Database Info

Another gps thread but with a twist-ish

Right Ive had my O2 XDA Serra for 3 days now..what can I say but amazing when it works but when it doesn't GOD I want to throw it at somthing. but anyway my issue is with the gps.
It finds the salitlite things and I see the red bars going up and down but I dont get a fix! Its found 12 satilites and nothing!!!! Im using com4 on braodrate 4800 ive tried the other settings but they dont work either.
Ive spoken with O2 and quried them with this fault and they have never herd of it!!!!! Im like WAT! its plastered all over the web!
Anyway is there anyone who can help a guy out?
THanks Andi

How long are you waiting? Having used GPS' now for approx 15 years a unit may have identified a sattelite but it may still take some time for it to lock on. It is not unusual for a unit to see all the sattelites available but still take some time to lock on. Sadly it appears that in the Touch Pro they are using some of the older tech GPS chips/antennas (probably to keep the price down) because on modern setups (used by the likes of Garmin etc), a brand new cold lock can be achieved in a minute or two. Once you have locked on you should find re-aquiring the satellites much quicker unless you leave it for a day or two between 'fixes.'
Although having used GPS for 15 odd years, I am certainly no expert in how they work etc so I could be way off the mark but this is based on my experience.

1) It will lock on faster if you're outside with a clear view of the sky
2) Updating QuickGPS might help some
3) You can expect it to take 1-15 minutes to get the first lock (usually 2-3 for me)
Which app are you using? I like VisualGPSCe to view the sats, HTC GPS Tool is another popular one.

hi thanks for the info, Ive left the phone for ages (well over 25mins) and nothing ill try and get a screen shot posted when i get home of this, the software im using is that htc gps one im just prober scratching my head over this one......

Andi-2005 said:
hi thanks for the info, Ive left the phone for ages (well over 25mins) and nothing ill try and get a screen shot posted when i get home of this, the software im using is that htc gps one im just prober scratching my head over this one......
Click to expand...
Click to collapse
I had my Touch pro for a few weeks and have always had the gps working well (though I think it's less sensitive than the Diamond).
after a brief period of losing the signal every couple of seconds (which was already locked and navigating me fine!) it stopped fixing altogether. Satellites shown but no signal bars in TomTom or any lock in Google maps.
Hard reset didn't help and it's being replaced tomorrow.....
I'd take it back to the shop once you rule everything else out....

Captivate with JH7 GPS testing

Just loaded the official JH7 release and took my scooter for a ride. Captivate in my left front pants pocket, so it sits face down on my thigh, back (battery) side facing up toward the sky. Actually, it looks very good. Before the ride, lock was very good, lots of satellites and all locked very quickly. And the track looks excellent. I'll be curious how this works in a week... whether it degrades as the other one appeared to. But at the moment I am tentatively happy. Note the scooter ride averaged 20.82 mph, max speed of 38. So this was not a slow walking track. And yes I went up and down those blocks making a pattern to test the GPS. ;-)
Please post your test results of JH7 in this thread so we can compare.
Carl

I am in no way trying to be disrespectful, or an a$$ even though the following may seem like I am:
Did you search the forums before posting this? I started a thread similar to this not 20 minutes ago. I personally do not care to be the OP but I am posting here to explain that this is the reason we 2312 different threads about the same dang thing (today's update). It is impossible to search for information because everyone seems to feel the need to post their own thread.
Again no disrespect, I am not trying to dampen your enthusiasm for this but just would like some organization so that people (me ) won't have to read 30 different threads to get some information. I will ask the XDA gods to merge our threads maybe???

ptc62 said:
I am in no way trying to be disrespectful, or an a$$ even though the following may seem like I am:
Did you search the forums before posting this? I started a thread similar to this not 20 minutes ago. I personally do not care to be the OP but I am posting here to explain that this is the reason we 2312 different threads about the same dang thing (today's update). It is impossible to search for information because everyone seems to feel the need to post their own thread.
Again no disrespect, I am not trying to dampen your enthusiasm for this but just would like some organization so that people (me ) won't have to read 30 different threads to get some information. I will ask the XDA gods to merge our threads maybe???
Click to expand...
Click to collapse
I was looking for a thread like this not 15 minutes ago. Finding it in this cluster of posts isn't easy.

ptc62, Maybe if you had named your original post usefully, or had actually posted some test data yourself, I would have noticed it. Was I supposed to search for "million dollar question"? I understand your frustration as I HAVE kept up with the other threads and its a lot of work. But it's true I don't read the ones with ambiguous titles. As it is, your comment only disrupts an otherwise useful thread. Oh well. Sorry for any angst I have caused you.

ptc62 said:
I am in no way trying to be disrespectful, or an a$$ even though the following may seem like I am:
Did you search the forums before posting this? I started a thread similar to this not 20 minutes ago. I personally do not care to be the OP but I am posting here to explain that this is the reason we 2312 different threads about the same dang thing (today's update). It is impossible to search for information because everyone seems to feel the need to post their own thread.
Again no disrespect, I am not trying to dampen your enthusiasm for this but just would like some organization so that people (me ) won't have to read 30 different threads to get some information. I will ask the XDA gods to merge our threads maybe???
Click to expand...
Click to collapse
Your "Million Dollar Question" topic tittle is very misleading. I wouldn't blame Vintage for not being able to find it and starting a new thread. You should have been more specific. "Today's update" can mean anything in the title.
Vintagephone, thank you for making a thread with a proper title. Thank you for your test results. Now I can stock you because I know your scooter route , lol jk. I use to live in Irvine, kinda close by. I'm glad the GPS looks like it's working kind of well in CA.

This is a useful thread. Don't worry. It's very specific to JH7 -and- GPS. Plus, the thread TITLE is perfect. Great post.
My test... using the GPS Test app, it took about 45sec to lock on the first try. After it locked, I rebooted the phone. The next time it locked, it took only about 15sec.
On a sidenote, I'm still having problems with the Use Wireless Networks triangulate my location. I have that checked and Use GPS unchecked. I had Google Maps (the latest version) try to use the wireless networks to get My Location but it says "Your current location is temporarily unavailable." Something is up.
On a much side(r) note, PC Connection (for tethering) is gone. Accessing GPS settings via phone dialer is gone. YouTube widget has rotating feature videos, and the screen brightness settings that used to be the dimmest possible became much dimmer.

I did a track using My Tracks for my ride home from work and it was pretty bad, actually. It was an 8 mile ride, and it completely lost my location (stopped recording on default settings) 3 times. There were times when it worked flawlessly, but other times when it just connected the dots taking me off the road... So far, I am not very impressed. However, it is functional enough to use location-based apps and do some navigation (but I wouldn't rely on it completely, you'll end up in a ditch).

Here's a track I recorded this afternoon. 7.52 mi, 31.62 mph average speed, 61.04 mph max speed. Blame afternoon traffic. There is one inexplicable gap, and one spot where the track veers off to the center of the freeway. The latter was while driving next to/under a raised expressway, so perhaps it's sort of excusable? I dunno.
Overall, though, the GPS worked GREAT on this drive. It's not perfect, but it's about 500 times better than it ever was before this patch. Previously, it would show me going completely off the road, and making loops at intersections. Not usable at all. But for now, I am tentatively impressed with this fix. Only time will tell if performance will degrade as in the past, but right now it's working so well it's astonishing.
The only distressing part is that the GPS got a 10 meter, 7 satellite lock on me... in the bathroom with no windows... on the... toilet.

OK, here are my real world GPS test results after installing the new update:
Just drove home from work, about 24 miles. I drive through residential, heavily wooded, congested business and open highway areas. The GPS locked on within seconds of me starting up Google Navigation. It was spot on for almost the whole trip. Only when I was stopped for a period of time (i.e. at a traffic light) would it cause a hiccup when locating me. For example, at one stop light, it located me about 30-50 yards to my right on the road perpendicular to me. But as soon as I started moving, it picked me up correctly. Overall, it appears that the GPS issues have been improved. Probably not completely fixed, but it was a good experience compared to before the update.

Thanks everyone with your test results! May I ask you to add where you had your GPS? Direct view of the sky? Through windshield? Hidden under under your dash? Locked in your trunk? ;-)

I was holding it for a little while, but then placed it in my cup holder by my shifter, then on the passenger seat. Either spot, it didn't lose its GPS lock.

Has anyone with the knowhow attempted to see what it is exactly that was changed?
Sent from my SAMSUNG-SGH-I897 using XDA App

vintagephone said:
Thanks everyone with your test results! May I ask you to add where you had your GPS? Direct view of the sky? Through windshield? Hidden under under your dash? Locked in your trunk? ;-)
Click to expand...
Click to collapse
It was sitting on the passenger seat during my drive. I don't have a car mount for it yet.

Tested mine today on my drive home after flashing JH7. It worked great (though mine worked decent on JF6). It found 8 satellites instantly after opening my gps test app, and locked on to 6 in under a minute. I drove home on the freeway for about 30 minutes with the phone in a car dock doodad and it never lost a single satellite lock.

I had flashed the vibrant files onto my captivate before and GPS worked amazing. I updated and yes it could find me indoors and outside, but the actual GPS lock was pretty much a street away from my actual location. It also lost lock multiple times. I am restoring my phone back to the way it was before the update. My GPS could get a lock indoors with no circle around me and it was 10x more accurate than it is after the update.

I tried to do the update earlier today, and it said it failed. I didn't think much of it. I went for a walk in the park later, and turned on My Tracks, thinking it would be a good 'control' to see how much better the new update would be once I got it working.
It took <10 seconds to lock, but I was outside in a park. After it got a lock, I hit record, put the phone in my pocket, and walked around the park.
http://maps.google.com/maps/ms?ie=U...68140665381380.000490e8a97287c8ebf1b&t=h&z=18
It's pretty much dead on, off by no more than a couple of meters anywhere.
When I got home, I checked back at the forums, where it was pointed out to me that for some people, the update claimed to fail, but actually updated. I checked my About screen, and sure enough, it updated.
So, while I don't recall it being particularly "bad" outside before, with the new update, it worked just fine in my pocket.

If your GPS seems fixed, please post your GPS settings. My update didn't complete successfully and GPS now is worse than before.

Here are some examples of errors from my track. It got me thinking: could the Body Glove case be getting in the way? I'll test it naked this afternoon.
[/IMG]

alkiter If your GPS seems fixed, please post your GPS settings. My update didn't complete successfully and GPS now is worse than before.
Click to expand...
Click to collapse
won't let me link to another thread because I'm new but....
Settings:
Session Type - Tracking
Test Mode - S/W Test
Operation Mode - MS Based
Start Mode - Hot Start
GPS Plus - On
Dynamic Accuracy - ON
Accuracy - 50 (Able to alter/update)
Use Skyhook - OFF
Use PC Tool - OFF
Server FQDN Type - Auto Confi
Server - h-slp.mnc410.mcc310.pub.3gpp (Which is now locked down and unable to overwrite)
Server Port - 7275
SUPL Secure Socket - ON
AGPS Mode - SUPL
I have not updated after seeing the problems everyone is dealing with. I DID change my gps settings to this and have noticed a significant improvement. Thanks!
EDIT
Of course I had to change "Server FQDN Type" from auto to custom in order to keep the new server.
Click to expand...
Click to collapse

This was a quick walk from my car to work this morning using My Tracks. It should show straight lines along the aisles but apparently the GPS still thinks I jump back and forth 30 feet at a time. The phone was in my front pants pocket, battery side out. JH7 was applied successfully yesterday. I'd say GPS isn't fixed.
I have to add I haven't had many problems with Runkeeper and GPS. The paths it records are almost perfect. Why My Tracks and most other GPS programs have such a big problem I have no idea.

GPS fix for Captivate- Share experience

Hi all,
I found out that Captivate has GPS chip problem when it is COLD.
If you can warm it up it will work fine.
You can try it in warm environment.
While it is working, try to turn on AC in your car to cool it down and you will see it say GPS signal lost.
Turn off the AC and turn on the Heater to warm it up, GPS signal will be OK.
Good luck.

Interesting. Thanks for the tip. Will try it out in my friends cappy. He has issues with his GPS but mine has always been fine. Never had a problem even once.

I installed effingps.zip and went from no signal to 7-9 satelite locks in 10 seconds INDOORS.
great fix
knighted4

knighted4 said:
I installed effingps.zip and went from no signal to 7-9 satelite locks in 10 seconds INDOORS.
great fix
knighted4
Click to expand...
Click to collapse
Can you post a link to the file or post the zip file.
Sent from my SAMSUNG-SGH-I897 using XDA App

It's in Trusselo's EFFIN EH ROM thread #140
A simple search for effinGPS.zip found it.

ctrclckws said:
It's in Trusselo's EFFIN EH ROM thread #140
A simple search for effinGPS.zip found it.
Click to expand...
Click to collapse
Will that work on CM based roms? I'm guessing no, but I haven't been able to find an answer anywhere.

And here's a link, for those who want it
http://forum.xda-developers.com/showpost.php?p=19631418&postcount=140
Good luck. I haven't flashed this yet, but will soon.

Well....i get a lock now!!!
Sent from my Samsung Galaxy S Captivate on Blue Apex

Temperature doesn't seem to affect mine. And no 'fix' has ever worked for me.
I don't care how long it takes to lock as long as it doesn't drift.
I did notice though, that the time is off by 24 hours when I do get a lock (according to GPS Test and GPS Status).
When I connect to my external Bluetooth receiver it is spot on.
Has anyone else had this experience? My guess is that the firmware is returning the wrong time, and that is making the positioning calculations impossible.

can someone explain why temperature would effect the GPS in any way? thanks..

zinkoxyde said:
When I connect to my external Bluetooth receiver it is spot on.
Has anyone else had this experience?
Click to expand...
Click to collapse
Not sure if you mean time, or GPS being spot on. I haven't paid any attention to time when using GPS. But I have an external one, and it works MUCH BETTER, pretty much what I would call spot on.
However, the last couple times I"ve used it my phone has locked up. I am thinking it is the BT program I am using in order to use the external GPS. What blue tooth program are you using?

Will this work for my Captivate running mosaic 9?
Sent from my Captivate running Gingerbread

ewingr said:
Not sure if you mean time, or GPS being spot on. I haven't paid any attention to time when using GPS. But I have an external one, and it works MUCH BETTER, pretty much what I would call spot on.
However, the last couple times I"ve used it my phone has locked up. I am thinking it is the BT program I am using in order to use the external GPS. What blue tooth program are you using?
Click to expand...
Click to collapse
Both the time and the GPS location are correct when I use an external BT receiver (Delorme BT-20), but the time is exactly 24 hours off. That could definitely cause drift after initial lock (not to mention cause problems locking in the first place).
I use "Bluetooth GPS Mouse" by Argotronic. There is also a problem with the Captivate's Bluetooth implementation from what I've read. My bluetooth headphones, gps and obd-ii car scanner tool tend to lock up my handset from time to time. It seems to have a problem with sustained serial data communications over bluetooth.
Bluetooth GPS Mouse seems to be pretty stable as opposed to the other BT programs I've used, I guess you get what you pay for. It's a real hassle to drag around two devices on the off chance of needing directions.
I seem to remember stock AT&T Eclair being pretty good with GPS.
---------- Post added at 08:57 PM ---------- Previous post was at 08:48 PM ----------
grndnl said:
can someone explain why temperature would effect the GPS in any way? thanks..
Click to expand...
Click to collapse
Some electronic components are sensitive to temperature. Temperature changes conductive properties, among other things (for example, metal expands when heated). Heat dissipation could also be a factor. Electronic boards can warp, components can separate from the board or the solder can crack. More likely in this case, it just looks like it's working. I've seen tons of people claiming different things have fixed the GPS. Until I can get a lock in standalone mode, and keep it, I'm not calling it fixed.
---------- Post added at 09:52 PM ---------- Previous post was at 08:57 PM ----------
Seems I wasn't crazy about the time thing, but apparently it has only manifested since 2012 rolled around:
code.google.com/p/android/issues/detail? id=24000
This article is about the Tab, but it looks like it is across the board.

Hm i never really thought temperature could affect the gps chip, might have to do some testing.

expansion and contraction of metals possibly fouling the antenna connection is the only real thing I can think of. Anyway, for me there never was a real fix. moving to GB really helped but not enough to make the GPS really reliable. I finally got a replacement phone moving to a build 1101 and that has a pretty good gps that is useable in most circumstances and probably as good as a phone without dedicated antenna can get. Captivates all should have been recalled due to bad gps hardware in my opinion..of course that would have cost samsung a fortune. The phone is great otherwise.
brentett said:
Hm i never really thought temperature could affect the gps chip, might have to do some testing.
Click to expand...
Click to collapse

did think heat could affect the gps chip, might have to do some testing thanks!

Is it true?So unbelievable!

Sounds like confirmation bias to me... I have had equally crappy GPS in both warm weather and cold.

BeowulfShaeffer said:
http://forum.xda-developers.com/showpost.php?p=19631418&postcount=140
Good luck. I haven't flashed this yet, but will soon.
Click to expand...
Click to collapse
Did anyone else have luck installing effinGPS.zip?

crazyjerm1 said:
Did anyone else have luck installing effinGPS.zip?
Click to expand...
Click to collapse
Installed. Didn't help a worth a damn.

Bloody crap gps.

Anybody else's gps connectivity generally crap? Seems to take for ever to connect then struggles to keep a connection.
Any known software conflicts? Running stock 2.35 rom.
No trees, walls, flying saucers in the way and Tried various gps info and fixer appear but to no avail.
Starting to really p*ss me off now.
Ta!
Sent from my HTC Desire S using XDA App

Yes, happens to me too. expecially when i go for walks. It takes reaally long time to load. Use Gpsfix ( Google it, Not able to post link because of post count) . It makes to process a lot faster.

khamoshpathak said:
Yes, happens to me too. expecially when i go for walks. It takes reaally long time to load. Use Gpsfix ( Google it, Not able to post link because of post count) . It makes to process a lot faster.
Click to expand...
Click to collapse
Be warned that gpsfix adds air push adverts to your phone. You may want to also instal add-on detector to find and remove them.
OP: Are you using a case? You may find that without root, you can't change the agps server location (mine was set to Asia by default) so it takes a while to lock pulling satellite info via 3g from the other side of the planet!
GPS Status and toolbox (which doesn't need root) forces an AGPS data download on startup and might help. Make sure 3g is on.
https://play.google.com/store/apps/details?id=com.eclipsim.gpsstatus2
Sent from my HTC Desire S using xda premium

Have observed that the GPS fix times are ROM dependent during my journey through many many excellent ROM's available for Desire S. I have even tried the AGPS fix which is recommended in the Dev section which was indeed helping to get a faster fix but the fix wasnt stable afterwards, especially while using apps like endomondo sports tracker..
The first ROM I saw that the GPS was excellent was in MIUI (GB) - without any AGPS or any other market apps or hacks I began to see a fix within 20 secs. Now, I'm presently on Reaper 2.2 (without AGPS fix) and the GPS continues to be excellent (<20 sec fixes).

I'm using ice cold sandwich with GPS+agps fix and find satellites in 3 seconds
Sent by my fingers to your head.

GPS fix issues can be as simple and HW-related as bad contact between the phone cover that includes GPS antenna (I guess it's the lower cover, but it might be an upper cover too), and the golden connector pin on the board. If you test all possible SW workarounds and they don't help - try to locate the antenna and make sure the connection is firm. Look for Vibrant GPS problems, they had such problem in the early batches.

For me the thread AGPS Patch Desire S 3.1 & 2.2 | GET BACK TO RAPID GPS LOCK, CAN LOCK ONTO MORE SATS helped a lot to get rapid GPS lock. Though, I'm not sure if root is needed for all installation methods. Good luck!
P.S.: The described patch is allready included in some custom roms like Endymion.

Jack_R1 said:
GPS fix issues can be as simple and HW-related as bad contact between the phone cover that includes GPS antenna (I guess it's the lower cover, but it might be an upper cover too), and the golden connector pin on the board. If you test all possible SW workarounds and they don't help - try to locate the antenna and make sure the connection is firm. Look for Vibrant GPS problems, they had such problem in the early batches.
Click to expand...
Click to collapse
The GPS and WiFi antennas are in the upper (camera lens) plastic cover, and, yes they use sprung pins to (hopefully) make connection. The phone antennas are in the lower (battery) cover.
I have found that many types of case massively deteriorate GPS reception of my phone. What puzzles me is why some users seem to be entirely unaffected; it's almost as if individual phones vary; even as an experienced engineer I cannot expalin it.

Since cases create mechanical pressure on the phone body and the contacts are very sensitive to their cover bending (they usually have a very light touch), it might be one of the reasons for reception deterioration. Sometimes even a hit of a falling phone can either destroy reception or improve it - saw it happening live on friend's Desire HD, it was very funny to see how the GPS that wouldn't lock properly for weeks, after the phone fell, started locking in 5 sec all of a sudden. Pure plastic cases shouldn't matter for reception otherwise, or at least I can't think of how can they possibly interfere.
By the way, Desire S' GPS is a bit on a weaker side - I compared it side-by-side to my MT4G, and it's always several lock seconds and a couple of locked satellites below. It should be plenty powerful for a good fast lock, though, and that's why I suspect disturbance on the HW side, rather than SW misconfiguration.

now that you guys are talking about cases, I was using a case mate barely there case before... long time ago gps fix was on the slow side (around a min).. but somewhere down the line of moving across ROM's I moved to MIUI GB (with the case still present) and the fix improved (without any AGPS patches or GPS fix apps).. now I dont use the case and have moved to Reaper CM7 based ROM and the GPS fixes are brilliant... looking at the build of Desire S I dont think that the contacts for GPS, wifi or phone antennas are at fault or can change with just a fall.. I can't pin the problem but I definitely feel removing the case has helped the gps fixes.

Jack_R1 said:
GPS fix issues can be as simple and HW-related as bad contact between the phone cover that includes GPS antenna (I guess it's the lower cover, but it might be an upper cover too), and the golden connector pin on the board. If you test all possible SW workarounds and they don't help - try to locate the antenna and make sure the connection is firm. Look for Vibrant GPS problems, they had such problem in the early batches.
Click to expand...
Click to collapse
Seems legit. By so far I am experiencing also constant GPS problem. It really might be the problem. I will make a try and let here know how it goes.

Forwox said:
Seems legit. By so far I am experiencing also constant GPS problem. It really might be the problem. I will make a try and let here know how it goes.
Click to expand...
Click to collapse
Clining contact did not help..
adding some wires to the antena (made some improvement)..
Than i orderd "new antena" for 8 eur form "Taiwan".
no may fix quick and with 12-18m an i does not lose fix anymore..
(and now i have working gps.. after 1 year of trying roms and waiting for better radio firmwares)
---------- Post added at 08:11 PM ---------- Previous post was at 07:38 PM ----------
fasty said:
What puzzles me is why some users seem to be entirely unaffected; it's almost as if individual phones vary; even as an experienced engineer I cannot expalin it.
Click to expand...
Click to collapse
You have first version of gps antenna which has been silently improved..
I bougt new antena (upper cover) and wifi antena is printed the sesame number, but gps antena has an number increased by 10. (which by my means, mean new version)
And with "new antena" i have reliably working gps now.
(htc service (here in SLO) wanted th have the phone one service for 14 day-s thats teh reason i didnt apply for warranty repair)

on stock rom gps is really slow..i have that experience before,actually one of the reason i rooted mine...now,got gps locked in less than 15 minutes...(my gps always turn off,on when want to use navigation only)

oTeMpLo said:
Clining contact did not help..
adding some wires to the antena (made some improvement)..
Than i orderd "new antena" for 8 eur form "Taiwan".
no may fix quick and with 12-18m an i does not lose fix anymore..
(and now i have working gps.. after 1 year of trying roms and waiting for better radio firmwares)
Click to expand...
Click to collapse
That's awesome! Could you please share a link to that item, please? I am really interested in that. I am still fighting with GPS. Sometimes it works, sometimes it don't...

[Q] GPS Problems CM11

Hello, and thanks in advance to whoever contributes to trying to help me here. Heres my situation
I started with a Galaxy SIII [Verizon] on JellyBam [the most recent version before kitkat] I had GPS working just fine, there were some bugs and I saw a KitKat version came out so I figured I'd give it a try, ever since then regardless of what ROM I run I can't seem to lock on to GPS.
I tried CM11 and still to no avail, I get GPS through my location and google maps and such so I am able to get step by step directions but no turn by turn navigation, sometimes I just float along roads as if it knows where I am but it can't 100% lock on. Since then I've done everything short of an ODIN flash because that is such a hassle..
I've tried CM11 nothing on the GPS location end.
I tried LiquidSmooth still couldn't grab a GPS signal
Any JellyBam even RC2 still no GPS lockon.
Anyone got a proposed fix, I even grabbed GPS Status and cleared my A-GPS data, and also tried those work arounds like turning your phone on with location already enabled before the restart etc etc. I just can't get GPS to work. I'm wondering if I'm going to have to ODIN and if somewhere along the line a tweak changed something
Also Question 2 - Do system tweaks like AndroidTweaker and such stay after a full rom reload..
Example; On Jellybam use android tweaker to optimize battery life play with GPS on android tweaker
then I format my phone to another rom [cm11] do those tweaks stil stay there until I ODIN or something?

izzo540 said:
Hello, and thanks in advance to whoever contributes to trying to help me here. Heres my situation
I started with a Galaxy SIII [Verizon] on JellyBam [the most recent version before kitkat] I had GPS working just fine, there were some bugs and I saw a KitKat version came out so I figured I'd give it a try, ever since then regardless of what ROM I run I can't seem to lock on to GPS.
I tried CM11 and still to no avail, I get GPS through my location and google maps and such so I am able to get step by step directions but no turn by turn navigation, sometimes I just float along roads as if it knows where I am but it can't 100% lock on. Since then I've done everything short of an ODIN flash because that is such a hassle..
I've tried CM11 nothing on the GPS location end.
I tried LiquidSmooth still couldn't grab a GPS signal
Any JellyBam even RC2 still no GPS lockon.
Anyone got a proposed fix, I even grabbed GPS Status and cleared my A-GPS data, and also tried those work arounds like turning your phone on with location already enabled before the restart etc etc. I just can't get GPS to work. I'm wondering if I'm going to have to ODIN and if somewhere along the line a tweak changed something
Also Question 2 - Do system tweaks like AndroidTweaker and such stay after a full rom reload..
Example; On Jellybam use android tweaker to optimize battery life play with GPS on android tweaker
then I format my phone to another rom [cm11] do those tweaks stil stay there until I ODIN or something?
Click to expand...
Click to collapse
Try taking the back cover off and screwing tight all the screws. (sounds mad but it actually works, there's a whole thread about this)

sunstreak said:
Try taking the back cover off and screwing tight all the screws. (sounds mad but it actually works, there's a whole thread about this)
Click to expand...
Click to collapse
Okay, I will try that. I think its a software issue though, but I will certainly give it a whirl.

Update: That did not work.

izzo540 said:
Update: That did not work.
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Did you REALLY tighten them? What I mean by that is get yourself a good quality small phillips head screwdriver, not a flat head. Turn those screws on the back with a good screwdriver, they're probably loose. I've had the exact same problem twice and both times this worked like a charm. I also did it for a friend of mine, same result. It's worth the $5 investment. I got a "teeny turner" at my local computer store, worked like a charm.

rgrossie said:
Did you REALLY tighten them? What I mean by that is get yourself a good quality small phillips head screwdriver, not a flat head. Turn those screws on the back with a good screwdriver, they're probably loose. I've had the exact same problem twice and both times this worked like a charm. I also did it for a friend of mine, same result. It's worth the $5 investment. I got a "teeny turner" at my local computer store, worked like a charm.
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I'll be honest I actually didn't tighten them that hard.. I am going to give it a good twist tonight and see what happens because I have started to grab a signal since I did the original turn. But when I did the turn I Also pulled the SIM card and the SD card and the battery for over 60 seconds, I am wondering if that potentially aided inf ixing it as well.

izzo540 said:
I'll be honest I actually didn't tighten them that hard.. I am going to give it a good twist tonight and see what happens because I have started to grab a signal since I did the original turn. But when I did the turn I Also pulled the SIM card and the SD card and the battery for over 60 seconds, I am wondering if that potentially aided inf ixing it as well.
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The first time I thought I tightened them it had no effect. Then I got the correct screwdriver and really tightened them, as in they turned at least 180 degrees each and pretty easily with the correct driver. My GPS will lock from the middle of a highrise in Chicago and get 11 satellites. Prior to that I needed to be near a window and pray that it would find 3. Trust the experience of hundreds of others, get yourself the right screwdriver and try it again. Don't use a cheap screwdriver or flat head, you'll just strip the screws. Get a small phillips, shouldn't cost more than a few bucks.