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i was wondering why my gps will only work when my wifi is off, or if it is on but not connected to a network. does anyone have an answer?
Sorry to bump this thread, but I've narrowed my GPS problems on stock 2.2 to my wifi. Not sure if it involves my wifi network being secure or not, but having wifi active seems to be stopping the phone from correctly using the "assistance" in aGPS. It's very strange----when I use GPS Test, the Edge network icon appears, but no packets are sent or received...my "Satellites in view" number thus never goes up to the normal 9-12.
When I turn wifi off, the phone actually sends/receives data over Edge, and the "Satellites in view" number almost immediately shoots to 9-12. It locks shortly thereafter.
Team Whiskey shockingly seems to have fixed this in later Nero/Bionix-V ROMS...anyone have idea how to fix it on stock?
EDIT:
Figured out my problem! Examined Team Whiskey's gps settings---looks like they have MS BASED selected as GPS mode.
Went into LbsTestMode, selected MS Based and changed SUPL setting to Google (just for good measure). GPS now works like a charm with Wifi active. (Assuming I have network, that is.)
inconceeeivable said:
Sorry to bump this thread, but I've narrowed my GPS problems on stock 2.2 to my wifi. Not sure if it involves my wifi network being secure or not, but having wifi active seems to be stopping the phone from correctly using the "assistance" in aGPS. It's very strange----when I use GPS Test, the Edge network icon appears, but no packets are sent or received...my "Satellites in view" number thus never goes up to the normal 9-12.
When I turn wifi off, the phone actually sends/receives data over Edge, and the "Satellites in view" number almost immediately shoots to 9-12. It locks shortly thereafter.
Team Whiskey shockingly seems to have fixed this in later Nero/Bionix-V ROMS...anyone have idea how to fix it on stock?
EDIT:
Figured out my problem! Examined Team Whiskey's gps settings---looks like they have MS BASED selected as GPS mode.
Went into LbsTestMode, selected MS Based and changed SUPL setting to Google (just for good measure). GPS now works like a charm with Wifi active. (Assuming I have network, that is.)
Click to expand...
Click to collapse
Do you need gps to get around your house? That's one big house lol
When you use aGPS your phone is connecting to the providers trusted server. Since you are connecting using Wi-Fi the server in question cannot validate your phone as a valid device. Work around:
1. Do not use Wi-Fi when using GPS or
2. Use supl.google.com for your aGPS server.
Krzysiek_CK said:
When you use aGPS your phone is connecting to the providers trusted server. Since you are connecting using Wi-Fi the server in question cannot validate your phone as a valid device. Work around:
1. Do not use Wi-Fi when using GPS or
2. Use supl.google.com for your aGPS server.
Click to expand...
Click to collapse
Yeah, I'm an idiot. Figured this out earlier in the morning. Realized that changing the server is what fixed it. Thank you so much though! Your explanation of the security/validation makes perfect sense now.
And yes, I've got OCD. I need mah GPS everywhaarrr
Hey guys,
Here's a quick rundown of my situation: I've had my GPS connector replaced per the instructions in the "Correct Hardware Fix" thread. I've been running tests using both the integrated gps test menu and the Chartcross gps test app.
For starters, I've found something quite curious about the Chartcross app. Despite the fact that I have "Use Wireless Networks" disabled in location & security settings, the Chartcross app does appear to use network assisted gps.
Chartcross Tests
Test 1: Place phone in airplane mode, restart, run test. Finds 3-5 sats, maybe connects, takes forever nevertheless. In other words, sucks.
Test 2: Re-enable wireless data. Restart. Run test again. Immediately sees 13 sats, connects to 7 fairly quickly (inside even). Again, this is despite having "Use wireless" unchecked.
My GPS is obviously working (and working well), so why the hell will it not connect while data is off? I'm totally stumped...any advice would be much appreciated.
P.S. I've tried Nero v5 (awesome, by the way) and stock 2.2. Pretty sure my phone is a July 2010 model, if that helps.
I had some slow connect issues with Nero v5 as well. I got mine resolved by flashing a newer (KA7) modem.
http://forum.xda-developers.com/showthread.php?t=868774
I'm getting awful gps with the ka7 modem. How was your gps before hardware fix?
Get a clue people, read the Vibrant advertisement. The Vibrant has GPS assist NOT GPS. That means without the Cellular connection just relying on the Sats for the connection, the GPS will be sucky and slow, but it will work without the Cell/wireless signal.
i am using KA7 and i am getting 11-14 in view and 5-7 lock, fast locate.
Without Cell signal i get 5-8 view and 3-5 lock takes 45sec-1min
But this could because of where i am and most likely why people have different performance of the GPS
oka1 said:
Get a clue people, read the Vibrant advertisement. The Vibrant has GPS assist NOT GPS. That means without the Cellular connection just relying on the Sats for the connection, the GPS will be sucky and slow, but it will work without the Cell/wireless signal.
i am using KA7 and i am getting 11-14 in view and 5-7 lock, fast locate.
Without Cell signal i get 5-8 view and 3-5 lock takes 45sec-1min
But this could because of where i am and most likely why people have different performance of the GPS
Click to expand...
Click to collapse
Sorry man, I didn't realize the distinction.
So let me get this straight:
An assisted GPS uses some sort of wireless data regardless of whether or not the "Use Wireless Networks" box is checked in Android settings?
GET A CLUE PEOPLE! lol
ferhanmm said:
GET A CLUE PEOPLE! lol
Click to expand...
Click to collapse
Yeah...
Hi,
I'm just wondering why my GPS doesn't work without internet connection. It just can't connect to any sattelite. I'm currently using PFGPS v2.0 FIX for my country (Poland) and I don't see any changes. What is wrong?
It requires Internet to load the maps
Can I load maps now to use GPS without internet connection if I'm not in wifi area?
Brajano95 said:
Can I load maps now to use GPS without internet connection if I'm not in wifi area?
Click to expand...
Click to collapse
how can you load maps without internet connection ??
I'm at home now so I can do it cause I have wifi here :/
Brajano95 said:
I'm at home now so I can do it cause I have wifi here :/
Click to expand...
Click to collapse
so you have wifi that means you are connected to the internet!!!
for GPS it can only find your position but can't display your location on a map without an internet connection so GPS needs one.
I will wait for answer from another person. Thank you.
There is an application on the market(related to sports/tracking) that allows you to download a portion of a map and then you can use your GPS offline(no data connection). When I get home I will look for it(I have it on my tablet).
Correct me if I am wrong but Brajano95 means that is it possible to load the maps on his wifi connection and keep then saved when he is out and about to allow the gps to connect. You used to be able to do this in the google labs section on google maps but they've since taken it away unless you look for an older version. Otherwise have a look for third party map app on the android market which allows downloading of map data to the phone
adsada arc said:
Correct me if I am wrong but Brajano95 means that is it possible to load the maps on his wifi connection and keep then saved when he is out and about to allow the gps to connect. You used to be able to do this in the google labs section on google maps but they've since taken it away unless you look for an older version. Otherwise have a look for third party map app on the android market which allows downloading of map data to the phone
Click to expand...
Click to collapse
Thats exactly what I'm talking about! Now I'm downloading Sygic Aura (about 550 mb) and will test it later.
Because GPS and Maps on CM7 suck balls at best. Maps is using your I.P. for the GPS coordinates when on WIFI, without it Maps is counting on a reliable signal from your GPS; and that's just not going to happen with CM7.
Sent from my GT-S5830 using xda premium
You can use iGo My Way
I know a fair bit about the GPS module in the Ace so i will comment. I think someone has already told you that it is possible to operate the Ace with preloaded maps. Likewise, i thought that the OP's choice of Sygic Navigation is a fair one.
Back to the original question in the title. GPS can operate with or without internet be it wifi or data e.g. 3G/2G. The difference is how fast you can obtain a GPS lock. Without using any positioning help from data connectivity, you are looking at a lock time of possibly 15 minutes thereabout.
There are 4 modes of operation possible for the GPS module in the Ace which is actually Qualcomm's GpsONE.
1.) Standalone (Slowest using positioning information in cache and smart polling)
2.) MS-Based (Sends data to nearby cell tower(s) and makes use of GPS transceivers in the cell tower(s)
3.) MS-Assisted (Similar to MS-Based BUT data connectivity is broken when GPS transceiver is online. I don't quite like that!)
4.) MS-Based/Hybrid (You need to have superb data connectivity probably cell tower signal strength should be in the -50dBm region. Not very useful in real life usage)
i have had my own thread for fixing GPS, so read up if you want to know more here.
http://forum.xda-developers.com/showthread.php?t=1320626
first you need the maps to use it offline, and the correct gps.conf for your location http://forum.xda-developers.com/showthread.php?t=1284506, then you can use it without internet
Mapdroyd is a great app that allows you to download maps for offline use. Unfortunately there isn't offline navigation though..
Hi,
I've solved my problem, just install Sygic! Thanks for helping guys
btw u dont need too install anything.. go to google labs inside maps and add map cache.. now long press a location on map.. click the arrow on the address and u ll see an option to cache that area.. the steps may not be accurate as i tried it a long time back and dont have my phone with me but its possible and what u have to do will be more or less the same...
Greetings!
I am going to Turkey this Saturday with my school, and I am wondering if I am able to use my gps without huge costs?
My data will be disabled
Sent from my Galaxy Nexus using XDA
Last time checking...
GPS is free,
As for data ,
It really depends on the App you are using.
For example :
Google maps requires you to download the maps which would require data.
Try Maverick GPS app
Try Maverick, a GPS app without the need of data or wifi.
You can d/l the lite version for free off the market.
Wont give you a great navigation but it will do the job for free
Also try Navfree.
https://play.google.com/store/apps/details?id=com.navfree.android.OSM.ALL
Sent from my Desire HD using xda premium
You can pre-cache a 10milex10mile square in the google maps app but you'd have to know where you were going to go in advance to cache the areas but this can be done during a trip whenever you have wifi and know you're changing cities. No turn by turn or searching but at least you'd have a map you could plot your position on from the phone.
Well, most phones have A-gps, that stands for "assisted GPS": it is not the same as the common gps in Tom Tom devices and so on.
A-Gps has less power consumption, but a weaker receiver so, without the help of a data connection, it would turn to be quite useless, apart from the maps that should be loaded in advance.
GPS positioning data is always free..
You just need the right software to do turn by turn nav (Like Sygic or NavFree / etc)..
You can cache maps off of Google, but that won't give you turn by turn.
Sure GPS connection is free, but data run on 3g or 2g network to assist the GPS. May be it's not a big amount but, if you're travelling abroad, it won't be so cheap
I wonder if the main population will ever understand what a-gps are.
You can use iGO MyWay for android. Easy program and it dosn't connect to internet
Straight from Wikipedia. Now it'll be clear that a-gps needs data connection...
Standalone GPS provides first position in approximately 30-40 seconds. A Standalone GPS system needs orbital information of the satellites to calculate the current position. The data rate of the satellite signal is only 50 b/s, so downloading orbital information like ephemeris and almanac directly from satellites typically takes a long time, and if the satellite signals are lost during the acquisition of this information, it is discarded and the standalone system has to start from scratch. In AGPS, the Network Operator deploys an AGPS server. These AGPS servers download the orbital information from the satellite and store it in the database. An AGPS capable device can connect to these servers and download this information using Mobile Network radio bearers such as GSM, CDMA, WCDMA, LTE or even using other wireless radio bearers such as Wi-Fi. Usually the data rate of these bearers is high, hence downloading orbital information takes less time.
AGPS downloads very little data and it doesn't even require cell service. I have a non activated Android device and using GPS Status it will download AGPS data over wifi. This data is pretty small in size and you only need it to initially lock on satellites faster. Without AGPS data you'll just have to wait longer to get a lock.
For an offline GPS app, I use Sygic since it uses TomTom maps and I've owned a TomTom unit before. But there are other good ones out there.
Yes, there's no contraddiction between all that has been said by both of us. Not a huge data amount but if you are abroad and a roaming area it won't be cheap, because the data flows any time a fix is needed... Just think of tunnels and areas where the GPS signal is weak. I mean, the fix is not one only, it may be 20 or even 100 during an hour of navigation.
My Wi-Fi is scanning constantly when already contacted to my home network successfully.
It is killing my battery. Visible difference with Wi-Fi on vs off in the battery graph
I have many things hibernated.
So I'm reading about this interval, wondering what the longest possible interval is as I turn off and on Wi-Fi manually, and I'd like to save my battery juice. Even idle but on Wi-Fi there's a big difference!
I'm on a rooted Samsung Galaxy s5 neo
And yes I've got it set to off already for it scanning even when Wi-Fi is set to off for Google networks.
Help?
Sent from my SM-G903W using XDA-Developers mobile app
Anyone?
Sent from my SM-G903W using XDA-Developers mobile app
Does WiFi not kill anyone else's battery? Orrr... ?
Sent from my SM-G903W using XDA-Developers mobile app
For being the third Google result when searching for "wifi supplicant scan interval", this thread's lack of feedback is remarkable. I was wondering the same. I've now set it it to 600 because I'm really not that dependant on WiFi since I have a 4GB data plan. I don't mind if it takes a while to connect when I get home and with this setting it'll only check for a connection 50 to 60 times a day (during the 9 hours I'm away from home) but still enough when connected, I don't need updates to be more frequent than 10 minutes. We'll see how that goes.
Did you eventually end up altering it, @Pawprints1986 (look at that, we're from the same year!)? If so, what were your experiences?
I actually haven't altered anything. I don't have the supplicant line already in my build prop and I'm not sure where to put it or which value to use, or if it would work.
I tried adding a line into my s2 build prop but it didn't seem to actually respond to it, so I must have done something wrong, still searches every 2 seconds.
Sent from my SM-G903W using XDA-Developers Legacy app
I tried 720 Supplicant WiFi Interval and I have low issues. The signal to find new WiFi is still easy to get, albeit some waiting a little bit but saved a tremendous amount of battery.
I also disabled WiFi Scan completely and not know how I did it until just recently by using AppOpsXposed and disabling Location on settings. That stops WiFi Scan completely and only allows you to connect to your WiFi routers that you already connected to.
How would you force Android to scan for new wifi network manually? With that, we could have the best of the two world - long battery and fast switching when you need it.