GPS Navigation workaround-needs confirmation - Vibrant General

I've been flashing the new leak ROMs from TW and Eugene the last few months and my GPS has been locking 8-9 birds in a few seconds within 30 feet with GPS test app. However when using Navigation, it still jumps around after a few minutes and become unusable.
I noticed that while GPS Test locks my location in a few seconds, Navigation still takes a minute or two to lock. I decided to get a lock in GPS test first then switch to navigation with GPS Test still running in the background. I got an instant lock in Navigation. Leaving GPS Test running in the background, I have been able to use Navigation for the last two weeks continuously without any problems. It might be a coincidence and I have nothing other than my experience to back it up. Hopefully a few people can test this out and see if it fixes the problem for them.
ROMS tested: Ginger Clone R1/R2 and Nexus V3.
GPS Test app by Chartcross.

i been using axura 2.2 with jk6 modem. i would say that on average i get a gps lock in about 10-15 seconds. about 80% of the time its just right. other times im like 1 street off. after driving for like 2 mins it corrects itself and is accurate.

My point is that with GPS test running in the background I do not get the "jump to wrong street" anymore. Been working perfectly.

illego said:
My point is that with GPS test running in the background I do not get the "jump to wrong street" anymore. Been working perfectly.
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I need to try it.
Sent from my SGH-T959 using XDA App

illego said:
I've been flashing the new leak ROMs from TW and Eugene the last few months and my GPS has been locking 8-9 birds in a few seconds within 30 feet with GPS test app. However when using Navigation, it still jumps around after a few minutes and become unusable.
I noticed that while GPS Test locks my location in a few seconds, Navigation still takes a minute or two to lock. I decided to get a lock in GPS test first then switch to navigation with GPS Test still running in the background. I got an instant lock in Navigation. Leaving GPS Test running in the background, I have been able to use Navigation for the last two weeks continuously without any problems. It might be a coincidence and I have nothing other than my experience to back it up. Hopefully a few people can test this out and see if it fixes the problem for them.
ROMS tested: Ginger Clone R1/R2 and Nexus V3.
GPS Test app by Chartcross.
Click to expand...
Click to collapse
I noticed the same thing, leave GPS Test running, and Nav locks instantly. Unfortunately I had some freezes in Nav that made me stop using that technique. Some research indicated Google Nav freezes were happening on a variety of different phones, but I didn't go back to the background GPS Test after the bad luck I had. Now that Maps 5.0 is out maybe the freeze problem has been fixed. I'll try it again and see.

Related

DII8 - back to GPS issues.

Anyone having major GPS issues? Seems like it was worse than before. Took forever to get a lock while I was driving, had to stop and turn off GPS/back out of Google Nav, go back in. It got a signal for about 10s then lost it.. with full bars. Anyone else having this problem?
Mine still doesn't work at all. -_-
No problems here ... I usually have it off but whenever I need it, I've always gotten a lock immediately and flawless navigation using Google Maps. Absolutely destroys battery though
Took me 15 min to get a lock on a clear day outside on a fresh reboot and still was off on my location. My touch pro 2 never had this problem.. I could use it inside a building full of metal and still get a lock.. I love the Epic but I would not use the gps in its current state of function for navigation purposes..
Sent from my SPH-D700 using Tapatalk
I think for many, it's still having problems on cold boots. Once it locks, it seems to be fine. I never experienced this though, I only have problems getting GPS signal inside buildings.
nimaim said:
I think for many, it's still having problems on cold boots. Once it locks, it seems to be fine. I never experienced this though, I only have problems getting GPS signal inside buildings.
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No the opposite is true, the problem people are reporting, including those above, are on warm starts where, on occasion, old expired ephemris data is in cache and causes problem getting a lock in otherwise good conditions.
This is much tested and there is a good workaround. By setting the Epic to cold start you overcome this problem, it is stickied as the workaround on the large epic forums elsewhere:
Enter GPS debug/settings application by typing *#1472365#
click "Setup" tab
click "position mode"
Click "starting mode
Enable "Cold Start"
Back out.
Whats the difference between warm start and hot start
mine shows me and my wife in texas half the time and we live in florida, never did it before this update. seems to be picking it up from the wifi I use in my house, as thats ATT and they are SBC and i believe they are in texas, but i never rehooked her phone up to wifi and lattitude shows her in texas at different times and the thing shows me in texas as well, its like cell triangulation doesn't work worth a damn.
nimaim said:
No problems here ... I usually have it off but whenever I need it, I've always gotten a lock immediately and flawless navigation using Google Maps. Absolutely destroys battery though
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^ Same for me. Never an issue and even locks indoors. Yes it eats batteries for lunch though.
Sent from my wrist watch calculator
The GPS is worthless and can not be relied on. Yes, on occasion it does work and on that rare occasion, it seems to work well. However, on the five occasions that I have NEEDED it, it has failed me completely, NEVER locking on my location. These occasions have been outside with clear sky. When I use GPSStatus, it shows 9 sats but 0 lock. I just don't understand how it can see 9 sats and not lock at all. I have a >10 year old POS handheld GPS that with no network, no maps, no anything locks every time within one minute. Samsung must have actually had to try to f--- this up.
Yes I have applied the cold start "fix" and it has made no difference, sometimes the GPS works and most of the time (especially when I NEED it) it does not.
Using the cold start method posted by aero1, my GPS.... sometimes works. Sitting in my car on a clear day with full signal, the GPS can take up to 5 minutes to get a lock. If I'm moving, It will sometimes lock onto me but still say "searching for GPS" so it won't give me driving directions... even though it can see where I am.
In cases when it does work, it lags a LOT. Sometimes it won't update my position for a minute... which is useless if I have a turn coming up that I don't know about. It is always jumping to where I am every few seconds. Google nav on the EVO was perfectly smooth. It stuck with me around turns and never lagged. Always perfectly accurate. It is the only thing I miss from the EVO.
I've completely given up on the GPS and use my Garmin (/wrists) whenever I need something reliable
hydralisk said:
Using the cold start method posted by aero1, my GPS.... sometimes works. Sitting in my car on a clear day with full signal, the GPS can take up to 5 minutes to get a lock. If I'm moving, It will sometimes lock onto me but still say "searching for GPS" so it won't give me driving directions... even though it can see where I am.
In cases when it does work, it lags a LOT. Sometimes it won't update my position for a minute... which is useless if I have a turn coming up that I don't know about. It is always jumping to where I am every few seconds. Google nav on the EVO was perfectly smooth. It stuck with me around turns and never lagged. Always perfectly accurate. It is the only thing I miss from the EVO.
I've completely given up on the GPS and use my Garmin (/wrists) whenever I need something reliable
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Same results I'm having now. Using the workaround (cold start) it's hit or miss whether I get a lock or not regardless of how many sats my phone sees.
I put it to "cold boot" and am still getting shaky results. I used it to find my way back to my apartment but it kept putting me on the road NEXT TO the highway and jumping back and forth. Did this again when I was returning from work during lunch just to see if it happened again. Yep, gonna have to lug around my Garmin from now on.
Just sad.
Try this, weird but is working for me.
I installed an app from the market called GPS test to test my GPS signal strength.
Whenever I launch GPS test and then run google navigation it locks on within 10 seconds. If I don't launch GPS test after a cold boot then it takes forever to lock on.
So far this has been working for me for a couple of days. Might be a fluke though.
othan1 said:
Same results I'm having now. Using the workaround (cold start) it's hit or miss whether I get a lock or not regardless of how many sats my phone sees.
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I've got three epics which allow me to do extensive controlled testing.
before applying the cold start fix my results were as follows on all three when in perfect sat condensations:
a) about 75% of the time no problem with locks
b) about 20% of the time I was getting many sats seen and none locked (expired ephemeris);
b) 5% or less I was getting few sats seen where they should be seen (bad almanac)
I applied cold start method to one Epic and for several days never experienced a failure to lock. I applied cold start to second Epic and now both Epics with cold start applied have gone over two weeks without a single failure to lock. I am now testing some other methods of flushing out cache
Top me this points to main problem being cache which for me ahs disappeared with cold start -- although there are other GPS problems on epic)
Other issues -- not addressed by cold start fix -- are inherent low SNR, SNR thresholds, samsung hacking the difference between fine and coarse results (30 meter hardcoded), these can all cause problems with GPS.
That said there is absolutely a repair of the main cache problem with cold start, I now see my 3g light up every single time I invoke GPS, with non net based applications, reflecting an objective and factual assistance data download --and without cold start I often would see no data usage on invoking GPS meaning failure to pull assistance data.

[Q] GPS lock issues?

Anyone else having issues getting a GPS lock? I'm sitting inside a building but my Hero would always lock here, especially after resetting the AGPS data with GPS Status program. Tried that with the Shift, and still not getting a lock even after a minute. Not sure what else to try.
Typically I keep mine turned off, but I just turned mine on and went to Maps and it locks my location in.
mine took a little while to initialize (indoors) but it locked in within 30 seconds.
No issues here. Inside my GFs apartment it locks very quick and is probably about 5-10 feet off according to google maps. My moments GPS never locked or worked so I'm extremely happy with the GPS quality on this phone.
The first lock took around a minute to get. Now it gets a solid lock in just a few seconds, if that.
A little off. Not as bad as my gfs Samsung Instinct, but it does often have me a few hundred meters from my actual location.
-NuAngel
Sent from my PG06100 using XDA App
Me and my girlfriend are having constant problems with the gps lock. Seems to work when it wants and disconnects randomly.
Sent from my PG06100 using XDA App
GPS is spotty for me as well. GPS Status won't even get it working for me when it won't work.
When it does work it is not as accurate as my Heroc was. Hopefully this gets some love in any updates.
GPS is great for me. The only issue I've run into is that when I go from Maps to Navigation, my SD card gets mounted as read-only for some reason.
I know a couple of days ago I tried to use my Google Maps/GPS and it couldn't get a lock on me. It was like going crazy or something. However, it was snowing and kinda foggy so maybe that had something to do with it. It worked the next day though when the sky was clear.
No gps lock on my end either. Also tried the gps status clear....nothing so far
EDIT: just opened maps for about a minute or so and it locked finally. Closed maps then opened again, locked within seconds.
Bumping this thread: I have issues with getting a GPS lock. If I open Google Maps, I'll never get a lock (at least not before the phone goes to sleep - 60 seconds). I open up GPS test, which I downloaded from the market. It gets one satellite to lock right away. Sometimes two. Then it takes forever to get 3-4 more (at least 60 seconds). I can then go into google maps, and it will get a lock within 15-20 seconds. But if I let the phone go to sleep, and open up maps again, I don't get a lock, unless I do the GPS test. And sometimes that doesn't even work. I've done the GPS Clear thing, via the epst codes (##GPSCLRX#), and that doesn't seem to do anything. I'm running the MikShiftG 1.1 rom. I'm going to make a nandroid backup, and see if that happens on a stock 2.3.3 rooted rom.

[Q] Does anyone else have this problem with their GPS?

Ok so my problem is whenever I leave my phone on for an extended amount of time the gps just will not lock at all but after I reboot the phone it locks within a couple of seconds. This has been happening with each radio Di01, dj05, and Dl09. I was just wondering if anyone else had this problem and whether or not it is a hardware problem?
Nope. With DI01 I had issue where it took forever to lock, if at all. With DL09 I have no issue at all. Connects quickly and just works.
Sent from my SCH-I500 using XDA App
yeah. I thought I was the only one noticing that.
If I go into the gps setup (Dial: *#1472365#) and then go to command and start the gps, if the phone has been running for a long time, it will just sit there and say Number of Satellites: 0
But if I reboot, it starts finding satellites immediately and gets a fix super quickly.
Di01 was a nightmare with GPS locks...took upwards of 10 min or so. With dj09, I lock within 5 seconds max.
Sent from my SCH-I500 using XDA App
anyone notice even though the GPS locks, it's off by a lot? went back to DJ05 for now....on the wife's Fascinate
I may be seeing the same thing as you Jaybap. Can you elaborate what a "long time" is since boot that you're seeing? 12hrs? 2 days?
I had horrendous issues w/ GPS on OEM DI01 prior to playing around with Adryn's local xtra.bin solution. I'm now on OEM DL09 and for a day or so after the install GPS would lock w/in 10-15 seconds outside. I leave GPS and VZ Assist on all the time. Accuracy is dead-on for me. I'm using GPS Test and GPS Status apps for testing.
I am now noticing that after some amount of time (at least more than 24-36hrs after installing DL09, no boots since install) that my GPS tests took longer to lock (>1 minute). The GPS icon in the notify bar wouldn't animate while searching for satellites and at one point GPS Status seemed to hang/freeze (no FC). So after i saw this thread I booted the phone. Now the GPS icon animation is back when initially searching for satellites and i get a lock in 10-15sec. So ya might be onto something...
BTW - I'm guessing the GPS icon animates when searching for satellites; becomes a static icon once a lock is achieved.
How do I dl and install DL09?
Having GPS capability was one of the reasons I upgraded from a non-smartphone to a smartphone. Just my luck that the smartphone I choose has serious GPS issues.
How might I go about dling and installing this fix for the GPS?
Thanks.
keena It's the same way with my phone the gps icon stops animating and this occurs after i leave my phone on for a few hours and it takes minutes to lock when it used to take seconds.
I have the same issues. I can get a lock in seconds after I reboot, but if my phone has been on for more than 10 min getting a lock can take as long as 45 min or more, if at all.
Sent from my SCH-I500 using XDA App
Did you guys get your phones in September because I have a feeling they launched some of these with faulty hardware and that's why these updates aren't helping us.
Jaybap said:
Did you guys get your phones in September because I have a feeling they launched some of these with faulty hardware and that's why these updates aren't helping us.
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Yeah, I nabbed mine on October 1st, so basically September.
But I'm still wondering if it's software related. Like maybe one thing (app? system?) in the background is trying to access the gps and won't let go of it for other apps to use.
Also, possibly unrelated: are you guys using Task Killers at all?
I also have the same issue as the OP. The only time I ever reboot my phone is right before I use Runkeeper... otherwise the Gps never locks.
I'm on dj05 using jt's clean rom & voodoo.
Sent from my SCH-I500 using Tapatalk
I bought my phone the 2nd week of December. I don't run any task killer or battery minder apps...basically just a rooted OEM DL09.
I noticed that if you turn on the GPS and leave it on all the time. It will always lock on fast whenever you turn on Google Navi/Maps. If you turn on the GPS, turn it off for a while, and later, turn on Navi, it will sometimes take forever to lock on.

DL30 and GPS

I still notice the gps still takes long to lock in. any suggestions?
Strange, Mines been locking on in no more that 45 seconds, Usually 10 seconds since DJ05...
DLO9 - using leaked 2.2 Rom
My GPS is taking much longer to lock also - i guess its the trade-off for getting 2.2.
The leak 2.2 rom run better than the other Roms I tried.
Sent from my SCH-I500 using XDA App
Odd, mine locks on better than any 2.1 rom and almost instantly.
Oddly enough, got worse on superclean 2.2. With DL09 and superclean (with help from gps status) i was locking within 10-15 seconds, now it takes upwards of 45s-1minute, if it locks at all. A little disappointing, but nothing to make me dump 2.2. Crossing my fingers that it'll get better....
My experience with all 2.2 ROMs so far has been that GPS either locks near-instantly (<15s) or absolutely will not lock at all. It seems to be about a 50/50 crapshoot. If it doesn't work, turning GPS off, waiting a few moments, and then turning it back on and trying again *usually* gets it working.
Granted I haven't tried since jt released the updated recovery, so I'll have to check a few more times and report back.
Try flashing the DJ05 GPS fix that was tested on people with Dl01?
I've long given up on the GPS, I just use my Iphone 3GS that without data connection still locks on really fast.
I tried DL09 when first going to Superclean 1.0. The GPS would lose the signal then regain it. This happened about three times during a hour long route.
Flashed DJ05 last night and tried the GPS again this morning and not once did it lose the signal driving into work.
My gps doesn't WORK AT ALL with DL30 superclean 1.0.
Mine locks in 10 seconds or less running DL30 SuperClean 1.0 with DJ05 radio.
I have been having a problem with GPS on DL30/DL09 also. Here is how I got it to lock today in less than 10 seconds.
1. Download GPS Status from the market.
2. Run GPS Status and let it download the AGPS data.
3. Go into settings>GPS & Sensors>Auto-download AGPS data and set it to never.
4. Close GPS Status and reboot phone with GPS turned on.
5. Once booted, run GPS Status and hopefully you will get almost insta-lock.
6. Open Maps or Navigation and you should be good to go.
Next time you try GPS and it doesnt lock, go back into GPS Status>options>tools>download and manually download the AGPS data then reboot.
Its a pain but its the only way I know of thus far to get "insta-lock" after going Froyo on my phone. I dont use my GPS all that often so this method isnt a big deal for me, but if I relied on GPS daily, I would seriously consider buying a different phone at this point. That or try and get a refurb that has a working GPS like some people here seem to have.
mastamoon said:
I have been having a problem with GPS on DL30/DL09 also. Here is how I got it to lock today in less than 10 seconds.
1. Download GPS Status from the market.
2. Run GPS Status and let it download the AGPS data.
3. Go into settings>GPS & Sensors>Auto-download AGPS data and set it to never.
4. Close GPS Status and reboot phone with GPS turned on.
5. Once booted, run GPS Status and hopefully you will get almost insta-lock.
6. Open Maps or Navigation and you should be good to go.
Next time you try GPS and it doesnt lock, go back into GPS Status>options>tools>download and manually download the AGPS data then reboot.
Its a pain but its the only way I know of thus far to get "insta-lock" after going Froyo on my phone. I dont use my GPS all that often so this method isnt a big deal for me, but if I relied on GPS daily, I would seriously consider buying a different phone at this point. That or try and get a refurb that has a working GPS like some people here seem to have.
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Didn't work for me. installed DJ05 and still nothing :[
Ive had some weird experience with GPS. DI01 My gps was garbage. like 2 mile blue sphere. DJ05 my gps was pretty good... locked accurately but took about 2 minutes. Borked my phone trying to edit some stuff... redid DJ05... GPS didnt work again... did DL09... GPS still didnt work... redid DL09... GPS worked pretty well again... DID DL30... GPS locks nearly instantly and almost perfectly.
It seems like every time I flash I have different results...even when sometimes I'm flashing the same roms from the same sources. I don't really get it... I'm almost in the same areas so it should be consistant.
I always clear all the caches and everything :\
Ive done many different gps tests and here is whats happening...if you try to turn gps on through the notification pulldown...it takes a while. If you turn gps on through settings...location and security...standalone gps...its instant. After turning gps on through settings, it will work from the pulldown every time instantly. Basically it needs to be turned on from settings for the 1st time after a reboot...then the pulldown will be instant. To test this, reboot phone with gps off, when it boots turn gps on from the pulldown...it wont lock...go to settings and turn it off then on...it will lock instantly. Like i said, it seems to need to be turned on through settings initially, then it works instantly any way you use it...hope i helped.
That's strange. I haven't had an issue locking on since DI01. I also love how fantastically loud the Nav directions are now. I agree that gps status can greatly accelerate the locking on process.
Kamar234 said:
That's strange. I haven't had an issue locking on since DI01. I also love how fantastically loud the Nav directions are now. I agree that gps status can greatly accelerate the locking on process.
Click to expand...
Click to collapse
daym you!! lol. maybe it's time to go get a replacement?

Why does my GPS STILL not work?

Loving the phone and the community here, but I'm starting to get frustrated with this thing. Before DL09, I could never get a lock. After updating to it (manually, before it was an ota), my gps worked for the first time ever. However after switching to DL30 and subsequently EB01, I can no longer achieve a lock. I thought this fix was already taken care of? How come the newer radios aren't working on my phone?
I'm currently using the EB01 radio on Superclean 2.4
You turned on all of the GPS settings (Google, verizon, standalone) and cannot get a lock?
Im getting a lock on EB01 way faster than DL09.
I'm on super clean 2.2 and I have no issues with GPS. Have you considered that your phone's GPS may be faulty? I'd exchange it.
Sent from my SCH-I500 using XDA App
I leave the GPS on all the time. In most buildings it keeps the lock. I really hope that leaving it on makes it easier to live with.
Sent from my SCH-I500 using XDA App
In my foray into EB01, GPS was flawless... for a day. After that I couldn't get a lock to save my life, rebooting clearing stats etc.
The difference was four friends came in from out of town with GSM android phones. We all were having issues. It is like they were kryptonite.
Of course it is ridiculous to think that one GPS would mess up another since they are passive devices. I would advise taking this as weak entertainment or with a grain of salt. DL09 is back yup normal, usually 10 seconds sometimes two minutes for a lock.
In my opinion, getting stable froyo on these units won't be so easy, and I hope we get a few timely releases until they get it right. If EB01 does go OTA, I am screaming bloody murder the moment my clock goes out of synch.
Swyped w/ XDA App. When in doubt, mumble.
try turning on your wifi network (even if your not on a wifi network) this gives you a pretty good position.
xtrimsky said:
try turning on your wifi network (even if your not on a wifi network) this gives you a pretty good position.
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For positioning, I just use the cell towers. That's fine. Its for turn-by-turn directions where I really want the GPS lock.
After 48 hours or so of uptime my GPS is definitely not as quick to fix as it was under DL09. I'm sitting in my favorite armchair looking at a fix with three satellites whereas I used to get a fix with 7 or 8 and an accuracy of 8 feet. After a reboot my fix time drops to about 15 seconds and I get a lock on 8 satellites.
these have been my experiences with Super Clean 2.x (voodoo and nonvoodoo):
- sometimes turning the GPS off from notification window and back on again will do the trick
- sometimes when the above doesn't work, turning it off and then back on again from within settings (where you need to click "agree") will be more effective. In this case I've even noticed a difference between doing this by going directly into settings vs. letting Google Nav tell me that GPS is disabled, and agreeing to let it take me to the location settings.
- bizarrely, sometimes opening "GPS Test" app (market, free) identifies satellites more immediately than Google Navigation. Then after GPS Test can see them, I go back into Google Nav and it will see the satellites right away.
- if all else fails rebooting the phone has always done it (and then doing the same dance described above)
Don't get me wrong I wish it were more stable/reliable but the above seems to do the trick. When it locks at all - it locks right away. I have just forced myself to make sure that the GPS is working before leaving the driveway, or else I run the risk of being frustrated when I need to make a snap decision to go somewhere that requires navigational aid. For me it's almost as if the Android OS isn't properly wrapping its arms around the GPS hardware than an issue of the apps locking a fix.
Last night I almost missed a flight and even went as far as to say "I really need to start bringing my old GPS around with me again". I really hope to avoid this.

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