Database Develop

[Q] why do we all have so different results for gps?

So there are people on here that get good (not fantastic) performance from there GPS with stock, while others like myself have terrible gps performance with stock. I can't lock on, only 2 satellites in view ext. ect, ect. I even tried all the lbstest changes people recommended and i had no change, while others say its fixed.
When I flashed JH7 from odin one click download I got really good results, locking on after a minute or less down to 10 M and with 9 statalites in view.
but I've read others didn't have the same result as me and nandroided back.
Are we sure we all have the same GPS hardware? why do all of our results vary so much with the same rom on the same hardware.

mattbeau said:
So there are people on here that get good (not fantastic) performance from there GPS with stock, while others like myself have terrible gps performance with stock. I can't lock on, only 2 satellites in view ext. ect, ect. I even tried all the lbstest changes people recommended and i had no change, while others say its fixed.
When I flashed JH7 from odin one click download I got really good results, locking on after a minute or less down to 10 M and with 9 statalites in view.
but I've read others didn't have the same result as me and nandroided back.
Are we sure we all have the same GPS hardware? why do all of our results vary so much with the same rom on the same hardware.
Click to expand...
Click to collapse
It could be that some people master clear, when others haven't. I use SRE and my performance is amazing with the GPS. DG does some tweaks still i believe, and my gps tracks amazingly.
Other than that, I have NO clue why. Maybe people have more trees in the area and get less lock? Only thing I can think of.

thanks for the reply, it turns out that after doing a master reset and reflashing jf6 my gps is running better. I dont know what changed but it is performing the same as jh7 was. I guess back to the drawing board

my gpa worked better stock, and with the overclock kernel and utb. I then used jf7 and sre and I'm thinking about going without sre, or maybe move ap only version.
I didn't try jf7 without sre though so I can't know what it will do. I actually have a feeling that my recent poor performance is nothing but a coincidence though. I'll give it a few days and a road test.
Sent from my SAMSUNG-SGH-I897 using XDA App

Mine works fine with JF6, utb, and lagfix ext4.
Wife's also works fine with JF6 and utb.
We used google navigation on hers yesterday and it worked just fine.

Part of the problem is not everyone is testing GPS the same way. The best test is using the NAV application - and not just on a simple route in the neighborhood. Combination highway and local driving - see if the NAV thinks you are on the street or keeps trying to reroute you. Does it tell you about turns or think you missed them?
Also Track your travels and view it on Google maps - really zoom in and see if you wander through buildings.
I think some of it may have to do with system blocking - more things running in the background may have to dow ith how often the GPS updates.

[Q] Any luck with designgears JH7_OTA.zip?

Before taking the plunge I am looking for success/problem comments from those who have failed with OTA and then tried the JH7_OTA.zip approach.
I have searched and I don't see many comments yet.

It flashed fine for me but now GPS is causing my phone to lock up. Happens if I turn off GPS and just now happened in google maps while driving. Had to pull the battery to reset.

Worked great for me. GPS is working like a champ too.
Thanks to all who worked so hard on the flash.

I updated with the JH7_OTA.zip and it went well, but my phone is worse than before... laggier, bottom buttons seem less responsive (could be due to the increased lag) and the GPS will not see any satellites and much less, lock. I'm sure it's not the file... just another defective unit. This is my fourth Captivate. First two simply lost the ability to connect to 3G and WIFI, the third had a great GPS but the search function would randomly self activate and the body creaked like an old rocking chair, and my current one.

bigdoug2005 said:
It flashed fine for me but now GPS is causing my phone to lock up. Happens if I turn off GPS and just now happened in google maps while driving. Had to pull the battery to reset.
Click to expand...
Click to collapse
This happened to me. You don't need to pull the battery. Just hold the up volume button and power button for about 10 seconds and the phone will shut off.

Edit Disregard my post.

It's working great for me. I usually stream radio during the day and it usually will drop out once or twice an hour. Today, it has been streaming just perfectly with no dropouts. Thanks to all of those that got this working!!!!

No problems here, either. I did remove my previously installed LagFix first, and I flashed over JH3. GPS seems to track me a little better than before, and it does seem that perhaps the radio is working a bit better and battery life is slightly better as well.
I have the same commute on the train each morning, and pretty much do the same routine each time, so that's a good way for me to compare things after a change. This morning I noticed that my streaming radio barely cut out at all in areas where the signal is low, much less than before, and when I got into work my remaining battery PCT was a little better than usual. I applied the RyanZ lag fix from the market this afternoon and overall am pretty happy so far!

My GPS is still jacked up.
Sent from my SAMSUNG-SGH-I897 using Tapatalk

Worked great for me. everything working including the 3 button, usb, and better gps/compass. Things other people were complaining about not working. I flashed odin and rooted with update.zip before i applied this rom.

luck? Sure... but...
I went with the Cognition ROM as JH7_OTA didn't do the trick for me.. All in all I like the Cog experience (install went smoothly, seems fast, no weird errors), but the GPS is definitely not fixed. Accuracy is better in that my phone can locate me on the neighborhood level, but it is still not locking and is locating me blocks away from where I'm actually at.

Worked great for me.

No problems flashing for me. That is the answer to your question, now to issues I had.
HSUPA was not working for me. So I did the revert HSUPA to get 3G back and it killed all data for me. So I did a nandroid back to my previous ROM and then I got FC so I had to Odin and then reinstall my nandroid. That is why I don't like his zip, it works fine but if you want to change ROM's you have to basically flash odin to make sure you have no issues. That is how it was for me, others might be different and then you have the nut swingers who are only for Cognition.
I will say this issue happened to me 3 times. I think the issue might stem from being unable to remove voodoo since it is packaged into his zip. Not positive why I had the issue but for the time being I am trying other alternatives.
Last edit: Just went back to his Cognition thread and see that he pulled the HSUPA zip, so it wasn't just me having issues. Unfortunately stuff like that lets me know that all in one package zips like that need to be worked on more.

flashman2002 said:
I will say this issue happened to me 3 times. I think the issue might stem from being unable to remove voodoo since it is packaged into his zip. Not positive why I had the issue but for the time being I am trying other alternatives.
Click to expand...
Click to collapse
you probably should have removed the voodoo lagfix to try to flash other roms since clockwork DOES NOT work with voodoo
alternatively you can install cognition, and install a different kernel if you dont want voodoo lagfix...

flashed it and it's great! except the gps is kind of on and off.

[Q] Some remaining probs with doc 7.6.2

I am trying to get a solution for these 3 problems I am facing with Doc´s 7.6.2.
Maybe it is not a big deal to make it a perfect ROM but these 3 topics are annoying:
I wrote the same message already in Doc´s threat but no answer at all. in 5 min 10 new messages so nobody really takes care for a new question
Hi Guys,
Some problems I do have with the 7.6.2 and for sure I am not alone with these errors.
1 From time to time high energy consumption but sometimes not - this is crazy. One thing I realized when alarm is switched on for all weekdays then it sucks almost 20% in 5h - just in standby mode. Whats wrong here?
2 GPS signal is bad. When you using this tracking tools eg. cardio trainer it looses half time the GPS signal. Was definitely not with older ROMs.
Is that the modem version?
Is this part of the kernel?
3 Bluetooth works but whenever activating and deactivating getting a stupid message about an opp bla bla.
What is wrong?
Who can help?
Thanks
boris03

quite alot galaxy s users have reported issues with the gps reception i used to think its just a driver issue but upon reading into it would seem its related to the antenna. The wifi also suffers from this problem for me it does anyway. you can try out gps booster lite from market it does help outdoors to get a faster fix as for battery issues well im not so sure you would prob better asking in that thread if your still not heard try sending a pm that should work. good luck

boris03 said:
I am trying to get a solution for these 3 problems I am facing with Doc´s 7.6.2.
Maybe it is not a big deal to make it a perfect ROM but these 3 topics are annoying:
I wrote the same message already in Doc´s threat but no answer at all. in 5 min 10 new messages so nobody really takes care for a new question
Hi Guys,
Some problems I do have with the 7.6.2 and for sure I am not alone with these errors.
1 From time to time high energy consumption but sometimes not - this is crazy. One thing I realized when alarm is switched on for all weekdays then it sucks almost 20% in 5h - just in standby mode. Whats wrong here?
2 GPS signal is bad. When you using this tracking tools eg. cardio trainer it looses half time the GPS signal. Was definitely not with older ROMs.
Is that the modem version?
Is this part of the kernel?
3 Bluetooth works but whenever activating and deactivating getting a stupid message about an opp bla bla.
What is wrong?
Who can help?
Thanks
boris03
Click to expand...
Click to collapse
1.) Turn off your lagfix, run stock RFS see if you still get the issue.
Do a fresh install dont add ANY apps other than stock, observe for 1-2 days of battery usage.
2.) GPS is a hit or miss, hardware is broken.
3.) Never had issues with BT, I use it on a day to day basis to pass around files at the office.

Are you using one of those OC kernels? Or any of the suggested kernels for the matter? I was using Super Optimized Kernel for a while and the battery drain was outstanding even on the non-OC versions. Switched to SpeedMod 300hz. Haven't monitored the battery though but it seems better with normal usage. Also, what lagfix are you using? For a time I was using the Ext-4 Overkill lagfix from the ULF and I noticed considerably less battery life.
As Earlz suggested, try disabling lagfixes and tweaks and monitor..then if it is better than before perhaps using a different lagfix would be a solution. Try switching up kernels (remembering to disable lagfixes prior). Try running different launchers too. I'm no expert on how these things work and affect battery life, but this is all based from personal experience.
My GPS never worked from the start no matter what firmware/ROM I'm on so it seems to really be a hardware issue as EarlZ mentioned. If the problem came about after flashing 7.6.2 then try reflashing to stock firmware with repartition and installing 7.6.2 again after clearing cache and factory reset. Somehow that (having a super clean install) usually fixes random problems I get with any ROM. I'm not certain if it will have any affect on GPS performance but it's worth a try.
Bluetooth is still working fine for me. Perhaps the aforementioned clean install advice I gave could remedy this.

Hi there, i rescently installed DJP5 v8.0.1 . And have some problems with it. When i'm making call i hear the other side perfect, but they dont hear me well. Is it some issue with the ROM or ? Have someone else experienced similar problems?

darkfire_bg said:
Hi there, i rescently installed DJP5 v8.0.1 . And have some problems with it. When i'm making call i hear the other side perfect, but they dont hear me well. Is it some issue with the ROM or ? Have someone else experienced similar problems?
Click to expand...
Click to collapse
There is investigation on that one...
For now, it seems to be a modem issue from the stock modem of ADJP5
Flash another modem seems to fix this issue

darkfire_bg said:
Hi there, i rescently installed DJP5 v8.0.1 . And have some problems with it. When i'm making call i hear the other side perfect, but they dont hear me well. Is it some issue with the ROM or ? Have someone else experienced similar problems?
Click to expand...
Click to collapse
Sigh....Thats covered in the main thread for this rom, try a different modem.
Sent from my GT-I9000 using XDA App

[Q] GPS Loses fix (and precision) when screen off

Hi people!
On my Galaxy S i9000 I have on Juwe 5.3 (JVR) with Semaphore 1.6.0.
I have the following problem: my GPS works (good accuracy and locking speed) only when the screen is on. As soon as the screen goes off, I lose the fix and precision, while using tracking apps like Runkeeper or My Tracks and diagnostic ones like GPS Status.
I've tried to force the CPU on 1000 MHz with Voltage Control but the problem remains so I'm guessing it's not a performance issue.
Any ideas?
Everything else works fine.
Thanks!

The same happens on my phone (albeit w/ CM7), but I don't mind, since that would eat the battery. I can see how that would render certain apps useless, though. I've used a few ROMs in my day, and never noticed GPS staying locked while the screen was off. I'm interested in how you'd achieve this as well.

Hi.
Yes in fact when I was on stock the gps worked as expected but I was on froyo.
Than I updated to a beta GB and then to Juwe.
I'd prefer not to put a froyo rom just to test if possible. I'll wait for someone to come with some idea
Thanks!

Some updates:
- It seems not to be kernel releated (tried with both semaphore and CF-Root, will try also TalonDEV)
- Not rom releated also (from Juwe JVR to Simplicity JVT, passing thru stock JVT).
Any ideas?
Is there someone whose GPS stays locked even if the screen is off?
Thanks.

Interested as well. Anyone?

Hmm, my gps would always lose lock if i turned off screen (froyo too).. thought that was normal behaviour

i thought that depends on the app. navigon has a setting which says to keep gps on or off when minimised.

oswade said:
i thought that depends on the app. navigon has a setting which says to keep gps on or off when minimised.
Click to expand...
Click to collapse
Probably this is right. Should be app-related.
I used to have a lot of GPS problems, but I solved them connecting GPS for the first time with WiFi on google maps, after that, GPs worked great without wifi being necessary anymore.

gtluis said:
Probably this is right. Should be app-related.
I used to have a lot of GPS problems, but I solved them connecting GPS for the first time with WiFi on google maps, after that, GPs worked great without wifi being necessary anymore.
Click to expand...
Click to collapse
I will try that.
It seems that also other phones are affected by this problem/feature, after the update to Gingerbread.

Little update: the navigation app does not let the screen to turn off to not to lose gps fix.
Sent from my GT-I9000 using XDA App

WiFi Turning Off During Deep Sleep

Hi all,
Can anyone help with this issue. I can see no long discussion about it which seems to suggest it's either rare (not great) or something I am doing (probably).
My WiFi status appears to be fine throughout the day, when in regular use. I have no speed issues (connection speeds as expected for my home internet), no random drops or on/off switches and no seeming battery drain. I have all additional services on (Bluetooth, location and NFC as I want the phone to be fully functional at all times and not just 'look nice') and despite this I get what I would expect in battery life (c. 6 hrs screen on time). YET, amongst a few other problems (what is the slider customisation about - awful!) the one I can't fathom is this:
My WiFi switches off over night presumably when the phone goes into deep sleep. I have gone into the advanced settings and set it to 'Always on' but this doesn't seem to keep it 'always on'. I wake up in the morning and it is off. I was running some Tasker profiles (which seem to make little difference given the slider issue noted above) but actually my WiFi isn't one off the Tasks effected by a night time profile.
Any help would be appreciated.
AS a secondary question, I switched my VPN over to Canada as suggested and was provided with the Nougat update. I haven't yet tried it but was wondering if there are any bugs that I should consider before switching over given I am 4 days into owning this phone and still haven't ironed out certain things in Marshmallow.

Just as a follow up question, would the 'turn Doze off' option help with this? Surely I shouldn't have to do this though?

Am I the only one having this issue? That would suck. Even so, would anybody more adept at these things than me like to have a guess at solving the issue.

IV had agresive dose mode on and haven't had any wifi problems but I am on 4.0.1 so might want to just update it as it's really stable and I haven't had any issue except having to reconfigure the APN settings. PS if you do update reset you phone after as some people have said it helps with the new file system.

Greedyfly said:
Hi all,
Can anyone help with this issue. I can see no long discussion about it which seems to suggest it's either rare (not great) or something I am doing (probably).
My WiFi status appears to be fine throughout the day, when in regular use. I have no speed issues (connection speeds as expected for my home internet), no random drops or on/off switches and no seeming battery drain. I have all additional services on (Bluetooth, location and NFC as I want the phone to be fully functional at all times and not just 'look nice') and despite this I get what I would expect in battery life (c. 6 hrs screen on time). YET, amongst a few other problems (what is the slider customisation about - awful!) the one I can't fathom is this:
My WiFi switches off over night presumably when the phone goes into deep sleep. I have gone into the advanced settings and set it to 'Always on' but this doesn't seem to keep it 'always on'. I wake up in the morning and it is off. I was running some Tasker profiles (which seem to make little difference given the slider issue noted above) but actually my WiFi isn't one off the Tasks effected by a night time profile.
Any help would be appreciated.
AS a secondary question, I switched my VPN over to Canada as suggested and was provided with the Nougat update. I haven't yet tried it but was wondering if there are any bugs that I should consider before switching over given I am 4 days into owning this phone and still haven't ironed out certain things in Marshmallow.
Click to expand...
Click to collapse
This happens when people is crying about updates every day. Then, when the updates are available, they update it in the first minute and again, they start crying, that they encounter bugs and stuff that doesnt work as it should, even if they dont have any idea how to revert their OS to the previous working one. People should learn how to be patient and enjoy their phones without being so greedy about updates.
Just sit tight, enjoy your phone, READ forums about latest updates and the problems encountered on that specific update ( since its still a beta update, and an early one , called Beta 1 ). If they seem to be fine with those issue, ONLY then should update to the latest one.

smilirulz said:
This happens when people is crying about updates every day. Then, when the updates are available, they update it in the first minute and again, they start crying, that they encounter bugs and stuff that doesnt work as it should, even if they dont have any idea how to revert their OS to the previous working one. People should learn how to be patient and enjoy their phones without being so greedy about updates.
Just sit tight, enjoy your phone, READ forums about latest updates and the problems encountered on that specific update ( since its still a beta update, and an early one , called Beta 1 ). If they seem to be fine with those issue, ONLY then should update to the latest one.
Click to expand...
Click to collapse
I haven't 'cried' about anything, pal, so keep your unhelpful comments to yourself or help. Don't middle ground-it by offering your own personal, and incorrect, opinions.
I hadn't upgraded anything, I was running stock OS and stock marshmallow, so I had literally done nothing to my device other than switch it on and download the same apps I've been using for years.
I've also rooted several devices in the past with no issues and chime in when I can to help, but I'm not a dev and there are far more technologically gifted individuals operating in this forum which is why I sought help here... Not that I got much from you. But I'm more than capable of reading release notes and making sure I can revert backwards before installing anything.
Now to anyone still here, and with the same issue, it appears that carrying out the update to Nougat, re-adding my WiFi networks and clearing system cache solved the problem or at least for the first night. Should this change I'll update here.

ISO_Metric said:
IV had agresive dose mode on and haven't had any wifi problems but I am on 4.0.1 so might want to just update it as it's really stable and I haven't had any issue except having to reconfigure the APN settings. PS if you do update reset you phone after as some people have said it helps with the new file system.
Click to expand...
Click to collapse
Hi Iso, thank you for your response, I hadn't seen this until now.
The upgrade to 4.0.1 does appear to have done the trick somewhat as it stayed on overnight without issue. I did notice it wasn't on a little later this morning but I am giving the device the benefit of the doubt on that one as I have been messing about with certain things and it's possible I or a profile in tasker switched it off.
As an aside do you recommend any other potential fixes, just to be on the safe side.

Did you factory reset after upgrading? Other than that it's probably a app you have I hear Facebook is really bad at battery

ISO_Metric said:
Did you factory reset after upgrading? Other than that it's probably a app you have I hear Facebook is really bad at battery
Click to expand...
Click to collapse
I didn't factory reset, only Cache wipe after the upgrade, and as it seems ok so far, I am reluctant to factory reset the device as it took so long to set up in the first instance.
Should it start becoming an issue again I'll try it but for now...
Also I know there are backup options though I haven't found one that works flawlessly which gives me the confidence to explore this avenue just yet.

You might have to because in nuogat they optimized the file system and in order to get the new one you have to factory reset not 100% sure it affects battery life but it really affects performance, PS also try turning off gestures, ambient display and pocket mode

ISO_Metric said:
You might have to because in nuogat they optimized the file system and in order to get the new one you have to factory reset not 100% sure it affects battery life but it really affects performance, PS also try turning off gestures, ambient display and pocket mode
Click to expand...
Click to collapse
Are you sure ISO? The UI has been updated and the already snappy OS feels snappier. Is there a way to tell for sure if it's required?
If so, any good recommendations for backup capability. I have used Helium to mixed results and I can't use Titanium as I have no root (and don't wish to).

Maybe not but it all elts fails