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I'm going to be travelling internationally soon and would like to preload my QuickGPS for both the USA and Europe - will a "normal" QuickGPS download do that or do I need to do something special?
Mainly I'd like to avoid having to connect to the network in Europe on arrival to get a solid GPS lock.
Are there any good descriptions of specifically how QuickGPS works?
TIA,
Richard
assuming its the same quickgps as the one in the 6915/45/25 - it works great in any part of the world. all automatic no tweaking required.
djmaven said:
assuming its the same quickgps as the one in the 6915/45/25 - it works great in any part of the world. all automatic no tweaking required.
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Sorry, I wasn't clear. Will running it in the USA provide the data for being in Europe?
I accept that runnning it in Europe would likely get the appropriate local data, but I don't necessarily want to pay $.02/KB to download data when I get to Europe - though that wouldn't be the end of the world.
Kinda curious, that's all.
Richard
rsolomon said:
Sorry, I wasn't clear. Will running it in the USA provide the data for being in Europe?
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u just made it worse
xbox360 said:
u just made it worse
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LOL. OK, one more try It's probably a stupid question...
QuickGPS downloads satellite data, right? Does it download ALL the satellite data, or just the ones it thinks are near you? I.e. if I'm in the USA will it only download the birds near me or *ALL* the birds? Thus if I download "fresh" QuickGPS data right before I leave the USA will I get quick acquisition in the USA on departure *AND* quick acquisition in EU upon arrival? or would I have to run QuickGPS and download once I got to EU in order to get the quick acquisisition?
Richard
Good question. I am not sure since I don't remember if I did aQuickGps before using it in Europe. However logic says a US download should be OK for the whole world since the download is Internet based and when the phone pulls the data, the internet does not know where its located (if it would know - who needs the data?) so it should be worldwide.
Don't worry, there are only 24 GPS satellites orbiting the Earth and you get their positions all at once every time you use QuickGPS
I think the quikGPS picks up data by detecting where your gps receiver is located, so it work worldwide.
kms
barmalini is right regardless of where you are located it downloads all the predicted ephemeris data for the satellites of the GPS constellation, you can read more about "offline AGPS" here -> http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=47602
Although no one has really answered the OP's actual question - namely will running quick GPS in the US before flying to Europe help his GPS to start up quickly in Europe?
The quick answer is NO. QuickGPS gets info from your device as to its current location (from Cell towers). Thus if you run quickGPS in the states, it will tell your GPS that you are in the states, even if you then fly to europe.
If the OP wants a really fast GPS start up in europe, he will need to run QGPS when he arrives. If not, he can simply run any GPS enabled app on his device and wait for it to acquire a fix (although as previously discussed, Google Maps times out really quickly... but if data costs are a worry then he must be using a GPS app with maps preinstalled on the device).
We did answer and if you had read mine and/or followed my link you would realize that the content of the downloaded data has no connection whatsoever to cell towers.
So yes, since the data is the same worldwide, data downloaded in the US will help when you arrive in Europe, KEEPING IN MIND that you are no longer doing a "warm fix" but a "cold fix" due to the distance covered so i(for an open sky environment) instead of 5/10 seconds for warm fix it might take 20/25, still better than the 40/45 without QuickGPS.
GpsPasSion said:
barmalini is right regardless of where you are located it downloads all the predicted ephemeris data for the satellites of the GPS constellation, you can read more about "offline AGPS" here -> http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=47602
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That's what I *hoped*, but the registry for QuickGPS contains a number of "region" keys: e.g.
[HKEY_LOCAL_MACHINE\Software\HTC\QuickGPS]
"curRegion"=dword:00000002
"region"="US"
so I was concerned the data might be somehow specific to the location I downloaded from.
Richard
P.S. @GpsPasSion - good to see you over "here" on xda-dev, I should have thought to check your site I suppose
GpsPasSion said:
So yes, since the data is the same worldwide, data downloaded in the US will help when you arrive in Europe, KEEPING IN MIND that you are no longer doing a "warm fix" but a "cold fix" due to the distance covered so i(for an open sky environment) instead of 5/10 seconds for warm fix it might take 20/25, still better than the 40/45 without QuickGPS.
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I'll try and remember and do some timed testing - my recollection from my SirfStarIII-based BT338 was that a few minutes were required for the first fix after landing, but I never timed it accurately.
Richard
unwired4 said:
The quick answer is NO. QuickGPS gets info from your device as to its current location (from Cell towers). Thus if you run quickGPS in the states, it will tell your GPS that you are in the states, even if you then fly to europe.
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I'm not quite sure I understand this response. QuickGPS downloads the ephemeris data for the satellites, which tells the phone where all the satellites are, and are expected to be for the near future. It's the same data the phone would get from the satellite, but the satellites transmit this data fairly slowly (and you only need signal from one satellite... each satellite transmits the ephemeris data for all 24 satellites). Regardless of where you and your phone are, the satellites are where they are. Why would QuickGPS care about your current location?
Guys....i know this is not related but when you guys say that one can get a faster fix after downloading the data using QuickGPS, how much faster are you guys taking about? Reason i ask is cos i can download the latest data using QuickGPS then launch Mapking, it still takes between 10 - 15 minutes for me to get a fix (i would probaby have reached my destination by then). Am i missing out something here cos i believe somebody said 45 seconds
oh yes, there is something wrong, I put some numbers above.
Now if you have a coated windshield, are moving and the Kaiser is on the passenger seat then you're asking for trouble !
@dscline - you must have missed some of the replies, QuickGPS data is location independent ;-)
GpsPasSion said:
@dscline - you must have missed some of the replies, QuickGPS data is location independent ;-)
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heh, yeah, his post was at the bottom of the page... when I replied, I didn't realize there was already a whole other page with posts debating that statement.
GpsPasSion said:
oh yes, there is something wrong, I put some numbers above.
Now if you have a coated windshield, are moving and the Kaiser is on the passenger seat then you're asking for trouble !
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I just tried it again. This time, i just put the Kaiser on top of the car and left it there....i finally got a fix after 9 minutes. Now....izzit easier to get a fix on the move on when still?
Is there any other software apart from QuickGPS that will help speed up the fix? I tried GPSProxy but got and error when trying to add virtual port so i drop that I would really appreciate any advice cos i use the GPS almost everyday and it's really frastrating to have to wait 10 minutes before getting a fix
Scann69 said:
I just tried it again. This time, i just put the Kaiser on top of the car and left it there....i finally got a fix after 9 minutes.
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Where are you? Unless you're in an urban canyon or under dense tree cover I cannot imagine 9 minutes to first fix.... Should be under a minute.
Richard
rsolomon said:
Where are you? Unless you're in an urban canyon or under dense tree cover I cannot imagine 9 minutes to first fix.... Should be under a minute.
Richard
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Nup....i'm under open sky and i'm in Kuala Lumpur, Malaysia. The thing is, i know that cold start can take longer time and even so, 10 minutes is just way to long and what's worse is, i was using the GPS like 5 hours ago and i just tried it again and still it took 10 minutes to get a fix. I seriously think i'm missing something here
I'm going abroard where data costs an arm and a leg... Any way to extend the validity of the QuickGPS datafiles to enjoy fast gps fixes for more than the standard 7 days?.
There will be no access to a computer with active sync on the trip and my phone plan does not provide gprs/umts data abroad. What do I do to avoid that very long fix time without the aid of QuickGPS?
the only way to do that would be to modify the actual satellites orbiting the earth so they move in a more predictable pattern and the ephemeris info isn't needed
in short - no, there's no way to do it. QuickGPS is a shortcut to getting the position data from the GPS sats which send it at a painfully slow rate. The nice thing is - provided you use your GPS for an hour or so every few days, the info is up to date on your device and you'll still get quick locks.
I'd suggest spending some time with http://en.wikipedia.org/wiki/Global_Positioning_System
I went through this at one point in time. I'll give you the answer that I was given (with the understanding that it could have changed). The reason that QuickGPS updates every 7 days is the ephemeris data is only provided by NGS (http://www.ngs.noaa.gov/orbits/) 10 - 14 days in advance. Not sure if this is a precision thing or a national security thing or if the data file would then become too large, but I was told that it was impossible to get it further out.
FYI - when I was searching, I found this simple explanation of how QuickGPS works. Thought it was interesting.
"Some other posts on the Wiki reference Quick GPS, but seem to mistake what it does, so I thought I'd clear it up, being a professional in the space.
Quick GPS does not "triangulate" using cellular networks, not even close. Let me start by telling you how a GPS gets a fix on its location, and then explain how Quick GPS offers a shortcut.
The GPS chip receives a synchronized timed signal from the satellites (birds) the US DoD launched into orbit. Each bird uses a different channel. With a good signal from three or more birds, GPS starts to get a fix. It does this by calculating the time difference between the reception of the different signals, then calculating the relative distances to each of the birds, then figuring out where it sits in the middle of the birds.
The GPS calculates four spheres, and its located somewhere on the surface of each of these spheres. There is only one point where these four spheres intersect. That's you.
If you're good at geometry, you might think that it needs 4 birds to get a fix, but in fact, if the GPS assumes that you are on earth, that provides another sphere, so it only requires 3 birds to get a decent fix. More adds altitude and accuracy.
But the GPS needs to know where each of the birds is before it can decide where IT is. That information is not calculated, but is available in a detailed download of orbital data provided by the DoD called ephemeris data. It is transmitted...from the bird to your GPS. For a cold start, your GPS needs to download the entire file, without interruptions in the signal - BEFORE it can even start getting a fix. In fact, the GPS may not even know which channels to tune into, since it doesn't yet know which birds are currently overhead. This causes a slow first fix.
Quick GPS, is simple. Ephemeris data is passed thru WiFi or cellular data connection ahead of time, and you never have to wait for it to download over the satellite. Awesome."
I have tried many solutions posted to similar issues in this forum and none are working...
I reflashed the radio
I updated the radio
I also changed roms
I updated google maps...
I installed google voice
I turned the GPS on and off
wiped data and cache
also restarted the phone...
tried indoors and outdoors...
Google maps gets my location fine, but just when I click on navigate it loads and on the bottom of the screen it says "searching for GPS..." and never finds it, the GPS satellite icon shows activity...GPS Test says GPS on...I do not see any other activity at all on the screen though....
this is weird...any ideas? anyone else getting this "error"?
Do you have a data plan or other network connection while trying to get a GPS fix? If you don't, then it can take a REALLY LONG time to get a fix since it won't be able to download the almanac (assisted gps).
Also, some LOCATIONS tend to be very bad for getting a GPS signal. Near tall buildings, for example. Even if you have good exposure to a lot of the sky, the signals can actually REFLECT OFF TALL BUILDINGS and screw up your timings.
lbcoder said:
Do you have a data plan or other network connection while trying to get a GPS fix? If you don't, then it can take a REALLY LONG time to get a fix since it won't be able to download the almanac (assisted gps).
Also, some LOCATIONS tend to be very bad for getting a GPS signal. Near tall buildings, for example. Even if you have good exposure to a lot of the sky, the signals can actually REFLECT OFF TALL BUILDINGS and screw up your timings.
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Yes I do have a data plan. No I am not near ANY tall buildings - I am in a residential area. I used to get GPS fine here when I had my Nexus One and my HD2 ... but this phone is giving me a hard time....I wish I could get it fixed -I was planning on taking a trip tomorrow and it would be nice to have it working, anyways it should work, I dont see a reason why it should not work...
any other ideas?....
anyone else having this problem? .... please advise me....
If google doesn't know the coordinates of the cell tower you are connected to, it may be sending you incorrect almanac data, which will actually make it HARDER to connect (since the GPS will be making incorrect assumptions about the visible satellites).
Try disabling your data services and reboot the phone.
I had the same problem for like 3 weeks, prior to it, my screen was cracked and i had it replaced at a shop. I finally took the phone apart, and the little cable was not connected. If the phone's been opened since last the GPS worked, check that. If not, No idea bro.
Gristline said:
I had the same problem for like 3 weeks, prior to it, my screen was cracked and i had it replaced at a shop. I finally took the phone apart, and the little cable was not connected. If the phone's been opened since last the GPS worked, check that. If not, No idea bro.
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no this phone was never opened, but thanks!...
I have tried all of the suggestions I could find and still have no good results...
any other ideas?
I just checked my logCat and I noticed 4 errors all in a row with the tag "MobileNavigation"... the message says "Network Error! 3 : true". Any insight on that?
Thanks in advance...
so no one knows how to fix this
Did you try to turn off the A-GPS? It looks like your G1 try to connect to A-GPS but it can't connect.
did U find how to fix that cause I have kinda the same problem
erebusting said:
I have tried many solutions posted to similar issues in this forum and none are working...
I reflashed the radio
I updated the radio
I also changed roms
I updated google maps...
I installed google voice
I turned the GPS on and off
wiped data and cache
also restarted the phone...
tried indoors and outdoors...
Google maps gets my location fine, but just when I click on navigate it loads and on the bottom of the screen it says "searching for GPS..." and never finds it, the GPS satellite icon shows activity...GPS Test says GPS on...I do not see any other activity at all on the screen though....
this is weird...any ideas? anyone else getting this "error"?
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My google nav app can t find gps but on the gps status i can fix on1-20 sats. the lock occures almost instantly, sometimes even whithout sats. When indoors (deep indoors) I get lock on 1-3 sats, near a window, at least 8-10 sats.
I d like to know if this is fixable, since I couldn t find another thread that treats this specific problem. I have LG E730 Optimus Sol Gingerbread.
I have the same issue with my HTC Amaze. Looks like there is a huge known problem with Google Maps. This is my second Amaze and both had the same problem. I have tried EVERYTHING. Looks like there is a known issue with Google Maps not using A-GPS correctly. I cannot turn off my A-GPS, so I'm pretty screwed, just waiting on ICS to come out.
I too have been having this issue for some time. This finally fixed the problem:
forum.cyanogenmod.com/topic/29581-searching-for-gps-loop-help/page__p__252817#entry252817 --> YOU WILL HAVE TO COPY AND PASTE URL BECAUSE I HAVEN'T POSTED ENOUGH TO CREATE LINK IN MY MESSAGE
For my Glacier's Sense ROM, I installed DARKSIDE SENSE v4.0... of course I quickly reverted back to my preferred ROM immediately after completing the documented steps in the instructions. GPS works great... no more "Searching for GPS..." message.
digivox said:
I too have been having this issue for some time. This finally fixed the problem:
forum.cyanogenmod.com/topic/29581-searching-for-gps-loop-help/page__p__252817#entry252817 --> YOU WILL HAVE TO COPY AND PASTE URL BECAUSE I HAVEN'T POSTED ENOUGH TO CREATE LINK IN MY MESSAGE
For my Glacier's Sense ROM, I installed DARKSIDE SENSE v4.0... of course I quickly reverted back to my preferred ROM immediately after completing the documented steps in the instructions. GPS works great... no more "Searching for GPS..." message.
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I can't get to that link, can you PM it to me?
I finally found a semi-fix. In the A-GPS app, if you disable "filter GSP Speed" and disable filter strength, it has seemed to clear up the problem 90% of the time. Sometimes it takes 10 minutes to aquire, but sometimes it only take a few seconds and one it get's a lock, it seems to always keep locked on, which is 1000% better than what I was getting prior to this fix.
I'm getting sick of ignorant people saying stuff like "oh yeah your GPS works as long as you have a data or wifi signal."
NO. THAT IS NOT GPS. That is the cheap triangulation signal method via cell towers that just about ANY phone can do. If you don't know the difference between GPS and cell tower triangulation then do not bother contributing to this discussion.
Real GPS uses satellites. You know, the ones in space. Nothing else.
Tomtoms don't use a cellular signal, they use GPS.
If you have real GPS, you can pinpoint almost perfectly where you are in realtime, and even accurately track your velocity, so long as there is a clear line of sight to the satellites. If your location is "bouncing back and forth", then you do not have GPS enabled. Period.
I would like to know, once and for all, was HTC lying on their phone specifications in saying that the HD7 has GPS or not?
My old HTC Touch HD had it. Why on earth does this HD7 not seem to have it?
Has anyone here ever actually managed to verify that a true GPS receiver even exists in this phone?
There is a GPS reciever in the phone or it wont be able to pinpoint your exact location in Bing Maps.
fazkaz said:
There is a GPS reciever in the phone or it wont be able to pinpoint your exact location in Bing Maps.
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I have never had bing maps pinpoint my "exact" location though, only maybe to the nearest 20 metres. And the pointer doesn't seem to move as I move, which suggests to me it isn't using satellites at all...
You seem to be confused. To clear up your misunderstanding, read this:
http://en.wikipedia.org/wiki/Assisted_GPS
FWIW, I use the GPS radio on my daily 6km runs. My old Holux devices (CF-Card, USB external), used to take 30-60 seconds to grab a 3D fix. My HD7 does it in just 15-seconds. If a data connection is available, AGPS will acquire a 'quick fix' first, then based on that position determine which satellites it should look for, elminating the old trial and error method. Hence, a 'true' gps connection is acheived immediately after the AGPS system does it's job.
Bing Maps is just simply a built-in GPS client for the hardware radio and firmware.
To those concerned about data roaming charges, a data connection is not required to use the GPS radio, but is necessary to use downloaded maps, etc. As the newly released Navigon system stores maps on your device (1.6-2.5gb!) it will run independent of a data connection.
Cheers
I understand perfectly what A-GPS is. However I have yet to see my HTC HD7 actually acquire a satellite signal.
Is there anything in the phone that actually indicates when it has acquired a signal from GPS satellites?
What I believe to be the case is that this phone never actually uses GPS signals, at any stage. I believe it simply uses the cellular towers to triangulate your position, and you never get anything more accurate than that.
I would happily be proven wrong. Or if you could show me somewhere on the phone which says "now receiving from (6) satellites" like my old HTC used to do, I will happily stand corrected.
Bing maps has never ever been "GPS accurate" in my experience, and I have had the phone for just under a year now.
What about the Navigon select app that some German carriers implement on their HD7s, isn't that satellite GPS signal ?
i'm using navigon navigator,that show me speed,exat position,and many other info:hd7 HAS A GPS RICEVITOR!!!
I used Bing maps navigation the other day to find a junk yard about 2 hours from where I live and it was pretty accurate. Even merging onto another highway showed the cursor right where I was. After the initial routing pretty sure I was out of signal since I had no service way out in the sticks yet Bing maps never lost the route. I wa pretty satisfied.
But your right real gps shouldn't need a data signal at all like navigon select. Maps are stored locally.
Sent from my HD7 T9292 using XDA Windows Phone 7 App
Heofz said:
I understand perfectly what A-GPS is. However I have yet to see my HTC HD7 actually acquire a satellite signal.
Is there anything in the phone that actually indicates when it has acquired a signal from GPS satellites?
What I believe to be the case is that this phone never actually uses GPS signals, at any stage. I believe it simply uses the cellular towers to triangulate your position, and you never get anything more accurate than that.
I would happily be proven wrong. Or if you could show me somewhere on the phone which says "now receiving from (6) satellites" like my old HTC used to do, I will happily stand corrected.
Bing maps has never ever been "GPS accurate" in my experience, and I have had the phone for just under a year now.
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I'm going to back this post up 100% on my end. I stand outside of my building and have NEVER had my bing map... and it shows me 3 or 4 blocks away from my actual location. I've actually had this question sitting on my end for quite some time now.
I, personally, don't believe that the HTC can be used as a true GPS. It just uses the cell towers like mentioned above.
If somebody could actually prove this, other than saying... IT HAS GPS BECAUSE IT SHOWED ME DIRECTIONS AND ACCURATE DIRECTIONS TOO.... Turn by turn directions though Bing is fine.. but it's still not a true GPS location being used.
Would downloading a GPS program like the 35$ garmin one actually give me a different reading on my map? Would it actually work if I have no cellular signal like a true GPS, and work off of a GPS signal?
@NachoNut and @Heofz: Do the apps in the marketplace that provide system information tell you if the phone is using triangulation or actual GPS? You could also try tweeting @windowsphone, @winphonesupport, @attcustomercare, or @htc asking about it. They're generally pretty responsive
I can't verify the exact GPS hardware, but the "system view" app from the WP7 marketplace shows "GPS location" on my HD7 and reads out to the 100th's place in latitude and longitude and ALTITUDE. You would not be able to read altitude via cell tower triangulation.
I think the issue gets confused because many of the location aware programs will use the triangulation method first while waiting for the GPS to get a reading. For instance, in Bing maps, your location is shown in a wide circle but as GPS locks in the circle shrinks down to a much more accurate location.
Even AGPS cannot get down to +/- a few meters without other outside assistance or references though.
download tools for wp7 app from the marketplace. This has a gps reciever app. Put your phone in airplane mode, and then check if you get a location... I'd do it, but my phone is currently updating to mango.
Not entirely sure what this rant is about to be honest. Just because bing maps is sh!t (which surprise surprise we all know...) doesn't mean that the inbuilt GPS receiver in the phone is useless?! Have you tried Gmaps yet?
As an alternative, why not download WinPhone Info for Mango and it will give you your exact location.
I use the GPS functionality quite often for work, because I have to see lots of different customers in London, on foot. Anyone who knows London, knows how narrow the streets are and how tall the buildings are. Worst case scenario for GPS, yet it works every time and it's very quick to find my location. Even though I think the rest of the phone is underwhelming, this is actually one of the features that works fine. If only Bing was up to Google Maps standards!
I'd like to know the best positioning for the handset it's set for 'line of sight view'.
I go cycling round the park often and I must admit it does not seem as accurate as it did with my old HD2. Could it just be down to construction.
It's the rom. I switch to Telstra rom and my gps is working fine now. The gps on tmobile rom never be able to track my location
Mine used GPS as it came from T-Mobile... in Airplane mode it received the location etc,. but maps can't update because they need a data signal to load their data. It does indeed have a TRUE GPS satellite receiver in it.
Shortly after the mango update, using the free GPSInfo app I managed to get it to tell me it had acquired a satellite signal rather than data only. It gave me altitude readings etc as well as accurate speed info.
Hurrah!
Now all I need is software equivalent/better than tomtom and I'll be a very happy bunny
I was using Navigon Select 2.0 / 3.0 on my HD7 on my holiday to Spain during the summer; for a whole two weeks I had the data connection disabled, and there was no phone reception in some of the mountaineous areas, yet the GPS functioned absolutely perfectly, getting the position quickly and accurately. So yeah there is definitely a proper GPS in the HD7.
My own recommendation for navigation on the HD7 (whether you have access to data or not) is Navigon Europe / USA (ie version 4 of Navigon Select). It's a bit pricey but is price-matched with proper navigation apps on iOS and Android. It does all the usual offline navigation that you would expect with proper POIs, rerouting, etc, but if you let it at your data connection it will also retrieve traffic data, Google Local business results, etc. You can also pin destinations to your Start screen (Home, for example). Absolutely brilliant.
pin point location works fine for me on bing... shows my house on arial view... and while on the move bingel and gmaps both work...
i dont understand why ppl are complaning..
Me too
This has a GPS, but it doesn't lock on very well (or sometimes ever) for me. I am using the T-Mobile version so that may be the problem. If you use the GPSInfo app, it will tell you if you are using AGPS or if you have actually acquired satellites. I have been able to acquire satellites a couple of times, but mostly it just sits there on AGPS mode. I was starting to really like this phone, but the GPS thing might just be a deal breaker for me.
First, the GPS:
My GPS sometimes works, sometimes doesn't. I have not noticed a real pattern. GPSTest pretty much always claims at least 10 (and usually 18-30) satellites visible at almost all times (whether its working or not). However, when not working, it'll generally be actually "using" 0-5 satellites, and not report a fix. Sometimes it reports a fix but the fix is anywhere from 50 meters to 50 km away from my actual location. Signal strength seems irrelevant, most of the time it can't get a fix I've got at least 5 green (30+dB) satellites. It seems to happen about 50% of the time I go to use Google Maps. When Google Maps can't get a fix, no other software can. Usually if I keep trying long enough, it'll eventually get a fix (after 5-40 minutes), once I get a fix, it works for the duration of my usage of Google Maps (or whatever I'm using), but not always. When it does work, I'll usually get a fix within a few seconds. This has been going on for several months. I gave my phone back to Samsung that agreed to do a warranty repair on my USB connector and battery about a year ago, they claimed they replaced them, but I have no real proof of that.
I have tried clearing the cache in Google Maps. Clearing the cache on the phone, doing a data/factory reset. Not loading much of any files. I think I first noticed the problem several months ago. I'm starting to suspect a loose antenna connection. It's my understanding that at least on older phones that the antenna is in the back of the case and connected via spring loaded pins which may become loose over time. Unfortunately, being a Note 5, I'm sure its a pain to even get to these connections.
WiFi:
I first noticed the problem about 1.5 months ago, when I first started using 5GHz WiFi. Occasionally, the WiFi icon on the status bar will get a "!" next to it, and I will be unable to connect to anything via WiFi. If I shut off WiFi and turn it back on, it will work fine again, until it doesn't (which can take anywhere from 5 minutes to a few days). I'm currently connected to the same router on the 5GHz network with both another phone and a computer, and neither have the problem -- so I suspect the phone, not the router. I should probably try switching back to the 2.4GHz network as my primary connection and see if the problem goes away, but I haven't yet.
I'd really like to solve these problems... As sad as it may be, Samsung has yet to offer anything which gives me a real incentive to spend hundreds of dollars to upgrade, and I'd rather not upgrade because of something stupid like this.
2.4GHz seems to have the same problem as 5GHz, but possibly not as frequently.
Have you tried Odin restoring the stock carrier image? Factory reset was never a "True" reset.
Did you ever find a solution to your issue? My Sprint version just started doing the same thing. There is no rhyme or reason to when it will lock and when it won't or so it seems. For example this morning it fired up fine and I drove to a meeting. I was there for 2 hours and when I came out it wouldn't lock. I tried agps reset and it didn't seem to work. It says it sees like 20 sats. Finally 10 mins into my drive and a few agps resets later it locked. I'm on stock everything nonrooted. No major changes to my phone recently which would have coincided with this.