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So a little about my phone. I am running a custom ROM Fusion 1.1 with a custom Kernel from Team Whiskey Core V3 2.1 also have OCLF. My phone right after flashing the new ROM seemed to lock on quickly to several Sats 5 plus every time. But for no reason and with no adjustments to the default settings I now have a very hard time locking on to any Sats. Takes 10 plus minutes and only can get a few to lock.
So the only things I have changed on my phone recently is trying a few different Kernels. Would this even effect the GPS sat locks at all? I would think not but??
Anyone have anything new that I have yet to read about that they have tried that seems to make the GPS better?
My phone's GPS might just suck who knows.
Thanks in advance!
Did you try digital toddys fix?
s15274n said:
Did you try digital toddys fix?
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Yea I did.. Just went outside and switched to Cold then delete GPS data ran fix for 10 minutes and got a lock on 4 sats. Switched back to Hot and didn't seem to help much.
You did the reboots and everything?
Odd man, if that didn't work I am at a loss. Hopefully others can chime in for you.
I would think the ROM is what affects GPS signal the most. I was running Bionix 1.9 with KK kernel and the GPS was money. Now running Obsidian V1 (didn't switch to V2 because I read people were having GPS issues on it), and GPS still works great. In fact, when using Car Home, it shows the exact street address I am at.
jonwilly said:
So the only things I have changed on my phone recently is trying a few different Kernels. Would this even effect the GPS sat locks at all? I would think not but??
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from what i understand, yes a different kernel can affect gps because the kernel contains the drivers. it is my understanding that this is why the 2.2 roms have working gps now: an 'official' kernel was leaked and the gps drivers were pulled from it. however the rom will also affect gps. for example, i was running bionix 1.9.1 and gps was great, flashed bionix final and gps went to ****, flashed fusion 1.2 and gps was working again.
My Vibrant's GPS only works fine with Macnut R10, no other version of Macnut or any other ROM (Team W,ASOp,Axura,JK2 stock, etc). Only works with Macnut R10. I checked the GPS files and they seems to be the same, so I'm going crazy trying to figure out what else is different so I can make my GPS work on other ROMS...
It's like this,,, After Flashing any ROM I go to lbsTest, Delete GPS Data and then Test GPS,,, I'm using the same exact location to the the test with all the ROMS, after 1 minute I only get 2 or 3 birds, but non in use, after 2 minutes I get between 6 to 10, but still non in use., after 4 to 5 minutes I get connected to 3 or 4 and thats it...
Now, If I flash Macnut R10, and do the same steps,,, in less than 3 seconds I get 10 birds in view and in less than 10 seconds I got connected to 6. This happens every time I do the test.. I have done the test several times with the same results.
At first I though it was the kernel... but after flashing the JK2 kernel the GPS still working just fine.
I'm running my Vibrant on At&t if that can help to find the answer...
Thanks...
PS... before someone else say it... Yes I did the steps to Delete the GPS Data, change to Cold start, get the birds, reboot, etc,etc,..... that does not work as soon as I restart my phone its gone...
Thanks
Interesting! Considering my only disappointment with this phone is the GPS and I am having the same issues with Obsidian and every other ROM, I will download Macnut, that I haven't tried.
Did you Odin in between ROMs?
most of the time settings carry over even after the system has been wiped. Odin is a surefire way to get a clean install on a phone.
I've run most ROMs and on all of them my GPS has worked without a hitch, I can usually get a lock in less than a minute at the most.
If it's not working out for you at first, drive around in your car with GPSTest running so it can re learn. You probably don't even need to clear out GPS data under lbstest
jrizk07 said:
Did you Odin in between ROMs?
most of the time settings carry over even after the system has been wiped. Odin is a surefire way to get a clean install on a phone.
I've run most ROMs and on all of them my GPS has worked without a hitch, I can usually get a lock in less than a minute at the most.
If it's not working out for you at first, drive around in your car with GPSTest running so it can re learn. You probably don't even need to clear out GPS data under lbstest
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Been there done that... it does not work...
xgibran said:
Interesting! Considering my only disappointment with this phone is the GPS and I am having the same issues with Obsidian and every other ROM, I will download Macnut, that I haven't tried.
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Be sure is R10, that's the one that worked for me
no one?..............
So I've done a lot of searching and haven't really found anything definitive. I've found that with some roms I'll lose GPS signal after a certain amount of time (say 10-30 minutes) and have to turn GPS off and back on or reboot the phone. I saw something about flashing a different radio may make a difference. Kinda just wanted to see other peoples thoughts on the issue or if maybe there is something else I can do before I go flashing a different radio.
Currently running CELB 4.1 and baseband 2.42.01.04.27 and I have the issue.. I've had it with most of Tazz's roms as well. KaosFroyo is the only one Ive used that I've never seen the issue with, but I'm really diggin CELB right now and this is the ONLY issue I've got with it.
Have you tried GPS status in the market? I know it will help you lock in a signal, so it would make sense that it would also help keep your GPS locked in.
Bayhill Jacket said:
Have you tried GPS status in the market? I know it will help you lock in a signal, so it would make sense that it would also help keep your GPS locked in.
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I have now.. I did the reset and download options in the program. Too bad this isn't something I can quickly test. I'll report back with the results. Thanks!
I have noticed this as well. Last time it happened to me it was 4:30 in the morning, and the "GPS lost" message came up about 180 seconds before I had to make two freeway changes in an area I'd never been before. (CELB 3.9 and same radio as your case). Fortunately for me I had reviewed the route, so I more or less knew what to do.
If I recall correctly, it has always happened after the Nav app had been running for a fair bit of time - at least 30 minutes or more.
However, I don't know if it is something about the root ROMs or not - I started using rooted ROMs back in March or so, so I really don't have a tremendous operating baseline on stock 2.1 ROMs to compare it to. Maybe it is a problem there, too!
If I recall correctly, the last time it happened, I just pulled up GPS Status and asked it reload the aGPS state (without exiting the Nav app), and the Nav app seemed to gracefully recover.
Annoying? Yeah. I don't know what can be done about it, though - like the "undead calls" problem, it happens so infrequently that it is hard to know whether or not a ROM change actually fixes the problem.
bftb0
I had the same problem with every 2.2 rom I used GPS with. I decided to go back to 2.1 because I have been needing GPS alot more often lately but I havent tested it out since I made the switch. I'll try it out today and report the results tonight.
This same thing seemed to happen on the 2.1, CyanogenMod 5 based ELB by Conap as well. If it is happening with all of the 2.2 ROMs, I wonder if it's just a CyanogenMod issue?
See http://forum.xda-developers.com/showthread.php?p=6812308#post6812308 (this was not the only person reporting it, if you search that thread.)
I really don't think it's ALL 2.2 CM roms though. I've gone on 7 hour car trips with Kaos Froyo without a single drop.. to and from. I've seen another theory somewhere around here about it being certain hardware revisions that act this way with certain software builds. At lease we've got a thread dedicated to this issue now.. maybe we can get something figured out.
Still don't know if the GPS status program helps.. I left navigation turned on for a bit sitting in my house and it stayed connected for the half an hour I left it, just don't think that's gonna be an accurate test with not moving around and all. If it doesn't work I will try a different radio.. I saw somewhere one guy had good luck with a specific older version radio. If that's what it comes down to I'll try.
I have been having issues with the GPS working on both of my phones while using 2.2 roms. I switched to 2.1 a few days ago and I used the GPS on my way to work this morning and didnt have any issues. I also had to flash Senseable a couple of months ago while on a road trip because I was tired of loosing the GPS signal every half hour. It may be a CM thing.
Im having the same issues as well. Haven't found a fix yet..
I've had this issue, after I flashed KaosFroyo(v36), and XTR(4 i think). I recently unrooted using Flashback21 v1 and flashed with the radio included. I have gone back to xtr 5 now and have had no lost gps in over a week. Don't have a clue as to why. hope it helps someone.
deadbot1 said:
I've had this issue, after I flashed KaosFroyo(v36), and XTR(4 i think). I recently unrooted using Flashback21 v1 and flashed with the radio included. I have gone back to xtr 5 now and have had no lost gps in over a week. Don't have a clue as to why. hope it helps someone.
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give us another update. is the gps problem still fixed for you? Thanks!
I have flashed the radio directly with the verizon zip file that is around and I still get inconsistent results But it always drops a signal eventually in about a 1/2 hour
Jrocker23 said:
I have flashed the radio directly with the verizon zip file that is around and I still get inconsistent results But it always drops a signal eventually in about a 1/2 hour
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I've seen it on several ROM's as well. From what i've messed with, it doesn't seem to be dependent on the autokiller memory preset, radio firmware, or amount of overclocking i'm doing. It doesn't seem to be dependent on how many programs are running either. I usually have nav and pandora running while i'm in the car, and sooner or later, the gps poops out.
I feel like it seems to happen less, now that i'm back to using the on-demand governor. but that could just be in my head.
I've had to go back to a 2.1 rom because of it. Its very annoying when the goa signal gets lost right before the exit ramp.
Sent from my Eris using XDA App
Im thinking of going back to a 2.1 rom as well...
I have also seen the same results on any 2.2 or higher rom. I have since returned to XTRRom 5.0 and have not had a single problem with GPS on any of my jogging runs. I definitely think it is a CM thing. At least on my phone.
Using kaosfroyo v39 and I flashed that sprint phone radio on my eris and haven't had any gps issues. In fact, just the opposite. Mine would lock up before the v39 and the radio flash
I flashed that radio as well and today not one issue at all. Will test more tomorrow
I'm using the 2.42.02.10.29 sprint radio and still seeing it drop out.
Sent from my GSBv1.1 using XDA App
haganme said:
I'm using the 2.42.02.10.29 sprint radio and still seeing it drop out.
Sent from my GSBv1.1 using XDA App
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Today I even flashed back to the July 2010 version (2.42.01.04.27). the gps dropped out almost every 5 minutes while i was driving around. that's the worst i've seen. So i flashed back to the 2.42.02.10.29 sprint radio again. I haven't seen very good navigation performance on the v1.1 gingershedbread overall, actually. my position on the gps nav doesn't update very often, although it seemed like the voice instructions were still pretty well timed as usual.
After many weeks of GPS not locking, or taking 5 plus minutes to lock on the recent leaked AT&T ICS ROM's I have found the problem. Not everybody has a problem, but many of you do.
No matter what I did, GPS simply wouldn't work. Flashing back to stock, re-flashing several ICS ROM's with complete wipes of the phone including EMMC and SD card did nothing. The last AT&T leak, as well as the official did nothing to fix the problem. As soon as I flashed back to sauROM or any gingerbread ROM, GPS would start working perfect, with 6 second lock, but back to ICS and GPS would quit again. Last week I finally found and fixed the problem. I flashed the radio from the gingerbread bread ROM on several ICS ROM's including the new official, and it's worked perfect for the last week. The UCLF5 leak and the New official AT&T ROM. I'm running Flapjaxxx ROM with no issues. GPS locks in under 10 seconds, LTE here in Tampa, FL signal strength is the same as is LTE giving me 21MB down and 12MB up, on this UCLA1 radio. Just because it's an older radio, doesn't mean performance is effected.
Flash with Odin (I'm using v1.85) Don't unzip/extract and place it in the phone space, NOT PDA
Make sure phone is in download mode and you have the samsung USB drivers installed.
Nice work, The quirky inconsistent ics- GPS behavior is consistent with your discovery. I've had Stellar gps on gingerbread, but i have yet to test the gps with my newly flashed cm9 rom. If i experience the degraded performance being reported, i will give your procedure a go. Thanks for taking the time to shareware your findings.
Sent from my SAMSUNG-SGH-I717 using xda premium
Having had mostly good but sometimes quirky GPS since running Flapp ROM based off official ICS and having nothing better to do at 1am I gave this a try. I will say that on ICS I had either gotten a quick lock or it would take 15+ seconds to over 5 minutes for a lock and it varied with no pattern I could notice (reboots, charging status, time since last used, etc.). In another post I had noticed that my 'in use' satellites had decreased.
Initial results seem positive. Got more satellites 'in use' according to GPS test (compared to just prior to testing) and locks are back down to a couple seconds. Will be able to try it out again tomorrow after the phone has been on charge all night and I can drive with it. Maybe it's voodoo but If nothing else it doesn't seem to have worsened anything.
Urkk..
ATT
Sent from my SAMSUNG-SGH-I717 using xda premium
Rogers :
GB stock modem fixed my gps problems
4. I717RUXLA2_phone_secure_Q1_ROGERS_REV_00_CL870799. tar.md5 (26.09 MB) PHONE FILE
http://forum.xda-developers.com/showthread.php?t=1657262
I flashed now mine shows no BB in the about phone. Is that normal?
Sent from the TermiNOTEr!
borijess said:
I flashed now mine shows no BB in the about phone. Is that normal?
Sent from the TermiNOTEr!
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Yep, mine says same thing. I been using this modem for several days. No bugs on my end
Sent from my SAMSUNG-SGH-I717 using Tapatalk 2
Looks like it fixed my GPS issues.
Sent from my SAMSUNG-SGH-I717 using xda premium
Works!
StarLog said:
Looks like it fixed my GPS issues.
Sent from my SAMSUNG-SGH-I717 using xda premium
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Same here! I flashed the GB radio on top of Flapp's ICS official ROM and GPS locks like it did when I was on GB...awesome! This kind of reminds me of my Blackberry days, using different radios and even hybrid ones, lol.
I also claim this as fixing my problem. Thanks @ OP!!
Didn't work for me. I had to flash back to uclf6.
Sent from the TermiNOTEr!
Ok for two days using the Ops conf no change it still doesn't lock on under 16 minutes
Sent from my SAMSUNG-SGH-I717 using xda premium
I have tried this on my last note and it did not make any difference. In the mean time at&t replaced my note and this new replacement seems to be working better so far. However, flashing this modem it takes a while to connect to lte network after reboot but once it connects it works fine.
i will report back tommorrow, need more time to test 2.3.6 UCLA1 modem.
after i flashed ucla1 radio, it locks really quick! then again, i always get fast locks after a reboot.
let see if it still fast locks tomorrow without the reboot.
Thanks a lot. I was having GPS issues where the connection time was taking at least 10mins or more and at that rate I'd reach my destination before I'd even get close to a solid lock. With this radio I am now getting 2 to 6 second GPS connections.
Works
I have been using this for a week... Even before the op posted. Locking satellites as it should when I was using ginger bread. No issue so far with xalls, text, or LTE. However, I found that during navigation with google nav, co pilot and waze. The tracking was drifted, lag behind. Not significant but you miss a turn if it freeze at the right moment. I kinda pissed that they screwed up one of the important function of the phone. Iused this daily so kinda frustrated. I meed to send complain to ATT and Samsung. Just wondered if ATT and Samsung are awared of thi issue.
I dot think its the modem I have tried it. I am on the official CM9 and GPS locks within seconds inside my house using the uclf6 modem.
Sent from the TermiNOTEr! ;-)
Thanks for the idea, lf5 working great for me.
ParaNOTE Android
Just to verify the GB radio works great paired with Flapps ICS ROM (official), I tested it as I drove around the city today. I was getting instant locks and accuracy within 10'. I honestly get the GPS locks I did on GB! It really works on my device WITHOUT ANY ISSUES and as with all things, ymmv.
I was messing around in the Android Apps and Games forum and found this post. So then I wanted to share it with you guys.
http://forum.xda-developers.com/showthread.php?t=1239713
My question is... could this be used in any way to improve our development?
As if this "fix" could be built into our ROMs or radios or SOMETHING to connect to a GPS quicker?
Just a thought...
I think the agps pstch does the same thing. Also GPS status from the market can do the same thing.
Sent from my ADR6400L using Tapatalk 2
I think all these GPS fixes dont do anything personally....a long time ago someone suggested to get a satellite fix, then reinstall the ROM and it will lock almost instantly every time. And it has been working for over a year. I have done it to 3 different thunderbolts besides my own and worked. I never use these "fixes." Im no pro at this software stuff but trial and error is my expertise and when it works perfectly every time on multiple of the same device, id say thats the best way to do it.
ang1dust said:
I think all these GPS fixes dont do anything personally....a long time ago someone suggested to get a satellite fix, then reinstall the ROM and it will lock almost instantly every time. And it has been working for over a year. I have done it to 3 different thunderbolts besides my own and worked. I never use these "fixes." Im no pro at this software stuff but trial and error is my expertise and when it works perfectly every time on multiple of the same device, id say thats the best way to do it.
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I mostly agree. I just went through this process, having gone from a Sense-based ROM (BAMF SOAB 1.4) to an AOSP-based ROM (Thundershed 1.6). Despite the new ROM having the AGPS fix baked in, I still wasn't getting a GPS, so I made a nandroid, flashed back to an old nandroid I had of SOAB, opened up Google Maps, to get a satellite, then opened up GPS Status (from the Play Store, free) to find the strongest lock I could (9 out of 9 satellites), then immediately went to reboot into recovery and restored my Thundershed nandroid. I then opened up Google Maps then GPS Status again, found I was locked onto 10 of 10 satellites, and I was good to go.
ang1dust said:
I think all these GPS fixes dont do anything personally....a long time ago someone suggested to get a satellite fix, then reinstall the ROM and it will lock almost instantly every time. And it has been working for over a year. I have done it to 3 different thunderbolts besides my own and worked. I never use these "fixes." Im no pro at this software stuff but trial and error is my expertise and when it works perfectly every time on multiple of the same device, id say thats the best way to do it.
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I agree with him. GPS don't do much anymore. The 4g signal does more than the GPS. You could not run a GPS app without data connection. basically all they use gps for is to find exact location. And soon i think that they will probably discontinue gps in a phone!