Database Develop

Quick GPS question...

I have just updated my ROM to "Dutty's WM6.1 Hybrid v2 5.2.19716/5.2.19700" and at the same time installed TomTom.
It can take quite a while to pick up a lock the first time the software is booted but if I close and open TomTom without rebooting the phone the second time is much quicker (almost instant). I have just tried rebooting the phone and it goes through the same slow process the first time tomtom is booted and then quick following that. Is this normal behaviour for GPS on the device (not holding GPS info when the phone is rebooted) or is it an issue with the ROM or Radio. If its the radio is their anyone in the UK who can recommend the best radio for battery life and GPS.
Cheers,
Michael

cyberkid2002 said:
I have just updated my ROM to "Dutty's WM6.1 Hybrid v2 5.2.19716/5.2.19700" and at the same time installed TomTom.
It can take quite a while to pick up a lock the first time the software is booted but if I close and open TomTom without rebooting the phone the second time is much quicker (almost instant). I have just tried rebooting the phone and it goes through the same slow process the first time tomtom is booted and then quick following that. Is this normal behaviour for GPS on the device (not holding GPS info when the phone is rebooted) or is it an issue with the ROM or Radio. If its the radio is their anyone in the UK who can recommend the best radio for battery life and GPS.
Cheers,
Michael
Click to expand...
Click to collapse
This is pretty normal for GPS especially on these devices. It takes a while to get the first fix after a reset, but subsequent ones are quicker.
You may be able to speed up this process by using the QuickGPS tool to download cache data of satellite locations.
Also, try and use GPSTest to get the lock first. Many people use the GPSTest application and keep it running in the background as it tends to keep a good lock on things.

Adjust the baud rate with GPStest.

cheers for the responses... i will try the GPSTest thing...
KDKobes: what change does adjusting the baud rate make? quicker to lock?

I'm running the new, stock 6.1 Rom, and the only criticisim I have of it is the really slow initial GPS lock. The first time I use it after a soft reset or reboot, it can take anything in the region of 10-15 minutes, which I really don't think is right - I'm positive the original Rom was better at this. Subsequent fixes are much quicker, but if you find yourself needing the GPS and you happen to have recently rebooted, chance are you'll be well past your destination by the time it picks up, which is not good.
Quick GPS appears to be behaving as it always has - whenever I check it has recent data showing, downloaded through Activesync as normal - but it's almost as if that data's not being used in this Rom.
I should mention I'm seeing this behaviour in both Tom Tom and Live Search... it always does get a lock eventually, so there doesn't appear to be a problem with the GPS itself. Has anyone got any insight into this?

cyberkid2002 said:
cheers for the responses... i will try the GPSTest thing...
KDKobes: what change does adjusting the baud rate make? quicker to lock?
Click to expand...
Click to collapse
The baud rate is used by the internal COM port to interface with the GPS controller. It is the same deal like the speed of a modem...2400....4800...9600, etc.
Honestly with the amount of data that a GPS passes (which is not that much) I don't know if it makes a difference if it is set low. However, I always set mine high because faster is better, right so, might as well.

bengalih said:
The baud rate is used by the internal COM port to interface with the GPS controller. It is the same deal like the speed of a modem...2400....4800...9600, etc.
Honestly with the amount of data that a GPS passes (which is not that much) I don't know if it makes a difference if it is set low. However, I always set mine high because faster is better, right so, might as well.
Click to expand...
Click to collapse
Where would you even set that though? I played with GPS Tool for a while, but it appeared to forget whatever port setting I used next time it ran anyway, so presumably it only affects that session of GPS Tool, not the system as a whole. In TomTom there's no speed setting for the internal GPS either; it should all be handled by WM itself.

Boinng said:
Where would you even set that though? I played with GPS Tool for a while, but it appeared to forget whatever port setting I used next time it ran anyway, so presumably it only affects that session of GPS Tool, not the system as a whole. In TomTom there's no speed setting for the internal GPS either; it should all be handled by WM itself.
Click to expand...
Click to collapse
Yeah, I think that's right... you can set it inside GPSTest.
However, like I stated many people find that GPSTest gets the quickest lock and prefer to either open it first and/or leave it running in the background. I haven't used my GPS that much, but I do find that this works.
It at least allows me to see what is going on with the lock. If I start Google Maps it will either work or not with GPS, but not really show me what's going on. GPSTest will allow me to see if I have a lock or not and then open up my other apps for use.

I just realised, I'm talking about the HTC GPS Tool, while you're talking about GPS Test - which is that, the Chartcross one?

You should try IGO8
cyberkid2002 said:
I have just updated my ROM to "Dutty's WM6.1 Hybrid v2 5.2.19716/5.2.19700" and at the same time installed TomTom.
It can take quite a while to pick up a lock the first time the software is booted but if I close and open TomTom without rebooting the phone the second time is much quicker (almost instant). I have just tried rebooting the phone and it goes through the same slow process the first time tomtom is booted and then quick following that. Is this normal behaviour for GPS on the device (not holding GPS info when the phone is rebooted) or is it an issue with the ROM or Radio. If its the radio is their anyone in the UK who can recommend the best radio for battery life and GPS.
Cheers,
Michael
Click to expand...
Click to collapse
Hello!
I have experienced exactly the same problem as you have with TomTom.
I have both a "Tytn II" and a HTC Advantage (X7500).
When using TomTom on the X7500 the GPS takes time to fix a position, 15-20 min or more is not unusual after a soft reset.
Then when it has fixed the position it is EXTREMLY slow when it comes to calculating the route!
I live in Sweden and I often drive to Germany, and when calculating the route from Sweden to Germany it takes over 3 min to finish!
Then we have the issue with the struggling graphics, (Of course I have been told that TomTom has trouble with VGA displays, and I find that to be very true.) the map is very slow and sometimes it stops completly for a few secounds!
On my Tytn II however the map is not struggling the same way, and it calculates much faster then on the X7500, Why? I dont know!
X7500 is a much faster device so it beats me!
The GPS lock is however almost as slow on the Tytn II as it is on the X7500, no matter if I have used quick GPS to download data or not!
A few weeks ago I stumbled upon a navigation program called IGO8, I decided to try it, and believe me when I say that I will never go back to TomTom again!
First of all the GPS lock is almost instant with IGO8, from a soft reset it finds a lock within maybe 2 min at most! And then it seems that it somehow remembers the position and the next time you start the program it will have a fix in secounds!
Then it calculates much faster, I tryed to calculate the route from Sweden to Germany on my X7500 and it was finishes under 20 secounds! (Compare that to over 3 minutes with TomTom on the same device!)
It supports VGA screens, so the map floats much better on my X7500.
Next thing is that there is more maps for IGO 8 so it covers much more of "mother earth" if you want to navigate in a foreign country!
It also has 3D terrain, and can even show buildings in 3D! (Only works in some places!)
It has a very simple and logical interface that is much easyer to understand then TomTom, and it is skinnable and very customizable!
So if you are serious about having a great navi I would strongly recommend you to try IGO 8! I can promise you will not be dissapointed!
Oh and buy the way, I dont work for IGO either!

More GPS Woes
KDKobes said:
Adjust the baud rate with GPStest.
Click to expand...
Click to collapse
I have problems getting software on my O2 Stellar to recognise the internal gps. I've tried a couple of different programs (TomTom & GPSTuner) and also fiddled around with the com ports in both the software and on the Stellar (using the External gps app in settings) but still no recognition of the internal gps.
I caleed O2 and no one could help, in fact they didn't even know it had internal gps!
I've seen GPSTest mentioned a few times. It's not on my Stellar - where can I get it?
Am I missing something?
Help please!
Thanks
Dave

davespearce said:
I have problems getting software on my O2 Stellar to recognise the internal gps. I've tried a couple of different programs (TomTom & GPSTuner) and also fiddled around with the com ports in both the software and on the Stellar (using the External gps app in settings) but still no recognition of the internal gps.
I caleed O2 and no one could help, in fact they didn't even know it had internal gps!
I've seen GPSTest mentioned a few times. It's not on my Stellar - where can I get it?
Am I missing something?
Help please!
Thanks
Dave
Click to expand...
Click to collapse
Get GPSTest here
You can either manually set it to a COM port or have it autoscan. I believe some ROMs identify it as COM3 and others COM4, so probably best to do an autoscan. It might take a few minutes to find it, and then another few to get a lock. But after that it generally starts up and locks within a minute or two (in my experience).

*Hopeless* GPS after 6.1 Update?

I know this has been touched on before, but I want to know if this is a widespread thing or what - since the official 6.1 update, my GPS has been really poor, particularly on a cold start. In fact, every time I use it feels like a cold start these days, even though Quick GPS is downloading data regularly and always shows 6+ days.
Every GPS app is the same - Tom Tom, GPS Test, Google Maps, Live Search - I can be waiting up to 10, 15, 20 minutes for a fix. The only time it's quicker is if I've used the GPS recently, and even that is a bit of a black art.
I like running the official ROM and I'm happy with the update in every other way, but the GPS problem is driving me up the wall - am I the only one? Is anyone running the proper ROM and not finding their GPS impaired?
The weird thing is, I can watch GPS test picking up two, three, four satellites but it just won't lock...
This is with the WWE 3.28 ROM with the 3.28 SPL loaded (fixing the freezes under Hard SPL v1)... what's going on?

Boinng said:
...snip snippity snip snip...
Click to expand...
Click to collapse
Usually, I've found the GPS lock time is Radio Based. Maybe try a different Radio.

Boinng said:
I know this has been touched on before, but I want to know if this is a widespread thing or what - since the official 6.1 update, my GPS has been really poor, particularly on a cold start. snip...
Click to expand...
Click to collapse
The only thing that is going to get me off the DEATH V3.5 ROM is a newer Rom by this same person.
The GPS is the best that I have ever had...
The phone signal is the best that I have ever had...
The GPS lock is about 30 seconds after TomTom starts...
The battery life is phenomenal - (it takes about 24 hours for the phone meter to register correctly) but I had 79 percent battery life left after using the phone all day yesterday at 11 pm last night (unplugged it at 6 AM).
Obviously - your carrier, your radio and ROM and where you are in the world can affect your signal greatly - but at this point - for me - the DEATH V3.5 ROM and radio rock and will stay on this phone as I LOVE having no phone issues.
HTH
Bill

Ok, maybe I've not been clear here - I'm not wanting to swap ROM stories or compare radios, I'm asking if anyone else is experiencing severe GPS problems with the stock ROM, and stock radio.
Anyone?
This isn't "which ROM/radio is best for GPS", it's "did the HTC ROM break your GPS?"

I have never looked at the official HTC ROM for comparison but I had the same thing after updating to certain ROM (non-official) the only way around it I found (other than replacing the phone) is another radio. Its not a problem with the ROM at all my good man just replace the radio and you should see a quicker lock time
I use radio 1.64.08.21 ang get a lock after approx 10-15 secs

Well If you are going to be snippy about it. Never mind. Forget I tried to help.
Though You may be hard pressed to find someone who is using the Stock ROM, I believe most people are wooed by the magic of Leo26, ConfusedStu, dutty, and the other Chefs out there.

So you wouldn't say that quoting my post back to me as "...snip snippity snip snip..." was being "snippy" in the first place?
I'm not trying to pick a fight here, I'm just interested in whether this is a common problem or not. I know GPS performance varies between radios, but with this new ROM & radio the difference is pretty shocking, and given that HTC are expecting the whole world to have installed it, I was surprised nobody else seemed to have noticed. You're probably right, nobody here kept it for long enough to find out apart from me, but I like my phone to be "stock". I guess this is my reward.
The answer probably is to try another radio, but it's a funny old situation.

Boinng said:
Ok, maybe I've not been clear here - I'm not wanting to swap ROM stories or compare radios, I'm asking if anyone else is experiencing severe GPS problems with the stock ROM, and stock radio.
Anyone?
This isn't "which ROM/radio is best for GPS", it's "did the HTC ROM break your GPS?"
Click to expand...
Click to collapse
I'm using the new (WM6.1) stock ROM from HTC on my Tytn-II and haven't had any issues with GPS lock. I would say less than 30 seconds assumming it has a clear view of a good percentage of the sky. Fix time is the same whether I use TomTom, GPS Tuner, or the HTC-GPS Tool.
Ofcourse if I try and start-up GPS while indoors or in an area where buildings block more than 50% of the sky then the fix time can be much longer.

Boinng said:
I know this has been touched on before, but I want to know if this is a widespread thing or what - since the official 6.1 update, my GPS has been really poor, particularly on a cold start. In fact, every time I use it feels like a cold start these days, even though Quick GPS is downloading data regularly and always shows 6+ days.
Every GPS app is the same - Tom Tom, GPS Test, Google Maps, Live Search - I can be waiting up to 10, 15, 20 minutes for a fix. The only time it's quicker is if I've used the GPS recently, and even that is a bit of a black art.
I like running the official ROM and I'm happy with the update in every other way, but the GPS problem is driving me up the wall - am I the only one? Is anyone running the proper ROM and not finding their GPS impaired?
The weird thing is, I can watch GPS test picking up two, three, four satellites but it just won't lock...
This is with the WWE 3.28 ROM with the 3.28 SPL loaded (fixing the freezes under Hard SPL v1)... what's going on?
Click to expand...
Click to collapse
I had the same problem after loading the 3.28 Hard-SPL. Reverted back to stock SPL and GPS is lightening fast.
Are you using the stock 3.28 SPL or the new 3.28 Hard-SPL?
Did you run Kaiser Tweak? if you did I would Hard Reset and try GPS test.

Got exactly the same problemwith the htc stock 6.1 rom. Nothin to do with hard spl etc as neve used it - phone has always been htc branded.
it appears that although quick gps data is downloaded, it is not used hence taking a long time as it needs to download the almanac data frim the satelites instead of quickgps. Ive emailed htc, but i have NEVER had a reply to any questions ive a ked in the past.

kavi said:
I had the same problem after loading the 3.28 Hard-SPL. Reverted back to stock SPL and GPS is lightening fast.
Are you using the stock 3.28 SPL or the new 3.28 Hard-SPL?
Did you run Kaiser Tweak? if you did I would Hard Reset and try GPS test.
Click to expand...
Click to collapse
I'm on the stock SPL - my phone is Vodafone branded so I was originally using Hard SPL (with which I flashed the original stock HTC Rom) and then flashed the HTC 3.28 SPL after I found I had freezing issues with the 6.1 update. Haven't touched the new Hard 3.28, but from what you say it's obviously not going to help. I did wonder if the mystery fix in the 3.29 SPL might have something to do with the GPS, but if it's working fine for you on 3.28 who knows.

ardsar said:
Got exactly the same problemwith the htc stock 6.1 rom. Nothin to do with hard spl etc as neve used it - phone has always been htc branded.
it appears that although quick gps data is downloaded, it is not used hence taking a long time as it needs to download the almanac data frim the satelites instead of quickgps. Ive emailed htc, but i have NEVER had a reply to any questions ive a ked in the past.
Click to expand...
Click to collapse
That's how it looks to me too - looking at the signal levels in GPS Test etc, it's not obviously a problem with the radio performance itself, which makes me doubt that changing the radio will actually help (while it will no doubt screw something else up).

I was just browsing through an interesting thread here - http://forum.xda-developers.com/showthread.php?t=292178 - on how Quick GPS works (or didn't work for a while) on the Artemis. There's some interesting stuff there about how all this is supposed to work.
I'm really suspecting that Quick GPS is broken in some way in the latest ROM. If it were working, then the phone should always have the almanac data and this should be visible in the settings screens in Tom Tom and other gps progs as satellites it's expecting to be there, but for me - unless I've had a very recent lock - it's always blank. In other words, the data isn't there, regardless of what Quick GPS is saying.
And a good question would be - where should the data be? Quick GPS itself is stored in the \windows folder, but there's no sign of the "packedephemeris.ee" file mentioned in the Artemis thread. Does anyone know where we should be able to find it on the Kaiser?
Another question is what server(s) should Quick GPS be downloading from - in my non-functioning Quick GPS, the settings in the registry are as follows:
HKLM\\SOFTWARE\HTC\QuickGPS\0\0\IP > xtra1.gpsonextra.net
HKLM\\SOFTWARE\HTC\QuickGPS\0\1\IP > xtra2.gpsonextra.net
HKLM\\SOFTWARE\HTC\QuickGPS\1\0\IP > xtra3.gpsonextra.net
HKLM\\SOFTWARE\HTC\QuickGPS\1\1\IP > xtra1.gpsonextra.net
HKLM\\SOFTWARE\HTC\QuickGPS\2\0\IP > xtra2.gpsonextra.net
HKLM\\SOFTWARE\HTC\QuickGPS\2\1\IP > xtra3.gpsonextra.net
The three servers (xtra1, xtra2, etc) are also listed under HKLM\\SOFTWARE\HTC\QuickGPS\SNTP as Server 1, Server 2, Server 3 - does anyone see anything different on there working model?

Im having the same problem,
Running Dutty's 6.1 Dual rom. Once the ROM had installed I noticed that QuickGPS didn't work straight off the bat. I suffered long GPS lock wait times. I found a QuickGPS cab file which fixed QuickGPS but my lock times don't seem to have improved. Via GPSTest I get 3-4 within sight straight away, but they sit on red for ages perhaps a few more satellites with appear but again they'll all sit on red. until about 15 mins passes, then finally a fix.
Im sure my GPS responded quicker than that in previous ROM's. at the moment its not really effecting me and im really not going to go through another ROM change again to test.
Im already on radio 1.64.08.21 which is supposed to be the best out there. tut.
no idea about hard spl and all that business, not really sure what y'going on about.
Would also like to find a fix for this, as i've tried a few different methods of fixing with no luck.

So it's not the radio, which ties in with my hunch that this is more to do with Quick GPS. But my Quick GPS registry settings match those I've found elsewhere, and I've found the data - it's an "xtra.bin" file in the Windows folder, which also matches reports from working installs. And I'm having no problem with the whole downloading process, that's happening in the background (through Activesync) just as it always was.
So is there something in the actual Rom (and presumably the base rom used by Dutty) which isn't picking up that data when utlising GPS?

Well I think I read a few posts on Dutty's Dual ROM thread about QuickGPS not working straight off, but its a long thread to plow through to find out. S its entirely possible there's a good reason.
Hmmm

well I proved to myself im not inherently lazy I did a bit of searching around and found this little gem of a thread
http://forum.xda-developers.com/showthread.php?t=375172
it suggested that QuickGPS has a region setting in the registry
low and behold I checked my
HKLM\Software\HTC\QuickGPS\region
and it was set to US,
I changed this to say UK, I've not tested this but I think this might make a difference. I'll let you know whenI get the chance to play around on the way home from work. I usually try and get a fix on the 15 minute walk to my bus and dont get any fix at all, If all goes fine I'll be watching myself in Igo8 on the way home. Sad.

Hmm, fingers crossed for you, I just checked and mine it's showing "GB" though. So maybe your's should be GB (although that's not working too well for me) or maybe mine's wrong, and should be UK?

well I just popped outside for a quick test and Corblimey guvenor if Im not getting a fix in about 20 seconds.
Which is excellent to say the least since i was sat under a canopy of trees at the time and its grim as normal up't'north.
Id switch yours to UK, I didnt really think to try GB, but If its not working for you right now, I'd suggest trying UK.

I changed it to UK, soft reset, tried Tom Tom, no change. I then checked the registry and it had switched back to GB, so I changed it again, closed and reopened Quick GPS and redownloaded, back to Tom Tom again and.. no change. I don't think it's going to do it for me, maybe we have two different problems here..

gps lag

i have the original rom (1.35.401 ) and radio (0.93.25) and igo 8 installed and i have a big gps lag (5 sec). Is it a problem of igo 8 or rom/radio? If i flash a newer versions it will help? Slould be a cooked one or original is enough?

This GPS lag problem has not yet been resolved by anyone. Let's hope some rom cooker are able to resolve this lag problem. There are apparantly many people sufferring from this

Hi guys,
You probably used ACT and enabled A-GPS.
You should disabled it.

MonteCristoffOn said:
Hi guys,
You probably used ACT and enabled A-GPS.
You should disabled it.
Click to expand...
Click to collapse
Nope, thats not the issue.

A-GPS is disabled.
In my opinion the issue is generated by the interval between 2 consecutive positioning readings. It seems that somehow, the application doesn't receive data's from GPS fast enough and because of that, between 2 consecutive readings, you allready made 20-30 meters - enough to miss a crossroad . For example, because i also have a builtin car GPS, it seems that the IGO is allways ~20-50 meters (depending of speed) behind the builtin car gps
There are 3 options which can generate this issue:
1. IGO himself
2. Windows driver
3. GPS HW
For 1st option - i will try with a bluetooth GPS. Unfortunatelly i don't have one. Maybe somebody can try and let me know if the lag is the same?
Also if somebody can try tomtom (there are no available maps where i live) and let us know if still has that lag
For 2nd options - There is an option in registry called POLL interval which is by default 1000. I will try to set it to 300 to see if there is any difference. If is not maybe the dll has something hardcoded about polling interval
For 3rd option maybe with another Radio version the problem can be solved
Please let me know if somebody allready tried some of the options or have another ideeas

Hi there, I have GPS in my Parrot hands-free and it has the same lag as the bulit in GPS.
Seems strange that the Parrot has 2 times stronger signal (and about 2 sattelistes more) than Diamond And it even has not SIRF III chip!
So it is not 1)

Using TTN 7.45 and no lag

tehac said:
Hi there, I have GPS in my Parrot hands-free and it has the same lag as the bulit in GPS.
Seems strange that the Parrot has 2 times stronger signal (and about 2 sattelistes more) than Diamond And it even has not SIRF III chip!
So it is not 1)
Click to expand...
Click to collapse
it's not 3) then - if you have the same lag can be related to IGO himself. So it remains 1) and 2)

possible solution?!?
I have / had the same Problem.
It could be possible, that several programs try to use the GPS-chip at the same time. In that case, it could be that windows switches the availability between these apps. At my Diamond this strange behaviour starts after taking some fotos. So infer from it, that the option of "GPS-Photo" could be the villain.
I switched it off with "advanced config" before one hour. And till now everything is ok. I hope it will last a while.

but on mine the GPS photo is allready disabled and it was never enabled

AGPS
Yes, i think i was wrong. Today in the morning i had the same problem, again. So i tried something else.
Disable the "Assisted GPS" seems to work. Since then i had no more problems today. Lets hold the thumbs!

i've tried another ROM and RADIO - the same issue

I can only say that you shouldn't expect no lags in GPS software. I was using a lot of standalone GPS devices like TomTom Go/One etc. and even they lag a bit even though they use SirfStar III chipset. You just have to get used to it. Of course, new ROMs may decrease the problem a bit, but don't expect it to disappear completely.

I used mine with an external gps receiver (Sirf III), via bluetooth, and no noticable lag was detetcted during more than 800km (from Bavaria to Paris)...
So, there is something wrong...
I just don't know what....
My next test, will be a clean install of the rom, and drive imediatly after. I wonder if any of the tweaks we apply have any direct or indirect interference with GPS ...
HastaSSSS

I am just saying what I can observe with other devices. I've got Go920 and my friend Go520 and we can both see a noticeable lag, the same with older tomtoms we got in our company. Of course it's much less noticeable than the one in TyTN II or Diamond, when I can clearly see that I've already passed the junction 200m ago and I'm still approaching it in my GPS soft.

I called HTC support Australia and informed them off its fault with GPS lag and its accuracy, I informed them that over 50% of users are having this issue on the XDA forum, they told me that no fault has been logged and there isn't an issue, It may be time to call up the tech support and make some noise to get this issue resolved. its a pain in the arse and it shouldn't be happening.

Maybe we should have a poll to get some hard stats on just how many people are experiencing this problem and add momentum to finding solution.

i just made a 1800 km trip and now i can say that in the city the lag of the GPS make it unusable
Maybe we can try to install igo2006 to see if there is any difference

I haven't had any lag problems at all, the only problem is the time it takes to initially get the satellite data.

Lag time iGO 8
I also experienced the lag time issue. However, it is really lag time as iGO8 seems consistently 20 m behind. Try to stop sufficiently long in an intersection and monitor what happens - my GPS wil slowly count down from about 25 m to about 20 m. In other words its consistently 20 m behind - the lag time is only equvivalent to some 5 m. One thing which seems to improve things is to alter the seting "re-establish lock-to-position" (translation from the Danish menu) and put it at 5 sec. Surely I have not experienced any such issue with my Blaupunkt and Mio A701 systems. And yes it makes it absolutely hopeless in bigger cities if you don't know the road.

GPS running but without any effect...

Since I bought my Diamond, last week, I haven't been able to get a single fix.
Even worse, although my GPS is detected as running by every GPS soft, there is only one sattelit bar active at a time.
(about 10 satelits are being sensed, but only one is actually sending datas to my device, every time...)
I've never expericenced such problems with my preivous triny. There were always at least 3 or more bars moving up and down at a time, and at the end I could get some fix.
- either it is a hardware problem and I got a crap GPS chipset...
- or it is a setting problem with my ROM.
By the way, in the External GPS settings screen, I have strange infos:
Port GPS: com4 which is normal, GPS Material Port: None!!
baud rate: 4800 (which I think is very low, but I heard everybody has got the same)
What's wrong with my device?

Seems to be lots of posts on this issue...a nice simple one is to flash a new radio.....if that doesn't work do a Hard Reset (to be sure!) and restore to minimum and see if it runs.....then move on from there....

I've been having a similar problem with my Raphael (it takes a million, billion years to get a lock and even then it's only 3 satellites).
I deleted the 2 GPSlog files in the Windows folder, did a soft reset, ran QuickGPS and then tried Google Maps again. I got a lock in about 10 seconds with 8 satellites.
Now, I've only been able to test it once and will have a go again tomorrow but it's easier than a radio flash or hard reset!
Harry

Thanks for the replies!
- I've been doing many hard resets these days, due to some problems with Asian Fonts. So, this is not the problem.
I may go for the radio flashing as u suggest.
By the way, I've noticed you're using the x.x.8 radio, are you satisfied with it? I read many are going back to x.x.5 cause they it has poor performances.
-The GPS log files sounds good. I've never tried this but I may give it a try.
I tried to reset the GPS logs from within the soft I was using, but it did not improve anything, looks like the GPS only receives the list of satelits, but no localisation datas at all...

riri22 said:
Thanks for the replies!
- I've been doing many hard resets these days, due to some problems with Asian Fonts. So, this is not the problem.
I may go for the radio flashing as u suggest.
By the way, I've noticed you're using the x.x.8 radio, are you satisfied with it? I read many are going back to x.x.5 cause they it has poor performances.
-The GPS log files sounds good. I've never tried this but I may give it a try.
I tried to reset the GPS logs from within the soft I was using, but it did not improve anything, looks like the GPS only receives the list of satelits, but no localisation datas at all...
Click to expand...
Click to collapse
....I'm about to revert back to the 07 radio (from 08) as it did not give me the same sat pickup as 07....you can also try the HTC GPS Tool and run a COLD start...I understand this wipes the data and restarts as advised previously...
http://forum.xda-developers.com/showthread.php?t=416334
...lot of other goodies here

The Doctor said:
I've been having a similar problem with my Raphael (it takes a million, billion years to get a lock and even then it's only 3 satellites).
I deleted the 2 GPSlog files in the Windows folder, did a soft reset, ran QuickGPS and then tried Google Maps again. I got a lock in about 10 seconds with 8 satellites.
Now, I've only been able to test it once and will have a go again tomorrow but it's easier than a radio flash or hard reset!
Harry
Click to expand...
Click to collapse
I have a similar problem from time to time.A lot of data received from 10-12 satellites but a fix only after a long long time. In comparison with the Garmin Gps I have the sensitivity of the Diamond GPS receiver is good, but the algoritm is not. Diamond radio is .05
I have the same problem if i delete the log file and update with quick GPS.
It seems that the algorithm in the radio sometimes is not able to converge easily to a fix.

My tomtom was working just Excellent on my diamond, than i did a hard reset and no gps, 1 bar for over 1 hour, so reflashed the same rom again 1.93.405 still same problem, so flashed 1.93.401 and bingo it works again. after a nother hard reset 1.93 401 rom gps wont work angin, this time the 1.93 405 rom fixed it. ( all WWE roms)
no idea why this happend.. when the diamond gps works its excellent (better than most tomtom units) but thants only when it works.
as the gps feature is very importent to me, i now have a back up bluetooth gps incase inbuilt gps fails.
and with out quick gps i find its aloms impossible to get a lock.
I only hope HTC fic this issue if not this will have been my first and last HTC product.
Any tips welcomed

Hi mates,
First of all thanks for the link and the goodies, in fact I had already found some datas since many Diamond users seem to have similiar problems with their device.
I agree this is obviously a mistake of HTC to have put a defectuous part in their phone.
1) My problem even went worse yesterday after I flashed the last HK WWE ROM: my GPS wasn't even sensed by the softs!
No NMEA datas blabla...
2)
many hard reset and reflash couldn't fix the problem. I was about to give up when i found info about that HTC GPS TOOL I had never heard about.
After using it for quite a while, at least my GPS was finally sensed and 'some' datas received, though it wasn't enough to get a proper satelit bar, not to mention a fix...
3)
So now I'm back to the same point: no fix or proper reception available, although I'm already quite happy that my GPS is detected again!
3)
I got back to the same stock radio, x.x.5 but no matter which one I use, I can't see when I'm going to have a a fix with that whimsical GPS!

SOLVED!!!
I finally found a solution to wake up my sleeping (beauty) GPS.
The most helpful infos were in that post below, but I did pick other datas here and there.
http://forum.xda-developers.com/showpost.php?p=2563369&postcount=6
The funniest thing is that this problem looks like a hardware one, but in fact it's all software related. A problem of configuration, due to the A-GPS function probably.
From what I understand, if you use A-GPS (I mean if you really have access to this special service through your phone operator) everything is fine.
If you don't, then you may get into big troubles like I and many others did...
1) make sure A-GPS function is desactivated (nothing to do with the Quick GPS function)
2)
... just follow the instructions provided by the Oijkn on the link above.
3)
delete as well the file(s) GPSlogs.txt in the windows directory
4)
soft reset
5)
enjoy a very efficient GPS

Hello ! (I am french)
I have a HTC Diamond P3700 and Tomtom Navigator 7.910 + western Europe 1GB map.
This map map is not recognized ? How repair ? Thanks

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.