diamond or maybe the Pro (ie. someone reports the above bug, yet claims it now works having moved to v7.910). Can anyone else confirm this? More importantly, can anyone confirm AGPS has given the Diamond any GPS-related benefit what-so-ever?? (ie. great if it doesn't stop TomTom working anymore, but does it actually improve it like it should?).
I'll of course try it out myself later today or over the weekend and report back.
Hope this makes sense.. cheers.
just tried TomTom 7.910 (9185) with AGPS enabled, and cant say i noticed much difference.
seems the same now with it enable or dissabled. Cant be sure tho, havent done a long journey yet.
Will update later/tomorrow.
mugglesquop said:
just tried TomTom 7.910 (9185) with AGPS enabled, and cant say i noticed much difference.
seems the same now with it enable or disabled. Cant be sure tho, haven't done a long journey yet.
Will update later/tomorrow.
Click to expand...
Click to collapse
Thanks for taking the time etc.
Interesting, because..
I've just taken a wonder outside and found I'm still getting the signal constantly being lost bug (looking at the screen that shows the sat. bars I have a good signal for a few seconds, then this goes and 'No GPS device' is displayed, then good signal back again and so on).
On this Diamond I'm using ROM 1.93.401.2 the the supplied radio (1.0.25.05), as I suspected this 'improvement' (potentially) noticed by you/others is more likely a result of a ROM/radio update and not a TomTom software update (guessing this AGPS bug isn't the first thing you try after flashing is it?).
Hmm..
nb. I'm using the exact same version/build of TomTom as you
hmmm... yeh, i'm going on a 60+ mile journey later, so will have a play.
Using Dutty's 3.4 ROM and Radio is BS14...
I thought that the whole point of AGPS is so you could help you get a GPS fix when indoors. Which I always thought was an unusual selling point when the entire purpose of GPS software is to help you find your way in the outdoors. Perhaps it could be more useful for those new tagging services that are popping up.
Anyhow I've been running a fairly recent version of iGo8 using Dutty's Rom 3.3 and 3.4 (both with that new radio).
With AGPS turned off, GPS signal is quickly attained and holds strong outdoors. Nothing indoors, naturally.
With AGPS turned on (via Duttys "AGPS Settings" utility), GPS signal is as quickly attained and flickers fully on then fully off, repeating constantly. When indoors, nothing at all.
So, with iGo8, AGPS seems to be a non-runner.
By the way, I once read that AGPS has to be configured to your particular mobile provider. Perhaps that's the issue?
Same here, with a-gps enabled signal drops constantly
after my journey yesterday, had the same problems as above.
tried with TomTom 7 and iGo8
I've never had any problems with GPS apart from slow getting a moving fix when the unit is physically very hot.
The main benefit of AGPS for me is that you can get your location on Google Maps within 1500m or so without enabling GPS.
It also proves A-GPS works.
ben cole said:
I've never had any problems with GPS apart from slow getting a moving fix when the unit is physically very hot.
The main benefit of AGPS for me is that you can get your location on Google Maps within 1500m or so without enabling GPS.
It also proves A-GPS works.
Click to expand...
Click to collapse
Hmm, I think this is thanks to googles effort, not AGPS... Google uses Google Gears API which can position you by using basestations and SSIDs.
AGPS is correcting/updating the GPS data with actual almanac data sent from you mobile provider...
Pitchb3nd said:
Same here, with a-gps enabled signal drops constantly
Click to expand...
Click to collapse
Same for me, anyone being able to use TomTom and AGPS without losing signal periodically?
ben cole said:
I've never had any problems with GPS apart from slow getting a moving fix when the unit is physically very hot.
The main benefit of AGPS for me is that you can get your location on Google Maps within 1500m or so without enabling GPS.
It also proves A-GPS works.
Click to expand...
Click to collapse
Yeah Google Maps does this on its own without having AGPS enabled on the Diamond. I believe AGPS is supposed to be more accurate than 1000m - 1500m though.
Oh and I believe the way that Google Maps gets its position depends on your mobile provider. I used to get the message "your location is not available" constantly on my network but one day (simultaneously as the iPhone was released in my country), the location was available. So I believe that the network flicked a switch for this technology to work.
AGps and TomTom
Hi,
agps have need to run to:
1) Carrier to inform MobilePhone here is (Is a Base Station Issue)
2) Public information about position
On mobilephone if is enable i think is need to have different information, and tomtom have old pattern to process agps information.
With googlemaps have new process and can use.
With my diamond agps run (googlemaps)
Cityhunter71
Please, don't mix the Google technology and A-GPS. They have nothing in common.
Google maintains their own privately held database of GSM-cellids which GMM can query to determine your position based on the current cellid.
A-GPS is a technology where the GSM-basestation itself receives GPS-satellitedata and relays it to the device. With this additional data, the GPS-receiver in the device is supposed to achieve a faster fix.
Have fun!
a-gps works with 7.450
i remember once that it was taking forever for the satelites to be found yet is was updating my postion on the map constantly via a-gps (which im sure was enabled by default in stock rom as ive never changed it)
a-gps is useful inside because you usually have your phone with you and to find a route, you need gps
Apologies for my erroneous post.
I realised my error today when I installed Google Maps on an ageing Blackberry I had unlocked to play with.
Started it up and lo and behold there was my location....thought I'd better head back here to suffer my shame ...LOL
Thanks for the input guys.
So - in summary:
Even with later ROMS / radios / software applications, there is still yet to be seen any benefit from the Diamond (theoretically) having an A-GPS capability.
RUBBISH!!
I personally subscribe to the theory that there is a missing link between the A-GPS driver type software and an info feed from the likes of the network operator, ie. it's all very well it picking up info on the network but without a back-end database to translate this it's useless.
As far as purpose goes.. I personally think A-GPS sounds on paper to be a great idea. Not a replacement for GPS, nor to be used exclusively indoors, but a good aid/starting point. For example, if I'm sitting in an unfamiliar office in London and wanted to use TomTom to navigate me a route to where I want to get to, A-GPS could provide TomTom with a rough starting point. Similarly, I often find myself launch a nav program (when I'm lost!) and standing there for up to 5 mins waiting for a fix.. at least this would give me an approximation from which I could probably work out myself where I was from looking around me. In my mind when you first fire up TomTom on the Diamond A-GPS should simply put you in the right postcode and start doing its stuff while the GPS seeks out its signal, and not still show me as being either at Home or its last known destination. But in any event - it seems not to work!! Bugger!!
I thought that aGPS was also to help hold a GPS signal when in tunnels, canyons, heavy forest cover (ie.Redwoods in this area, many tower to well over 300 feet!) or any situation where the signal from the satellites may be impaired, or even blocked completely.
Im running Duttys 3.5 and with AGPS on I will get a signal for 10 seconds, then it goes for a second, then back for 10. then gone. Turned AGPS off and all is well.
I can confirm that AGPS does work, some parts here in Finland it works and someplaces it does that on off thingy. once when I was just playing with my tomtom it got signal where it would never get it without it. but mostly here it doesnt work properly so i disable it.
But in Helsinki (larger city) it works properly and helps getting signal fast beneath tall buildings.
But yeah it doesnt work in my hometown so its kinda rubbish here.
Maybe it has something to do with how new are nearby cell towers or something. dunno
In Trondheim, Norway it worked with Telenor and gave me a signal indoors, but when I use it together with TomTom the signal gets lost periodicly, really really annoying since "everything" is already there. Probably just something with the co-operation with the regular GPS or something?
I think i got it to run.
I use tt7.910 on diamond with htc 1.93 dutch rom
My mobile provider is mobistar.
I can get a lock inside, tough it's slow(ie not as fast as outside).
When I fire up tt7 the almanac data is showing in the satelite screen.
reg settings are:
Code:
GPRSConnection: Orange World
GpsMode: 4
Network: Orange World
ServerIP: 194.51.71.138
ServerPort: 7275
ServerUrl: agps.orange.fr

Diamond + TomTom = semi-functional GPS (not a lag problem)

I have been using TomTom7 on my diamond for almost a year. First several months it was working fine, just some lags or freezes on roundabouts, which was not a big issue.
Then it started doing this strange behaviour at some occasions: I start TomTom, it finds satellites fairly quickly, I start driving, all fine. Then after some distance it loses coordinates (you can see the blue arrow, but everything behind it is grey and it is not following the route). Sometimes it fixes itself for a short time, then does it again. Sometimes this is all, whatever you do (reroute, restart tomtom, restart phone) it won't come back. Some days none of this happens.
Nothing in configuration had changed, I've been using the same radio and rom for almost a year.
I was really annoyed by this, could not simply rely on tomtom. Now I updated the ROM, and yesterday this happened again
If this was discussed before, please point me in the right direction, most of the threads I found by search were about lags or configuration.
It might be the Quick GPS Programs, I recall having a simular problem where the GPS would work for about 5 minutes then turn off, only turning the phone off then on then running up tomtom again would get another fix, only for it to run for a further 5 mins or so.
I think I disabled the quick GPS in the registry using PHM registry editor or something simular.
It might be worth considering updating the ROM. I'm running BsB's which seems much better than the stock offerings.
I've also had this problem with the latest rom from HTC (regular rom) with the radio 1.09.XX
I've updated to radio 1.15 and the problem is gone.
Thanks for you replies.
I've now updated the radio to one of the latest (1.09.25.23), the ROM was already recent (2.07 Gen.Y). Will test it during the week.
The solution based around disabling of Quick GPS - wouldn' it make the start up time longer ?
gonx_me said:
I've updated to radio 1.15 ..
Click to expand...
Click to collapse
I have tried to install this radio, but got "Invalid Device Id" message, 1.09 installed with no problems. The phone is security unlocked, could not understand what was the issue and just moved on .. :-/
Could be error in timezone
Hi all,
I had a similar problem and it appears to be the timezone, by reasons unknown my Diamond was set to a timezone of Stockholm, now that looks ok, but it is not a normal timezone.
I changed it to Stockholm, Berlin, ... the standard timezone and once again I got a fix fast and easy.
The thing that you get a gray screen is that you our somewere in the middle of the earth according to the GPS, you notice this if you could see the coordinates and altitude.
I have iGo in my Diamond, but the problem was the same when using Google maps so it wasn't a problem with the program.
I have also changed my iGo to have a manually selected time zone, because I'm not sure if it might be iGo that made the change for me.
But now all my GPS works splendid, and I have a fix within 15 seconds.
i do have similar problems.. but it only happens when i'm in the dense core of downtown toronto where all the tall buildings are..
I think it's because the tall buildings are blocking the signal somewhat that is why your GPS kept on running out or coordinates and relocating itself again
bigbro168 said:
I think it's because the tall buildings are blocking the signal somewhat that is why your GPS kept on running out or coordinates and relocating itself again
Click to expand...
Click to collapse
I am in rural Scotland actually, the only high buildings here are castles which are miles away .. so this must be something different.
Neither it seems to be dependent on the sky nor battery level ...
p.s. testing new radio, so far so good ..
Just some feedback from testing: the original problem seems to be solved, but now I've got something much worse - sometimes TomTom freezes several second after the launch, and nothing can be done apart from restarting to bring it back. Don't know if this is a radio's or ROM's issue as I have changed both. Reinstalling TomTom from .cab did not help.
Anyone had similar experience ?
Just some feedback from testing: the original problem seems to be solved, but now I've got something much worse - sometimes TomTom freezes several second after the launch, and nothing can be done apart from restarting to bring it back. Don't know if this is a radio's or ROM's issue as I have changed both. Reinstalling TomTom from .cab did not help.
Anyone had similar experience ?
Hard reset maybe will help
Yes it may, but 3 days before holiday I do not want to be installing everything from scratch. I could try another ROM too if not this.
Tried - atifix, starting with bluetootsh on, wanted to reconfigure GPS setting in TomTom, but can't get there yet ... must be either BT or GPS connectivity
Yes it may, but 3 days before holiday I do not want to be installing everything from scratch. I could try another ROM too if not this.
Tried - atifix, starting with bluetootsh on, wanted to reconfigure GPS setting in TomTom, but can't get there yet ... must be either BT or GPS connectivity
Updated radio to the latest 1.15.25.14 with 1.15.25.35 rilphone, made no difference at all ..
I think I found it - G-Profile service was the cause of the problem. Once I stopped it, TomTom has got 100% starting rate. It's a pity, was a nice small app to have.

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