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very bad gps reception

hello,
I have my tp for a while now, but didn't use much gps. now i tried google maps and tt7, but it takes up to 10-15 min. to get a fix. How is this possible?? I updated the latest quickgps, but nothing....??
thnx!

HardSPL your phone
Try another Radio

*huh*?
fireblade63 said:
Try another Radio
Click to expand...
Click to collapse
How is another radio supposed to fix this problem?! Afaik, the GPS-Receiption has nothing to do with the GSM-Radio nor its firmware....it isnt even controllable by software.

Radios will make a difference with your GSM/DATA strength, GPS reception, Camera smoothness, WiFi, and battery life.
This is what I've been living with for the past year with my Kaiser (and alot more members over there too).
Trying out radios along with ROMs to see which is the best mix.
Radios are not only firmware for the radio chip, it is for all what I have mentioned above, even sound in some cases would disappear.
Just don't forget to HardSPL your device.
You could also try GPSGate to aid GPS fast fix.
Monarch73 said:
How is another radio supposed to fix this problem?! Afaik, the GPS-Receiption has nothing to do with the GSM-Radio nor its firmware....it isnt even controllable by software.
Click to expand...
Click to collapse

Work around
Hey,
I was reading the tread here: http://forum.xda-developers.com/showthread.php?t=420933
I have the same problem, tt7 takes about 3 mins to get a fix.
Right after i use googlemaps (which gets fix in 10 secs) i start tt7, then it gets a fix in 20 secs.
Now i've installed GPSGate, created a new virtual com port with it and set tt7 to that port. Now I have no issues with tt7

Yeah, GPSGate work like a charm
zSpinner said:
Hey,
I was reading the tread here: http://forum.xda-developers.com/showthread.php?t=420933
I have the same problem, tt7 takes about 3 mins to get a fix.
Right after i use googlemaps (which gets fix in 10 secs) i start tt7, then it gets a fix in 20 secs.
Now i've installed GPSGate, created a new virtual com port with it and set tt7 to that port. Now I have no issues with tt7
Click to expand...
Click to collapse

Whats GPSGate? Why do you need to run it with tt7? Not sure what its used for. DOes it give faster connection?

oh great, so in other words. to get a function working reliably that should be doing it out of the box on these pricey phones, we have to spend more dosh to get it working.
my gps also works like cack... yes i have tried all the radios..
guess i am another sucker who has to go buy gps gate...

I bought gspgate, and now? what do I need to do?

RayB said:
oh great, so in other words. to get a function working reliably that should be doing it out of the box on these pricey phones, we have to spend more dosh to get it working.
my gps also works like cack... yes i have tried all the radios..
guess i am another sucker who has to go buy gps gate...
Click to expand...
Click to collapse
This is so stupid!!! I'm very angry with HTC. Don't they test in real life their products?!??! Damn it....

i think it is related to powersaving or the gps driver itself is bugging
when you turn off the phone and turn it back on and wait for like 5 minutes to get the gps doing its cold start it works fine. Then i quit tt7 and start it again .. still works fine.. 10 minutes later the phone suspends and i wake it up and suddenly there is no gps. then it finds a gps device and then it finds sattelites and then it got a fix (after way to long time) and then right when it fixes it looses the gps device ..
conclusion: this is has to be some powersaving which makes the gps device doing a cold start again while it is started allready.
i also noticed when you start quickgps and then exit it and go to tomtom it suddenly finds all preloaded sattelites ...
when running advconfig3 the assisted gps is turned off by default and i turned it on. Im going to put it back to default to see if it makes a difference

RayB said:
oh great, so in other words. to get a function working reliably that should be doing it out of the box on these pricey phones, we have to spend more dosh to get it working.
my gps also works like cack... yes i have tried all the radios..
guess i am another sucker who has to go buy gps gate...
Click to expand...
Click to collapse
maybe because it is a separate gps receiver... got nothing to do with radio rom nor driver.. the gps has his own..

i also think that, we have to wait for a new gps driver

This really does suck and shame on HTC

yeah, I sold my tytn 2 because of all the problems... now history repeats...

now I do have gps gate, and it sucks even more, what do I need to do, to get it better?

da_jojo said:
maybe because it is a separate gps receiver... got nothing to do with radio rom nor driver.. the gps has his own..
Click to expand...
Click to collapse
I just stuck the bit in about trying the radios etc because that is what so many people seem to think has an effect on the operation of the handset. If it has nothing to do with the GPS then so be it.
Does not change the fact that it works like cack....

da_jojo said:
i think it is related to powersaving or the gps driver itself is bugging
when you turn off the phone and turn it back on and wait for like 5 minutes to get the gps doing its cold start it works fine. Then i quit tt7 and start it again .. still works fine.. 10 minutes later the phone suspends and i wake it up and suddenly there is no gps. then it finds a gps device and then it finds sattelites and then it got a fix (after way to long time) and then right when it fixes it looses the gps device ..
conclusion: this is has to be some powersaving which makes the gps device doing a cold start again while it is started allready.
i also noticed when you start quickgps and then exit it and go to tomtom it suddenly finds all preloaded sattelites ...
when running advconfig3 the assisted gps is turned off by default and i turned it on. Im going to put it back to default to see if it makes a difference
Click to expand...
Click to collapse
Hi,
I had a similar issue with TomTom 6 yesterday.
I had set the Assisted GPS to ON using the AdvancedConfig program. Whilst i was driving, i would get a satellite fix for about 10 secs then it would get lost, resulting in TomTom suspending for about 15 secs, a fix would be found again, TomTom will come back to life, then lose itself after 10 seconds. This cycle repeated itself throughout my journey.
I then set the Assisted GPS back to its default OFF, did a soft reset and started TomTom again and it worked fine after that.
Could some of the issues we are experiencing be related to tinkering with the Assisted GPS setting?
M

BLL1989 said:
yeah, I sold my tytn 2 because of all the problems... now history repeats...
Click to expand...
Click to collapse
same here!

beh, still cant pick up a single satellite using tomtom7 the satellite lock page is completely blank, with a wheel spinning saying: "poor gps reception, are you in door?" (duh)
while i can acquire a lock using iGo 8, just takes a long time... in door

O2 XDA Serra (Touch Pro) - more GPS problems

Sorry - not a development issue as such but I'm hoping you guys can help with another HTC Touch Pro (A)GPS query. I have read a number of other posts on this but they appear to be inconclusive and I'm not sure if the problems widely reported elsewhere are supposed to have been resolved in the latest shipped ROMS.
I'm experiencing very long acquisition times with the internal GPS on the O2 XDA Serra (just released in the UK), to the point where the GPS is virtually unusable. Cold lock can take anywhere between 15 and 30 minutes, even in open ground in good weather with a clear view of satellites. By comparison, a Garmin eTrex Vista in the same location gets a lock in seconds. I never expected the XDA Serra to equal the performance of a dedicated handheld GPS but I would have expected it to get an initial lock in less than 5 minutes in clear sight.
If and when a lock is acquired, it seems to hold OK and I've experienced no major lag problems.
I'm using Tom Tom Navigator 5, Memory Map Pocket Navigator OS 5 and Google Maps. I've also installed a couple of GPS utilities from this forum - Chartcross GPS Test 1.04 and the HTC GPS Tool v1.1.1.0. These are all configured to point to COM4 at 38400 baud (as per advice in this forum), and I've never had a problem detecting the GPS.
What is bizarre and frustrating is that there is absolutely no mention of GPS functionality in the supplied O2 manual, other than a brief warning about not operating a GPS while driving. The XDA Serra is not supplied with any GPS software or utilities out of the box other than an "External GPS" utility in the System folder, which is completely undocumented. I'm unclear in what circumstances you are supposed to use this utility, but I'm assuming it allows you to set a hardware COM port for an external GPS device (presumably bluetooth?) and select whether or not it is managed by Windows. I've tried turning this off but it appears to make no difference.
I'm aware that the XDA Serra is AGPS capable but I'm unclear exactly what this means in this context (i.e. which particular AGPS technique it actually uses), and how - in the absence of an explicit Program or System setting - my installed GPS applications are supposed to invoke it. I have checked the relevant registry settings in HKLM\Software\HTC\SUPL AGPS:
EnableAGPS 0x00000000 (0)
GPSMode 0x00000002 (2)
Number Fixes 0x3b9ac9ff (9999999999)
QoS Accuracy 0x00000032 (50)
QoS Performance 0x00000059 (89)
Server IP 10.1.101.63
Server Port 0x00001cb6 (7275)
TimeBetweenFixes 0x00000001 (1)
... and can see that the AGPS function is currently disabled (the default), but is this supposed to be enabled programmatically by the GPS application, or do you have to set it explicitly? If the latter, how can you do this other than by hacking the registry?
I have followed advice in this forum about disabling GPS logging (it was disabled by default) using the Schapman Advanced Configuration Tool v3.3.0.0. I have tried enabling the AGPS function using a registry editor, but again it appears to make no difference. In addition, I could see no evidence of it having downloaded an emphemeris file anywhere (unless it's hidden in system ROM), which I presume is how it is supposed to work? If I enable it, doesn this necessarily mean that any of my GPS apps will actually use it?
I have tried using SeaSGEE to download emphemeris data to no avail - it downloads what looks like a good packedEmphemeris.ee file OK but it makes absolutely no difference to performance. I have since uninstalled this and deleted the //windows/packedEmphemeris.ee file.
Finally, if I connect an external bluetooth GPS adapter (the Emtac BTGPS) on COM6 I generally get a good cold lock in less than a minute. I used this all the time on my old XDA Mini S (HTC Wizard) and never had a problem.
So, basically, I'd like to understand how native AGPS works on the Touch Po, how it is supposed to be invoked by GPS applications, and whether there are any tweaks I can try to improve performance over and above the ones I've already tried. Is this a problem that is likely to be improved in subsequent ROM or Radio versions or is this simply a fundamental limitation of a crappy internal GPS chip?
Any advice greatly appreciated.

AGPS
AGPS is basically a utility for operator to be able to track your device for various local ads etc. It uses servers to track instead of GPS.For example Google maps would be able to track your position inside building but with tolerance of a few miles (I guess it is your closest tower) Seems to be some kind of bug when operating with regular GPS (in my case it shuts off GPS every 10-15 seconds making Tomtom unusable.You should see settings for AGPS at Settings-System-AGPS. Disable both tabs. On tomtom use other wired GPS receiver at Baud rate 38400 com port 4. restart after setting AGPS. It did work for me.I have Fuze - same as HTC Touch Pro. Let me know if it works better.

This is exactly how the Fuze is acting. Cold locks (after a soft reset or power off/on) take up to 30 minutes to get. But once you do get a lock, things work as they should. Even AT&T sales reps sat there with me, with 3 different Fuzes and witnessed all three phones doing the same thing. It must be the built in GPS chipset. The Sprint Touch Pro I had for a week, never had any cold lock issues.

I was worried that O2 had modified versions without the GPS module becuase I have never managed to get a lock with the device. Nomatter what I do GPS doesn't seem to work.
It is annoying as I've managed to fix every other problem the Serra ships with. Including getting rid of the default home page for opera when launched vial TFL3D. That was a huge pain in the ass as the XML file cannot be deleted or modified easily, it is an undying file. Damn file protectiona and access rules on WM devices.

is there still isues with gps on this phone?
i'm due an upgrade, currently using a diamond, and find gps is fantastic, locks in a couple of seconds nearly everytime, even after not using it for week still seems to get a fix in under 20 seconds, was looking at the touch hd as i thought it was essentialy the same phone, buf beefed up a bit, but i use gps 3-4 hours everyday, so far this phone seems perfect apart from the gps issues..
i've tried searching but can't find any clear information about it, seen various tweaks but no one can confirm it definatly works, my phone's primary use is gps, would i be a fool to upgrade to the serra?

Tyr said:
I was worried that O2 had modified versions without the GPS module becuase I have never managed to get a lock with the device. Nomatter what I do GPS doesn't seem to work.
It is annoying as I've managed to fix every other problem the Serra ships with. Including getting rid of the default home page for opera when launched vial TFL3D. That was a huge pain in the ass as the XML file cannot be deleted or modified easily, it is an undying file. Damn file protectiona and access rules on WM devices.
Click to expand...
Click to collapse
OK. I had the same problem, never got locked on GPS.
It is ALL software issue. Flash different rom, new radio (recommend 20M1) and use tomtom7. Older tomtoms for some reason do not invoke gps receiver on touch pro. GPS on serra works perfect, on mine it takes about 20-30 seconds to get satellite lock. Relax Just flash rom different that the o2 one.

The GPS is rock solid on my XDA Serra with fast GPS start-up times with the PROven ROM - http://forum.xda-developers.com/showthread.php?t=444653.
I did have GPS problems with the standard O2 ROM, as others have said it's a software issue.

All issues have been SOLVED
Hi. just go to this post and you will have a gps lock in a matter of seconds. enjoy. thanks
http://forum.xda-developers.com/showthread.php?t=467374

Go to http://www.my-xda.com/software_updates.jsp to download the latest software updates for every O2 XDA mobile!

Yes I just updated my ROM and the difference is HUGE. Almost instant connection with my GPS.

Yes, apparently O2 removed QuickGPS because at some point they planned to enable their own AGPS servers, but did not get round to it and forgot to add back QuickGPS.......

The Avatar said:
Yes I just updated my ROM and the difference is HUGE. Almost instant connection with my GPS.
Click to expand...
Click to collapse
hi the avatar
which ROM did you go for on your serra, i am having similar probs
just when i thought i had sorted it following other suggestions on this forum, beginning to think the gps was single use
cheers
r

GPS Lock Times

I know there are MANY threads to the GPS issues and I am not having problems with GPS lag. I have searched and read and already have the tweaks installed (running the Elite rom rc2 which already had all the tweaks setup) and changed the no data sleep timeout to 1.5 seconds. I also tried on my original radio version, 32 and now have 28 and see no difference in GPS lock times. It will never lock on using Google Maps or iGuidance. In google Maps it says "seeking gps satellites (0)..." for about 5 min then says your gps receiver is having trouble tracking satellites etc. The only way I can get it to work is to use GPS Test, let it get a lock which usually take 5-10 mins, then close GPS Test and open either Google Maps or iGuidance and it will then work fine.
What is also strange is that when using GPS Test, the only way I can get it to work is to have the GPS info set to auto. It will scan then find the gps on com port 4 and 9600 baud. Then it will start up and try to lock on. The next time I run it it will already be on com port 4 and 9600 baud but won't find the gps device. I have to set it back to auto, and restart GPS Test, then it finds it.
There has GOT to be a way to fix the gps lock time on this thing. I have tried with A-GPS on and off and tried with quick-gps and saw no difference in lock speeds. Interesting thing though, I guess Google Maps will using cell tower location to identify where you are? When I use it without gps being turned on, or while it is searching for satellites, and I click "my location" it gets a fairly accurate location on the map.
It seems to me that the issue is with the com port and communication. Almost like the gps won't come out of sleep mode or something and gps test is the only program that can "wake" it.
Thanks for any info.

I am in the exact same situation as you. My TP fails to lock satelites 98% of the times i try.
I have read everything posted about TP GPS on this forum, i have tryed most ROM's and almost all available radio's, i have tryed most tweeks and all that in different set-up.
And after all that my GPS lock's rarely (2-5% of the times i try), and most importantly it doesent seem to be related to the radio nor to the ROM. At this moment i tend to think that i was unlucky with my TP that perhaps is from a lot of TP's with retarded GPS module.
From the forums it seems that most of the ppl dont experience this extrem problem with the GPS, it seems that most of the ppl around only experience laggy gps module update.
Atm i am still waiting for Elite RC3 hopeing that perhaps they'll bring a new gps driver, that will solve my problem.
In case Elite RC3 doesent help i will revert to stock hard-spl/radio/ROM and ill take it to the warranty service.
Sadly this problem with the GPS from my TP blackens my experience with it.

Are you guys sitting in your homes trying to get a lock? because then it is very unlikely you'll ever get a lock.
I have to go outside and wait about 1 minute to get a lock and then its fine. However, I DO have to use the HTC gps tool to get a lock before I can use google maps or any other gps program.

I am outside with no obstructions. I did find this app and may play around with it. So far I havne't been able to get it to get a lock unless I use GPS Test first.
http://www.geoterrestrial.com/gpstoday/

My Telus Touch Pro locks in 3-5 seconds every time after modifying the GPS and adding the correct IP settings for Telus' AGPS. This combined with OCN8 makes for an excellent GPS device.
The guide for the GPS hack was from this forum, just can't recall where.

I have the same problem with GPS Test as you all described. I am now running qsqa's PROven ROM and I noticed following: GPS Test often fails to start-up the GPS receiver, but VisualGPSce worked every time I tried. It is a free software, included in the PROven ROM. If u use a different ROM, you can download it from here: http://www.visualgps.net/VisualGPSce/default.htm
Give it a try, it sure helped me!!!!

Does GPS work, or does GPS not work?

I am currently following a few websites to keep my news upto date with my ATT fuze. I have tried just about every single possible solution to get my GPS to work. Disabled aGPS, tried GPSTest, flashed various ROMs, tried various GPS programs, change poll interval to 500 ms, etc, etc.
I have owned this phone for 4 months now and I have yet to get a satellite lock to work. The closest I ever got was GPTtest running showing 6-7 different satellites in view, trying to connect to about 3 of them. I left that running for nearly 2 hours, and no luck. Whats the deal?
Please do not tell me to use the search function because I have searched XDA as well as google, and they all end up in the same place of speculation on why the GPS might not be working, but none of the said methods actually make it work.

It works man. I ran 6.5 beta with Google Maps installed. Took me to a location I've never been to and back.

xgm541, before using AGPS, do you have the right gprs settings for your phone? Have you confirmed that your gprs works?
Anyway, for the gps, read up on my thread about me finding an alternative way to get a better fix.
HERE:
http://forum.xda-developers.com/showthread.php?p=3514443#post3514443
Also, make sure you flash your radio if possible. Read up on the radio thread and i am sure other ATT users have posted the performance of GPS based on the Radio.
I am not an ATT user, as i am from Malaysia. So i am unable to help you on the AGPS part.

I second arvin's suggestion on flashing a radio. If you're in the US, I highly recommend 1.12.25.19, I have AGPS and GPS logging disabled, use GPS Test and always get a cold fix in less than a minute outdoors.

yeah ive got no issues with it, used it last weekend in the car and worked perfectly.

GPS definitely works. Flash the latest leaked AT&T rom, and just try it out. Don't flash cooked ROMs but the stock leaked ROM. If GPS doesn't work in that ROM then something is wrong with your particular phone. I'm in California and I get locks in under 7 seconds, and I'm using wm 6.5

GPS is about all that im unhappy with, on my fuze.
It does work, i placed a 3 stage multicache using only my fuze with googlemaps/GCz last week and everyone whos found the cache say my coords. were almost dead on. (coords were an average of around 20 readings at each site)
My trick (doesnt work fast but it works) is to turn on gmaps let it sit there for
1 min while it gets a lock, then switch to my gps (geocache) program and i have nps. I cannot get any other programs to lock or hold the gps without first running the googlemaps program. And everyonce inwhile as soon as i turn it on ill lock up 10 birds. Doesnt make much sense, and i too have played with all i could find (agps,baud,comport, windows settings etc)
good luck

I am using the standard HTC-ROM. All of these settings have been extensively tested in Europe the Netherlands. These are really the optimal, after testing many buffersizes, pollintervals etc. The most crucial one is PollInterval and SleepOnNodata needs to be equal or larger than PollInterval. Disabling or enabling windows GPS logging does not matter, as it is only used for debugging according to MSDN. If you start using AGPS (I Don't!) then make sure all settings are correct to download the info from your provider (mine does not support this and thus it is turned off in these settings).
0) Assuming that the hardware is still OK do the following:
1) Go to settings > System > external GPS.
Check if all options are still normal.
Program port is COM4.
Hardware port : none.
Baudrate : 4800.
Access: Check automated GPS control.
NOTE that an external connected GPS (e.g. Bluetooth device) unit will have a baudrate of 4800. The internal which resides at Com4 has a standard baudrate of 57600. These settings need to be checked to make sure they are still this way and it will also give Windows automated control of the GPS system.
2) You need to install Advanced Config 3.3.
http://www.touchxperience.com/fr/out…ol-32-cab.html
With Advanced config 3.3 under GPS:
1. disable A-GPS
2. disable GPS logging
3. logfile name must be empty
4. old logfile name must be empty
5. maximum size of logfile must be 0
6 delete the files : \windows\GPSLogFile.txt and \windows\GPSLogFileBack.txt
After these settings the tool will soft-reset your mobile.
3) Then edit registry with TotalCommander
http://ghisler.fileburst.com/ce/tcmdpocketarm.cab
Don't make any errors here, check your steps carefully.
Under: HKLM\SYSTEM\CurrentControlSet\GPS Intermediate Driver\
- Drivers\GpsOneDevice\PollInterval -> 100 (default is 1000)
- Drivers\InputBufferSize -> 512 (default is 4096)
- Drivers\OutputBufferSize -> 512 (default is 4096)
- Drivers\SleepOnNoData -> 100 (default is 1000)
- Multiplexer\MaxBufferSize -> 512 (by default not present, you have to create it, make a Dword value)
After these settings are in place, restart / soft reset your device.
4) Run the program QuickGPSfix and download the new data.
This step needs to be repeated anytime it is outdated.
5) Download and install the HTC GPS Tool.
http://rapidshare.com/files/84815853...C_GPS_TOOL.cab
Upon starting it should show COM4 and a Baudrate of 57600.
Go outside the house, preferably with good weather.
Hit the "Open"
Hit the "Nav. Int."
Leave all as is, no need to change the options.
You should now start to see the GPS data flow over your screen in the grey area. Wait patiently, the first fix can take up to 10 minutes (afterwards it wil go faster). If it fails it sometimes seems to help to move around a little bit and to reboot your device if it takes way to long (+10 mins).
See if you have any red bars below the satellite numbers (signal strength per satellite) When you get a fix, the bars and satellites to which it is connected will show up green. If there are no red bars here, no data flow etc then there is something wrong with the ROM / radio combination and your phone.
Close this program if you have a fix.
6) Start-up Google maps. Wait for it to download the basic map information, so you don't have any interference from the "now downloading data" message. Then start the GPS use. Fix should now go fast. Once it has a fix you can start moving towards your destiny.
From now on use HTC GPS tool to get a fix.
Close this program, start the program with which you want to use GPS.
Good luck, Jouke.

GPS works good enough.
I definitely suggest radio 1.11 or later.
Of course best to get the whole 5.05 ROM.

Work great! To nearly perfect location!
I'm using the ATT test ROM and google maps with street view.

Works better than any phone I've ever owned when the test ROM or a derivative is running the show. Matching radio must be used. I've tested the Ralphael 1.12.25.19 (shipped with test ROM) and the Blackstone 1.13.25.24 so far.

Messed around a bit more and got instant 10 sats after changing to
baud rate of 9600 on com4... i guess the windows management of the gps is most of the problem (?).

I had the same exact problem as you. I couldn't get a lock no matter what I tried, I was thinking of going back to the Kaiser. I then decided to change my radio from the .32 to the 1.12, left GPS Test running for about 30 minutes, still no lock.
I was standing on the balcony of my apartment....
Then..... when I got into my car I tried again and I got a lock in under 30 seconds..
Not to insult your intelligence by any means. BUT, are you outside in the open?? Because once you have set those settings that everyone here has asked you to do. It should work.
Here is what I did.
Change the stock radio. I believe this to be the main culprit. 1.12 works good. then set your standard GPS settings to Baud 96**** and to COM 4. Run GPS test in the open, outside.
It should work. I sometimes mess around with the AGPS settings. I mainly leave it off because I honestly have no idea what it is.
I get a lock in under 1 - 2 minutes every time. However, I am having a problem with the speed of the GPS. I use TomTom 6 and sometimes my triangle cursor wiggles oscillating from left to right. I don't know why. and also sometimes it is delayed.
I have yet to find a fix for this, I would be glad if someone can please help. I'm not sure if this is a video problem or a GPS problem.

Worked Both Ways
I've had my Fuze since just before ATT released them, and the GPS worked fine for me, once I could get a signal, obviously a big issue. I followed all of the GPSidfix cab etc and they helped, had to load GPS Test to prime, once it got a full lock and said running I could use Google, TomTom 6 or Livesearch and get instant locks.
I don't flash ROMs, but finally broke down and put the ATT Leaked Rom on my Fuze, and bammmmmm. GPS is almost instant in every single one of those applications, we're talking 2 or 3 seconds when I'm outside. I get locks in my house when I'm by the windows as well.
I haven't driven today, so I can't speak to lag etc or other issues, but once I knew the lag it never bothered me that much. Overall, the new ATT Leaked ROM has been awesome for GPS.

i never changed my radio, am using the stock radio on a fuze bought 1 1/2 months ago, i disabled agps and am using com4 baud 9600 super fast gps now.

GPS Position Lag w/ internal (built-in) GPS receiver
freekquency said:
i never changed my radio, am using the stock radio on a fuze bought 1 1/2 months ago, i disabled agps and am using com4 baud 9600 super fast gps now.
Click to expand...
Click to collapse
I can second or third... that.
Firstly, I don't mean to invalidate any previous comments, posts or fixes, or insult anyone's intelligence. I just merely report my VERY UNSCIENTIFIC findings.
I've had my ATT Fuze (HTC Touch Pro) for about 3 months now, and I've tested various GPS apps in the quest of finding out whether the hardware is the one to blame for the GPS POSITION LAG. I'd like to share my personal findings so that it may help others.
The ONLY GPS application that I can say that come very close to NOT having GPS POSITION LAG is Mobile Navigator 7.3.1 (build 137). On top of that, this version of Mobile Navigator is the only one so far to be ALMOST right on when the destination is reached. Other applications that I've tried always show the destination is 2 or 3 houses down the street.
The following applications I've tested all have position lag: one previous version of MN7, IGo8, TomTom 7, iGuidance, Garmin XT, and NDrive.
Did I use the registry tweak as suggested in previous post and did it resolve the lag?
Yes, I did try the tweak. But personally, I don't think it solved the problem.
Did I change to different ROM or Radio?
No. Everything on the phone is stock ATT Fuze.
So, is the hardware or HTC the one to blame for the lag?
Sorry! YOU have to come to the conclusion on this one.

I have a related problem, with the GPS device freezing (?) at high speed. I drove recently in Germany, and up to 120km/h my navigator (HTC-TP + Destinator 7) worked fine. When I drove faster it just stopped tracking, and resumed when I slowed down below 120km/h resumed.
Anyone experienced that or has an idea how to fix it?

Kepela523 said:
I had the same exact problem as you. I couldn't get a lock no matter what I tried, I was thinking of going back to the Kaiser. I then decided to change my radio from the .32 to the 1.12, left GPS Test running for about 30 minutes, still no lock.
I was standing on the balcony of my apartment....
Then..... when I got into my car I tried again and I got a lock in under 30 seconds..
Not to insult your intelligence by any means. BUT, are you outside in the open?? Because once you have set those settings that everyone here has asked you to do. It should work.
Here is what I did.
Change the stock radio. I believe this to be the main culprit. 1.12 works good. then set your standard GPS settings to Baud 96**** and to COM 4. Run GPS test in the open, outside.
It should work. I sometimes mess around with the AGPS settings. I mainly leave it off because I honestly have no idea what it is.
I get a lock in under 1 - 2 minutes every time. However, I am having a problem with the speed of the GPS. I use TomTom 6 and sometimes my triangle cursor wiggles oscillating from left to right. I don't know why. and also sometimes it is delayed.
I have yet to find a fix for this, I would be glad if someone can please help. I'm not sure if this is a video problem or a GPS problem.
Click to expand...
Click to collapse
TomTom7 also isnt working perfectly for me. It seems to be about 3-5 seconds too slow. It shows me at the street after I have already passed it. I made the registry setting changes that were posted earlier and will test the lag this afternoon ( it may be the Polling Interval being set to 1000 vs 100 i hope. I will report back to say if it has helped

Fuze: GPS Faaarked :(

Ok, I've moved from a Touch Pro to a ex-AT&T Fuze so that I could get 850Mhz band I needed on Telstra (Australia). It's all working awesomely thanks to the guys help here and after a diversion where I had to get my SIM card holder replaced.
Now the remaining glitch is that the GPS is totally unusable Which is a show stopper since I use it a lot. I had it in the car for a 2 hour drive, and it only found one or two satellites the whole time, and they were not strong enough to get a lock. Most of the time it showed zero. Sometimes I eventually get a lock, but it doesn't last.
By comparison the Touch Pro has no problem getting and keeping a GPS lock under the same circumstances (with the two units side by side). They are both running Tael's ROM and the same version of Tomtom. Google Maps has the same issues.
Two possibilities I can think of are:
1) The Fuze has a bad radio ROM and upgrading/downgrading might help
2) When the phone repair place replaced the SIM holder, they didn't connect the GPS aerial correctly - so I'll need to take it back
For #1, I'm a bit doubtful as it is reporting v1.14.25.35, protocol 52.64c.25.35U and this thread seems to rate the GPS reception as one of the best. Also can I put any Raphael radio ROM on the Fuze? Or do I need to find an 850Mhz AT&T one?
#2 is going to be awkward as I'll have to convince them they have done something wrong and get them to repair it free of charge. Can anyone tell me how likely this is? Has anyone pulled one of these units apart? Is the GPS aerial something that they may have just not plugged in?
Any other suggestions would be appreciated. (I'd be over the moon if there was a simple software fix. Anything else I should check? (I have updated QuickGPS with the latest data etc).
Thanks in advance!

I'd say run GPS Test while standing still and wait for a lock - I'm not sure what conditions you've tested in, but I've had experiences in the past with the Fuze (and a magellan) that if you were driving, the thing would take forever to get a lock if you didn't get a lock before moving.
Also; I'm running 1.14.25.05 - I ran .35 for a while, but reverted because NRG uses the .05 rilphone.dll; you could try that....

Thanks for the reply, but I've tried it standing still. Very occasionally I can get a lock, but it takes about 30 minutes, and doesn't seem to matter if I am moving or not. My Touch Pro is running a really old radio (10.x from memory) and it can lock and hold the satellites fine.
Has anyone pulled one of these things apart and can tell me what could be a hardware issue? Is the GPS aerial something which needs to be plugged into the mainboard for example?

Does your quick gps have the correct regional setting? Check HKLM/Software/HTC/QuickGPS. There is a value for region-I'm not sure if it updates automatically or not for your location. All I know is that my fuze's GPS sucked donkey balls in the UK. Normally, it just sucks French Poodle balls. I don't use A-GPS, so that wasn't the issue.

Hmm...ok. I had assumed that A-GPS was the technology, and QuickGPS was HTCs implementation. Are they different things?
Anyway, both the Fuze and the Touch Pro are running exactly the same ROMs (Tael's latest) with the same QuickGPS software and identical registry settings (but different Radio ROMs).
I just did a refresh of the QuickGPS data and put them side by side on my balcony for about 10 mins. Ran Tomtom with the GPS diag screen. Not a great view of the cloudy sky, but...
Touch Pro:
Shows a number of satellites, and finds reception from 3 or 4. The dots move around the compass a bit. Not as many detected initially (grey dots down the bottom of the screen is only about 10). Still can get a signal from one satellite sitting inside on my couch.
Fuze:
Full bottom row of grey dots, but didn't get any signal from a single satellite the whole time. Nothing. Also, the positions of the satellites on the compass seem to be in different places than the Touch Pro.
Re the region settings... the registry on both devices doesn't have this entry. There is a curRegion=dword:00000000, but no region at all. I'm wondering why this would be needed since the Touch Pro doesn't have it either and seems to work, but suggestions are welcome.
I notice there is no Services key either, like I found in some other posts. eg:
[HKEY_LOCAL_MACHINE\Services\QuickGPS]
"Keep"=dword:00000001
"Index"=dword:00000000
"Order"=dword:000000FF
"DisplayName"="QuickGPS app service"
"Description"="dll for icon in TodayScreen"
"Context"=dword:00000000
"Dll"="GPSAux.dll"
"Prefix"="GUX"
Again, the Touch Pro is working fine without this, but is this still needed in modern ROMs?
Still wondering if this is a hardware problem. Can anyone tell me how likely it is that the phone repair guys forgot to plug an aerial in or something?
Also, is there any better GPS diag software or is Tomtom the best bet?
Thanks.

A-GPS and QuickGPS are unrelated. A-GPS uses cell towers to help get a fix. If you've got the same roms on each device, I'd guess they're working the same. I think the gpsaux.dll service just warns you when the data expires, but I'm not 100% sure of that.
Try different radios; that's all I can suggest. The GPS on my fuze pretty much blows, so you're not alone.

Ok...how do I turn AGPS on again then?
By "pretty much blows" I assume you don't mean you can drive on an open freeway for 2 hours with clear skys and only faintly see one satellite the whole time do you?
I was kinda happy with the GPS on the Touch Pro even though it would sometimes take until the end of my street to get a lock.
Wonder if I should do a hard reset before taking it back to the repair shop... sigh.

You can turn A-GPS on with advanced config, and also enable logging, which will tell you if it's working or not. These are the keys for logging (I don't use it, so mine are blank).
Code:
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\GPS Intermediate Driver]
"MaxLogFileSize"=dword:00000000
"OldLogFile"=""
"CurrentLogFile"=""
I think that A-GPS is HKLM\software\HTC\SUPL-AGPS\enabled=1, or something like that.
I used to get pretty good cold locks, like in less than 2 min reliably, but now it seems to take forever, as much as 30 min. It seems like my gps has gotten worse over time. Once it's locked, it works fine, though.

Ah yep - thanks. Advanced Config says "Assisted GPS = Yes". It's logging, but for some reason I can never open the log file (error, cannot be opened). The backup log file opens, but I'm not sure how to read it. About 4 lines with seemingly random text and lots of commas...

Ok, this is still not working...
I took it back to the repair place, who opened it up, did a visual inspection and told me there was nothing wrong with the hardware. They said it is a software problem (which it may be, but faaarked if I can work out what)
I have downloaded the HTC GPS Tool. I don't exactly know what the log data that it shows is, but I'm guessing since it seems to connect ok to COM4 that it is finding the GPS chip in my phone, just not getting anything useful as far as a signal goes.
Does anyone know how to read the logging data from this tool? I'm guessing that just because it is receiving data doesn't mean that it can see any satellites (since it performs just as well indoors)
Next I tried loading 'Raphael Radio 1.08.25.20M1' and the relevant Rilphone cab - when I read up about Rilphone cabs I started to wonder if that was the source of the problem, since I assume TEAL's ROM doesn't include the specific version for my radio. No luck though.
Next I put on the latest TEAL ROM, mainly just to set everything back to defaults in case I had screwed anything up. Updated the QuickGPS and then spent ages standing on the side of the road with my fingers crossed...
Nothing. Not a single satellite signal.
Any suggestions? Otherwise I'm going to have to buy a new phone. Should I keep trying different radio ROMs? Is there any way to check the hardware is actually ok?

I don't know if the microsoft gpsid.dll is included in the rom or not, but you could try switching from using the HTC intermediate driver (gpsidhtc.dll) to it. I've been using the gpsid.dll for a few weeks, and it's not worse, but may be better than the HTC one (tough to say, really).
These are the reg keys for gpsid.dll:
Code:
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\GPSID]
"Dll"="GPSID.dll"
"Order"=dword:10
"Keep"=dword:1
"Prefix"="GPD"
"Index"=dword:0
"Context"=dword:0
"Flags"=dword:2
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\GPS Intermediate Driver\Drivers]
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\GPS Intermediate Driver\Multiplexer]
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\GPS Intermediate Driver\Multiplexer\ActiveDevice]
"Dll"="GPSID.dll"
"Keep"=dword:1
"Flags"=dword:2
"Context"=dword:12344160
Here are the ones for the HTC driver:
Code:
[-HKEY_LOCAL_MACHINE\Drivers\BuiltIn\GPSID]
[-HKEY_LOCAL_MACHINE\System\CurrentControlSet\GPS Intermediate Driver\Drivers]
[-HKEY_LOCAL_MACHINE\System\CurrentControlSet\GPS Intermediate Driver\Multiplexer]
[-HKEY_LOCAL_MACHINE\System\CurrentControlSet\GPS Intermediate Driver\Multiplexer\ActiveDevice]
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\GPSID]
"Dll"="GPSID_HTC.dll"
"Order"=dword:100
"Keep"=dword:1
"Prefix"="GPD"
"Index"=dword:0
"Context"=dword:0
"IClass"="{A32942B7-920C-486b-B0E6-92A702A99B35}"
If you try it, do a full backup beforehand. I had trouble trying to get the HTC driver reloaded once. You may need a hard reset/restore.