Develop Bugs

Satellite check on Sprint Nav

Could someone please check Sprint Nav diagnostics to see how many satellites it finds. Both my phones only show one since EB13 and it loses GPS signal constantly. Worked fine on DK28. Google Nav works fine. GPSstatus shows 9 locked satellites. If you get more than 1 satellite what ROM and upgrade method did you use?
Thanks.
Sent from my SPH-D700 using XDA App

I have always only showed 1 in sprint nav I dont know if thats a true stat. I always got one on my Moment too but the sprint nav has always worked fine on both phones
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rgregg504 said:
I have always only showed 1 in sprint nav I dont know if thats a true stat. I always got one on my Moment too but the sprint nav has always worked fine on both phones
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Finally...thanks I thought I was the only one on this board using it! After EB13 install I lose GPS signal in town easily. Would maybe use lock once on a 50 mile trip with DK28.

Mine said.one satellite as well. It also said error was 3m
Sent From My Evo Killer!

musclehead84 said:
Mine said.one satellite as well. It also said error was 3m
Sent From My Evo Killer!
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Thanks MH. So the satellite count is not the issue...it doesn't like EB13 or Bonsai. I lose GPS fix easily now but did not on DK28.

Boost your 3G speed/signal significantly with foil.(pix included)

https://picasaweb.google.com/lh/photo/jzgrrJHrg6I2HhLtuLldh8Vu4B2B_5EkNzojvlGzvRw?feat=directlink
Mine increased its speed and signal 1.5~2 times than without the foil.

By doing that your connecting the wifi, gps and radio antennas together with the tin foil. Bound to cause some problems in the long run.

Runs good. Guess you are wrong.

Looks like the wifi and 3g antennas are bridged but the gps has been gone around (the one at the top).
Sent from my Incredible 2 using Tapatalk

hmm.. wanting to try this but also not. even if not now, it does seem very possible that connecting the wifi and the 3G antenna should/will cause a problem.

Normally both radios wouldn't be running at the same time. But what would happen when running wifi tether?

Stole my thread bro. But that's an interesting way you did it.
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bik2101 said:
hmm.. wanting to try this but also not. even if not now, it does seem very possible that connecting the wifi and the 3G antenna should/will cause a problem.
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I would avoid it. The radio engineers did it their way for a reason.
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Another Chinese mod... Not the smartest move in the long run especially with health and safety standards. The phones are designed to take in only so much information and data at a time. Doing this is like overclocking your processor and in time comes with a price. Use at own discretion.
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Which one is the phone antenna ?
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church101 said:
Which one is the phone antenna ?
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the one with the longer gold strip

realsol said:
Normally both radios wouldn't be running at the same time. But what would happen when running wifi tether?
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Also curious, to the OP, have you tried running wifi tether with the foil?
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bik2101 said:
the one with the longer gold strip
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Woo hoo think ill come up with something with foil and super glue
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bik2101 said:
the one with the longer gold strip
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I believe it's the top one. I tested it multiple times.
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Snappyts said:
Also curious, to the OP, have you tried running wifi tether with the foil?
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I'll test it and report back
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Snappyts said:
Also curious, to the OP, have you tried running wifi tether with the foil?
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I'll test it and report back
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deaffob said:
I believe it's the top one. I tested it multiple times.
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Sure about that? Because when I tried the foil trick on just the bottom one I lost signal which wouldn't happen If it was the ones on top.
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deaffob said:
I believe it's the top one. I tested it multiple times.
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How did you test it?
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The antenna next to the camera is GPS. GPS uses a loop. If you'll notice, the gold strip covers both contacts to form a complete loop.
The mobile antenna is on the bottom with the long strip.
Bridging all of the antennas is bound to cause some problems. If you have both radios on, but leave wifi disconnected, it will stay mostly off as it periodically polls for access points.
The mobile radio works similarly. While not on a call and not using data, it isn't maintaining a constant connection. It periodically polls for updates and connectivity.
In the end, not all of the radios will be firing at once.
With minor testing you might not notice any problems. Keep in mind the problem that plagued the iPhone was exposed antennas for different radios being bridged causing dropped calls.
I'd be interested in seeing some real world testing and not quick benchmarks. Try some google maps navigation and see how reliable it is. Make a phone call while connected to wifi. Try some wifi tethering. Wifi tether while browsing google maps on your device to activate all 3 of the radios affected. I'm genuinely curious what the results would be.

Yeah this isnt a good idea. For whatever reason it might run fine now, but there is something called SWR (standing wave ratio) which is reflected power back to the transmitter. If you have a high SWR due to unmatched load (antenna) then you will eventually degrade the RF front end of the transmitting radios in addition to inefficient radiation of the signal.
As it was mentioned before, great received signal and data download, but poor upload...this to me is a direct indication that the transmit side is mis-matched and most of the power is being reflected back to the transmitter. The great received signal is really irrelevant because cell base stations transmit high power...around 20 watts while our handsets are on the order of 0.3 watts or less so overall receive performance is going to be good regardless of a properly matched antenna.
Bottom line, I wouldn't recommend this.

GPS Accuracy

I made the switch from the Evo 3D to the Epic touch and I noticed that the GPS doesn't work as well as it did the Evo.
I was wondering if there was anything that can be done to make the signal a little better.
Sent from my SPH-D710 using XDA App

coming from the epic this thing works amazingly well
but i get a signal within 5 seconds and a 10 meter range

the gps on this thing works even better than on the photon in my experience
.: sent from my Samsung Galaxy S II Epic 4G Touch :.

I dunno...I fired up Google Earth on my lunch break sitting in my truck at work. I tapped "my location" and it flew in and was only off by 1 parking spot. I'd say that's pretty accurate.
So far as the radio strength I'd have to agree...usually it works fine for me, but some times I can't get a signal with it on my center console but if I put it in the door-handle pocket it works fine. I think that might be software tweakable...

You can try gps aid from the market. I used it on my epic and it helped but this phone works a lot better than my epic.
Sent From My Evo Killer!!!

I had to return mine for gps problems, the new one works great!
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Mine takes a while to lock and best i can hope for is 15m

Using GPS Status mine often shows an accuracy of 6 feet. I didn't even know cell phones were supposed to be capable of that resolution. I'm very impressed here.
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mine takes forever to get a lock, if I even get one. hmm, maybe I should go return it for GPS issues.

If your phone hasn't been rebooted in a while gps wont work very well. Reboot phone and it will lock fast.
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chrisnosleep said:
Using GPS Status mine often shows an accuracy of 6 feet. I didn't even know cell phones were supposed to be capable of that resolution. I'm very impressed here.
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All my other phones put me withing a few feet of my location, nor more than a few yards off in most situations. This has constantly had me at least a half of a mile off. I has me in an adjacent neighborhood at home and a half mile out in the river at work. i have tried all the settings. I am leaving work early today and going to Sprint for a possible exchange to another Touch. I already anticipate the run around but if they cant get me at least in the sprint parking lot, I am demanding a new phone. Its to the point where I cant use my GPS because it is totally inaccurate.

kasper19 said:
mine takes forever to get a lock, if I even get one. hmm, maybe I should go return it for GPS issues.
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Check this out.
http://forum.xda-developers.com/showthread.php?p=18319079
http://www.youtube.com/watch?v=hpkiJeUQpvQ
You should get a different copy.
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my GPS is fantastic
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lattisimo said:
Check this out.
http://forum.xda-developers.com/showthread.php?p=18319079
You should get a different copy.
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yea, saw the video. I have the same exact problem that is shown in the video. Now the question is, do I need to put my phone back to stock before I take it in?

kasper19 said:
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yea, saw the video. I have the same exact problem that is shown in the video. Now the question is, do I need to put my phone back to stock before I take it in?
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Yep, odin back to stock and you should be good to go.
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How long does it take you guys to get a GPS lock... Sometimes it take 5 minutes...

For me, I have never seen longer then 30 seconds. Usually less then 10 seconds.
I was goofing around with QPST the other day and noticed that there are Unpopulayed GPSone settings. Does this phone support GPSone? I populated the entries with data from my old phone. I don't think it made a difference, I just did it in the name of experimentation. What's the worse that could happen, I just have to reload my saved NV settings.

GPS used to be awesome...doesn't ever lock at all anymore. Reboot doesn't matter, GLSCLRX didn't help, re-stocked it, everything. no help.

1st floor of a 3 story condo building, in the bathroom with it raining outside. Doesn't matter what I do this thing gets within 10 yards of my location within a few seconds tops.
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daneurysm said:
GPS used to be awesome...doesn't ever lock at all anymore. Reboot doesn't matter, GLSCLRX didn't help, re-stocked it, everything. no help.
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Try the rom in my signature with GPS tweaks to see if it helps.
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stock FD24 GPS, fyi

just incase anyone else experiences this...
after installing FD24 (stock for me) i let my phone sit for 20 mins with GPS on and searching using GPS Status and it didnt even find one sattelite. So i left GPS on and rebooted. after reboot i got a lock within 5 seconds

Yeah not going to ICS until GPS is fully polished. Put ICS on two previous E4GT's and it borked out after a week. On EL29 and locks every time. So until this issue is resolved, no ICS for me
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locoboi187 said:
Yeah not going to ICS until GPS is fully polished. Put ICS on two previous E4GT's and it borked out after a week. On EL29 and locks every time. So until this issue is resolved, no ICS for me
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The GPS is as polished as she's going to get with these ICS modems, fellas. Mine has never worked before these ICS builds and it works like a charm now.

Mine has worked great on the ICS builds. At least the last few

yea i figured i'd make mention of this only bcuz i have read others who had problems on ics and methods of fixing was flash back to el29 and get a lock then reflash ics. but what just a reboot with it on, worked for me.

on me it work fine but issues with speeds on 3g so I went back to gingerbread
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My gps never worked for crap, until I updated the modem to FC18 (and beyond), now I get an a-gps lock in half a second, and a true gps lock in 2. ICS gps works great.
Sent from my calculator watch.

Thanks for ur info

Gps works great outdoors... In doors I can't get a lock... My old Evo 4G I gave to my gf gets 6 sats inside :'(
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Admiral2145 said:
Gps works great outdoors... In doors I can't get a lock... My old Evo 4G I gave to my gf gets 6 sats inside :'(
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When the hell do you need GPS indoors?
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GPS on last few ICS builds are pretty solid, it locks within 30 - 45 seconds that's not bad

revamper said:
When the hell do you need GPS indoors?
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Possibly when you want to know where you're going and such before stepping outside? Lol.

[Q] Phone is registering touches that aren't there

Ever so often my phone goes stupid and thinks i'm repeatedly touching the menu 'button' and it does this 5-20 times until i lock the phone and wake it then it's fine for a few hours. Its getting annoying and i don't know what to do to fix it.
It's running stock 4.0.4, no root, no modifications. Only had the phone for about 3 weeks.

a ghost? exorcism?

calisro said:
a ghost? exorcism?
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Funny but i had my phone blessed by the pope before it was activated.

D3athrow said:
Funny but i had my phone blessed by the pope before it was activated.
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too much holy water? no but seriously... what rom are you on? sounds hardware related to me....

calisro said:
too much holy water? no but seriously... what rom are you on? sounds hardware related to me....
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Unsure of the rom it's a Stock Sprint OEM rom i suppose.
http://i.imgur.com/eFSDG.png

D3athrow said:
Unsure of the rom it's a Stock Sprint OEM rom i suppose.
http://i.imgur.com/eFSDG.png
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yep. i'd guess hardware problem.

calisro said:
yep. i'd guess hardware problem.
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was worried it was, thanks.

you could put a custom rom on and see if it persists

It RF interference with the touchscreen controller in low signal areas mostly since the radio has to output more power to sustain the signal.
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times_infinity said:
It RF interference with the touchscreen controller in low signal areas mostly since the radio has to output more power to sustain the signal.
Sent from my Galaxy Nexus using xda app-developers app
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Yea my original Epic had that issue as well it's really annoying. Once I got a replacement phone it stopped. Now my Epic Touch does it, does anyone know of any roms that STOP the issue after having the issue on a phone that is stock. I'm just rooted the hard brick and flash counter have kinda turned me off from flashing. I always try to do alot of research first and I've been pretty busy at work.

times_infinity said:
It RF interference with the touchscreen controller in low signal areas mostly since the radio has to output more power to sustain the signal.
Sent from my Galaxy Nexus using xda app-developers app
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I thought you were full of s*** but then I did some research and you weren't b******* . Thanks for that.
http://forum.xda-developers.com/archive/index.php/t-1815553.html

I was getting the phantom menu pop-ups for a long time, too. Turning off 3G worked, which seemed to confirm that it was low-signal + screen problem. However, since I upgraded to FI03 rooted with Agat's recovery an kernel, I haven't notice the problem. The past 3 or 4 days I've had not issues with phantom menus. Keeping my fingers crossed!

Weird this just now started happening, it was perfectly fine for a 2 weeks.