yashsingh1/xdaforums huggingface dataset:
[eXpo GW820, GW825 IQ ROM Development] Dark9781:
I used dzdecrypt and dzcreate to deconstruct and reconstruct the stock rom and it flashed fine. I downloaded the test rom again and again the flasher crashes. The message I get is 3GQCT_SP_STARTER MFC (a bunch of weird symbols) stopped working. The log I posted on the last post was the wrong log. It was for another install that failed on me so please ignore that. The flasher didn't create a log for the flasher crashing.
[eXpo GW820, GW825 IQ ROM Development] spocky12:
Ok, after a check, it seems that there was a problem during upload (i've found a string "n: close cache-control" in the middle of the uploaded dz file that was not on my version).

I'm reuploading it right now, let's hope it will be fine this time.
[eXpo GW820, GW825 IQ ROM Development] Dark9781:
Hoping that that was the only problem. I remember that there was a problem with uploads with the Incite. I've been having some problems with uploads lately. Seems to be happening a lot with mediafire. I'll try it again once it is uploaded.
[eXpo GW820, GW825 IQ ROM Development] spocky12:
Upload finished, link in 1st post. I've embedded a md5 in the archive.

2Am here, see you in 8h from now :)
[eXpo GW820, GW825 IQ ROM Development] Dark9781:
We have a winner. It worked.

UPDATE: The rom flashed, but there are a bunch of things that aren't functioning properly. At least we know that a rom can be put together now.
[eXpo GW820, GW825 IQ ROM Development] killerskincanoe:
EXCELLENT!

GREAT WORK GUYS!

well now i'm anxiously awaiting your step by step and what all is needed. cuz i'm ready to get down and dirty with this..
[eXpo GW820, GW825 IQ ROM Development] eviltuna:
So what exactly isn't functioning correctly?
[eXpo GW820, GW825 IQ ROM Development] spocky12:
New test rom available.
[eXpo GW820, GW825 IQ ROM Development] eviltuna:
Flashing your V3 now, having trouble flashing with the LG IQ Flasher so I am using my Octopusbox to flash.
[eXpo GW820, GW825 IQ ROM Development] eviltuna:
Ok, phone boots up, but the screen is all black, and non of the buttons seem to work or there is a really long delay to get them to work. Start Menu doesn't work.
[eXpo GW820, GW825 IQ ROM Development] Dark9781:
Just flashed test 3 and can confirm that I am getting the same results as test 2.
[eXpo GW820, GW825 IQ ROM Development] Dark9781:
Test 4 gives the same results as test 2 & 3.
[eXpo GW820, GW825 IQ ROM Development] eviltuna:
Tried rom v7 & v8 and still same problem as the older versions.
[eXpo GW820, GW825 IQ ROM Development] Dark9781:
I was about to try them, but I saw your post.
[eXpo GW820, GW825 IQ ROM Development] killerskincanoe:
hrm. that many tests and still the same result? is anything getting ironed out? or have we hit a brick wall?
[eXpo GW820, GW825 IQ ROM Development] spocky12:
Ok... How can I say it...

Well, I was gonna post the links for test9 & test10 and suddenly, somebody knocked at the door. :eek: Surprise, it was my brain ! Just when I started to think that I would never see it again. :D

Stupid me ! It took me almost 3 days and 10 failed tests to understand that I did too much automatic cleanup in my new kitchen.

I guess this rom will be much better.

Never forget : before blaming the tools, blame the developer :p
[eXpo GW820, GW825 IQ ROM Development] Dark9781:
It's ok spocky. Things happen. I can't tell you how many times I've had brain farts and when I realized what I needed to do to get something to work how stupid I felt. I'm glad to say that test 11 works perfectly.
[eXpo GW820, GW825 IQ ROM Development] killerskincanoe:
HURRAY!

extremely excited!
[eXpo GW820, GW825 IQ ROM Development] eviltuna:
Test 11 works great.
[eXpo GW820, GW825 IQ ROM Development] killerskincanoe:
so i assume with all this flashing going on no SPL of any sort is needed for safe continuous flashing? is there an ETA on when we can get our hands on the working tools?
[eXpo GW820, GW825 IQ ROM Development] eviltuna:
Hey Spocky, any ETA on the kitchen? Maybe even a test release?
[eXpo GW820, GW825 IQ ROM Development] jug6ernaut:
Ital be ready when its ready ;), test 11 was ur test release lol.
[eXpo GW820, GW825 IQ ROM Development] nev310:
i could not get the test release 11 to work. it just says i dont need to update.

edit i feel retarded http://xdaforums.com/showthread.php?t=647900
[eXpo GW820, GW825 IQ ROM Development] killerskincanoe:
you still wining this race spocky? lol j/k
[eXpo GW820, GW825 IQ ROM Development] bitemydonkey:
F5

....

Dang!

....

F5

....

Shoot!

....

F5

....

Nuts!

....

F5 F5 F5 F5 F5 F5 F5 F5

;-) Anxiously awating good news....
[eXpo GW820, GW825 IQ ROM Development] josefcrist:
har har that is pretty much me too. i wish i could do something to help the progress.
[eXpo GW820, GW825 IQ ROM Development] Dark9781:
I know you guys are getting anxious, but when the kitchen is ready it will be ready. Until then we just have to wait.
[eXpo GW820, GW825 IQ ROM Development] josefcrist:
the stock rom is not that bad other than the lg menu that ties in with text notifications and old style contexual (sp?) menus
[eXpo GW820, GW825 IQ ROM Development] jug6ernaut:
i dont think its as much of being anxious but more the fact that there has been zero information after we were all told that it worked lol...
[eXpo GW820, GW825 IQ ROM Development] killerskincanoe:
^^ yea what he said.. starting to wonder if the "one working test" was just a fluke.. :/
[eXpo GW820, GW825 IQ ROM Development] eviltuna:
Spocky says that he's working on the kitchen but has been busy with some RL stuff, there's no ETA on the kitchen right now.
[eXpo GW820, GW825 IQ ROM Development] killerskincanoe:
RL stuff? not familiar with that term
[eXpo GW820, GW825 IQ ROM Development] Dark9781:
Real Life stuff. Contrary to belief Spocky has a life outside of rom development. Give him some time. The kitchen will be ready eventually, but if we keep bugging him he may not want to work on it. When he has it ready he will release it.
[eXpo GW820, GW825 IQ ROM Development] killerskincanoe:
ahh of couse. REAL LIFE! lol yes we do all have that indeed. i don't mind waiting. . . the wait is worth it in gold if we can make our own roms in the end..
[eXpo GW820, GW825 IQ ROM Development] josefcrist:
maybe we should start a donation pile.
[eXpo GW820, GW825 IQ ROM Development] trueg:
I'm thinking about picking up an LG eXpo in the near future. It doesn't look like there is a HardSPL for this phone. Is there any risk of bricking these devices, or is there a backup method to re-flash if something goes wrong? I personally like to cook my own software, but obviously sometimes a change causes the phone not to boot. With a HardSPL I've never had to worry about permanently damaging my phone.
[eXpo GW820, GW825 IQ ROM Development] Dark9781:
You don't have to worry. LG builds these phone lick a brick (no pun intended). They are nearly impossible to brick. I had an Incite and now the eXpo and have yet to talk to anyone that has permanently bricked their phone.
[eXpo GW820, GW825 IQ ROM Development] josefcrist:
thank you lg. so dark have you heard about any progress?
[eXpo GW820, GW825 IQ ROM Development] Dark9781:
The kitchen is still being worked on at the moment.
[eXpo GW820, GW825 IQ ROM Development] trueg:
Are there any valid links to the stock V10 ROM? I wouldn't mind looking at the OEM and SYS to see how they differ from how HTC does it. I'm very familiar with HTC ROMs and I am looking forward to cooking for the IQ.

Update: I was able to dump a copy of the ROM from an LG IQ (Telus), so I have what I need. :)
[eXpo GW820, GW825 IQ ROM Development] Dark9781:
You can get it here:

http://xdaforums.com/showthread.php?t=647900
[eXpo GW820, GW825 IQ ROM Development] trueg:
Thank you Dark
[eXpo GW820, GW825 IQ ROM Development] estarmer:
I just wanted to post a word of encouragement to everyone working on this. Those of us that don't have the ability to make this happen sometimes sound like spoiled kids crying for candy. When you consider that most of this work is done by people that just do this because they enjoy the challenge I wanted to take the time to thank everyone for their work.

I also wanted to keep the thread alive and the intrest up in how cool it's going to be to get rid of all that Bloatware stuck on our phones by AT&T and Telus and the others. These phones are amazing and being able to truely harness all that power the way we want rather then the way the provider wanted is is just an amazing concept. One of the main reasons I don't have an iphone. I just would be happy limited in what I could do with my phone.

So Once to Spocky, Dark and anyone else working to make this happen, Thanks you for you efforts.

Later

E
[eXpo GW820, GW825 IQ ROM Development] killerskincanoe:
^^^ what he said
[neoTouch S200 General] joyqing:
as you konw, S200 GPS is not easy to fix, let me tell you a simple method to fix this problem.

1. Turn off your S200, open rear cover, remove the battery, locate the gps antenna position.

refer to f1.jpg

2. Peel the black gps antenna carefully and turn over from left to right. use the multimeter to measure resistance between two electrodes and you'll find it's short-circuit status (~0 Ohms).

Look carefully at the root location of the antenna, there is a black transparent line, at the end of this line,you can find the short-circuit point, cut off this copper chips until the short-circuit point completely disconnected, then measure resistance between two electrodes to determine it is no longer short-circuit (Infinity ∞ Ohms).

refer to f2.jpg d1.jpg and modification diagram.jpg or this (surcart's pic).

recovery the antenna, turn on your S200 and test gps. Enjoy it !

refer to c1 and c2 pics (compare with HTC P3600, left is P3600, right is S200)

c1.jpg is before modify, c2.jpg is after .

btw, tracking speed is faster than before.

d1.jpg is a large pic

d2.jpg is the details after modified

maybe you can do it without peeling antenna off, try to cut the short-circuit position directly if you are not sure you can completely peel off. refer to d2.jpg or s200_p1.jpg(provided by wysxs, thx) or Victor79's pic .
[neoTouch S200 General] murka3000:
Has someone tried it already?
[neoTouch S200 General] joyqing:
of course, i‘ve finished this modification and tested, gps now is very fast to track
[neoTouch S200 General] BikerBoy030:
what do you mean with "confirm it's short-circuit status"?

but if this methode works, this would be great:)
[neoTouch S200 General] surcart:
Well, this would be excellent if it works as gps signal can be a pain in the ass to get on this phone. Can you explain in more detail and maybe a before and after-picture comparison on the removed "copper chips"? One that is more of a close up than the 2nd picture in your guide.

I'd like to know exactly what I'm doing before trying this out.

Thnx.
[neoTouch S200 General] murka3000:
So can you make a video of this?
[neoTouch S200 General] gaahl1979:
Yes a video would be fantastic
[neoTouch S200 General] joyqing:
sorry for my english,

pls see these two pics (compare with HTC P3600, left is P3600, right is S200)

c1.jpg is before modify, c2.jpg is after modify:

btw, tracking speed is faster than before.
[neoTouch S200 General] surcart:
That's great but can you open your modified s200 and take a picture like the f2.jpg that shows how it should look after you have removed the copper chips ?

We would like a more detailed guide of how to do this.
[neoTouch S200 General] joyqing:
pls see d1.jpg in the first post for details.
[neoTouch S200 General] bbrulez:
Wow... I tried and it works great. Find satellites in a flash.

thank you very much :)

Lucio
[neoTouch S200 General] surcart:
Good for you. I just lift up the tape a bit in one edge and realized that the tape is actually the antenna. Haven't done the mod yet. I expected a chip beneath the tape. How bad was your reception before the mod? Could you get a signal at all or nothing?
[neoTouch S200 General] surcart:
This thing might need a little more research. I was about to try this mod and started to peel the antenna off. I started at the top and the antenna accidentally tore a bit as you can see in the picture. Above and a little to the right of the white spot in the picture you can see the torn part. It's not torn all the way across but it's there. Anyway. I got a bit freaked out thinking I had ****ed the antenna up beyond rescue so I put the battery back in and started the gps viewer. Lo and behold I now have a stronger gps signal than before. Putting my phone in the same spot as before the tare i now have 5-8 satellites instead of the 2-3 I had before.
[neoTouch S200 General] joyqing:
pls see modification diagram.jpg in first post, understand how to.
[neoTouch S200 General] freco:
Why you guys don't use some tape to seal this? I don't think Acer put it there with no use. Did you check radio reception? Maybe that's the reason being there.
[neoTouch S200 General] joyqing:
what do you mean "radio reception" ? GPS radio reception or GSM radio reception? If it's GPS, pls see c1.jpg and c2.jpg in above to compare signal strength. if GSM, pls see GSM.jpg to find where is GSM antenna location. i just modify GPS antenna. i don't think the reason that Acer put it there is just to “reduce” the signal strength.:p

do you think S200 GPS signal strength and tracking speed are too bad? compare with my HTC P3600, i think yes, but after modified, i think no.:D
[neoTouch S200 General] freco:
I meant FM radio reception. Does ti still work fine with no hands free?
[neoTouch S200 General] joyqing:
FM works fine, listening now, no hands free.
[neoTouch S200 General] korl85:
Hi!

Isn't any other way to solve this problem of short-circuit without cutting things inside phone?

Something to isolate it, as freco said?

I wanted it to be reversable, you know, there must be a reason to acer build it that way, they aren't a bunch of incompetent that could not see this short...

PS: What tools did you use to cut it? Just a little stiletto would do it?
[neoTouch S200 General] freco:
Thanks. Maybe I 'll give it a try on weekend.
[neoTouch S200 General] joyqing:
yes, just a needle to do this.;)

this's the most simple method that i got.
[neoTouch S200 General] murka3000:
u wrote it twice, r u kidding us?
[neoTouch S200 General] wysxs:
modified my s200 as joyqing's post. GPS APPs can get very good signal now. check attached pictures. Thanks joyqing for your wonderful work.
[neoTouch S200 General] undermeadow:
I did the modification and I can confirm it works!

Shame on you Acer...
[neoTouch S200 General] joyqing:
yes, you are welcome:D
[neoTouch S200 General] murka3000:
guys! if someone gonna do this pliz make a video!
[neoTouch S200 General] joyqing:
thank you for your reply, my brother:)
[neoTouch S200 General] joyqing:
ok, let more and more users know this method can help them.

Is this a bug of Acer ???:confused:
[neoTouch S200 General] murka3000:
Listen joyqing, I see people say it realy works, but I have a little problem (I think I'm not alone) - I'm just afraid of surcart's situation with a torn antenna...

How exactly did you tear it off? "2. Peel the black gps antenna carefully and turn over from left to right."

And another question: why can't we do smth like freco said - to use some tape to isolate it from short-circuit?
[neoTouch S200 General] gaahl1979:
i would like to know if this GPS signal strength problem can be improved from acer in a new official ROM or its a problem that cant be fixed from acer ?
[neoTouch S200 General] joyqing:
of course, it's key step to peel the gps antenna off, must be careful and softly. i used a needle(maybe a razor blade is better) to finish, first edge then centre and then turn over from left to right.(welding points of antenna are in right).

maybe you can do it without peeling, try to cut the short-circuit position directly if you are not sure you can peel off. reference d2.jpg or s200_p1.jpg

this is the most simple method that i can provide.
[neoTouch S200 General] joyqing:
this is hardware problem not software, i'm not sure Acer should fix it or not, maybe Acer don't think this is a problem because S200 CAN FIND satellites without fix anything.:eek:
[neoTouch S200 General] gaahl1979:
i see......thank you for the quick reply joyqing.
[neoTouch S200 General] murka3000:
It's working!!!

I don't know how you did it, but it ****in' works!!!

Great job, man! Thank you!
[neoTouch S200 General] joyqing:
i'm glad that i've helped you.:):)
[neoTouch S200 General] imjustlooking:
hi joyqing - great job !

but how did you get this amazing idea, to cut of this copper connection :confused:

could it be your employer is acer ;)

greatings !
[neoTouch S200 General] BikerBoy030:
i still dont understand what i have to do, when i peeled off the black "antenna".

what should i cut??

and is it nesseserry that the black antenna does look like bitten? Is it posible, that the black thing looks like that it is not touched??

because if i need to send it back to acer( for reparing it) that they dont say: you touched the hardware, we don't repair it=/
[neoTouch S200 General] joyqing:
i‘m just a user, not acer's employee.:cool:
[neoTouch S200 General] joyqing:
sorry, if you don't understand this method and modification steps, don't do anything pls.:confused:
[neoTouch S200 General] snelopy:
I gave up after I tore the sticker in several places even though I was extremely careful. The thing is stuck down so tightly its virtually impossible to pry away without damaging it. Now I have a rat-eaten sticker and poor gps :rolleyes:
[neoTouch S200 General] surcart:
Sorry to hear that snelopy but I guess it doesn't really make a difference since the antenna isn't being used as is. I used a dull pointy knife to pry under the antenna a little bit at a time. It'll take a minute to get it loose.

I'm still wondering about what part to cut aswell. Is it possible that there are different antennas in units with different manufacturing dates? Mine is nov 2009 and looks as shown in picture attached. I can notice some difference from your antenna joyqing. The line doesn't seem as thick on mine and sits a little lower. As you can see the black lines are absolutely not touching or is this the problem itself? It's hard to see in your pictures since you have already made the mod. Is it the brown part between the black lines I need to cut out?

Also, how do I go about to measure the short circuit? I have a multimeter to measure with but what should I set it to measure? I set it to 200 Ohm and got a measure of 00.5. That's the only measure I can get, everything else is 0. Should the battery be in or out when I measure and is it Ohm i should measure or V?
[neoTouch S200 General] LouisKK:
Thank Bro, This is great help with GPS.....:)
[neoTouch S200 General] :
maybe you're on to something, your looks ok i think, joyqing what do you think?

Maybe it was a manufacturing defect on certain batches. Those of you that have already opened the antenna, can you post the manufacturing date of your phone?
[neoTouch S200 General] murka3000:
I've just finished to write an article abt repairing gps, but I had no time to translate it, sorry :(

But you can see it translated by Mr.Google.
[neoTouch S200 General] joyqing:
00.5 (~0) Ohm means short circuit, Infinity ∞ Ohm means open circuit. it's better to remove battery before modify, yes, measure Ohm not V !!!

pls see cut point.jpg. Good luck:)
[neoTouch S200 General] joyqing:
pls refer this http://xdaforums.com/attachment.php?attachmentid=300111&d=1269746554

good luck!
[neoTouch S200 General] joyqing:
refer http://xdaforums.com/attachment.php?attachmentid=300111&d=1269746554 pls

good luck !
[neoTouch S200 General] joyqing:
refer http://xdaforums.com/attachment.php?attachmentid=300111&d=1269746554

my antenna looks like this. MFG Date: Dec 2009.
[neoTouch S200 General] freco:
Nice work you have done there. ;)
[neoTouch S200 General] :
ok i did the mod. gps does get better reception, in places i got from 2 to 5-7 sats indoor. one thing i noticed though, the resistance never dropped to 0 ohms. it went from something like 0.05 to 0.03 ohms. a big needle is indeed very handy to peel the antenna off. mine was nov 2009
[neoTouch S200 General] surcart:
Thank you joyqing for pointing out the cutting point more specific. That last picture makes it alot easier. I've done the mod now and must say it's working very well. Can even get a fix with Garmin inside wich was pretty much impossible before.

kostaskodes: Either I did something wrong or you did but my resistance in the antenna was to great to measure with the multimeter. The reading of 1 didn't change when i put the probes on the electrodes. The resistence should accually be greater I think than the first reading. Bc when it's short-circuit the resistence is pretty much 0.

Is this right joyqing? What should the reading say after mod?

Any way, big thanks to you joyqing for sharing this great mod with us and for your continuous support. :D
[neoTouch S200 General] joyqing:
yes, you're right. after mod, the reading is Infinity (∞) Ohm.

Enjoy your F1. :)
[neoTouch S200 General] joyqing:
thank you for sharing your experience.:)
[neoTouch S200 General] sin+:
When someone says 0 resistance (short circuit) means a very small resistance near 0, but not really 0 because 0 resistance cannot be found in nature.

0.05 to 0.03 ohms are considered short-circuit (0 resistance)
[neoTouch S200 General] clio94:
Thank you very much.Μy acer is oct 2009 dated and never i was pleasant from gps signal.Τhanks to your mod i have very good gps signal
[neoTouch S200 General] tsamolotoff:
Great work joyqing! I wish there were someone who can hack on the audio drivers in order to remove that nagging noise-suppression for phone calls and LF cut-off
[neoTouch S200 General] shum-z:
It really works! Thanks joyqing!
[neoTouch S200 General] doug107hk:
I don't find any change. :(

Fortunately, seems not weaker. :)

Is the gap width also import ? Because RF circuit is not easy to be design and even not simply be understand. :o
[neoTouch S200 General] riotman:
my device was produced in Jan 2010 and to be honest... my gps signal is just great.... i wouldnt know how to improve it. sat fix within few seconds , even in buildings....

So i dont know where a issue should be
[neoTouch S200 General] tommyher:
It is really work very fine.

真的是太謝謝您了

竟然在窗邊15秒鐘內定到位

請受我一拜
[neoTouch S200 General] tom73__0512:
I am hardware developer (not phone)

Does anybody have a schema about the circuit of GPS antenna (or the whole phone)?

Or service manual?

I would like to find out the reason.
[neoTouch S200 General] korl85:
I just did it on my phone.

It WORKED PERFECTLY and its VERY SIMPLE MODIFICATION

Its been a week and none wrong till now.

GPS signal is very good now.

THANKS A LOT joyqing!!!!
[neoTouch S200 General] joyqing:
i'm glad as same as you ! 你终于知道问题了，哈哈:D
[neoTouch S200 General] joyqing:
you're welcome!

thanks for your testing!
[neoTouch S200 General] surcart:
It's possible that acer has addressed this issue from januari production. I guess you'r not interested in prying off your antenna and photograph it for us ?
[neoTouch S200 General] commanderaj:
Unbelievable simple mod, gps signal is now instant!

Do it!
[neoTouch S200 General] joyqing:
yes, just Do:)
[neoTouch S200 General] freco:
I confirm this. I thought I had no problem in the first place. Now I have done the mod and WOW... what an improvement.

Thanks joyqing.
[neoTouch S200 General] joyqing:
My pleasure. :)
[neoTouch S200 General] hellepyon:
YES, this is successful for me.Success in 15s of building window
[neoTouch S200 General] Valueff:
Hi guys! Interested in your research in the field of GPS. Are you sure that you modify the antenna, the antenna is GPS?
[neoTouch S200 General] surcart:
Well. It says gps antenna on the actual antenna and the reception of gps-signals increases when we modify it so yes. We're quite sure. :)

Check pictures in previous posts for reference.
[neoTouch S200 General] Valueff:
Ok. Looked pictures. Indeed, the antenna is clearly written GPS. :) The question was withdrawn.
[neoTouch S200 General] Arto:
Hi joyqing, I modified my antenna like you show us and I must say : bravo, the gps fix is very fast I have no regrets to have cutted my s200 :-p thank you very much !