Hi,
I'm not sure if I formulated thread subject in a right way. But maybe you will understand.
I had a long vacation in Spain (I'm from Lithuania). I was dependant on GPS very much.
And reception time was sooooo bad! I needed to wait 3-7minutes to get GPS signal in Sygic application. All the time!
Today I returned from Spain and tested GPS in Lithuania (my country) and signal reception was very good. Just a matter of seconds. Sygic was catching signal almost immediatelly after application has started fully.
I did many tests after I returned. Same was before leaving to Spain.
Is this a Roaming issue? What should I do to make GPS reception good when I'm abroad? I made many tests: enabled location services, enabled Wifi, tested that even with the data connection ON (yes it was pricey). All the time GPS reception was very long (close to non acceptable).
Any ideas?
Hi,
No help?
Sent from my Galaxy Nexus
Try faster fix (needs root) changes NTP server, closer to your location.
Also try taking a couple of radios to flash when you go overseas. A lot of people now using the JB radio XXLF1 which is working great for me on ICS.
Related
This might be a noob question, but I have a question regarding the GPS.
Does it require data to work? Or does it require data to work for certain GPS features?
I am going to Europe and need to decide if I will need to take my N85 unlocked and try and get a local SIM card there. I want to geotag my photos but don't know if you can since the EVO has no international roaming capabilities.
Does Geotagging (or any other GPS feature) require data to work or can some GPS functions work by connecting directly to the satellites?
pekosROB said:
This might be a noob question, but I have a question regarding the GPS.
Does it require data to work? Or does it require data to work for certain GPS features?
I am going to Europe and need to decide if I will need to take my N85 unlocked and try and get a local SIM card there. I want to geotag my photos but don't know if you can since the EVO has no international roaming capabilities.
Does Geotagging (or any other GPS feature) require data to work or can some GPS functions work by connecting directly to the satellites?
Click to expand...
Click to collapse
GPS will require data, especially if you plan on using some form of Geotagging.
Definitely take your N85 unlocked and have a SIM card -- leave your EVO at home, since the EVO is CDMA based and almost all networks in Europe are GSM based, your EVO won't be doing any calling/texting -- that is unless you want to get a huge ass bill for roaming every second?
I'm not 100% positive, but the way it works is that the GPS on the phone will try to connect to your carriers tower first and get all the information it needs from there... then any information it can't retrieve or has to upload (maps, geotag, etc) it'll use a universal satellites. These satellites are the ones that your phone connects to if it has to be tracked if you get lost (via 911) and are also the same ones Google probably uses for Maps, Navigation, etc -- since they provide a large amount of information.
Hope that helps.
pseudoremora said:
GPS will require data, especially if you plan on using some form of Geotagging.
Definitely take your N85 unlocked and have a SIM card -- leave your EVO at home, since the EVO is CDMA based and almost all networks in Europe are GSM based, your EVO won't be doing any calling/texting -- that is unless you want to get a huge ass bill for roaming every second?
I'm not 100% positive, but the way it works is that the GPS on the phone will try to connect to your carriers tower first and get all the information it needs from there... then any information it can't retrieve or has to upload (maps, geotag, etc) it'll use a universal satellites. These satellites are the ones that your phone connects to if it has to be tracked if you get lost (via 911) and are also the same ones Google probably uses for Maps, Navigation, etc -- since they provide a large amount of information.
Hope that helps.
Click to expand...
Click to collapse
Above information on GPS is wrong, I am not sure where to start to correct it. Lets not, and simply respond to the original question:
GPS is a global network, and works without any data. In fact a GPS device is receive only device, so it cannot even send. If you have a GPS device, it will work all over the world, though it may take a while in clear sky to get a cold fix for the first time after you crossed the Atlantic.
There is something called AGPS or assisted-GPS, which does use data by first requesting a rough fix from the phone network as well as the current position of all the GPS sats, which will speed up the first fix of the GPS a lot, but that is not needed per se, so if you have no phone signal, or no data roaming, GPS still works, just the first fix may take a bit longer.
Mind you, some phones have a broken AGPS implementation, which behaves strange on some phone networks, so you may want to configure it not to even try to use AGPS when abroad. Have it fall back to regular GPS. Then there will be no roaming or attempted roaming on behave of the GPS. GPS will never provide a (navigation) map, it will only ever give you a position, but for tagging, that is all you need.
As to your specific phones, I do not know the EVO specifically, but assuming Sprint did not put in some program to completely bock the phone when out of its network, since it is Android it will simply let you make pictures and GPS tag them without any network.
You do want to bring your Nokia though if you want to call people, Europe is indeed close to 100% GSM based on the 900 and 1800 Mhz frequencies.
cybermaus said:
Above information on GPS is wrong, I am not sure where to start to correct it. Lets not, and simply respond to the original question:
GPS is a global network, and works without any data. In fact a GPS device is receive only device, so it cannot even send. If you have a GPS device, it will work all over the world, though it may take a while in clear sky to get a cold fix for the first time after you crossed the Atlantic.
There is something called AGPS or assisted-GPS, which does use data by first requesting a rough fix from the phone network as well as the current position of all the GPS sats, which will speed up the first fix of the GPS a lot, but that is not needed per se, so if you have no phone signal, or no data roaming, GPS still works, just the first fix may take a bit longer.
Mind you, some phones have a broken AGPS implementation, which behaves strange on some phone networks, so you may want to configure it not to even try to use AGPS when abroad. Have it fall back to regular GPS. Then there will be no roaming or attempted roaming on behave of the GPS. GPS will never provide a (navigation) map, it will only ever give you a position, but for tagging, that is all you need.
As to your specific phones, I do not know the EVO specifically, but assuming Sprint did not put in some program to completely bock the phone when out of its network, since it is Android it will simply let you make pictures and GPS tag them without any network.
You do want to bring your Nokia though if you want to call people, Europe is indeed close to 100% GSM based on the 900 and 1800 Mhz frequencies.
Click to expand...
Click to collapse
I figured I was wrong, I stand corrected.
Hi,
I have some data connection problems since the first day i bought my DHD.
The phone reception signal bar are always changing even when i am not moving at all.
It can generally move from H to 3G a few times, then go to E and then G, in a few seconds.
it always moves, my internet connection is very slow.
It's as if the radio was always trying to renegociate the method of communication (GPRS, 3G, etc) with the operator's antenna
When i am in a phone call, i got disconnected sometimes or the sound stop during a few seconds (the time the radio switch from 3G/H to E/G i guess)
When i disable WCDMA from the settings i get a quite stable sound during my phones calls (maybe because the phone no more tries to negociate). But for Internet... it's just slow.
I tried a few ROMs, and their respectives radio rom (the one with the IRL branded in the ROM) i sometimes thought it was better but always it's still too unuseable.
I tried my SIM card in an iphone 3GS and i am usually in Edge (sometimes 3G) but when its 3G i can surf quickly during hours (if i don't move). This is not the case with the DHD.
btw i am on the french carrier SFR
If any of u had any clues i would really appreciate your help.
Thanks you
what rom are you using and what radio and ril................... now what radio are you on now
OP already stated he tried numerous ROMS and their cooresponding radios. Sounds like the signal is that degraded that any radio/ril combination will not help.
Thanks for your replies.
As said i tried many ones with their respective recommanded radio.
I am actually trying Radio_12.62.60.27_26.13.04.19_M with Android Revolution HD 4G_6.1.1 with no sense script.
Are there tests i could do to identify if its a hardware problem (like standing in front of an antenna and running some special tool maybe)
Btw, i also tried :
-RCMix3D_Runny_v1.3 but does work with internet pass through (wich is really important since i can't use internet from my phone carrier...)
-niarkMIUI-3.9.1
-LeeDrOiD_HD_V4.0.0-SE-3.0-BETA with Radio_12.54.60.25_26.09.04.11_M2
-cm_ace_full-203 with my stock radio ROM
-virtuous_unity-v2.37.0 with i don't remember wich one...
P.S : i would be Glad to test any ROM / Radio combinaison you would suggest me.
Thanks by advance for your attention
if you tried all those roms and diffident radios seems like its more like a hardware or provider issue does it happen off different towers or maybe you can go to one of the stores and try the phone at the store with yours at the same time?
Thank for the advice indeed i need to try this.
Do you know what i need to revert back for the tech not to tell the waranty is over since i have flashed my phone ?
Does i need to reflash the recovery etc? is there some tutorial in this subject because if i go to the store with my custom rom i guess i won't get too much help :/
Don't even take out your phone, your going to say your just looking, don't show anyone your phone, they won't even know what to look for, just test your phone to the one at the store, make sure apn's match. But if you return your phone you'll need to ruu back to stock. You can search easy s-on
Sent from my Inspire 4G using XDA App
What happens if you manually select 3G only, or 2G only from the settings menu? Does it just lose signal, or stays strong?
Hi
If i select 3G only
I first get no reception (as if when switching from 2G to 3G the radio had to restart)
Then the 3G signal appear strong, decrease slowly in less than 30 seconds, and after all, it seems quite stable.
The bandwidth is good i am downloading fastly
(i am commenting in real time)
Still no deconnection.
I will try it during the whole day and tell how it is behaving.
umm during a few seconds, there were no indicator (no 3G or H), just 3 bars.
It then restarted in H with 1 bar (i am not moving at all)
What will happen if i have no 3G in my area ? I won't be able to receve a phone call ?
Thanks
elfrancesco said:
Hi
If i select 3G only
I first get no reception (as if when switching from 2G to 3G the radio had to restart)
Then the 3G signal appear strong, decrease slowly in less than 30 seconds, and after all, it seems quite stable.
The bandwidth is good i am downloading fastly
(i am commenting in real time)
Still no deconnection.
I will try it during the whole day and tell how it is behaving.
umm during a few seconds, there were no indicator (no 3G or H), just 3 bars.
It then restarted in H with 1 bar (i am not moving at all)
What will happen if i have no 3G in my area ? I won't be able to receve a phone call ?
Thanks
Click to expand...
Click to collapse
If you force it to 3G only, and you move out of 3G area, then you should either get a no signal indicator, or if you have roaming enabled, you would get the roaming indicator. I'm curious now because as you said you aren't moving, and it's still changing. That shouldn't happen. Hmmm
Hello, I just upgraded from an Evo Shift to the Epic Touch and absolutely love my phone. However, one thing has not been working as expected. On my Evo Shift, I was able to obtain a coarse location fix solely using the mobile network (e.g. GPS is turned off, and I get a 2000ft accuracy general network location). This was great to use along with tasker so that I wasn't having to consume so much battery to get a general location.
However, with my Evo Shift it seems as if whenever I attempt to obtain a coarse general network-based location, it either does not give me a fix at all (your current location is temporarily unavailable) or gives me an incorrect location. When I turn on the GPS itself, it gives me pinpoint fine location, but I'd rather not have to keep GPS on all day in order to have tasker turn on my wifi. As far as settings/mods, I am running stock EL29, rooted (with no modifications), have "Use Wireless networks" checked in location and security settings, and normally turn off wireless when I'm not home.
Thank you in advance for any thoughts or comments.
Bumping this in hopes of an answer or at least some insight.
I know that there are a lot of threads that provide GPS solutions, but those seem to be regarding how to get a GPS lock, not necessarily issues with aGPS.
Thanks in advance.
I just checked maps quickly.
GPS on: 10m accuracy
GPS off, wifi on: 20m accuracy
GPS off, wifi off: 1800m accuracy
Seems like it's working as it should. I'm on Caulkin's EL29 Rom, with EG30 modem. Hmm.. why am I on EG30 modem.. all this flashing back and forth I never checked last time I went back.
my aGPS shows 2700m accuracy.
the center point is also 15 miles southeast from my current location.
WAAAAAAAY to inaccurate lol
The other day I drove 30 miles away and Llama never changed my cell mast. I also work 10 miles from home and my cell mast never changes. So Llama is unusable for me as well. (Since my phone evidently stays on the same cell tower no matter where I go in the salt lake valley)
Hello, thank you for your responses. Since my last post, I followed the fix specified in this thread, which resolved the issues I was having even on a stock rom. IN addition, it did not seem to negatively affect fine gps location, which was ok before.
With that resolved I actually moved to Caulkin's EL29 rom (for battery reasons), and still was able to pull both coarse and fine network location, so all is good.
I guess the resolution is if you can not pull coarse network location via cell tower triangulation (essential for either Llama or Tasker), either use the fix at the following link, or try another ROM:
http://forum.xda-developers.com/showthread.php?t=1448015
Hi. I've an HTC Desire, with Rooted Gingerbread (2.3.3) and the 32.56.00.32U_5.17.05.23 Radio. i'm in italy, under Wind, but i've also a Tim Simcard and both have the same problem: Under WCDMA/GSM or WCDMA only, sometimes the connection drop, maybe during a call, and then i'm not able to receive calls or sms'. most of the time the data connection works fine, except that sometimes it remains stuck and says it's uploading something (the icon on the notification bar) but after less than a minute it goes again. Please help me, i've tried different roms with different radios, when i first bought the phone (used from uk) i remember it worked fine, i started noticing the problem after i installed a gingerbread rom with sense 3. i can't use the GSM only mode, cause i've a data plan and i need browsing, so GSM is too slow
thanks
up
It may just happen in areas where you have poor signal.
eddiehk6 said:
It may just happen in areas where you have poor signal.
Click to expand...
Click to collapse
thanks for the answer. i noticed that this situation is stronger in my bedroom, where i keep my pc. not in my house, just in my bedroom. the signal is not poor, i tried to download many app from the play store, and sometimes the download is fast, sometimes the download stops. then i tried the same thing out of my house, but connected with the same cell, and even if the signal was lower, and the download speed too, the download went good, and the signal never dropped, the connection type was WCDMA/GSM and the phone was in HSDPA. i don't know what it can be, i'm starting to think that there's something in my room with and electromagnetic field.
superwolf95 said:
thanks for the answer. i noticed that this situation is stronger in my bedroom, where i keep my pc. not in my house, just in my bedroom. the signal is not poor, i tried to download many app from the play store, and sometimes the download is fast, sometimes the download stops. then i tried the same thing out of my house, but connected with the same cell, and even if the signal was lower, and the download speed too, the download went good, and the signal never dropped, the connection type was WCDMA/GSM and the phone was in HSDPA. i don't know what it can be, i'm starting to think that there's something in my room with and electromagnetic field.
Click to expand...
Click to collapse
Maybe you have well-built house
Anyway, it's common problem. I have 3 Desires and they all loose connection in some areas for a while.
Every phone behave like that.
For me a useful trick was to change from GSM/(WCDMA preferred) to GSM/WCDMA auto as I'm hardly ever using 3G.
Phone chooses the strongest cell now, not just WCDMA cells.
I'm using CM7.2 and in CM forum there is a lot of issues considering 3G stability in Desire, so not much can be done.:crying:
Cheers
Good afternoon.
Guys, I've been very angry with Google Maps.
When using turn-by-turn navigation, inside the urban perimeter works fine, but when I move to the rural area I have constant problems of "GPS signal loss".
I noticed that by losing the data signal (4G / 3G), Maps stops navigating. Do you have any way around it? Having a GPS dependent data signal is very infeasible.
Thank you.
Have you tried putting the location mode to "High Precision" or "Device only" in the location settings pane? Sounds like you're not using GPS, but cellular location....
I have already tried both modes and in both the problem is the same.
This problem comes from the time I had a Nexus 5, at the time thought was problem in his hardware, but start to be a bug of the Android itself.
Did you install the app GPS status? If not, please do. It will show an overview of your GPS receiving, and download the latest A-GPS library's.
However put the setting of location on Device only. That's important, it will use the internal receiver instead of network masts.