yashsingh1/xdaforums huggingface dataset:
[Galaxy S I9000 General] SysGhost:
This does help. Very useful piece of information.

I did experience the "floating around" problem again, but not as often as before the hardware fix.

Could very well be that the device detects my bike as a vehicle ( in a way, is correct ). But I think pedestrian mode would be much better even for a bike. Specially when going offroad. I also noticed how the marker tends to stick itself to roads, even when I'm way off the road.

Will try this and report back soon. (If I find the proper file to edit that is ;) )

EDIT:

Was easy enough. The proper file in my case was /vendor/etc/gps.xml (CyanogenMod 10.1.0, Stable)

There's a commented gll section too. Ignore it.

Added the line below at the end of the gll section. Just before ">". (It's imprortant that the line lands inside the tag itself, and not between the start and the end.)

DynMode="DYN_PEDESTRIAN"

The section now looks like this:

<gll
LogPriMask="LOG_DEBUG"
LogFacMask="LOG_GLLAPI | LOG_DEVIA | LOG_NMEA | LOG_RAWDATA | LOG_DEVMS $
FrqPlan="FRQ_PLAN_26MHZ_2PPM_26MHZ_300PPB"
RfType="GL_RF_4751_DANUBE_EXT_LNA"
WarmStandbyTimeout1Seconds="5"
WarmStandbyTimeout2Seconds="10"
DynMode="DYN_PEDESTRIAN"
>
</gll>
[Galaxy S I9000 General] somator:
i used it with my nexussgps pack and left the phone 'in the window' for like 15 minutes and expected no floating

be caution not to break the xml code :)
[Galaxy S I9000 General] civikakias:
I fix it too and the gps works great! Thx for the info.:cool:
[Galaxy S I9000 General] somator:
there is an unconfirmed rumour that gps module is not shielded enought and catches some interferences from cpu or gpu i dont remember
[Galaxy S I9000 General] somator:
glad i helped :)
[Galaxy S I9000 General] przemo3679:
It works

It relay annoying when you use endomondo and fix just disappears. I didn`t have so little soldering, so what i did is a little tinny stalactite, and now it works properly.:D Sorry for bad english.
[Galaxy S I9000 General] slyce95:
Thank you

Thank you LEENO. It works ! I used the second fix (aluminium) because I broke contact on antenna (cable to big). Fix in 15 seconds, 8-9 sats on view. You saved my i9000 !
[Galaxy S I9000 General] Lisko:
Nobody can help me?
[Galaxy S I9000 General] jokeyth:
I did it and it works. It is actually the real fix cause the other solution here presented http://xdaforums.com/showthread.php?t=878970 works somehow but when it does you can reach a C/No of about 30 dBHz on average each satellite. With the one proposed by Leeno you can get the normal C/No of 40 dBHz per satellite which is the normal value for outdoor conditions. If you get less with your gps receiver means that something is not done (Hw or Sw) as it should be...

Thankssssssssssssssssssssss

Jokeyth
[Galaxy S I9000 General] piesax:
ok

OK good mod
[Galaxy S I9000 General] karbon222:
I will try this :)
[Galaxy S I9000 General] AusMatt:
You mean S/N as in signal to noise. And the units are just decibels dB.
[Galaxy S I9000 General] jokeyth:
Not at all! It is not a Signal to Noise ratio (in that case they would be just dB), it is a C/No and it is measured in dB Watt per Herz. It is the ratio between the carrier power and the noise spectral density. It is a measure independent to the receiver chain position (the S/N is not). Satellite Navigation uses that measure normally and all GPS chipset provides as output that measure instead of SNR. You would not have a positive SNR from a CDMA signal broadcast from space at a power which is less than 25W (i.e. the signal is buried in the noise floor), while you have a positive C/No. The relation between C/No and S/N is connected with the bandwith of the demodulation chain where that specific SNR is referred to.

I hope to have explained myself in a clear way.

Maurizio.
[Galaxy S I9000 General] fishears:
I had some good success with these fixes for a while but then my GPS turned, once again, to ****. I looked into replacing the actual antenna but its really just some bits of copper tape and 2 connections stuck to the phone housing. So I decided to buy a complete mid-housing (which includes GPS, BT/Wifi and GSM antennas).

I found a genuine part here for just £3.99 delivered free. I've got it fitted and I'm overjoyed at the GPS performance I get now. It's better than it was when I first got the phone.

Also good if you screw up your antenna with your poor soldering skills ;)
[Galaxy S I9000 General] Brokeno:
look interesing

look interesing
[Galaxy S I9000 General] tissa:
it works great! 7 -10s for a fix!

thx
[Galaxy S I9000 General] Soerdroid:
Thank you so much for the link. I have been looking for a gps antenna replacement for months. How did you connect the second, faulty connection on mainboard? Same method as suggested in this topic?

Btw; I also removed my gps antenna (copper strip/tape) and replaced with aluminum foil and it is working better than the original antenna. :silly:

1 meter behind the window.

https://www.dropbox.com/sc/qanna9lsuhwovyq/rVwUGAXR8p
[Galaxy S I9000 General] fishears:
I used the solder-blob method. Never fails.

sent from somewhere..
[Galaxy S I9000 General] isoomail:
Thanks

interesting thread. those in need of good working. :good:
[Galaxy S I9000 General] pismycop:
Very good

very god job
[Galaxy S I9000 General] thyaguster:
This works! My GPS sucked hard, to the point of it being unusable.

I made the fix by soldering a wire from the board to the antenna.

It works flawlessly now.

Thanks.
[Galaxy S I9000 General] Lei M:
my GPS works better now;)

especially indoor

have done the fix with a small wire after a few fails with the first method.
[Galaxy S I9000 General] cauboy:
Thhaaaaannnnkkkkkkssssss.

My gps is alive again.....
[Galaxy S I9000 General] capillonpub:
Hi,

I've made a mixte of some methods from this thread and also from other forum:

1)i've scrap the paint on the top of antena area, hoping to expose a part of copper (this fix is working on some smartphone like "wiko peax"). This is not working on the galaxy S+ as the antenna seems to be made with a soft material. No GPS fix improvement !

2) as i'm not very good in soldering, i copied the work done by somator on the metalic conector, gently pulling up the upper part of the conector to improve the contact with the antenna.

3) i've made a new antenna, by flattening the core of a copper wire. I read somewhere that the optimum length of a GPS antenna must be a multiple or fraction of 19 cm to be consistent with the wavelength, so i cut 3.8 cm from the strip of copper, I've pass the strip from the contact inside to the outside through the existing hole in the cover.

This is a quick and dirty solution, but it works great :victory: ! i dont know if the second part is enought to work without the additional antenna, but now i've got a GPS fix very quickly !:laugh:

If you decide to build an extra antenna like this, my advice is to build it thinner than mine to easily put in place the back cover of the phone.

here is some pictures
[Galaxy S I9000 General] fishears:
Nice work. Very useful post. It would be good to have this added to the start post or at least linked.

sent from somewhere..
[Galaxy S I9000 General] capillonpub:
Hi,

I made a little upgrade:

- use a thiner band of copper in order to easily close the back cover, (always same lenght of 3.8 cm)

- put the band of copper in contact with the other conector of the antenna

Result: it's much much better ! :good:

With the first try the GPS fix was quick but the GPS less sensitive, with sometime loss of signal. Now fix is still quick and the signal level higher.

the advantage is that it's now easier to make some test with antenna extension (bigger, different shape or material) that i can connect with the visible part of the copper band, just removing the back cover....
[Galaxy S I9000 General] somator:
very nice, maybe we should ask moderators to make it sticy and them to reedit the opning post as this method works much better than any other fix i saw (either app or any file edits) ??

---------- Post added at 10:41 PM ---------- Previous post was at 10:40 PM ----------

btw http://xdaforums.com/showpost.php?p=43353580&postcount=481
[Galaxy S I9000 General] darkknigh_t:
Greetings i have a i9000 European and i followed the first post guide and i dont have the third contact at the bottom just two and the third one that's suggested i dont have so i removed the conductive gumy from the little small square at the left top side and tried to connect it with the wire but i just cant close the plastic frame even if i manage then my volume rocker doesnt sit right so i tried to put a solder ball on each side but my gps still sucks. Now ive seen someone mentioning the problem beeing in the bigger square with the bendable contact next to it not the little one. So im a bit comfused now? Do i need to bend the bigger one up a bit and still solder the wire to the little one and the frame?
[Galaxy S I9000 General] capillonpub:
Hi,

I made a small test yesterday:

- disassemble the back cover, battery, sim & sd, and internal plastic frame.

- put back battery, sim & sd, and power on the phone

- check with "GPS Test" the signal level & fix without antenna: no fix, no signal !

- use metallic screwdriver as antenna, in contact with the "bigger square" contact, the one bendable: quick fix but low signal level

- use metallic screwdriver as antenna, in contact with the "small square" contact, the one gumy: quick fix and high signal level.

That's why i decide to modify my new additional copper antenna to put it in contact with the small "gummy" contact.

@+
[Galaxy S I9000 General] darkknigh_t:
Thats pretty clever i forgot about that il try that thank you :)
[Galaxy S I9000 General] megasanyi:
hello

it started with solder and will do until I broke off ...

I can not return to solder :( there is no GPS signal

absolutely necessary for the upper contact?

yet to be soldered to get a GPS signal?
[Galaxy S I9000 General] derekzoli:
stupid questions: how do I remove rubber? do I need solder or shall I scretch it away?

Thanks - Derek Italy
[Galaxy S I9000 General] lukesan:
Did some testing with mine since my wife had some 3 to 5 numbers stronger in GPS Test. Mine never came over 36 signal strenght on 4.2.2 , even with that software fix.

So I opened up mine and placed the approx. 1cm wire not down towards the home button but towards the top (where the other contact is) of the phone when closing it,

Just checked outside and got like 3 above 40 with 45 max. On GPS test the accuracy immediately went to 5m. Also looking on google maps it was spot on.

Even if I have a S3 I still love my S1
[Galaxy S I9000 General] MrAndroid12:
did i do something wrong?

Fixes in under 3 seconds with over the top snr (taken screenshot 5seconds after)
[Galaxy S I9000 General] M0Rf30:
very interesting thread
[Galaxy S I9000 General] albertocastillo2001:
Hello

Hasn't anybody thought that maybe a better solution could be to put a small thin paper between the "plastic antenna thing" located in the back cover seen in this photo with the number S1W10?

Maybe a thin paper could be inserted between the back cover and that thing in the areas where the metal connectors show up, increasing pressure to the connectors in the Galaxy S

That way no solder would be required and should be an easy fix

Has anybody tried?

Thanks
[Galaxy S I9000 General] jose.celestino:
Somebody has. There's another thread with that solution but, if memory serves me right, it ends up being just another temporary fix if it improves anything at all.
[Galaxy S I9000 General] somator:
yup, nothing beats olid connection - other solutions are temporary
[Galaxy S I9000 General] goliat88:
Made connection with cable and gps is on after few seconds WOW!!
[Galaxy S I9000 General] DuMaNLAR:
in english: thank you very much. good working. I've used solder but did not use cables. because, enough to touch the antenna. only, Solder cover the lower part of the antenna

in turkish: kapaga değecek olan antenleri kaldırın. kapaktaki gps anteninin alt kısmına leihleyin ama yumuşak kısmı ellemeyin çünkü orası yumuşak iletken. yumuşak kısım ile lehim birbirine değerse sorunsuz çalışıyor. artık gps status programının uyduları bulmasını bekleyin.
[Galaxy S I9000 General] Pempu:
This thread should be 100% sticky. I cannot phantom why it hasn't been marked as one.

So up we go.

Thank you a ton for OP.
[Galaxy S I9000 General] somator:
there are no mods here for years
[Galaxy S I9000 General] paulus_germanus:
works flawlessly

Done! A lil bit of soldering inside of my SGS+ and the GPS works way better than it did before. Thx a million LEENO!:D

:good:
[Galaxy S I9000 General] finite:
No real difference on my phone with the hardwire mod and there isn't much room for the wire or solder. So first attempt the solder blobs were too high affecting the volume rocker alignment, 2nd version shortened the wire, 3rd swapped the insulated wire out for something thicker 1.5mm x 1.5mm Solda Mop with a bit of sleeving.

Personally I should of stayed with the conductive rubber, but my phone is a bit beat up.
[Galaxy S I9000 General] Elazizli:
Fix it usually does not work. Galaxy S chronic problem. GPS infrastructure is very weak.

Sorry bad English.
[Galaxy S I9000 General] koji-lik:
Hello, i recently replaced display+digitalizer+whole case. Since that i get very bad wifi reception signal. I think it is something about case contact. I tryed replacing cable but it didn t help. Does someone know what could it be? tnx
[Galaxy S I9000 General] lukesan:
Weird and stupid that even on the Nexus 5 and some others this is still an issue. I already had to fix my Nexus 5

Why can't they solder the antenna separately on a small flexible PCB is just plain stupid.
[Galaxy S I9000 General] Hawaiihemd:
Fixed in 5min

I got me an gt-i9000 four days ago on ebay for 40€ just for playing around (flashing roms, root apps etc.) and to have a backup phone lying around, just in case I brick a friend's phone trying to flash/root it... I'm pretty new at this...

So I chose the SGS because it seemed to me like a (still) popular device. I flashed CM11-M9 on it before I even tried GPS function. When I finally checked, I was quite angry since it did not work AT ALL, I mean up to six satellites barely registering over 10 on GPStest, no fix for over 10min in the open air. So the GPS was useless...

After trying the "spanish-second-antenna"-fix in one german forum with no improvement whatsoever, I threw that out and went for the method of putting a solder-blob on the ground connector on the outside frame and bending up the GPS connector on the board. I left that sponge-connector-thing just as it was, put the soldering on the frame, snapped the frame back in position, booted the phone and BAM (I'm sorry but there's no better word tho describe the effect ;)) my GPS is rocking... found a lock within 5-10 sec cold. Didn't lose the lock once on my 15 min quick test walking/driving around. The image speaks for itself i guess.

To quote Col. John 'Hannibal' Smith: "I love it when a plan comes together."
[Galaxy S I9000 General] MrAndroid12:
TBH, there is more to the i9000's GPS than just it's antennas.

I believe the GPS chips on it are also faulty
[Galaxy S I9000 General] drekas:
Tell me something, why did i read this just now ? I have the SGS since it was released, always with this ****..G problem.

I manage to get help and do this, it's working so good know.

Many thanks :D
[Galaxy S I9000 General] apneist:
thanks for that, I fixed it and now it works as it should :)
[Galaxy S I9000 General] scarmau:
Nice tutorial :D

Thanks man! I really appreciate this guide :laugh:
[Galaxy S I9000 General] Norbert_H:
excellent thread!

Hi!

Guys, I'm so happy that I found this thread. It changed the GPS experience with my I9000 dramatically. Here is how I modified my phone:

1. Removed the "conductive rubber". It was very simple with only a thumbnail.

2. Soldered a very thin (!) wire and connected to the opposite side of the case

3. Removed the connector

(yes, I did!). Also simple: Held the soldering iron for 2-3 seconds onto it and removed it with a tweezers.

4. Soldered again a very thin wire and connected to the opposite side of the cap.

This was the easy part so far. My main problem was to close the phone again and especially ensure that the volume controller works properly. To make this possible, I decided after some unsuccessful tries to use only two non-insulated wires of a strand. To say it clear: Not the complete strand, but only two wires of the strand, one for each of the two connections! This is in contrast to some recommendation here, which says one shouldn't use too thin wires. Well, mine are very thin, but they do the trick. It is not very hard to ensure that they don't touch other conductive parts, but one has to be careful (they are non-isolated!!) and the wires should be as short as even possible.

I have now fix in about 10 secs, after some time it uses 9-10 satellites with accuracy of 5 m. SNR shows 28 - 40. Even in the house there are still 6-8 birds in use, accuracy 10 m. I still can hardly believe this. It is still my I9000!!!!

Thanks to everybody who made this pioneer work!!
[Galaxy S I9000 General] scarmau:
Hi, I've follow the totorial in first page but now the gps icon stops flashes and remains still. so i also connect the two gps antenna contact with two wires(without close the matherboard cover) but the problem persist. Now my galaxy s doesn't find the position.

Someone can helpme?

sorry for my bad english.
[Galaxy S I9000 General] dove_g:
Best solution is to sell Samsung i9000. GPS on this mobile sucks.

HTC is good option and also tested Samsung Note, S2, S3, S3 mini and S4 mini. Great GPS on all mentioned devices.
[Galaxy S I9000 General] fabio1961:
Thanks Leeno I have the same gps problem with my i9001 (CM11) but, with your solution, the phone it's trasformed into a complete off-line navigator . I don't use a solder for security and I have operate with the Icampori mode.

Thanks a lot to all, grazie grazie grazie.

Ciao.

Fabio
[Galaxy S I9000 General] khanxay:
Hi,

I just saw this. I'll definitively give this a try even the phone is not my daily run now.

Thanks a lot. :)
[Galaxy S I9000 General] saamaanm:
I have unusual problem

I fix the problem and it work good but finally when I close battery cover all GPS signal die and the GPS doesn't work again

Please somebody help me
[Galaxy S I9000 General] Airdawg5571:
Hi, guys!

I've also recently fixed my old SGS' GPS connector. I've torn down the rubber contact and cleaned up the surface. I went the quick and dirty way of having two tall balls of solder on each part: one on the board and one on the back case. Although it's a risky maneuver and I risk cracking the motherboard, I still think solder is malleable enough to sit itself right without doing damage. Setting the case back up, indeed leaves a little gap, but there's not much pressure on it.

Signal reception is crazy now. 5-10 seconds for 9 sats(sometimes even less) and maybe up to 20-30 from a cold start (no AGPS). Screenshot is in my neighbourhood, with 2 storey and 4 storey buildings in each direction at some 50m away.

[IMG="GPSTest screenshot"]http://i.imgur.com/6Rpn7mk.png[/IMG]
[Galaxy S I9000 General] hugo5:
The pictures have gone ...

Hi Leeno!

Unfortunately the imageshack pictures have vanished. Could you please reupload them again.?

Thanks in advance!

Greetings,

Hugo
[Galaxy S I9000 General] Darkestnoir:
Yeah i need it too :crying:
[Galaxy S I9000 General] MoneyFace =p:
I just managed to plug out that antenna as told and reassemble back everything without soldering done, GPS signal is still alright... :o

---------- Post added at 07:41 PM ---------- Previous post was at 07:37 PM ----------

I'm wondering what if i stuck some bit of crushed aluminium foil in between the slit on the antenna? It should work right?
[Galaxy S I9000 General] Kond3P:
I have usually some kind of a signal after I used faster GPS app. Before that I couldn't get a signal anywhere. GPStest app says I have 3 or 4 satellites in use with 15-30 signal strength. Maybe I should try this, I don't know yet...

Poked through GT-I OVERNINETHOUSAND
[Galaxy S I9000 General] Kops:
I have had intermittent issues with my GPS. It usually works, taking a few moments to lock on...but I have found that it can be very weak at times. Will this fix help improve my GPS, or is this strictly for those whose GPS does not work at all?
[Galaxy S I9000 General] dvodd:
well done :) thnx
[Galaxy S I9000 General] CatalystWon:
Just try it! But

make sure the foil does not

slip/move/relocate and

touch other metal components

! In addition to better conductivity, that is a reason to solder instead.
[Galaxy S I9000 General] iclavijos:
Many many many thanks! :laugh:

Tried it yesterday afternoon and the improment was huge! I can get a precise location when being outdoors in 10-15 seconds (without using Google location services) and when using the phone for my running activities the precision has also improved quite a lot.

Well done, mate!
[Galaxy S I9000 General] mainecrab:
Here are the pics of my Vibrant. I am glad to know I thought I messed up the GPS side and soldered the other side but I guess that is for something else maybe signal.

Is this done in the same place?
[Galaxy S I9000 General] Trainer_H:
so the gnd point should i just remove and connect to the gps antenna. so i connect the gnd with the gps connector, because both connectors on the gps antenna are connectet.

is this right?
[Galaxy S I9000 General] LEENO:
PCB and upper cover are the same as tutorial, but i need to see lower cover for check if your quadband antenna have 2 or three contacts. If it have 2 contacts you can follow tutorial
[Galaxy S I9000 General] stuffynet:
Did the job. Second way is safer. Works like a charm. I get 3-4 satellites inside my room (before none) and 10-20sec lock on outside. Thanks man. Cheers;)

Sent from my GT-I9001
[Galaxy S I9000 General] nnexuss:
It´s necessary a iron solder to do that?

Regards.
[Galaxy S I9000 General] stuffynet:
From my point of view yes. But be very carefull.

It is the only way to obtain best and rigid connectivity between the board and the gps antenna.
[Galaxy S I9000 General] closedcircuit:
Take a look at this picture for the full view:
[Galaxy S I9000 General] combathero:
I just did the second method last night and I can say TS deserves much respect for sharing this. I have never had sattelite fix so fast before. BTW I have a question, during my soldering session I tried to multi-test some solder point (especially the volume up button), is it safe to mount the unused pin all together with the volume up button solder point? I find it hard to solder it so I include it to solder point similar to TS image on the first page. I'm wondering if there will be any issues in the long run. TIA

,
[Galaxy S I9000 General] Trainer_H:
which one did you made?

---------- Post added at 10:50 AM ---------- Previous post was at 10:45 AM ----------

i made this version. http://www.android-hilfe.de/anleitu...leitung-mein-gps-hardware-fix-fuer-i9000.html

Can i connect with this version http://www.android-hilfe.de/attachm...-mein-gps-hardware-fix-fuer-i9000-6-kopie.jpg both gps contacts to the Antenne?
[Galaxy S I9000 General] CatalystWon:
Thanks for the Excellent link! Are you able to locate the original page in the original Spanish language, for those of us that don't speak German. thanks!
[Galaxy S I9000 General] Trainer_H:
This is also a german forum so i don't think there is a spanish or englisch version, but you can use google translate.

Is this methos also possible with the version of the other forum?

Because they connect both connectors.
[Galaxy S I9000 General] ifrxda:
Excellent

You made my day :cool:

So easy and such a huge effect.

Thanks for this investigation, never thought I could have accurancy of 5 meters. GPS even works indoors, unbelievable.
[Galaxy S I9000 General] exploit20:
Heyy tnx for GPS fix :D

What about WiFi connector? Where is it on the board?

Tnx
[Galaxy S I9000 General] CatalystWon:
Yes I noticed it is a german forum, however the comments embedded in the pictures are spanish so it must have originated somewhere else. I had already used G-Translate - its OK. Thanks anyway:cowboy: