Database Users

TomtomNavigator - Slow Lock

I wonder if anyone can help.
My HTC Advantage is running PK3 ROM With radio 1.5
Although it sees all the satelites, (at the moment 12 satelites showing all grey) it takes upwards of 5 minutes to get a lock.....
I wonder if anyone has any ideas as to what is causing this? BTW this is a legal copy of TTNAV

barneyrubble said:
I wonder if anyone can help.
My HTC Advantage is running PK3 ROM With radio 1.5
Although it sees all the satelites, (at the moment 12 satelites showing all grey) it takes upwards of 5 minutes to get a lock.....
I wonder if anyone has any ideas as to what is causing this? BTW this is a legal copy of TTNAV
Click to expand...
Click to collapse
A few wuestions: Is your QuickGPS data up to date? Also, with the 'new' journies where lock is taking a long time, are you starting from the same place as where you last left or somewhere new? what other apps are running? What is the baud rate set to? How is the unit mounted and where in the car? Is it a renault (or another car with a reflective screen)?

Thanks for the reply.
Yes, quickGPS is up to date. I am indeed starting from the same place where I finished last. For example, drove home last night - with a fix, got up this morning to go out and about 5 mins to fix the position, even though it couls see 12 satelitles for about 3 minutes beforehand.
Other apps - Call firewall, however it's not being used as my primary phone.
Yes it's a Renault Megane. However, I have also tested this sitting on the windowsill (the Advantage - not me and the same results are gained. I have a Brodit mount which sits on the right hand side of the driver against the side window. My TT GPS unit picks up a fix in about 20-30 seconds.
I am coming to the conclusion that I may need to use the TT GPS unit rather than the built in one.
The Baud Rate is set to 9600 I htink.

Personally I blame TomTom.
It is seeing the signals, and is showing multiple strong sattelite signals (i am assuming the bars are blue to show a good signal, not grey to show too weak?). I have seen on with every single bar blue and good signal and still would not get a fix.
Of course, i could be totally misunderstanding the way GPS works, but as I understand it, the chip simply forwards the signals from the satellites and works out a rough location, and then tomtom translates that to a definite fix?
I've seen it on an advantage, a Kaiser and a 3300 updated to Windows Mobile 6 so far. Only with the latest version of TomTom though.

barneyrubble said:
Thanks for the reply.
Yes, quickGPS is up to date. I am indeed starting from the same place where I finished last. For example, drove home last night - with a fix, got up this morning to go out and about 5 mins to fix the position, even though it couls see 12 satelitles for about 3 minutes beforehand.
Other apps - Call firewall, however it's not being used as my primary phone.
Yes it's a Renault Megane. However, I have also tested this sitting on the windowsill (the Advantage - not me and the same results are gained. I have a Brodit mount which sits on the right hand side of the driver against the side window. My TT GPS unit picks up a fix in about 20-30 seconds.
I am coming to the conclusion that I may need to use the TT GPS unit rather than the built in one.
The Baud Rate is set to 9600 I htink.
Click to expand...
Click to collapse
That is really strange. I doubt it is an issue with the TT software - the fact that it is taking a liong time to get a fix from the same position after only a night sounds more like a problem with the GPS than with the software. However, it is getting a fix.
Have you tried testing the GPS with another piece of software (eg Tracky) to see if that gets a quick fix. Tracky will also show you how many satellites have been acquired and when it has a fix.

I was under the impresion it wouldnt, couldnt show the satalites until it had a lock, maybe thats to do with quick gps knowing where you are, "where the satalites should be." but 5 minutes from a cold boot sounds about normal to me, even my old bluetooth reciever took about that long.
you have to take weather conditions ie, is it overcast, cloudy, ect. I found standing by a window didnt get me a lock, if i was testing it leaving it standing by an open window often used to take 15 - 20 minutes.

johnwalk said:
I was under the impresion it wouldnt, couldnt show the satalites until it had a lock, maybe thats to do with quick gps knowing where you are, "where the satalites should be." but 5 minutes from a cold boot sounds about normal to me, even my old bluetooth reciever took about that long.
you have to take weather conditions ie, is it overcast, cloudy, ect. I found standing by a window didnt get me a lock, if i was testing it leaving it standing by an open window often used to take 15 - 20 minutes.
Click to expand...
Click to collapse
No - it does show them. When it shows them, it knows their position. 'Lock' is when it knows your position as a result.
5 minutes is a long time in my experience, even for TT, particularly when starting from where you left off. The 15-20 minutes could have been because the signals were being bounced.

barneyrubble said:
I wonder if anyone can help.
My HTC Advantage is running PK3 ROM With radio 1.5
Although it sees all the satelites, (at the moment 12 satelites showing all grey) it takes upwards of 5 minutes to get a lock.....
I wonder if anyone has any ideas as to what is causing this? BTW this is a legal copy of TTNAV
Click to expand...
Click to collapse
Hi
Could you tell me which version of the TT and the maps you are using. I use TT6.030 and 6.75 maps it works perfectly within ten seconds. you can download the TT6.030 update if you are running TT 6.0... and it is free.
Good luck

Hi there,...
i also can not confirm these long fix times.
I am Using Ameo (with orig. WM6 HTC Rom) and TT 6.030. (ROM 2.21 / Radio 1.50)
I got a fix within <1 min....
When I got in the car, start TT and set target location then it takes only another 10-15 Sec to get the fix. From my point of view I can say nothing
against TT and also not againt the internal GPS. (Quick GPS more or less always valid, due to update with every sync)
Heard of these problem and happy that I can't confirm

Hmmmmm..... Well, TT6.030 won't install on my Advantage. Don't know why, just immediately pops up with "the installation was unsuccessfull". TTHome says 6.030 is not compatible with my device. So I guess that's why.
Trying to get the BB Client working, I made the ROM look like an HTC Hermes, which could be why it's saying it's incoimpatible. I have given up with the Blackberry client at the moment, so will flash it back to be an Athena soon and see if that solves the problem.
Thanks for all the help guys.

Flash Radio rom again
Hi,
I have had the same problems. Mine was solved after I flashed the radio rom again. I think something went wrong while you were flashing the previous rom. Give me a pm and I will send you the latest 6.032 tomtom for your Athena.
QAN

How well does your GPS work?

Just surveying how well the GPS on the Touch works for most people. It seem as though many people still have problems, even after the carrier updates and all the hacking done here. I personally could never get the GPS working consistently without using Alltel Navigator, which cost $10 a month.

My current theory is that the phone's radio injects noise into the GPS receiver, either because it shares an antenna with the phone, or for the same reason why a powerful radio signal (like driving past a transmitter tower) can overwhelm the front end of receivers that aren't even near the transmitter's frequency.
Evidence: If I launch Google Maps when I'm offline, and I can select "Use GPS" and avoid having Google Maps try to go online before it acquires at least 3 GPS satellites, it seems to lock on within a minute or so about 90% of the time.
If anything causes the phone to go online before I've acquired GPS, it almost never seems to succeed.
If I take/make a voice call, or engage in sustained data transfer, it almost always seems to lose the GPS signal.
If I pan/scroll the map and cause Google Maps to need a BIG chunk of data, it will probably lose the GPS signal.
I'd be interested to hear whether anyone else has noticed a similar inverse correlation between RF activity and GPS acquisition.

Hmmm, I haven't noticed any correlation between data and location, it's an interesting theory though. It takes me anywhere from a minute to 15 seconds to get a lock, and when occasionally satellite signal drops out, Google maps finds it again within 10 seconds or less. I'm a verizon user, btw, and I use GMaps, Live, and TomTOm7+GpsViewer.

Mine works great -
Mine works great - I have Garmin XT for turn-by-turn and it seems to find satellites pretty fast - The other day I decided to try a little experiment and I set up both my Sony GPS and my Touch and pressed "go" at the same time and the Touch GPS was just a fraction of a second behind the Sony (both from a cold start), which I think is pretty good - I have no problem using Windows Live, but for some reason the most recent Google Maps doesn't work as well, it can take forever (seemingly) to lock.

baud rate
after doing a little more
research, i found a post
suggesting to use the
57600 baud rate in google
maps. it worked and i got
a lock within about a minute
sorry bought the english
im typing on my phone here
at work.

my 6800 locks consistanly with in 15 seconds. Just bought the wife a 6900 and its been taking about 1-2 minutes. Not sure why that is.

i had a lot of trouple with my gps being inconsistent and what not. this post on ppc geeks fixed the problem now i connect 6-11 satsellites in 30 seconds or less. duno if it'll help u but u can try it:
http://forum.ppcgeeks.com/showthread.php?t=36377&highlight=shadow-tech+agps
not taking any credit for that guide it was pmed to me im pretty sure all acknowledgements are made within the post itself.

Use this to get your GPS working well...
My GPS works excellently with Google maps, as well as with iGO8. I can lock into about 8 sats in 15 seconds or so using the AstroGPSLauncher that AstronusX created and posted at this thread.
Took me just a couple of minutes to create the shortcut and put it in my program list.
I might lose satellites in iGO8 if I get a phone call and take it, but it will get back the sats after a minute or two once the phone call has completed.
Hope this helps.
Steve

Carrick1973 said:
My GPS works excellently with Google maps, as well as with iGO8. I can lock into about 8 sats in 15 seconds or so using the AstroGPSLauncher that AstronusX created and posted at this thread.
Took me just a couple of minutes to create the shortcut and put it in my program list.
I might lose satellites in iGO8 if I get a phone call and take it, but it will get back the sats after a minute or two once the phone call has completed.
Hope this helps.
Steve
Click to expand...
Click to collapse
Do you have M2D plugin?
I have NFSFAN Rom and Igo8 is really pain. If you switch to Today or just phone - there is no way to get IGo back. Have to Reset.

Yes, I've been running iGo8 on NSFFAN's 1.08 ROM. I agree that it dogs down damn bad when I get a call while running iGo, but I can get it back up without having to reset if there isn't anything else running. It does take quite awhile to get sat locks back though after switching over to phone. It might be quicker to close out of iGo and restart.

Thanks for all the helpful post guys, that 57600 baud rate didn`t last to long. It was just as inconsistant as anything else I tried. I`ve heard about the Shadow Tech`s Fix for a while now but never tried it till last night. I am having some trouble with the dialing ##3424 step. I`ve tried the different 3424 numbers, and using task manager to open Dmrouter.exe under /DIAG parameters. Nothing happens on my phone, and I don`t see HTC Diag in Device Manager on XP. I have another post on the Shadow Tech Fix thread, but if anybody here knows what I`m doing wrong I`d appreciate a little info.

BTW I`m using NFSfans alltel 1.02 rom

pknyo said:
Thanks for all the helpful post guys, that 57600 baud rate didn`t last to long. It was just as inconsistant as anything else I tried. I`ve heard about the Shadow Tech`s Fix for a while now but never tried it till last night. I am having some trouble with the dialing ##3424 step. I`ve tried the different 3424 numbers, and using task manager to open Dmrouter.exe under /DIAG parameters. Nothing happens on my phone, and I don`t see HTC Diag in Device Manager on XP. I have another post on the Shadow Tech Fix thread, but if anybody here knows what I`m doing wrong I`d appreciate a little info.
Click to expand...
Click to collapse
If you go into windows and execute Dmrouter.exe it should, it may not change anything on your screen. Easy way to tell is if you have an activesync connection, execute it, and if activesync disconnects then your in it. Another way is to check task manager, and see if it is running.
There was a problem with the driver for the Vogue in WModem. I found a thread with the fix:
http://forum.xda-developers.com/showthread.php?t=462712

Valahalla? I know it has to do with GPS just wondering what it is

Phone shows up as Palm treo modem
I got dmrouter.exe working, but in vista it shows up as palm treo modem after drivers are found and installed. I`ll try again in XP and see if it happens again.

Wow I finally got this to work (Shadow Techs Fix)
It took about a day and a half, but I finally got it!
1.) I flashed back to Official Alltel 6.1 Rom and skipped customizations.
2.) I followed the steps in this thread http://forum.ppcgeeks.com/showthread.php?t=36377&highlight=shadow-tech+agps
3.) Reflashed back NFSFAN`s 1.02 Rom. I then tested it out and 10 seconds later I had 8 satellites locked on me.
Thanks to everybody who helped me out here with your posts. I started this thread as just a kinda survey to find out if I was not alone in having so much difficulty making my phone work as it should, and ended up a very happy Touch owner.

on alltel
it almost never works. shadow-tech's fix helps immensely

im in dominican republic
and i never manage to get a gps signal.
=/ is it me or the phone?
or the fact that this island is worst then the one in LOST

I checked the accuracy of the GPS on my phone about a year ago- Sometimes I work with surveyors, so we matched my vogue against a survey grade GPS to determine how off it was- My phone was +/- 3 feet (1m) in latititude and +/- 10 feet (3m) in longitude. I think that's pretty damn good. This was in a refinery in NJ, USA, with lots of big steel tanks around.
First I was using gps toggle, now I'm running NSFANs 6.5 v8 with gps viewer. I never have trouble getting a lock after about a minute of warming up.

Concerning the Shadow tech fix some of you guys have used here : http://forum.ppcgeeks.com/showthread.php?t=36377&highlight=shadow-tech+agps
I was wondering if this fix has already been incorporated into all the cooked ROMs for the Vogue that have come out since March '09?

Is not only the GPS Files....

I can confirm.. that the GPS issue is not fixed only with the GPS Files from the leaked Rom. At least on my device..
I have tried both ROMS (Bionix and Twiz) and I'm never able to get a GPS fix unless I wait like 2 minutes for the first time and then I have to Open GPS Status (market app) to kind of wake up the GPS and then get a fix. I have tried several times and is always the same result... on the other hand... once I install the JI2 leaked ROM... I can get a GPS Fix in less than 20 Seconds in the first try, ALWAYS,, after that I can go to Maps and get a fix in less than 3 seconds every time. So, I'm sure that there is something else in the ROM that is fixing the GPS...

I installed the gps fix only and it was working pretty good for me where I live in Florida. However, tuesday I flew out to Ohio on business and it was pretty hit and miss there. Currently I'm in North Carolina and I can't get a flicker of a signal on the gps. Kind of disappointing after thinking it was fixed.

eortizr said:
I can confirm.. that the GPS issue is not fixed only with the GPS Files from the leaked Rom. At least on my device..
I have tried both ROMS (Bionix and Twiz) and I'm never able to get a GPS fix unless I wait like 2 minutes for the first time and then I have to Open GPS Status (market app) to kind of wake up the GPS and then get a fix. I have tried several times and is always the same result... on the other hand... once I install the JI2 leaked ROM... I can get a GPS Fix in less than 20 Seconds in the first try, ALWAYS,, after that I can go to Maps and get a fix in less than 3 seconds every time. So, I'm sure that there is something else in the ROM that is fixing the GPS...
Click to expand...
Click to collapse
I honestly think the exact same thing. I applied the gps fix from the leaked j12 update and it always takes 2 min to get a lock. After I reboot my phone, I always have to wait another 2 min.
Sent from my Samsung Vibrant

I get a fix in under 5 seconds - with WiFi off. The JI2 update fixes the compass which can and will mess up Navigation like Google Nav.
To play that broken record
Sats with SNR's below 17 will 1) Not Lock & 2) will show at 0 SNR with GPSTest regardless of what the reading is below 17. This means no GPS for you under poor GPS conditions. Other phones will lock with SNR's below 17 but the fix is less accurate.
Will not lock or it will take a LONG time to lock over WiFi. Disable WiFi for best performance... (odd bug here).

My GPS would just freeze up my phone, after applying the patch not only does the GPS work but i am usually connecting to 7-8 Sats out of 10.

BTW, I asked people in the Captivate forum to list their GPS settings after a successful update:
http://forum.xda-developers.com/showthread.php?p=8290175&posted=1#post8290175
There's a new address for the SUPL server:
- h-slp.mnc410.mcc310.pub.3gpp
Tried it and I can pick up satellites a bit quicker (subjective impression), but it doesn't really work for me.
Anyone else want to give it a shot?

Kubernetes said:
There's a new address for the SUPL server:
- h-slp.mnc410.mcc310.pub.3gpp
Tried it and I can pick up satellites a bit quicker (subjective impression), but it doesn't really work for me.
Anyone else want to give it a shot?
Click to expand...
Click to collapse
On the leaked Vibrant ROM, one tester I worked with had very bad performance when changing the server values (not to the address above, which I think comes from the new Captivate firmware, but to the old values floated on the forums weeks ago). After experimenting, he seemed to get the best results simply enabling MS Based mode and leaving those server details stock.
I have come to believe there is not much sense in amateurs playing with the SUPL settings. The operators of the SUPL servers seem to have a relationship with specific carriers, and I think there is some handshaking that goes on. I would advise leaving well enough alone.

GPS Issues on Desire HD - Considerations, tools and tips

I'd like to make a unique single thread with all the issues related to gps on DHD and the procedures/tips to make it work better.
MY EXPERIENCE
I was ready to go to dinner to my girlfriend's uncle (50km far away). I bought my DHD two days before. Ok, let's try gps. Google navigator. Started driving and my phone didn't get a lock. After five minutes of driving, i needed some help from navigator. Nope, still no gps lock. I stopped the car, got out with DHD in hand and lock again in two minutes with the sky in sight. No problem until destination. At the end of the dinner, on the road again. For the first 3 minutes, gps lock. Then lock lost, gps icon blinking and nothing. Tried to reload the phone. Fast boot first time and complete reboot the second time. I didn't stop the car this time, tried while driving (my girlfriend handled telephone while i was driving ).
It took 45 minutes to get lock again. Thanks god, i learned the route on the journey there.
The same thing happened again three times in the next days.
I thought that some software installed corrupted my phone.....(sorry, i was used to the windows mobile whims!!!!).
Hard resetted, but the problem was always there. Without logic, sometimes i had gps lock, sometimes not. Sometimes my DHD was keeping the lock until destination, other times gps lock was lost while moving.
GENERAL CONSIDERATIONS
Not all the people complaints about gps on DHD. I don't know why but there are many people who have problems using it. I think that, except for the faulty devices with defective gps chip, the behaviour is the same for all devices. Only the people perception about the performances of gps are different, and their behaviours of use. I had different expectations about gps. I was used to start driving without gps lock, my HtcHD would have always found lock in one minute anyway. Even if moving, even if many clouds or raining.
People who arrived to Android coming from Windows Mobile do experience a general lack of speed in locking gps position and a very different way about gps is handled by the OS.
My DesireHD hardly locks gps where my previous HtcHD locked gps in few seconds.
The same difficulties I have now with DesireHD, I had them too when I installed Android on my HtcHD. But I thought it was the unstable Android SD ROM's fault.
Another issue is the speed of hot start: DHD seem to have a very very short term memory in fact of gps. Hot start is really hot only if you reconnect within short time.
My HtcHD was able to reconnect in few seconds even if hours passed from the previous lock, if not moved.
My new DHD needs more time to lock, even if the previous lock was 30 minutes before. It happens to take 45 seconds or more to lock again if the sky is not completely in sight.
Even if I get lock with GPS Status, shutdown the program and I reopen it few seconds after, gps lock is not immediate. It takes almost ten seconds to lock.
I think I have to forget the Winmo performances in fact of gps, on Android.
(I think it's the only thing i'm gonna be missing, anyway......)
I think i'll have to wait for the lock before start driving from now.
ISSUES EXPERIENCED BY USERS
- DHD locks gps but when moving it loses the lock and it stays for minutes (from 10 to 60) looking for it again. -
Let DHD get an outdoor strong gps lock for some minutes before starting to move.
- DHD is unable to find a lock. Phone never ever locked gps, whether indoor or outdoor, with the whole sky in sight.
Try resetting AGPS data and let your phone get a lock without data connection, outdoor with the sky in sight on a plain stable surface
If you never ever succeed to get a lock, you should consider to have a faulty chip on your device. I think it's better to contact HTC Repair service.
- DHD behaves with no logic. Sometimes it finds a lock in seconds, sometimes it takes ages to find a lock.
Let DHD get an outdoor strong gps lock for some minutes before starting to move.
- DHD is unable to find a lock if any data connection is available.
Try resetting AGPS data e let your phone get a lock without data connection, outdoor with the sky in sight on a plain stable surface
TIPS
Do all of these steps. And, except for the first, try to do them all the times you use gps. And evaluate the improvements, if there are.
One time procedure:
- Force the phone to lock gps without any data connection and check APN type (see below for the link to step-by-step procedure).
It is important to put the phone outdoor on a stable and straight surface in order to get a strong lock, with a complete view of the sky.
My advice is to empty a-gps data BEFORE doing this operation (this can be done with GPS Status - Menu => Tools => MAnage Agps state => Empty data - The program is free and doesn't need root permissions)
Before every use of gps:
- Use FasterFix (needs root permissions) to change NTP server zone. The system/etc/gps.conf file contains parameters for NTP server and AGPS data. In mine i find that the ntp server used is located in northamerica. I live in Rome so I use Fasterfix to change it, forcing to use european ntp server. I don't know why but Android changes by itself this file, putting again north america server, so i have to change it more than once in a day to keep it using european server.
NOTE: Fasterfix gives back an error the first time you open it, choose the seerver and try to apply it. Only the second or the third attempt, it returns an ok result. Don't mind error. Don't worry about it. Even if returned error, it did its job anyway.
- Synch Device clock with atomic time. I use ClockSynch (needs root permissions), but every program capable of doing the same thing can be used. This is intended to help device in calculating your position. More accurate time means less corrections by the software, faster position calculating and a more accurate position.
- Let the phone get a strong lock BEFORE starting to move with your car. A couple of minutes before, you should let your phone on a stable surface, with sky in sight. Outdoor, obviously. Better if outside the car.
This thing could seem stupid, i know. But let your DHD get the lock in a place where it has a good view to the satellites. Let it acquire precision (you can see it in the left middle part of the screen, using GPS Status). Start moving only when precision has reached a minimum value (expressed in meters/feets - lower value, more accurate). You will see that gps lock will be more and more stable than before.
- Use a task killer program to kill all the processes which may use gps. I noticed that if one or more program able to use gps have been left opened in background, sometimes, without logic, something goes wrong and Gps receiver is no longer reachable by software.
In this situation if I open GPS Status, I see gps icon blinking, but in fact no satellites are seen by the program. I mean that on the screen is not shown 0/3 or 0/5 satellites. On the screen i see nothing about the number of sats, neither 0/0, empty. And in some situations this thing cannot be true (i.e. if i am completely outdoor with a perfect sky view).
RESOURCES
Gps lock without data connection: http://wccftech.com/2010/09/09/solving-gps-nofix-problem-cyanogenmod-6-nexus/
Gps Status: http://www.appbrain.com/app/gps-status-toolbox/com.eclipsim.gpsstatus2
FasterFix: http://www.appbrain.com/app/fasterfix/com.Double.FasterFix
ClockSync: http://www.appbrain.com/app/clocksync/ru.org.amip.ClockSync
Advanced Task Killer: http://www.appbrain.com/app/advanced-task-killer/com.rechild.advancedtaskkiller
EDIT: I have a stock ROM. Nothing upgraded. The only modification is the root access permissions granted with visionary.

Good thread, helpful and insightful.
I am going to download all those applications as I too have been experiencing Slow GPS lock.
Just 1 possible solution for you, have you tried to upgrade your radio? This may sometimes help solve GPS problems.
Sent from my Desire HD using XDA App

No, I didn't upgrade my radio.
I'd like to do it but i'm very hesitant to mess around with my phone like this.
P.S. Let me know if you had some improvements.

giegi_dc said:
No, I didn't upgrade my radio.
I'd like to do it but i'm very hesitant to mess around with my phone like this.
P.S. Let me know if you had some improvements.
Click to expand...
Click to collapse
Updated radio can make a MASSIVE difference. One of the best things you can do to your phone if you're having any kind of GPS / 3G / Wifi issues.
Go to:
Menu > Settings > About Phone > Software Info
Where it says Baseband Version, this is your radio version.

For me the most annoything that happens with GPS is that when playing a music and using at the same time an offline map gps program, when a voice or some ding dong sound happens, the music played stops and resumes after those gps sounds ends...
I think this is due to Android sys... even WinMobile it's better on this...

Thanks for the tips. My GPS is locking on very quickly now and even inside buildings. I used clocksync + GPS status + Fasterfix. Fixing to around 8 - 9 satellites indoors and 12/12 outdoors.

Done.
Great.
It Works!!!!
initially it would take me a good minute or two to acquire a precise location INDOORS, now it does it in 10-15 secs!!!!!!
i was already using GPS Status, this is with FasterFix.
Thanks.

so strange I never had problem with GPS, always fixes in less than 10 second and never loses as well.
I use iGO and it never let me down.

I had problem with gps-lock from the beginning.
Tried the link above "gps-lock without dataconnection"
Now it locks within seconds
Sent from my Desire HD using XDA App

Personally, I've had no problem with gps for apps such as Google navigation where the screen stays on.
It's a different story, however, for apps like cardio trainer where the phone loses gps lock when the screen is off. I understand this is a known issue with Android 2.2 and has been fixed for 2.3+. I don't know if anyone else has problems with this.
Sent from my Desire HD using XDA App

magnus66 said:
I had problem with gps-lock from the beginning.
Tried the link above "gps-lock without dataconnection"
Now it locks within seconds
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
but mine desire didnt work? first when take out the sim card ,reset and download data ..it work like charm..lock around 10 sec..then put sim card back it took age cant find satelite to lock..
anyone know what wrong?

On my DHD, indoors, GPS sucks badly.. apps such as "aroundme" its pretty useless, just hangs finding a signal. but outdoors when I use navigation, etc it works okay. I dont use GPS that much anyway, so cant complain. It is a tad annoying when your indoors and cant find stuff though.

I've had really big problems with my GPS.
Could not get a lock so I rooted my phone and upgraded the radio. Changed the gps.conf file and reset A-GPS settings and tried GPS without a dataconnection. None of the suggested things above did work, so I downgraded the radio to stock and unrooted my phone and sent it to a repair center.
Hopefully they will fix it.
I have a Hero (root) and a Desire (stock) and they get a lock on within seconds and works flawless even indoors.
I guess HTC has a lot of faulty GPS modules in their Desire HD mobiles, but not all are using GPS so therefore we only hear about some of the problems.

Trying the Nexus one fix as in the first post, after taking SIM out, I do not get any GPS signals on GPS Status, if I put SIM back in I get fixes but GPS unusable as it keeps losing connection whilst in journey. The steps I have taken so far are as follows:
* Take your SIM out of the Nexus One
* Power on the device
* Turn WiFi on
* Turn GPS on
* Open application: GPS Status (ver 3.4)
* Go into its Settings menu
* Click on GPS and Sensors
* Click Manage A-GPS state
* Click Reset
* Click Manage A-GPS state again
* Click Download [You'll see a message telling you that a data connection is needed, ignore it]
* Now put your phone on a stable, straight surface in order to enable the phone to get a lock, within GPS Status. This time, you’ll see your phone get the lock way faster than before.
Any help will be appreciated.

onesolo said:
For me the most annoything that happens with GPS is that when playing a music and using at the same time an offline map gps program, when a voice or some ding dong sound happens, the music played stops and resumes after those gps sounds ends...
I think this is due to Android sys... even WinMobile it's better on this...
Click to expand...
Click to collapse
quoting my self...
There's some developments about this issue...
Or one use the nice HTC Gps Software (at least the version that cames with gingerbread) or use the iGO Amigo.
I tried the iGO Amigo and I finally can listen to music at same time when the voice from iGo speaks!!! There's no interruptions at all like on the majority of GPS softwares that I tried on my DHD (don't know how it works on another devices)
I think that this issue is something that is only developers fault cause initially I thought it was due android design, maybe it was only possible to play something only from one app at a time. (ie. not play two things from two different apps simultaneous) but I figure that after all that is possible.
Bad developers!!!!

GPS Problems: finally the solution
Hi all,
Here I want to tell my experience with HD Desire GPS to help all those who were (like me) desperate.
The way to solve exists ! Read to the end to know how.
I bought my HD Desire in January 2011 (from Euronics in Rome - Italy) and after one week of use the problems began with the GPS.
It did not fix more ... but above all there were more than 1 or 2 visible satellites ... even in open sky, in good conditions, even outside for 30 minutes.
The phone was obviously still immaculate (without root and with the original ROM and RADIO) then I went back to the shop where I bought ... and using GPS-Status the seller has found that actually did not work.
Very kindly he changed my on the flight the phone ... I installed GPS-Status on the new phone just replaced and now everything works fine (fix in less than 10sec and 7 / 8 satellites visible).
I came at home and for 2/3 days it worked wonders but soon it began again with the same GPS problems.
No more fix and at maximum 2/3 satellites visible.
Building on the fact that the phone had been replaced and ... GPS Status actually had made a fix in less than 10 seconds ... (When I had replaced) ... I said, Sure ... is certainly a software problem and not an hardware one ... because the phone is a new one.
So I did a factory reset ... reset all settings as the original ... and retried. Nothing.
The GPS was dead for the second time in two weeks.
Then, I began a careful search on various forums (both Italian and international).
I've tried everything ... really everything ... but nothing. It does not work !
Tried GPS-Status (A-GPS Reset, Download), then fasterfix (it.pool.ntp.org) then I started to change ROM (root, S-Off and ENF S-Off), then I tried all possible Radio and RIL in all combinations. Sometimes happen that the fix was very fast and this gave me the illusion (temporary) of having finally found the solution. However, on time (sometimes even after a few minutes) the problem returns back!
I also tried to clean the contacts of the GPS as shown in this video on youTube(h**p:/*w*wdotyoutubedotcom/watch?v=7qm_z65LA8k).
At the end ... after 4 months of trying all... I sent back in warranty the phone to the HTC service (S-ON and leave to unroot because it was under warranty).
After 10 days of impatient waiting, HTC gave me back the phone and say that the GPS was faulty and had been replaced.
I redid a restore using Titanium Backup Pro ... restoring back all in the exact same conditions I had when the GPS was not working.
Now everything works wonderfully !!!
Im using the original ROM (RUU 2.36.405.8), original Radio (12.54.60.25U_26.09.04.11_M2) and the original Kernel (2.6.35.10-g0956377).
Fix in 10/20 sec (everytime), with at least 7 / 8 satellites (tested for several days now).
Moral of the story ... There are lots of HTC Desire HD phones (probably the first stock) that today are still in the form of stocks and inventories in some shopping malls / shops with the GPS module that is broken !!! (it works for a few days and then no longer works).
The only way is to send back your phone in warranty and ensure that GPS module is replaced (having first restored with all unroot and S-OFF as otherwise the warranty does not apply).
Believe me ... if you have tried everything ... this is the only way!
Now I'm an happy HTC Desire HD owner (with Gingerbread) with a GPS which is a splinter.
Im currently using Navigator, Google Maps, CoPilot and everything works great !
I hope this post may help and comfort those who are desperate and can not run the GPS on the Desire HD.
Greetings to all.
Andrea.

[Q] GPS freezes phone (w osmand,maverick)

Hello wise xda guys.
Any ideas why my hd2 freezes after some time, when I use gps with osmand or maverick (or a couple of other software I tried before and unistall). It freezes completely, and I have to remove the battery. While it is working (before freezing) everything works fine.
[Another symptom (maybe irelevant) is the very slow gps fix (the first time), which deosn't really bothers me (I'm a patient person). I'm just writing it here because maybe there is a relation]
I use: Froyo 2.2.1, mod: Cleandroid 2.55, MAGLDR 1.13.
Otherwise the telephone is more or less stable
thnx

Same issue it seems...
Going to re-flash WinMo and test there.

I'm having the exact same issue lately and it is not funny/safe at all.
I first had it happening in google navigation all the time and now in iGO and Waze.
Can this be from Rafpigna's undervoltaged kernel or be a hardware issue?
Unfortunately the device freezes completely and doesn't give any error.
Does a log exist somewhere?
Any help is more than appreciated!

Yeap, still the same problem and I can't figure out why.
I've tried more than 10 different apps, but allways the same. After some time the phone freezes. I remove the battery, start the app and after a while, the same.
I tried working with battery only or with car charger only, still the same.
I removed and brought back all my apps with titanium backup, still the same.
I have a suspicion that when it stacks and after rebooting, if I leave it in peace (I mean don't do anything with the phone, just keep it without running any app), for some time (10-20 minutes), then it starts and keeps the gps app more time, than the time of the initial freezing. Maybe this is a symptom that could ring a bell to an experienced guy...
Anybody, any ideas?

I think mine is related to heat.
Left it in my pouch and placed iGO in demo on a long roadtrip. After 15 minutes the phone was warm and the screen was frozen so I had to get the batt out again.
More than frustrating since I have a 700km trip to do on Thursday.

Not sure about the heat
I had the same suspicion, that the heat was causing the freezing ) funny language ah?).
So I tested it while keeping it cool (I protect it from the sun and remove the car charger), but still the same happened. After some time it froze again. (the phone was cold)
I have a suspicion that a possible reason is the rendering of the maps. I've noticed that I have the problem, mainly when driving a car, where the maps images should change more often. I kept it in my pocket and made a few hours trekking, with no problems. Though in my pocket I had the app running in the background and I only open it a few times, just to add some points on the map.

Another sister thread
There is also this thread, by Crash-nl, with the same subject (more or less) so we can combine powers.
Check it out
http://forum.xda-developers.com/showthread.php?p=12391898

I'm also having GPS freezing issues, but probably way worse than you guys. I just got my phone from service center, but the issue still exists. I just quote my comments from an another topic:
I've now got back my HD2 from the service center. The GPS is now working, but not in Android. When I was using WinMo 6.5 with WWE 3.14 and 2.15.50.14, the GPS worked great. Fast lock, TomTom worked well and Google Maps worked fine. Then I decided to get Android again and after I installed everything, I discovered, that I had the same exact issue like prior the repair. The GPS starts looking the signal, if it doesn't find it, nothing bad happens, but when it does find the signal, it causes the phone to freeze. Instantly after the signal is found, it causes instant freeze. Screen stays on, nothing happens. What can cause this? I haven't yet tampered with the gps.conf settings, but I don't even think that it could fix the issue. I'm really going crazy with this.
Yeah, I'm thinking also its a driver issue. My current Android build is RAFDROID 4.0.2. And since this issue seems to be exatly the same, like before the repair, the GPS probably doesn't work in the earlier versions of RAFDROID. However something has changed in my phone, because the GPS has worked with nand Android builds in the past and even with RAFDROID 3.0. Now however, it doesn't matter which build I use, the issue always exists. Could it be caused because of the GPS module? I mean, does the WinMo 6.5 QuickGPS app save the AGPS data directly to the GPS module? So could there be some kind of corruption in the GPS module? I was having some sudden reboots, while using Google Maps and TomTom in the WinMo, but I was able to fix them, by hard resetting the device.
First time I started having this issue was, when I updated from RAFDROID 3.0 to 3.1. After that, the GPS has always caused instant freezing, when using GPS in the Android. Even downgrading back to 3.0, didn't solve the issue. Now I'm having this issue with all Android builds.
It's possible that my GPS module or "chip" could be somehow broken physically, but it's no point sending the device back for repair, because they send it back and say, "there's nothig wrong with the GPS". I'm really hoping it's not a hardware issue, because if it is, there's really nothing that can be done. I have still about a year left from the warranty and changing the module myself, will void the warranty. I just cannot understand why does the GPS still work in WinMo, but not in Android? Because if the module was somehow broken, should the GPS be defective also in WinMo?
I have tried flight mode, Wifi and 3G off etc. and the GPS DOES WORK. So the chip is not dead.

Just did some more testing on mine to try to find the issue.
I have always had a freez when I used google navigation with the sat image from the start in Android. But last week it happened in iGO and Waze which scared me a bit.
As a matter of test I installed WinMo again last night. Fantastic OS btw! and installed iGO.
Everything was up and running at 2am and I decided to let it do a demotrip of about a 1000km. The demo also sets the GPS receiver active.
I placed the HD2 it next to the fan of my laptop which is always on to generate some extra heat.
This morning at 10am the demo was still running perfectly.
Just reinstalled Android on it again. After 3km's in iGO 'gps signal lost' . I cannot get it back in any way. The GPS symbol is stuck in the bar above even if you disable GPS in the settings. So reboot is the only way.
This is getting very frustrating for me since my phone needs to work as GPS and may not fail.
Also a funny one is that it doesn't seem to matter on mine if the gps.conf file is on there or not ;-) lock time when the hd2 works is approx 1min

lukesan said:
Just reinstalled Android on it again. After 3km's in iGO 'gps signal lost' . I cannot get it back in any way. The GPS symbol is stuck in the bar above even if you disable GPS in the settings. So reboot is the only way.
This is getting very frustrating for me since my phone needs to work as GPS and may not fail.
Click to expand...
Click to collapse
I'm having this same exact issue! However I just discovered that the local service center did not change the GPS module or antenna. So this might be the reason why my GPS doesn't work. The service center was fooled that the GPS works, because they didn't test the GPS thoroughly. YOU HAVE TO ENABLE FLIGHT MODE OR TAKE THE SIM CARD AWAY TO TEST THE GPS!. If you don't do this, you are being fooled believing, that your GPS is working, but it's not.
You guys should test your GPS, by going back to WinMo 6.5 and leave your sim card away from the phone. If your GPS can find the signal even without the sim card, congrats, your GPS is working. If you want to be double sure, enable flight mode and try again. If your GPS cannot find signal, your GPS module and/or antenna is broken and needs to be replaced.

Well my module is working.
Easy way to test it and no need to take out your sim or so.
Just use the cab file attached to this post. If you will start it the first time it will scan the ports so you can end up with a small error in regards to BT but it not a real error.
The tool will continue to com port 4 where the gps mod is active on.
Go stand outside and voila, mine starts to show bars like it should be.
I'm taking a different approach now.
Ckeared everything and also took a fully fresh formated sd-card .... (as I type now not working)

lukesan said:
Well my module is working.
Easy way to test it and no need to take out your sim or so.
Just use the cab file attached to this post. If you will start it the first time it will scan the ports so you can end up with a small error in regards to BT but it not a real error.
The tool will continue to com port 4 where the gps mod is active on.
Go stand outside and voila, mine starts to show bars like it should be.
I'm taking a different approach now.
Ckeared everything and also took a fully fresh formated sd-card .... (as I type now not working)
Click to expand...
Click to collapse
Thanks! You just saved my time a lot! I downloaded and installed that app and I was able to get a succesfull GPS connection and now I can even get GPS lock, when flight mode enabled or sim card removed. This was impossible before installing this app.
However it seems that we are both suffering from the same issue. GPS does not work for me in Android. It has worked in the past, but nowadays, it doesn't matter, which Android build I use, it either freezes the phone and only way to fix this, is by removing the battery or it doesn't find the signal at all. Sometimes the GPS stays on, even if I turn it off. The blinking GPS icon goes away only by restarting the device.

If you are using gps navigation software on sd card, try format micro sd card with FAT32 and DEFAULT ALLOCATION SIZE option, do not choose allocation size such as 32,64 or any other except DEFAULT.
Try it and GL.

colosos said:
If you are using gps navigation software on sd card, try format micro sd card with FAT32 and DEFAULT ALLOCATION SIZE option, do not choose allocation size such as 32,64 or any other except DEFAULT.
Try it and GL.
Click to expand...
Click to collapse
Did anyone try this method? Looking at other threads I see people saying that only a warranty repair will fix the issue.

freezes
Hi. I had the same problem, i try everything formating sd, different builds and kernels. I disable "use wireless networks" and GPS work with no freeze.
Do you have a freezes on games?

did any one found the answer ?
is it a hardware problem ?
or a software ?

Thought I'd throw in that I'm having the same problem running hyperdroid rom on a telstra hd2. GPS finds a lock, works for about 2 mins then freezes requiring battery to be taken out to restart. I'm leaning away from a hardware issue as copilot worked perfectly on the same phone when I was running windows 6.5...

Just an update, after installing the new GPS fix from this link http://forum.xda-developers.com/showthread.php?t=1100114
[28.May.2011][Dev] GPS Libraries v1.0 for HD2 Gingerbread the GPS freezing problem is fixed. Full credit to the developer
Sent from my GT-P1000 using XDA Premium App

But the problem still occurs when using Google maps, Google navigation is now fixed
Sent from my GT-P1000 using XDA Premium App

Hi all,
I'm facing the same issue reported in post #12. I'm actually using latest Rafdroid HD (Froyo Sense) build on SD. Do you think I can try the fix in post 18, also if it is for Gingerbread builds? Please advise.
Thank you.