FORUMS
Remove All Ads from XDA

Modify S200 GPS antenna to improve GPS signal strength

319 posts
Thanks Meter: 40
 
By joyqing, Senior Member on 24th March 2010, 10:49 PM
Thread Deleted Email Thread
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 .
Attached Thumbnails
Click image for larger version

Name:	f1.jpg
Views:	5778
Size:	96.1 KB
ID:	298571   Click image for larger version

Name:	f2.jpg
Views:	5920
Size:	101.3 KB
ID:	298572   Click image for larger version

Name:	d1.jpg
Views:	5526
Size:	101.5 KB
ID:	298975   Click image for larger version

Name:	d2.jpg
Views:	5198
Size:	98.1 KB
ID:	298988   Click image for larger version

Name:	modification diagram.jpg
Views:	4654
Size:	41.5 KB
ID:	299226   Click image for larger version

Name:	c1.jpg
Views:	4121
Size:	93.0 KB
ID:	299361   Click image for larger version

Name:	c2.jpg
Views:	3665
Size:	72.5 KB
ID:	299362  
The Following User Says Thank You to joyqing For This Useful Post: [ View ] Gift joyqing Ad-Free
 
 
25th March 2010, 02:55 AM |#2  
Junior Member
Flag Tel-Aviv
Thanks Meter: 0
 
More
Has someone tried it already?
25th March 2010, 04:06 AM |#3  
joyqing's Avatar
OP Senior Member
Flag Sydney, AU
Thanks Meter: 40
 
More
of course, i‘ve finished this modification and tested, gps now is very fast to track
25th March 2010, 06:18 AM |#4  
BikerBoy030's Avatar
Senior Member
Thanks Meter: 25
 
More
what do you mean with "confirm it's short-circuit status"?

but if this methode works, this would be great
25th March 2010, 09:43 AM |#5  
Member
Thanks Meter: 0
 
More
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.
25th March 2010, 11:13 AM |#6  
Junior Member
Flag Tel-Aviv
Thanks Meter: 0
 
More
So can you make a video of this?
25th March 2010, 02:21 PM |#7  
Junior Member
Thanks Meter: 1
 
More
Yes a video would be fantastic
25th March 2010, 04:44 PM |#8  
joyqing's Avatar
OP Senior Member
Flag Sydney, AU
Thanks Meter: 40
 
More
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.
Attached Thumbnails
Click image for larger version

Name:	c1.jpg
Views:	531
Size:	93.0 KB
ID:	298941   Click image for larger version

Name:	c2.jpg
Views:	459
Size:	72.5 KB
ID:	298944  
25th March 2010, 04:48 PM |#9  
Member
Thanks Meter: 0
 
More
Quote:
Originally Posted by 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, track speed is faster than before.

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.
25th March 2010, 05:13 PM |#10  
joyqing's Avatar
OP Senior Member
Flag Sydney, AU
Thanks Meter: 40
 
More
Quote:
Originally Posted by 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.

pls see d1.jpg in the first post for details.
25th March 2010, 08:16 PM |#11  
Junior Member
Flag Salerno
Thanks Meter: 0
 
More
Wow... I tried and it works great. Find satellites in a flash.

thank you very much

Lucio
Subscribe to Thread
Previous Thread Next Thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes