Develop Bugs

Problems with 02 Orbit and Copilot

I've been having problems with copilot - it fails to acquire any satellites until I soft reset; then it works fine. A couple of days later I try using copilot again and the same thing happens. Anybody got any suggestions (other than use TomTom which I found was much more useable on my last XDA)?

are you updating the quick gps software every 3 days ? that may help but doesnt sound good enough

no - i'll give this a try, but it shouldn't stop it acquiring a fix even if it does take longer - I've waited for at least 10 minutes which is how long stone age GPSs used to take...

I definately think it's Co-Pilot verifiying the NMEA data that gets sent down. It's good because it ensures you don't get eratic positions (or most of the time anyway), but bad because as you've found out it takes a while longer to aply a fix. Can't really recommend anything other than to ensure QuickGPS is upto date.
Put it this way, the GPS program we wrote at work I've tried on my Orbit and I can get a signal lock in about 4 seconds with a pretty damn close position of where I am, so it's definately not the hardware (unless it's your particular phone).

I have a theory about why GPS on TP2 cannot fix satellites quickly

Or, in my case, cannot get a fix at all in most places.
The only place I can get a fix is an ideal spot near my office, in an elevated garden (on top of a shopping arcade). With nothing taller than me in a 10m area, and nearest buildings only two or three stories high, I can view 16 satellites and immediately get a fix on 8 of them. In all other places, no matter how long I wait, will see 16 satellites with 0 fix.
With more testing I found out to get a good signal strength in normal situations, I have to do either of these:
1. Enable flight-mode (i.e. turn off all other wireless communications).
2. Slide out keyboard.
Doing both will give me a fix within 5 seconds in all out-door or near-window locations. Just enabling flight-mode results in less than 20 seconds. Sliding out keyboard has a lesser effect, but usually will get a fix within 2 minutes.
I used HTC GPS Tool and NaviComputer in the tests.
With HTC GPS Tool:
- Flight-mode OFF and keyboard in, in the ideal spot I get about 50% signal strength for the best satellite.
- Flight-mode ON, signal strength goes up to 80%. Sliding out keyboard has no observable effect with flight-mode ON.
- Flight-mode OFF and keyboard out, I get about 60% for the best satellite.
So it seems the true reason is the GPS antenna in TP2 is poorly located, getting interference from phone antenna and the machine itself.
If you own a TP2, could you test it and tell me the results? (should observe stronger signals even if you don't have a problem)
If most people get same results as me, I'll send a report to HTC. I absolutely love QWERTY keyboard on my TP2, and my next model will definitely have one. I want HTC to learn about this problem (or acknowledge it) so future QWERTY models won't have the same defect.
Thank you in advance for your time to perform the tests.

good test, strange result

Well I never have gps issue with my tp2 so I don't understand your problem

It also depends a lot on which radio you use. Some radio's give you a faster fix and some don't.

drewcam888 said:
Well I never have gps issue with my tp2 so I don't understand your problem
Click to expand...
Click to collapse
As I said in the first post, I observed improved signal strength with either flight mode on or keyboard out.
Even if you have no GPS issues, you may still get better signal strength if you perform the test. You can view signal strength with HTC GPS Tool. That's all I ask of the community - to see if TP2 has a design defect that weakens GPS signal reception.
Lennyz1988 said:
It also depends a lot on which radio you use. Some radio's give you a faster fix and some don't.
Click to expand...
Click to collapse
I'm using this Radio from HTC - version is 3.46.25.30. The HTC Diamond 2 I mentioned in the first post has an even older radio version, yet receives signals better than my TP2 does, until I enable flight mode or have keyboard out.

im using the latest radio and i get a fix in a few seconds. it took ages on other radios. its very deja vu with the touch pro. the gps sucks up until a certain version of the radio.

I logged the NMEA data with HTC GPS Tool, and without flight mode and keyboard out, most NMEA sentences contain blank fields. GPGSV reports 16 satellites, but GPGSA will report status 1 (no fix available). Also GPRMC failed to return time.
If I slide keyboard open, I could see more data fields - GPRMC returning time for instance. I'm pretty sure sliding out keyboard or enabling flight mode have no effect on how the radio driver interprets GPS signal received.
The Jack of Clubs said:
im using the latest radio and i get a fix in a few seconds. it took ages on other radios. its very deja vu with the touch pro. the gps sucks up until a certain version of the radio.
Click to expand...
Click to collapse
Could you tell me your version, is it official? Where did you get it (I assume here in XDA? I've seen plenty of custom radio ROMs)?

Evilnut said:
I logged the NMEA data with HTC GPS Tool, and without flight mode and keyboard out, most NMEA sentences contain blank fields. GPGSV reports 16 satellites, but GPGSA will report status 1 (no fix available). Also GPRMC failed to return time.
If I slide keyboard open, I could see more data fields - GPRMC returning time for instance. I'm pretty sure sliding out keyboard or enabling flight mode have no effect on how the radio driver interprets GPS signal received.
Could you tell me your version, is it official? Where did you get it (I assume here in XDA? I've seen plenty of custom radio ROMs)?
Click to expand...
Click to collapse
You can get the official radio's here. (There are no custom radio's) http://forum.xda-developers.com/showthread.php?t=549939
Just try some radio's for yourself. There is no best radio, because it depends on which place you are etc. So what works best for me is not necessarily the best for you
ps you need to have hardspl installed.

you will not be able to connect to all those sats no matter what equipment you have. in total "There are 30 GPS satellites" so I AM GUESSING here. that there are around 15 on each side of the earth. and if you divide it for the top of the earth and the bottom that leaves 7.5 sats so if its showing 16 there must be one extra uneven one in range. so that makes 8 connectible to. im pretty sure that you cant connect to a sat thats on the other side of the earth. or on the bottom.
but thats just my research and my thoughts. i could be wrong. but i dont think i am.
so in theory you should only be able to connect at 8 sats in any one time. OR it could just be that out of the number of sats your connected to. if any other were added it would give you a wrong position

to lock on satellite with the htc gps tool takes about 1 minute with data communications on . in airplane mode it takes about 5 seconds. this is consistent for me.
htc tp2
tmobile
wm 6.1

I've tested several Gps apps both on Winmo and Xdandroid.
Something is sure: apps make the performances
On Android, Google Navigation is 5 time slower than Navigon (same place same conditions of course)
On Winmo Waze is 10 time slower than Tomtom and lost the grid even with good conditions.

In the UK GPS works fine from my car, inside not so good. It's better in open not urban areas.

littlebigtux said:
I've tested several Gps apps both on Winmo and Xdandroid.
Something is sure: apps make the performances
On Android, Google Navigation is 5 time slower than Navigon (same place same conditions of course)
On Winmo Waze is 10 time slower than Tomtom and lost the grid even with good conditions.
Click to expand...
Click to collapse
I will at times have both my TP2, 6.5, iGo8 right next to my Asus R600 (standalone GPS) and the Asus will fix a satellite within a few seconds, while the TP2 usually takes a good 2 or 3 minutes.
I always attributed this to the type of receiver and antenna, but that's just speculation on my part.

FoneWatcher said:
I will at times have both my TP2, 6.5, iGo8 right next to my Asus R600 (standalone GPS) and the Asus will fix a satellite within a few seconds, while the TP2 usually takes a good 2 or 3 minutes.
I always attributed this to the type of receiver and antenna, but that's just speculation on my part.
Click to expand...
Click to collapse
With QuickGPS data, my TP2 gets a lock within seconds, even indoors.
You MUST keep this data up-to-date, lest lock times suffer.
Also, thread necro... closed.

[Q] GPS problems. Can't get a fix!

Hi all,
I have the Desire HD for 2 weeks now but I've only yesterday noted the gps doesn't seem to work... It's a complete stock model, no custom roms or radio's. I'ts just never able to get a fix! Are there other people with problems like this? Could my device be broken?
I have installed a app from the market that tests the gps and it finds no satelites most of the time except one time I checked it found 4 with a very bad signal... Even then in Google Maps or the HTC Locations it didn't get a fix.
Any ideas?

Bump! I have exactly the same problem. Any Advice?

same problem

i HAD this problem, but then i left the GPS on for an entire journey. 45 minutes later it had a fix and ive never had any problems getting a fix within a minute since.
i dont think the phone knows what side of the globe its on the first time, so maybe it just needs a loooong time the first time.

Most GPS devices need to download a file known as an almanac. This determines where satellites will be at specified times.
This file can take a while to download as GPS is purely passive. I'm not sure if the DHD is A-GPS (Assisted). This will download the almanac via mobile or wifi data.
This is why sometimes the first GPS lock can take a while.

Try these two programs:
http://www.appbrain.com/app/gps-status-toolbox/com.eclipsim.gpsstatus2
http://www.appbrain.com/app/gps-test/com.chartcross.gpstest
First one is great for diagnostic so it should tell you what is wrong.

I also have the same problem, been driving for about 30mins and nothing..
Sent from my Desire HD using Tapatalk

andyharney said:
Most GPS devices need to download a file known as an almanac. This determines where satellites will be at specified times.
This file can take a while to download as GPS is purely passive. I'm not sure if the DHD is A-GPS (Assisted). This will download the almanac via mobile or wifi data.
This is why sometimes the first GPS lock can take a while.
Click to expand...
Click to collapse
Ok......DHD has A-gps as well
seeing your posts, quite amazed how you did not know this (no pun intended)

dzn said:
Hi all,
I have the Desire HD for 2 weeks now but I've only yesterday noted the gps doesn't seem to work... It's a complete stock model, no custom roms or radio's. I'ts just never able to get a fix! Are there other people with problems like this? Could my device be broken?
I have installed a app from the market that tests the gps and it finds no satelites most of the time except one time I checked it found 4 with a very bad signal... Even then in Google Maps or the HTC Locations it didn't get a fix.
Any ideas?
Click to expand...
Click to collapse
1st gps-fix is a pain, after it will all get better....search for my posts, you'll see that this has been asked several times (don't want to be a b**ch but, please use the search button as well) and in general, 1st fix takes some time, 2nd is fast (like <2 min).
At this moment, while I thought my gps fix was very bad (and as I own one, if not the, of the 1st DHD batches, it was not abnormal to think that it also had gps probs) it now fixes within 1 minute....

Problematic piece of device for me for GPS.

Got mine a cpl of days ago , downloaded the apps above but still nothing i will give it one more try.
Sent from my Desire HD using Tapatalk

kermez said:
Try these two programs:
http://www.appbrain.com/app/gps-status-toolbox/com.eclipsim.gpsstatus2
http://www.appbrain.com/app/gps-test/com.chartcross.gpstest
First one is great for diagnostic so it should tell you what is wrong.
Click to expand...
Click to collapse
I tried both GPS apps. And immediately after that, I was able to get GPS satellite lock on within 20s.

Guys regarding the GPS, all of us we face an issue. It can not lock the satellites quickly. Especially for the people like me who are HTC HD2 owners as well. I was waiting only few seconds. (cooked rom). We MUST forget that now. It's an issue for all of the android devices. Even with the device of the Nexus. So we must live with that. Sometimes it will lock the satellites in 1 min or 30 secs, some other time in 2-3 mins. I searched also in the internet and i found so many complains regarding the GPS and hopefully not only from DHD users

f9cator said:
I tried both GPS apps. And immediately after that, I was able to get GPS satellite lock on within 20s.
Click to expand...
Click to collapse
Yep, I had also that problem but then red at forums that only way to lock as fast as you can satellite is to use first one for locking over internet and after that it's much easier to find satellite. Whenever you have problem with locking or need gps asap first program should provide you with fast satellite find.
Btw gps on dhd is so good that I have sold my old garmin - simply it's obsolete and now I have only to purchase official car holder.

Most of the times is more difficult to get a fix in a speeding car.
In the opposite case is generally faster to get a sat fix.

So I've been using my DHD for 3 weeks now (stock model as well, no root) and here are two issues with GPS that I noticed and have no idea what to do with it.
1. The same problem as described in first post. Every once in a while my GPS just cannot get a fix. I installed GPS Test app. Normally it finds around 6-7 satellites, they are all in use, the yellow indicator in GPS status bar goes green and my location appears on mini-map.
However there are situations when GPS Test says that there is 1 to 5 satelites in view, later on they also apper to be in use, but GPS status doesn't change to green and my actual location doesn't show. It's not a problem of visibility or my location - the GPS can get a fix today and not work tomorrow at the very same place.
I have no idea if this can be fixed, so any help appreciated.
2. This is not really an issue, just something that I find quite disturbing. I'm using this traffic app (Yandex Maps for those of you in Russia). It shows current traffic condition on the map + your current location if you have GPS. So each time I lock my DHD (press the button on the top) the GPS is immedietly switched off. So when I unlock the screen to see the map again it takes from few seconds to a minute or even more to update my current position. Sometimes it doesn't happen at all (see problem #1). I understand it's probably done to save battery but I would prefer continuously working GPS than saving battery. Is there any way to set GPS to always working mode?
Thanks in advance to everyone who can help. Cheers

Hi,
I read all you guys said and after trying both the apps and refreshing my agps data manually I now get 6-7 satellites which is good I think?
So for all of you with the same problem, just stay outside for a moment and make sure you have a data-connection. Then use the GPS Status app and refresh your agps data manually. It should work... It did for me!
Ps. I think my Desire, not the HD, used to see 11 satellites? Is that possible? Does this mean 6-7 is kind of weak?

dzn said:
Hi,
I read all you guys said and after trying both the apps and refreshing my agps data manually I now get 6-7 satellites which is good I think?
So for all of you with the same problem, just stay outside for a moment and make sure you have a data-connection. Then use the GPS Status app and refresh your agps data manually. It should work... It did for me!
Ps. I think my Desire, not the HD, used to see 11 satellites? Is that possible? Does this mean 6-7 is kind of weak?
Click to expand...
Click to collapse
Just to make it clear - to manually refresh AGPS using GPS Status - you need to go to Menu->Tools->Manage A-GPS state->Download?
I'm not outside now, but will try it once I have problems getting a fix.
And yes, 11 sats is possible. 6-7 is more than enough though.

Stand still to get a fix? Harder when you are speedy, I think.
Sent from my Desire HD using XDA App

Your movement speed has no impact on how quickly you get a lock. Remember, these satellites are in orbit traveling alot faster than your 30 - 70mph.

GPS/Navigation problem... app, mobile or something else?

Hi, I'm really not sure what to make of this problem so maybe you can help me out pinpointing the problem so I can take care of it. I've observed several things and don't know how to connect the dots, or if there's any connection, so let me list what I've been seeing:
1 - I've got TomTom to use on my car.
2 - Worked wonderfully well on the first week or so. Fast to lock onto satellites (10 to 20 seconds), accurate and stable without loosing the lock.
3 - I've noticed from day one that it tends to to locate me a few meters back than what I'm actually am, so if I come about two streets very near one another, the turn on the correct one is a bit hard to to tell without looking at the map.
4 - A week ago, the phone started to take longer to lock my position and won't keep it, it often loses connection with the satellites.
5 - Also, the problem is a lot worse if I stop. It might be accurate while I'm driving over 50mph but, if I stop, the direction I'm facing is lost and then my location. It will place me within 50m to 100m of where I am, which could mean on another street. It has become useless for the slow paced city driving, with red lights and slow traffic.
6 - I haven't changed ROMs or anything major but I have downloaded a few apps, might have taken a few others out, the usual stuff... I'm using Android Revolution HD 31.2.
7 - I've noticed that a lot of times, in regular mobile use, the GPS icon shows up trying to locate my position, even with GPS off. Might be that I have accepted Google's location request or is embedded on some app. Don't know if this has any relation to the workings of navigation or with the timeframe the problem occurred.
8 - A final though... I've always had this problem with standalone GPS devices... They work fine for a few weeks/couple of months and then they seem to deteriorate, having a hard time to locate my position, maintaining a good connection, etc. I have no idea on why this is or if there's some sort of cache I should be cleaning.
Oh, and this happens regardless of the weather... overcasted, rainy days or clear skies, it's all the same.
So any thoughts on how to pinpoint the source of the problem so I can fix it?
Cheers!
Renato

Anyone?

Help me fix my E980 GPS

I've tried literally everything that I've been able to come across with searching.
As a last resort, I went back to stock, using the TOT file. I'm currently on Android 4.4.2, Software Version E98020h
I have root, but no other modifications have been attempted.
I have gone through all different types of gps.conf files with little or no difference.
GPS Test Plus shows around 10 - 15 satellites in use normally but sometimes this will drop to 0 and then build back up. the SNR of the satellites is usually 10 - 20 which I assume is signal strength. I can keep a lock for a couple minutes sometimes but then I lose signal and won't get it back until I open GPS Test.
I've been fighting this for a long time, any help would be wonderful.

I thought I'd bump this to see if anyone has any ideas.