Database Users

What are the metal pins that connect to the battery cover?

Ever notice how there are two metal pins on the back that make contact with the metal cover? Why did HTC put them in there?
Also would one be able to hardwire the antenna too these points so that the metal battery cover can be used as an extended antenna?

msoler8785 said:
Ever notice how there are two metal pins on the back that make contact with the metal cover? Why did HTC put them in there?
Click to expand...
Click to collapse
They are probably there to cushion the force of the back place being clicked on.
msoler8785 said:
Also would one be able to hardwire the antenna too these points so that the metal battery cover can be used as an extended antenna?
Click to expand...
Click to collapse
Not a chance, have you ever pulled a HD2 apart? I severely doubt it is a wise idea. Hardware modding of a phone is a fools game.

Is it to dissipate heat?

It's for the car GPS kit.

jdwrrzmm said:
It's for the car GPS kit.
Click to expand...
Click to collapse
Not the 3 pins, the 2 balls on either side of the phone.

Is it really for a GPS kit? Maybe that concept kit that HTC never came out with? But what would they do it can't be for power.
Sent from my HTC HD2 using XDA App

This comes up every month or so, and i agree with Kalavere in that they are there to keep the back plate snug. They are spring loaded, so the plate wont get wobbly with extended clicking on/off. Since the reset button is under the back panel, it seems reasonable that HTC would expect the plate to be removed fairly often.
I also think it plausible that they are earthing points for the antenna, but i think that a little less unlikely.

Not sure exactly what they are for but I am positive they are not there to keep the backplate snug.
They are some kind of a contact point. The metal cover bridges the connection. You will notice that the cover is clean where the points contact.
Never seen the car kit but that is a possibility. I doubt very much that they have anything to do with the antenna. My guess is that they might simply be a ground shield.

I had the same question, I rung up the HTC support here and they told me that even they are not sure, but they did mention that on the inside, it's linked to the antenna for the GPS. Don't know what they mean by that but I guess, it's either an earth (since, if you notice, the area where the nobs rest has the paint scrapped off), or the whole back plate is an antenna. I tried to insulate it, no diff to operations of the GPS or Phone.. *shrug*
msoler8785 said:
Ever notice how there are two metal pins on the back that make contact with the metal cover? Why did HTC put them in there?
Also would one be able to hardwire the antenna too these points so that the metal battery cover can be used as an extended antenna?
Click to expand...
Click to collapse

weird g1 hardware issue

Ive had my g1 for about half a year now and have never noticed this before, but when its plugged into the wall charger, the little metal screen over the speaker becomes electrically charged and can shock my ear or whatever else i touch to it.
Is this a known issue or is this how my service providor controls my mind?

Instead of phone I would rather check your house electrical wiring for proper grounding

What metal screen...? There's no external metal on the g1 that I can see.

goldenarmZ said:
What metal screen...? There's no external metal on the g1 that I can see.
Click to expand...
Click to collapse
hes talking about the metal screen thats where the ear piece is if you look in you can see it

dskum said:
Instead of phone I would rather check your house electrical wiring for proper grounding
Click to expand...
Click to collapse
bizarre, its not doing it today. must be something weird with the wiring then..

I'm sorry, but that's pretty damn funny.

stonedchef said:
bizarre, its not doing it today. must be something weird with the wiring then..
Click to expand...
Click to collapse
Do you have carpets or rugs? If this is the case, then YOU are getting yourself charged wrt the electrical NEUTRAL and then DISCHARGING through your phone!
THIS IS EXTREMELY DANGEROUS FOR YOUR PHONE!!!! You could FRY it beyond ANY hope of repair. You are literally shocking the thing with HUNDREDS of volts of electrical potential!
I STRONGLY suggest that if something like this is happening, that you get yourself a GROUNDING PAD and DISCHARGE yourself before touching the phone!

HARDWARE problem,help me ç_ç

http://www.youtube.com/watch?v=TbR56jSplRs
at 6:34 the guy touch a copper piece that is glued on a plate.
I've bought an atrix and in my phone that thing is sliced.
it's a big problem?it's front camera or speaker piece?

Hi,
If it's in copper, I think it's the ground for the top PCB.
It's better if you can found a way to keep it connected.
But it's possible that work sliced, it depend of the drawing of the PCB...

-JFK- said:
Hi,
If it's in copper, I think it's the ground for the top PCB.
It's better if you can found a way to keep it connected.
But it's possible that work sliced, it depend of the drawing of the PCB...
Click to expand...
Click to collapse
it's half conncted..so there would be no problem if a part is connected to the plate?

Put a small sheet of tape to fix it and go head !
It is not a problem for me.

Desire HD GPS Fix

After having no GPS for about a year and getting annoyed with it not working I accidentally found a post about soldering wire to the contacts.
Well, rather than soldering I wondered if I could make a little tin foil antenna. Works a treat!! Pics below:

Nice
Sent from my Desire HD using xda premium

Seems like a great idea,, much easier than soldering,,,, did you sandwich the foil between two pieces of paper ,, was it easy to clip it back together with this mod.
Very tempted to try it.

hi,im struggling with enanche GPS signal too. just two questions..is it just aluminium foil ( http://upload.wikimedia.org/wikipedia/commons/1/12/Folie_2007.jpg ) or some other foil? and behind,is a piece of paper to cover motherboard contacts?
thanks in advance

20mark said:
hi,im struggling with enanche GPS signal too. just two questions..is it just aluminium foil ( http://upload.wikimedia.org/wikipedia/commons/1/12/Folie_2007.jpg ) or some other foil? and behind,is a piece of paper to cover motherboard contacts?
thanks in advance
Click to expand...
Click to collapse
Any conducting foil should be good enough if you ask me. But look at other threads - about resistance/lenght of the antenna etc. - this one is quite a guess, but should be better than not having antenna at all. By the way, if you have broken antenna (the cover), you could apply this patch to the cover leaving the spring contacts to do the resto fo the job.
And more... A new cover (antenna) on eBay is about 6 pounds? (10 euros?) - is it worth of making this by yourself when you can get a new cover?

19ninety said:
After having no GPS for about a year and getting annoyed with it not working I accidentally found a post about soldering wire to the contacts.
Well, rather than soldering I wondered if I could make a little tin foil antenna. Works a treat!! Pics below:
Click to expand...
Click to collapse
Could you please post the URL to that web? I'd like to know how to open that cover
Thanks

rickowsky said:
Could you please post the URL to that web? I'd like to know how to open that cover
Thanks
Click to expand...
Click to collapse
It's just round the corner:
http://forum.xda-developers.com/showthread.php?t=1318892
Sent from my HTC Desire HD using xda app-developers app

nice~ thanks.. :laugh:

Template
Is it possible that you could upload a folding and cutting template? Also, (and I believe it was mentioned a bit back) it appears that you have a piece of paper behind the foil to prevent accidental contact with the board other than on the antenna points. Would something like this also work on the other antenna points?

Nice idea .. but i am afraid of shorting motherboard contacts... Perhaps any more detail from you in the long run would be appreciated...
Also my spring contact broke as soon as i tried to pull it up. so may be soldering a wire would fix my GPS!!!

Tried this. It helped a little but couldnt get a good connection and as soon as i moved the phone it would go
probably try to soldier a wire onto it

zphantom1 said:
Is it possible that you could upload a folding and cutting template? Also, (and I believe it was mentioned a bit back) it appears that you have a piece of paper behind the foil to prevent accidental contact with the board other than on the antenna points. Would something like this also work on the other antenna points?
Click to expand...
Click to collapse
Damn, sorry I missed all the replies!!!
So to make the template I used a craft knife and a board and trial and error cut the paper until it fitted correctly, once I have that done I used that as a template to make the foil.
I used the paper to prevent the foil from touching the motherboard. Its just regular kitchen foil.
To remove the cover I CAREFULLY used a razor blade to lift the side of the cover closest to the camera, its very tight the first time you try and open it, once it been off a couple of times its really easy to do.
To update this methods results, I found it worked for a while but then I started having GRP issues again. I was going to solder a wire in the instead but was due a upgrade so ... HOX ftw.
Soldering a wire in there would be pretty easy using a fine tip on a gas soldering iron, may be a bit more fiddly with a regular fixed bit electric iron but certainly doable. This would be a better fix, though have a look on fleaBay, it may be worth trying a new GPS cover ... I'm certain the issue lies with a really ****ty connection between the motherboard pins and the antenna points on the back of the cover and nothing else.
Sorry again for the slow replies guys, I posted and set for notifications and then forgot about it, was only by chance I found the notifs in my spam folder.

19ninety said:
After having no GPS for about a year and getting annoyed with it not working I accidentally found a post about soldering wire to the contacts.
Well, rather than soldering I wondered if I could make a little tin foil antenna. Works a treat!! Pics below:
Click to expand...
Click to collapse
Really god work...

Thx... Going to try this.
Sent from DHD - Tapatalk

GPS FIX
If you flash the file attached to this reply it will fix your gps issues

If Im flashing it, some error occure and it is aborted.
Im doing something wrong.
Should I rename the file or something like it?
Thanks for reply.
Sent from DHD - Tapatalk

AndroidAdski said:
If you flash the file attached to this reply it will fix your gps issues
Click to expand...
Click to collapse
What does the zip do?
Sent from my GT-P1000 using xda app-developers app

this zip is probably from here:
http://forum.xda-developers.com/showthread.php?t=1044992
oh and it didn't fix my gps issue....neither did flashing the newest radio or using solder....

19ninety said:
After having no GPS for about a year and getting annoyed with it not working I accidentally found a post about soldering wire to the contacts.
Well, rather than soldering I wondered if I could make a little tin foil antenna. Works a treat!! Pics below:
Click to expand...
Click to collapse
EDIT: Please dont jump into conclusions too soon as I did! At first I thought tha this fix was working 100% but I then noticed that although I (at last) had a signal it was too weak compared to a 'healthy' gps receiver and the phone lost it as soon as i got in a moving car or changed direction.
I used tinfoil from my kitchen, plain printer paper, a pair of scissors and a cheap modeling knife. I used the 'trial and error' method just like you said and cut out the paper for insulation first. I trimmed holes for the two flash leds and the strange circular part right next to them.. I then cut the tin foil a tad larger than the papers area and I folded its edges all around to keep it from falling apart.
Congratulations for thinking so cleverly. Thank you for uploading and sharing this fix.
zphantom1 said:
Is it possible that you could upload a folding and cutting template? Also, (and I believe it was mentioned a bit back) it appears that you have a piece of paper behind the foil to prevent accidental contact with the board other than on the antenna points. Would something like this also work on the other antenna points?
Click to expand...
Click to collapse
With 19ninety's permission I could draft up a template for that and upload it later on.
With
mitmeister said:
Nice idea .. but i am afraid of shorting motherboard contacts... Perhaps any more detail from you in the long run would be appreciated...
Also my spring contact broke as soon as i tried to pull it up. so may be soldering a wire would fix my GPS!!!
Click to expand...
Click to collapse
EDIT: My spring contact also broke apart but it seems to have little on this fix. If the tinfoil has enough width then it should lie correctly on what remains of the broken spring on the main board. The problem is that after a few days the tinfoil looses some of its width due to continuous stress that we apply on the phone (while holding it or having it in our pockets) and thus loosing contact

mmessass said:
This gps fix WORKS 100%. I just tried it and i got instant gps fix using gps test app. I used tinfoil from my kitchen, plain printer paper, a pair of scissors and a cheap modeling knife. I used the 'trial and error' method just like you said and cut out the paper for insulation first. I trimmed holes for the two flash leds and the strange circular part right next to them.. I then cut the tin foil a tad larger than the papers area and I folded its edges all around to keep it from falling apart.
Congratulations for thinking so cleverly. Thank you for uploading and sharing this fix.
With 19ninety's permission I could draft up a template for that and upload it later on.
With
My spring contact also broke apart but it seems to have no affect on this fix. If the tinfoil has enough width then it should lie correctly on what remains of the broken spring on the main board.
Click to expand...
Click to collapse
Sure you may make a template if it helps anyone else who has this issue

G900F R1 / R2 antenna help, broke off R2

Hello people.
I was busy repairing S5 and by curiosity I removed the R2 port and there in one antenna was stuck, it popped off the motherboard and I cannot find it anymore.
Someone suggested (https://forum.xda-developers.com/showthread.php?t=1625663) to stick a small copper wire and to tape it down, would this work?
see picture...

There was nothing in the bigger connectors. Antennas are in other place.
Do you mean a small round grey plastic cover? Just forget it.
Or the whole connector is torn off?

bbsc said:
There was nothing in the bigger connectors. Antennas are in other place.
Do you mean a small round grey plastic cover? Just forget it.
Or the whole connector is torn off?
Click to expand...
Click to collapse
As seen in picture marked, the whole connector is torn off. In the link you can read that it's necessary for signal reception.

amakuramio said:
As seen in picture marked, the whole connector is torn off. In the link you can read that it's necessary for signal reception.
Click to expand...
Click to collapse
These two (bigger) connectors look like test-points or something.
I'm sure they are not necessary for signal reception.
But if you have a closer look at this place, you'll see a PCB track running under that torn off connector (please refer the image attached).
If this track is untouched, the phone will work as it should.
But if it's damaged, you'll have to repair it. It can be done with a thin copper wire and some soldering (no tape )

bbsc said:
These two (bigger) connectors look like test-points or something.
I'm sure they are not necessary for signal reception.
But if you have a closer look at this place, you'll see a PCB track running under that torn off connector (please refer the image attached).
If this track is untouched, the phone will work as it should.
But if it's damaged, you'll have to repair it. It can be done with a thin copper wire and some soldering (no tape )
Click to expand...
Click to collapse
only the r2 big connector popped off.
I hope that LTE will work otherwise my friend will be pissed off. haha.

amakuramio said:
only the r2 big connector popped off.
I hope that LTE will work otherwise my friend will be pissed off. haha.
Click to expand...
Click to collapse
I've looked at your problem once more.
I'm sorry, but it looks a little more complicated than it was before.
Please have a look at the pictures attached.
I don't know what variant of SGS5 you have, but you can probably see something like the image on one of the photos.
If so, you'll have to connect by soldering the points circled in red.
That's because the port or connector which was torn off worked like an electrical jumper between these points.
Good luck.

bbsc said:
I've looked at your problem once more.
I'm sorry, but it looks a little more complicated than it was before.
Please have a look at the pictures attached.
I don't know what variant of SGS5 you have, but you can probably see something like the image on one of the photos.
If so, you'll have to connect by soldering the points circled in red.
That's because the port or connector which was torn off worked like an electrical jumper between these points.
Good luck.
Click to expand...
Click to collapse
Thank you so much. I can use copper wires?
I don't have to connect the sides, just connect point a and b, right?

amakuramio said:
Thank you so much. I can use copper wires?
Click to expand...
Click to collapse
You can take a common stranded wire and take one thin solid copper wire from it.
You can solder it without problem because the green substance on the PCB is insulating coating, but the points which you need are free from this coating.
P.S. No, you don't need to connect sides - it's just "ground" and they are still connected.
Just connect two points circled in red - it's the signal line.

bbsc said:
You can take a common stranded wire and take one thin solid copper wire from it.
You can solder it without problem because the green substance on the PCB is insulating coating, but the points which you need are free from this coating.
Click to expand...
Click to collapse
Thank you so much! Tomorrow another friend (specialist in soldering) will come, and I will ask if he can help me with it ^_^ Just a very thin copper wire, it should be possible
I tested it broken like this and I notice the signal is very bad, 0-1 bar.

amakuramio said:
Thank you so much! Tomorrow another friend (specialist in soldering) will come, and I will ask if he can help me with it ^_^ Just a very thin copper wire, it should be possible
I tested it broken like this and I notice the signal is very bad, 0-1 bar.
Click to expand...
Click to collapse
You're welcome.
Let's see if it helps. I think it should.

Just to make the things more understandable.
1. Get a piece of conventional stranded wire (1).
2. Get a single thin conductor from it (2).
3. Solder in the jumper very carefully and get the result (3, 4, 5)
P.S. All photos were taken with Samsung Galaxy S5.

bbsc said:
Just to make the things more understandable.
1. Get a piece of conventional stranded wire (1).
2. Get a single thin conductor from it (2).
3. Solder in the jumper very carefully and get the result (3, 4, 5)
P.S. All photos were taken with Samsung Galaxy S5.
Click to expand...
Click to collapse
I've fixed an s5 via this method. It does work. There's all kinds of crazy things that fix issues but sound ridiculous. I fixed the motherboard of my ps3 by wrapping it in tinfoil and baking it. Seriously. It did a reflow of the solder.

godkingofcanada said:
I've fixed an s5 via this method. It does work. There's all kinds of crazy things that fix issues but sound ridiculous. I fixed the motherboard of my ps3 by wrapping it in tinfoil and baking it. Seriously. It did a reflow of the solder.
Click to expand...
Click to collapse
I tried it, but worsened the signal.... what could have gone wrong

bbsc said:
Just to make the things more understandable.
1. Get a piece of conventional stranded wire (1).
2. Get a single thin conductor from it (2).
3. Solder in the jumper very carefully and get the result (3, 4, 5)
P.S. All photos were taken with Samsung Galaxy S5.
Click to expand...
Click to collapse
sorry for the late reply -- I did the same but signal keeps dropping or is only 1 bar ...

amakuramio said:
I tried it, but worsened the signal.... what could have gone wrong
Click to expand...
Click to collapse
Do it properly, forget the tape. Actually solder the wire onto the two points. It will give much better contact

godkingofcanada said:
Do it properly, forget the tape. Actually solder the wire onto the two points. It will give much better contact
Click to expand...
Click to collapse
ended up buying a defective s5 from auction just for the motherboard....
the guy who soldered for me is on vacation...

amakuramio said:
ended up buying a defective s5 from auction just for the motherboard....
the guy who soldered for me is on vacation...
Click to expand...
Click to collapse
That will work too