where is the nfc chip? - Galaxy S 4 Q&A, Help & Troubleshooting

As above. Does anyone know where is that chip? Is it like the s3 where it located on the back cover?

Battery.

inside the battery

Related

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?
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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?
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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.
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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

Gold antenna behind cover?

Hi!
I noticed behind the cover on the phone, a gold thing.
What is that? Antenna? In case, what is the antenna for? External antenna for GSM/GRPS?
Strange
Thanks!
Do you mean the connector beside the battery?
Thats a connector for an external antenna, used in cars.
The funny thing is, that there's no battery cover with a hole for the antenna connector on the market, so you have to destroy your original one
Ah, thank you!
But, what antenna can I plug into it?
EDIT: are you sure?
it's just the antenna..not for car phone ariels.
I bet it has something to do with multi-touch... A secret switch probably!
I think ir's a door to another dimension
alankstiyo said:
I think ir's a door to another dimension
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Click to collapse
LooooooooooooooooooooooooooooooooooooooooL
nice 1

back cover copper cables??

Hi,
I've a problem with my ZTE Blade. Since there is very difficult to open the battery cover, each time I open it, y hurt my nails, so I do it with a plastic tool.
Today, I've realized that I've damaged a rubber tape in the rear part that has some copper cables inside.
I'd like to know if somebody knows what are this cable intended to. Is this the antenna? I haven't experienced any coverage loss.
I've seen a disassembly video in youtube, and this rear part seems not to have any kind of connector to the main board, but i'm not sure.
I'd also like to warn you about this. Please, be careful while opening the battery cover.
Photo of the problem
I think that's the antenna. Has your call quality/ reception altered at all? If not, I wouldn't worry too much

Nexus 7 Cover backing - Is it replaceable?

I was looking at the back cover of the Nexus 7 while it was dismantled when I attempted to fix the screen tearing issues, I was wondering how easy those would be to replace?
Isn't the NFC embedded into the cover as well as the chip on the controller board? Or am I completely off base?
Does anyone know if it is possible to just buy the covers themselves?
You would have to purchase a replacement part. Doubt there would be 3rd party ones since there are all the antennas in it. The chip for the NFC is in the unit, but the antenna is in the cover.
Where would I be able to find a replacement part? Because I was wanting to try to make it my own, but I would have a hard time believe google (or asus for that matter) would sell me an individual back cover.
(As a noob, I am unable to post proper links. Sorry.)
The only place I have found that has individual parts is powerbookmedic.com, they have backs for $30US.
They actually have all of the parts you could possibly need (near as I can tell, from the sites that did teardowns). Building a whole 8GB Nexus would cost $440US though.

Cannot find NFC Coil replacement part on the market

I was fixing my N6p battery cover, by my bad luck i damaged the nfc coil.
Now it is dead, and looking for a new one, I seem not to be able to find it anywhere.
Even with the full battery cover. Does anybody replaced their coil?
billias said:
I was fixing my N6p battery cover, by my bad luck i damaged the nfc coil.
Now it is dead, and looking for a new one, I seem not to be able to find it anywhere.
Even with the full battery cover. Does anybody replaced their coil?
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The replacement covers on parts4repair.com (China) show the NFC sticker with the cover. I'd verify that with them before ordering though.
Edit- Just noticed that only the graphite cover shows the NFC sticker pictured. Weird.
https://www.parts4repair.com/huawei-nexus-6p/
Leys see their reply, if they do so.
But only Graphite has the sticked nfc coil. Pity a part lile this is nowhere in the market.
hawkswind1 said:
The replacement covers on parts4repair.com (China) show the NFC sticker with the cover. I'd verify that with them before ordering though.
Edit- Just noticed that only the graphite cover shows the NFC sticker pictured. Weird.
https://www.parts4repair.com/huawei-nexus-6p/
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They said, the Graphite one comes with NFC coil, ordered, waiting, will confirm upon arrival.
NFC Coil is not coming with this backcover, the photo is "wrong" as the factory doesn't produce it with coil anymore.
That was their final answer
So I am now stuck with a dead NFC Coil.
Anybody ever looked for this? maybe if I find a service point of Huawei, will be able to find the part? (suggestions?)
What I did, is to use the heat gun to remove the NFC antenna from the old cover, and paste it into the new one.
I was disappointed to see that the back cover wasn't complete just before putting it. (I was trying to fix the power button. So I had 2 options, swap the power buttons or swap the nfc antenna and use the new shining back cover, I chose the second option and worked great so far.... I'm not an NFC user but I will start using Android Pay in a few weeks maybe...so I put one travel card and got some info like "mirafare app" blablabla so NFC seems to be working after the movement. ).
Yeah, let me know if anyone finds the NFC replacement. I had to reuse the old one and I didn't do a good job of removing it. Still works but my OCD kicks in just thinking about what's on the other side of the cover.
Sent from my Nexus 6P using Tapatalk
armyav8tor said:
Yeah, let me know if anyone finds the NFC replacement. I had to reuse the old one and I didn't do a good job of removing it. Still works but my OCD kicks in just thinking about what's on the other side of the cover.
Sent from my Nexus 6P using Tapatalk
Click to expand...
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I purchased this rear housing http://www.ebay.com/itm/172144241461
It came with the NFC chip already attached. I was pretty happy, it took me forever to find one.
Sent from my Nexus 6P using Tapatalk
https://www.ebay.co.uk/itm/For-Huawei-Nexus-6P-Replacement-NFC-Antenna-OEM-/152742208054
https://www.aliexpress.com/item/-/32797220581.html
Sent from my crosshatch using XDA Labs

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