Database Users

JI6 GPS still has major issues

Got excited after updating to JI6 this afternoon and the GPS locked on with 10 seconds, however tonight I went on a drive and the GPS wouldn't lock on after minutes. Finally gave up and rebooted which resolved the problem.
I'm also seeing some issues with the GPS being off by 100's of feet which is causing maps to reroute. Seems like mainly when stopped at a signal light.
Hopefully rebooting solved the first issue, but I not happy that there is still problems with GPS after waiting 2 months for a fix
Also the LAG seems worse. LAG needs to be the next top priority

That's a drag man, sorry to hear that. Maybe consider installing a custom ROM? I'm running Bionix 1.4, no lagfix because I'm getting zero lag. Rooting and flashing was very quick and my phone is now very responsive.
GPS is still hit or miss, but it's mostly hit and overall is working much better.
To be honest flashing this ROM has improved my phone ten fold.
Maybe give it a try. Just a thought, and sorry again to hear about your issues.

fix: flash (clockwork) "Vibrant-JI2-GPS.zip"
ji6 gps BLOWSSSSS

enter *#3214789650# and switch to MSmode, This solved the accuracy problem for me on JI6.
I don't know why samsung insists on seting Standalone mode for the GPS, Swiching to MSmode was the first thing we did to fix the GPS months ago.

dalepa said:
Also the LAG seems worse. LAG needs to be the next top priority
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Very strange. My phone is significantly faster, even better than before with OCLF. No stuttering at all.

Bionix 1.7 is the answer to your woes

Did you **** with any of the GPS settings prior to updating?
My GPS is working great, tracking, navigation and all. Lag? What lag?
Also, why did you think this topic deserved another thread? We already have one on this topic.. thanks.

Is anyone seeing their GPS just start wondering off? I'll be setting perfectly still and the GPS will start jumping in one direction by 100+ yards each time and it'll keep going, like yesterday I ended up over 200 miles away from where I actually was. Oh and instead of being on the street it has me in parking lots and fields. Not seeing the fix on my end.

It's working like a charm for me after JI6 !!!

GPS is fine for me and even better after enabling agps
For some reason agps is disabled by default.

Can you guys tell me your exact settings on the LbsTestMode? Not just the usual ms-mode/ supl.google.com/ 7276.. I need to know all the settings you have cos I messed with mine and want it back to stock

No problem here
I must be lucky, I am using Frankin Twiz final and a simple fix and i have 5-7 sats locks and 10-15 m accuracy. From all the reading...... depending on how you customized your phone, it seems to me that you have to customize the gps fix as well, as I see no absolute fix by anyone that works for all.

GPS
I got the update. The GPS worked for awhile but now it doesn't lock in. What's the best way to solve the problem?

Yes I have the same issue. I also noticed that when at a stoplight the gps will drift which causes maps to recaculate routes.
reddragon72 said:
Is anyone seeing their GPS just start wondering off? I'll be setting perfectly still and the GPS will start jumping in one direction by 100+ yards each time and it'll keep going, like yesterday I ended up over 200 miles away from where I actually was. Oh and instead of being on the street it has me in parking lots and fields. Not seeing the fix on my end.
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Click to collapse

No I did not **** with any settings, ji6 straight with no mods anywhere!
Where's the JI6 GPS thread that is reporting major GPS issues?
heygrl said:
Did you **** with any of the GPS settings prior to updating?
My GPS is working great, tracking, navigation and all. Lag? What lag?
Also, why did you think this topic deserved another thread? We already have one on this topic.. thanks.
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Click to collapse

Plato56 said:
enter *#3214789650# and switch to MSmode, This solved the accuracy problem for me on JI6.
I don't know why samsung insists on seting Standalone mode for the GPS, Swiching to MSmode was the first thing we did to fix the GPS months ago.
Click to expand...
Click to collapse
MS MODE helps only in decreasing the TTF/TTFF. it won't help with the accuracy issue both the OP and myself are having.
Sent from my SGH-T959 using XDA App

I don't see the USB icon after pluggning the cable. Anyone seeing this issue?
Preface: I was rooted with lagfix using OCLF. Prior to the OTA, I unrooted & uninstalled lagfix. My phone got locked up in Vibrant/Samsung screen during the OTA installtion like many others.
I used Odin to return the phone to stock, then download & flashed the JI6 file using Odin. GPS, compass, Task Manager, HD Camcorder, Youtube HD, Media Hub, etc are working fine ... however, no USB icon.

Has anyone else still not received this update?

People put your phone into fight mode and see how accurate GPS is after

Mine works perfectly, I am digging this update specially the new task manager. I can't wait for froyo.
Sent from my SGH-T959 using XDA App

[Q] Is anyone having problems with Google Sky after the JI6 Update?

After updating to the latest Samsung firmware, JI6, I noticed several things. On the positive side, the GPS and the Compass both perform better than the original JFD firmware.
On the negative side, I noticed that Google Sky is showing up approximately 180 degrees out of phase. (Best to think of this orientation problem as the need to look through the back case of your phone rather than look at the screen). I noticed this problem because, last *night*, Google Sky indicated that the sun was above my head, when it should have been on the other side of the planet.
I elected to apply the JI2 GPS patch to see if that might help with this problem (because I didn't have this problem with JFD). As expected my GPS and Compass continued to perform better than with JFD. And, the good news is that this fixed the Google Sky orientation problem!
Just curious to know if anyone else is having this problem with JI6.

ScratchSF said:
After updating to the latest Samsung firmware, JI6, I noticed several things. On the positive side, the GPS and the Compass both perform better than the original JFD firmware.
On the negative side, I noticed that Google Sky is showing up approximately 180 degrees out of phase. (Best to think of this orientation problem as the need to look through the back case of your phone rather than look at the screen). I noticed this problem because, last *night*, Google Sky indicated that the sun was above my head, when it should have been on the other side of the planet.
I elected to apply the JI2 GPS patch to see if that might help with this problem (because I didn't have this problem with JFD). As expected my GPS and Compass continued to perform better than with JFD. And, the good news is that this fixed the Google Sky orientation problem!
Just curious to know if anyone else is having this problem with JI6.
Click to expand...
Click to collapse
Did you have any problems applying the ji2 fix over the official ji6 ota update?

@jstein222, I didn't have any problems applying the JI2 patch on top of JI6. That said, I backed up everything first just in case it didn't take.

ScratchSF said:
@jstein222, I didn't have any problems applying the JI2 patch on top of JI6. That said, I backed up everything first just in case it didn't take.
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Click to collapse
cool, i'm going to give that a try my gps actually worked with the ji2 fix and gets absolutely no locks with the new ji6.

I noticed that even with the JI2 patch applied to the JI6 build that I sometimes also have trouble getting locks. I think there is some RFI going on between the different radio components in the Vibrant.
I've found that if I turn off WiFi before using the GPS, I get locks much, much faster.

I checked the Google Night Sky app since you asked and I'm having the same issue. It's not a deal breaker for me, but I'm going to play with the stock JI6 for a few days more before I install the JI2 files. Maybe Google will release an update in that time.....maybe.

Calibrate the compass using the figure 8 motion. I had the same issue after the update until I calibrated the compass. Now works fine.
Sent from my SGH-T959 using XDA App

avogl said:
Calibrate the compass using the figure 8 motion. I had the same issue after the update until I calibrated the compass. Now works fine.
Sent from my SGH-T959 using XDA App
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+1
Had to do this for regular Maps as well, not just for Sky Maps.

@inverseflux & avogl, Thanks for the calibration idea. I tried to calibrate using a Compass tool from the Marketplace. It seems as if my compass is actually working fine in both JI6 and JI2... That's to say that it points N/S/E/W regardless of how I'm tilting the phone. That is a far improvement over JFD. And when it points N in JI6 it also points N with the JI2 GPS mod.
In JI6, it seems as if things are 180 degrees out of phase vis-a-vis the front-to-back orientation of the phone. In JI2, this problem didn't occur.
It is possible that I haven't properly calibrated, so is there a specific tool you can recommend?

Google Sky Map Problem

Google Sky Maps. I just installed this again and am getting weird behavior. As I rotate up above the horizon everything shifts towards the west, and I can't see the sky. I used the new time shift feature to watch a sunrise..... Sun went below the horizon at sunrise?
Using Bonsia ROM, not sure if this is a 2.2 Froyo problem or what. Searches bring up mag calibration, but this seems more profoundly wrong.

It's not a Froyo problem, the compass in the Epic seems all wonky and I've never gotten it to work quite right.

Orbiting234 said:
It's not a Froyo problem, the compass in the Epic seems all wonky and I've never gotten it to work quite right.
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I never had that problem in Eclair; sky map would function almost perfectly. I upgraded to stock Froyo and I have the same problem (and yes, I did the terminal emulator fix).

You must be in the great minority. I have yet to see an Epic that consistently gets its compass headings reliably correct nor have I ever seen Google Sky Map move nearly as smooth as any other android phone (very jerky).

My google sky also worked perfectly under stock eclair, but once I started futzing around with custom roms this and froyo that, **** got weird..
I DID however find a fix.. you need to calibrate your compass.. There's a couple ways, one long and complicated involving terminal emulators (which btw: didnt fix the problem for me) and the other, seemingly silly, "hold your phone and wave it around in a figure eight motion" which did the trick..
so.. go outside, preferably where lots of people can see you, hold your with your arms fully extended and wave it around in a figure eight..
The sillier you look, and the more people that can see you, the more likely it is to work

The figure 8 trick solved mine as well. Insanity is the answer.
Sent from my shoe, I mean....Epic shoe... I mean Samsung Epic! http://mobilehighway.blogspot.com/

Figure 8 trick didn't work for me, which is weird cuz I have a compass app on my phone and it almost perfectly points north, same goes for google maps. Any suggestions as to why sky maps isn't functioning correctly?

I wish google would fix the night mode on this app. It doesn't do a lot of good to have everything on the screen a dim red, but then have a blazing white menu pop up whenever you want to find something specific in the sky. How, exactly, is that supposed to help you keep your night vision while star gazing?

Just saw a guy with a stock Epic and his G Sky works fine. Must be a froyo thing. Don't think it has anything to do with the compass calibration...mine seems to be fine in compass apps. This problem is more related to the accelerometers... the app inverts axis or something when you rotate the phone above the horizon.
Does anyone have it working right on a 2.2 ROM?

Did some more testing using the app GPS status. It gives pitch and roll readout. In my case as I increase pitch or roll above 90deg, the readings stop at about 86 degrees and then don't change.
For some reason we're capped to less than 90 deg. Any ideas? Can someone with 2.1 try GPS status and see what kind of pitch indication you get if you go above vertical?

.... and Paper Airplane game doesn't work. Great free game that uses pitch and roll of the phone to control the plane flying through obstacle course.
With 2.2..... can't pitch up, and the plane won't climb! So I really don't think it's a G maps problem. Something is wrong with our 2.2 inclination settings.
Edit: Can a MOD change the name of this thread to include "Froyo inclination error"?
Edit: Huge thread in another area of xda. http://forum.xda-developers.com/showthread.php?t=803242 regarding sensor calibration. Kind of deep for me.
Does this work in stock 2.2? Anyone?

Alright... I'm back on a stock DI18, full data wipe. Only thing installed is Sky maps and Sensor Debug.
Sensor Debug values are now (on a flat surface):
Pitch -179/179 (pitching up, it goes up to -150 and stops. or down to 150)
Roll 1 (will go from +/- 30)
Z Force 9.69
The same values I had with a clean install of Bonsai 1.4.
With my original install on Bonsai 1.3 (I had hit the calibrate option from Display settings, and run the su command for system/bin/sensorcalibutil_yamaha) and the z axis was -9.69, pitch values where +/- 86.
If anyone has a working g sky maps, on any build... please get Sensor Debug and post your sensor values (laying flat, and how they change as you pitch/roll the phone).
Thanks.

Hey come on... where's the community support here!
This isn't just G sky prob. Using the app sensor debug, my pitch and roll values are all over the place. When I pitch past vertical, the roll axis starts to change? Somehow the axis values are getting mixed up....
Tried the same test on a Hero and another Galaxy S. There pitch smoothly goes 0 to -90 when vertical to -180 when upside down....with no change to roll axis.
Sent from my SPH-D700 using XDA App

Update: Just odin'd back from DK28 to DI18, and I'm still having the same sky map problem,even though before I never had it.

Finally! Glad you are having problems too. Hope we can get this figured out ASAP.... driving me batty.
I'm going to start a new thread... this source of the Google Sky Maps problem is larger. We're either dealing with a calibration error in the accelerometers or dare I saw hardware. Please join in the new thread.
For now, download Sensor Debug from the market. Also, get the values from /data/system/ms3c_yamaha.cfg.
Let's nail this!

How To: Froyo Compass fix

Credit to: abrognlie for pointing this out here: http://forum.xda-developers.com/showpost.php?p=11552644&postcount=163
Figured this would be easier to find in searchs.
Problem: Your compass is backwards and overly erractic and inaccurate.
Solution: Upside down horizontal calibration
How: Plant the phone on a flat surface upside down. A low ceiling, top of a door frame etc. Make sure it's flat and facing upside down. Go to: Settings, Display, Horizontal calibration and calibrate it upside down.
Bingo bango, your broken compass should be fixed. This also cures slow auto rotation

Just tried that. Still as erratic and jumpy as ever.

DiGi760 said:
Just tried that. Still as erratic and jumpy as ever.
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Click to collapse
Hardware problem?

The first time I used Google Maps with EB13 it told me that the compass needed to be calibrated and to move the phone several times in a figure 8 manner. I did it, and the compass has been fine. I'd never seen that before. I hadn't used the compass at all before this, so I don't know if it "fixed" a problem or if I just didn't have a problem, but I thought I'd throw it out there for people who are having problems.

edonnelly said:
The first time I used Google Maps with EB13 it told me that the compass needed to be calibrated and to move the phone several times in a figure 8 manner. I did it, and the compass has been fine. I'd never seen that before. I hadn't used the compass at all before this, so I don't know if it "fixed" a problem or if I just didn't have a problem, but I thought I'd throw it out there for people who are having problems.
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Same for me but it was still broken. X-Plane was unplayable, auto rotation was slow and sometimes unresponsive because the compass was backwards and jumping direction erratically. (download a compass app and check yours) North was south, etc.
The upside down trick 100% cured the issue. Not the figure 8 or the right side up calibration.
*shrug*

Wow! Best find ever! The upsides down calibration worked for my slow gsensor lanscape bug! All this time, rooted was needed for the
"system/bin/sensorcalibutil_yamaha" code to work! Very nice!

I wish I could claim credit for this (the member who deserves all the credit is styles420), and I wish it worked for everyone, but someone found this back when DK28 first leaked. It seems to help with a group of us with sensor data that gets mapped backwards during the flash. It shows up in the compass or google sky maps, but it seems to be a problem with the g-sensors that affects how the compass works.
Sent from my SPH-D700 using XDA App

DiGi760 said:
Just tried that. Still as erratic and jumpy as ever.
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Click to collapse
try downloading GPS Status from the market. Open it and do the calibration tools. Should fix this. Also may improve your GPS (if it isn't doing well)

Possible, but it was the same on my previous epic. I haven't put too much effort into it since I don't really need a compass very often, but it would be nice to have it work for once.
djbacon06 said:
try downloading GPS Status from the market. Open it and do the calibration tools. Should fix this. Also may improve your GPS (if it isn't doing well)
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I already have GPS Status. I did that calibration from that again, and it is still messed up. It jumps a little less, but I can turn the phone 90 degrees and the compass rotates 180. Then I turn the compass 90 degrees the same direction, and the compass jumps backwards 90 degrees. I'm having a really hard time figuring out a reason for the pattern. I might have to sit down and draw some compass diagrams.

Worked for me. Fixed slow auto rotate as well
Sent from my SPH-D700 using XDA App

it fixes mine! thanks you for finding a fix!

Fixes mine. Thanks for posting this!
Sent from my SPH-D700 using Tapatalk

SON OF A- I was just about out the door to get a replacement. I tried everything a month ago and gave up.
This fixed it.
Sky maps works perfect again.
Thank you and those who figured this out.

Home run battle 3d just became a hell of alot easier now. Thank you
Sent from my SPH-D700 using Tapatalk

tried all solutions here. no joy

Another issue, maybe?
I wonder if there might be an underlying issue here...
Was doing some research on why my battery life is garbage after EB13.
I hit on this thread because it looks like the compass sensor is consuming a ridiculous amount of CPU... I mean, foregrounded using 7% CPU when nothing else is going on.. like, no compass app or maps being used.
With my Epic pretty much quiescent, top consistently reports it (/system/bin/sensorserver_yamaha) as the highest user. Under DI18, it never even cracked the top ten.
Samsung Epic (EB13 Official) + Clockwork

wow thanks for the tip! i almost returned my epic because of this.

Amazing... how you found this out is beyond me, but it works!

'Compass' sensor Issue

I've just downloaded the Compass app from the market, but it doesn't seem to working correctly. I've tired both 'sensor types' but the direction it shows flickers and is incorrect.
Have any of you encountered the same issue?

you should try another app. I think gps status will work fine.
Sent from my Nexus One using XDA App

sogo87 said:
you should try another app. I think gps status will work fine.
Sent from my Nexus One using XDA App
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I've just tried that GPS Status app and it does work better then compass, but it seems to be about 40 degrees out when the phone is moves and even seems to wobble abit when it's stationary. I've made sure there's no interference before testing it out

Have you calibrated it?

Intratech said:
Have you calibrated it?
Click to expand...
Click to collapse
Yep, I've done the figure '8' waving

I have this problem too. Definitely a sensor issue -- the apps work perfectly on other phones (and indeed I *think* the compass used to work).
This is really damn annoying -- part of the reason I got the phone was so I can make a gyroscope-assisted compass app.
Hmph.

Just installed it from the market and it worked without any settings adjustment on the SGS II.

Timmmmmm said:
I have this problem too. Definitely a sensor issue -- the apps work perfectly on other phones (and indeed I *think* the compass used to work).
This is really damn annoying -- part of the reason I got the phone was so I can make a gyroscope-assisted compass app.
Hmph.
Click to expand...
Click to collapse
I'm on the phone to O2 getting an exchange.
I'm hoping it's an uncommon problem

Let me know how that goes, I may have to do the same. My compass has since settled down but it is consistently off by about 25-30 degrees...

Maybe this is your problem too
Read this, maybe you have the same problem...
http://forum.xda-developers.com/showthread.php?t=1047894&highlight=compass