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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).
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.
Hi,
Like most people here, I've experience TomTom's lag. From my stock Touch Pro, I notice a 3-4 second lag whilst driving around 60km/h. I read the previously mentioned GPS tweaks for the Touch Pro and initially applied the tweaks, but only dividing the original values by 4 (eg. PollInterval went from 1024 to 256, etc.). This reduced the lag to 1-2 seconds whilst driving. After applying the tweaks by dividing by 8 (eg. PollInterval to 128) resulted in the same 1-2 second lag in TomTom whilst driving. Clearly, the GPS is no longer the bottleneck now.
Next, I planned a route and watched the Demo at 200% speed to see how fast I can expect TomTom to appear. The display refreshed every 1-2 seconds! Coincidence?! I was in Harvey Norman (huge electronics retailer with lots of demo units) and watched a route Demo on a TomTom standalone device at 200% speed. The display refreshed 2-3 times per second.
Hence, is it possible to increase TomTom Navigator's refresh rate on the Touch Pro? For example, by applying some kind of graphics configuration changes or something? Perhaps tweaking the graphics driver somehow? Or is it that the standalone TomTom devices have much better hardware and the performance we are seeing on the Touch Pro is about as good as we can expect it?
Any help appreciated!
Cheers,
Ledg3.
Any ideas? Anyone?
Just wondering. have you tried one of the newer roms that have the gps driver cooked in? i am using provens 1.06 and it seems to not lag as much (only tried it for about 15 minutes earlier today)
Hi ajmoncrief,
Thank you for your reply.
I haven't tried any ROMs at this stage as I received my Touch Pro just recently.
Is it possible to load the new GPS driver without replacing the ROM?
Also, does your new GPS driver lag less than 1-2 seconds whilst driving?
At the moment, I would be surprised as TomTom only updates my display every 1-2 seconds, even just by running a demo (and not relying on the GPS for input).
I'm not sure about a driver cab...I would assume that theres one floating around. Check out Da G's rom thread and qsqa's PROven's thread. I tested tomtom again this morning and I'm getting much better results now. I'm not exactly sure how fast/slow the screen refreshes, but it does do so in a timely manner. Im confident that it does do better than once every 1-2 seconds. (I only live 3-6 miles from everywhere I need to go and I dont have any out of town trips within the next couple of days) Maybe someone else can chip in on their thoughts here.
TomTom 7.9 slow refresh
I am having the same problem on the AMEO (X7500) and TomTom 7.9 - screen refresh is quite slow, every 2 seconds. Version 6 was running realy smoothly. Any ideas? Soft reset, restart, speed camera warning on-off does not change the refresh rate.....
Luk
Your position on the map is always going to be a second or two behind your actual position. There is no bottleneck or slowdown even if you set the GPS at 4800 baud. The GPS only sends out a position update once a second. This will also make the screen a little jerky. Most programs smooth out the jerkiness by assuming there will not be a huge change in speed and smoothly move you to where they estimate the next GPS position will be.
Some programs also cheat and estimate your actual position on the map, so it is very close to your actual position. You can tell, because in the city you will be shown going through the intersection when you make a turn. It will then jump backwards and then show you making the turn. One of the GPS programs I use to have did this, but I do not remember which one.
TT7 on my Kaiser (ATT Tilt) moves smoothly along, and is near dead on for location. There's no refresh problems.
TT7 on my Raphael (ATT Fuze) repaints the screen every 1 - 4 seconds, and my position is off by at least 100 feet. Even with tweaks, it functions pitifully compared to the Kaiser.
is everyone here using the VGA version of TT7 or the QVGA version meant for the Tilt?
there are different versions (vga and qvga)??????????
Have you tried Franson GPS gate? DOwnload the trial and create a virtual com port 2 and map the Com4 GPS multiplexer to virtual com 2 and then have tom tom look to com 2 for the GPS. I bet the lag goes away. I was told that the commercial GPS softwares look for standardized GPS info in which the HTC phones' GPS use a variation which causes lag problems.
tomtom 7.910 screen redraw problem
Yes there are different versions of 7.910.9185 blue, black qvga and there is VGA version. I have the problem with the screen redraw, not the general speed, which is better than 7450 for example for route calculation. Screen redraw on 7.450 version was running smoothly, so it is not the question of the GPS, but the maps form 7.910 are not compatible with the 7.450. Screen redraw problem is visible even in demo mode, at 200% of speed instead of the smooth ride you have a "slideshow" in 7.910 version
lukasz said:
Yes there are different versions of 7.910.9185 blue, black qvga and there is VGA version. I have the problem with the screen redraw, not the general speed, which is better than 7450 for example for route calculation. Screen redraw on 7.450 version was running smoothly, so it is not the question of the GPS, but the maps form 7.910 are not compatible with the 7.450. Screen redraw problem is visible even in demo mode, at 200% of speed instead of the smooth ride you have a "slideshow" in 7.910 version
Click to expand...
Click to collapse
I was using 7.450 but i read that version was for qvga devices so i upgraded to 7.451 i know it seems stupid for a .001 update but that is vga not sure about 7.910 as i read that it was vga to and for the diamond if im not mistaken but you can try 7.451 if you want. look around for it also if the map works for 7.450 i don't think it will work for 7.451 or at least it did not work for me. so look for the files if you can't find them drop me a pm and i can tell you where to "BUY" them also i tried the gps reg tweaks and it did not seem to make it any better but i did not have a problem with the gps in the first place. hope this info helps
I've also experienced lag like what you guys are talking about... what I did was I disable all POI in preference so that nothing will show up and it seemed to be a lot faster... still has that choppyness... but much better than before... i hope this helps...
Anyone has this 7.450 Tom Tom VGA Cab? Thnx in advance
bruceo said:
Have you tried Franson GPS gate? DOwnload the trial and create a virtual com port 2 and map the Com4 GPS multiplexer to virtual com 2 and then have tom tom look to com 2 for the GPS. I bet the lag goes away. I was told that the commercial GPS softwares look for standardized GPS info in which the HTC phones' GPS use a variation which causes lag problems.
Click to expand...
Click to collapse
How sure are you about this solution? Have u tried?
If it works, it means TomTom is at fault here, and not HTC
But it also lags in Google maps....how would you explain that?
I am very curious if anyone has really tried this and can confirm the lag going away (and most important; make pedestrian mode usable)
Moaske said:
How sure are you about this solution? Have u tried?
If it works, it means TomTom is at fault here, and not HTC
But it also lags in Google maps....how would you explain that?
I am very curious if anyone has really tried this and can confirm the lag going away (and most important; make pedestrian mode usable)
Click to expand...
Click to collapse
Sadly the HTC really is fault here, not TomTom. I have a external SirfIII GPS module, and while TOmTOm still appears to redraw 2-3times a second, the lag goes away. And TomTom is very very accurate then. The Franson GPS gate doesnt solve anything with the lag. It might make GPS lokc quicker, but tbh it didnt help me much (using QuickGPS data). I get fast locks with both the built-in and the external GPS. The problem is between the data output and the chipset. Drivers should / or could solve it.
Problem solved!
Hello,
Yes I have been experimenting A LOT with TomTom. I have found out that what really slowes down the map redraw is the RADARS if they are inserted into the map directory as a POI. Without radars it runs very nice both in version 7.45 and 7.9.
TT redraws screen very slow even if you switch off the warning for getting close to the radars as POI categories, I think that it is much too many of them for the whole Europe and POI mechanism is not the proper one for radars. Changing the radars into the official "with serial" solved the situation. I hope it helps to the others!
Tom Tom Lag
Aside from the initial startup (I wait about 30 sec) everything seems to work well. Refreshes good, etc.
I use the following settings:
Ver: TTN_7.450.9028
Map Pack: USA_and_Canada_v.675.1409
Other NMEA Device
Baud 19200
COM 4
HTC Radio: Raphael Radio 1.08.25.20M1
I have the AGPS UN-Checked
pabent said:
Aside from the initial startup (I wait about 30 sec) everything seems to work well. Refreshes good, etc.
I use the following settings:
Ver: TTN_7.450.9028
Map Pack: USA_and_Canada_v.675.1409
Other NMEA Device
Baud 19200
COM 4
HTC Radio: Raphael Radio 1.08.25.20M1
I have the AGPS UN-Checked
Click to expand...
Click to collapse
Thanks for the tip, I just updated to this radio from 1.02.25.28 and my GPS seems to be working much much better!
Hi, I'm a new member, but more of a lurker. I originally planned to buy a Hermes but after reading about all the hardware problems I decided to go for the Kaiser. My question is, are there any major problems with the Kaiser? I know of the ImageON driver issues, are there any other hardware or software issues?
I don't think there's any fundamental problem with the hardware. The 3 Mp camera is not great, but what do you expect of a camera on a phone?
There a lot of ROMs, official and cooked, you can choose one that suits you.
Mine works pretty well with the original WM 6.0 ROM or the HTC official 3.02 one. With more recent ROMs or radio firmware I have problems with GPS fix times and access to WiFi routers.
Thanks for the fast reply!
I'm sorry to ask this in the Kaiser forum, but would going for the Hermes be worse than the Kaiser? They're essentially the same, except that I've read of a lot of h/w problems on the Hermes.
Hermes is awful next to the Kaiser. I still have mine here, had to use it while my Kaiser was being repaired a few months ago and it was just a PITA. Slow as hell, deeply embossed and lower quality screen,... But I can't talk of hardware problems with it.
If you get a 2nd hand Kaiser, the important points you need to check is that 3G is working (early units had faulty 3G hardware that would fail after some time, but most should have been warranty-fixed by now), and that the USB port is not broken as some tend to break it by shoving the stylus in it instead of the storage place.
I guess I know which phone I'm going for thanks!
One more question! sorry lol, I know the Kaiser has A-GPS, do you have to pay for it? If I put TomTom on my Kaiser will I have to pay for using the assisted GPS?
Also, is CorePlayer working fine on the Kaiser, mainly with xvid/avi files?
A-GPS aka QuickGPS will want to download a small file off the internet at least once a week, be it through Wifi, Activesync or whatever else is available to get satellite data and allow for shorter times to first fix, that's all. And if you don't want to use it you're not forced to, it will just take a little longer to get a fix.
So nothing to pay, except if you decide to download that little file over GPRS where your data fees would apply.
Coreplayer works fine, I personally reencode my videos in 320x240 divx for viewing with it. Never really tried anything else for video.
Alright, thanks amigo!
kilrah said:
A-GPS aka QuickGPS will want to download a small file off the internet at least once a week, be it through Wifi, Activesync or whatever else is available to get satellite data and allow for shorter times to first fix, that's all. And if you don't want to use it you're not forced to, it will just take a little longer to get a fix.
Click to expand...
Click to collapse
AGPS is not the same thing as QuickGPS (though it took me ages to realise).
Quick GPS is what you describe and is generally considered to be worthwhile.
AGPS is similar, but it downloads more specific information which (I believe) is based on which phone masts you're near - and therefore should be even better for getting a good fix. The problems are A - It will cost money if you have to pay for your internet connection and B - apparently (though I've never used it) it will sometimes update the data while you're actually using GPS and as a result lose your fix while you're driving somewhere. A lot of people don't like AGPS at all.
dancj said:
AGPS is not the same thing as QuickGPS (though it took me ages to realise).
Click to expand...
Click to collapse
Well.. it is in some way. The problem is that AGPS can be implemented in different ways up to different extents...
The first thing is what is mentioned above - downloading ephemeris data from the net instead of getting it directly from the satellites, which would require continuous link with each satellite for about 1 minute. First fix time is thus shortened as the data for 1 week is stored locally. This is what QuickGPS and SeaSGEE do.
The usual "Disable AGPS" in KaiserTweak / Advanced Config is a second thing. It switches to a different position calculation algorithm that is supposed to work better in low signal conditions, by extrapolating the movement at the time signal is lost and trying to guesstimate how it could evolve everytime some signal is received. But many people don't like that as it's only giving decent results in certain conditions like driving, and when walking, geocaching etc it does nothing more than giving wrong info.
What you mention by using cell towers and an internet database is also something that can be done under the AGPS naming, but AFAIK it's not implemented on the Kaiser.
It sounds like you know more about it than I do so I'll bow to your greater knowledge
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 ..
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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
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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.