s4 nfc is located where? - Galaxy S 4 Q&A, Help & Troubleshooting

Hi all
The note2 nfc located at battery cover. S3 at battery
Anyone knows s4 nfc is located where?
Thx

It's built into the battery just like the S3 as far as I know, so it's on the back.

jay2the1 said:
It's built into the battery just like the S3 as far as I know, so it's on the back.
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Click to collapse
+1 on that

jay2the1 said:
It's built into the battery just like the S3 as far as I know, so it's on the back.
Click to expand...
Click to collapse
Not on the battery cover?

tanwt said:
Not on the battery cover?
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Click to collapse
No, it's in the battery itself.

darrendm said:
No, it's in the battery itself.
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Click to collapse
Thx for the info
I want to ask 1 more question. I had an oem s3 battery with reported nfc ready
But it can't do nfc function such as s beam
I thought I got conned but when I open the battery sticker I saw the nfc antenna on it
So my question is. Why in this s3 battery case, the nfc can't work?

Have you turns nfc on? It's much like Bluetooth you need to tun it on on both devices before it can be used.

Usually the NFC chips are located within the phones themselves. The antenna for the NFC is located in the battery.

tanwt said:
Thx for the info
I want to ask 1 more question. I had an oem s3 battery with reported nfc ready
But it can't do nfc function such as s beam
I thought I got conned but when I open the battery sticker I saw the nfc antenna on it
So my question is. Why in this s3 battery case, the nfc can't work?
Click to expand...
Click to collapse
If the battery case you are trying is metal then I believe it will block the NFC signal from getting through.

darrendm said:
If the battery case you are trying is metal then I believe it will block the NFC signal from getting through.
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Click to collapse
The battery cover is stock
It is possible the nfc antenna in my s3 case facing the phone instead of facing the battery cover?

sunshine Good NFC Antenna
As far as I have known, only when NFC antenna are used in the back of the mobile can they provide outstanding performance. Therefore, the NFC antenna must be somewhere in the back of your mobiles. Thing has two contact pads, it is likely to be NFC antenna. Of course, if you can't find any plots, the antenna gets big chance to be integrated with the battery.

Related

Possible solution to GPS problem on Nexus S

Hi,
i've tried just about anything to improve GPS singal on my Nexus S, i was so desperate i even thinked about selling it. But by accident i've found something interesting.
When you remove battery cover signal from GPS is really good, usable even indoors 1-2 meters from window. When you put cover back - it suddenly drops. Here's the best part - when i use different cover directly on the back of the phone, WITHOUT original battery cover (i have thick back case which you put on battery cover, anti scratch thing) signal was just as fine as without any cover!
Then i tried covering back of the phone with a case from another phone (Galaxy S) and signal was fine.
So the culprit is NFC spiral which is sticked to the battery cover. I'd like to take it off, but im not sure if it is possible to stcik it back in case of RMA or something.
I'd like you to try this simple experiment and tell me if your phones suffer from the same thing.
Thanks
hmm interesting
Lol wow with cover on I get 2-3 .. without cover 3-4.5 ... lol
Sent from my Nexus S using xda premium
YourMainDude said:
Lol wow with cover on I get 2-3 .. without cover 3-4.5 ... lol
Sent from my Nexus S using xda premium
Click to expand...
Click to collapse
What about turning NFC off?
Today i took off NFC antenna and it didn't work, which is strange. Now the culprit is whole battery cover. As i said i tried different cases and GPS was working fine with them.
Hello,
in our german community we discuss this problem, too. The Problem isn't the NFC antenna, it's the backcover! Some user tried with another cover from ebay: http://www.ebay.de/itm/250846706756?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 and this seems to work better!
Here is a link to the original thread (in german!) http://www.android-hilfe.de/nexus-s-forum/98979-probleme-mit-gps-fix-ab-2-3-4-a-19.html#post2080524
Best regards
Handymeister
Handymeister said:
Hello,
in our german community we discuss this problem, too. The Problem isn't the NFC antenna, it's the backcover! Some user tried with another cover from ebay: http://www.ebay.de/itm/250846706756?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 and this seems to work better!
Here is a link to the original thread (in german!) http://www.android-hilfe.de/nexus-s-forum/98979-probleme-mit-gps-fix-ab-2-3-4-a-19.html#post2080524
Best regards
Handymeister
Click to expand...
Click to collapse
Yup, that exactly what i considered. It's really funny, because original battery cover is making GPS works like s**t.
If that cover form ebay is really working i might consider buying it, i'll try to read original thread, thanks.
Have you tried that cover? My German isn't that great and neither is google translate. But from what i read this is really working, but i don't know how well.
im guessing NFC wont work without the stock battery cover
when did this GPS problem started?
it must be new...
uberberben said:
Hi,
i've tried just about anything to improve GPS singal on my Nexus S, i was so desperate i even thinked about selling it. But by accident i've found something interesting.
When you remove battery cover signal from GPS is really good, usable even indoors 1-2 meters from window. When you put cover back - it suddenly drops. Here's the best part - when i use different cover directly on the back of the phone, WITHOUT original battery cover (i have thick back case which you put on battery cover, anti scratch thing) signal was just as fine as without any cover!
Then i tried covering back of the phone with a case from another phone (Galaxy S) and signal was fine.
So the culprit is NFC spiral which is sticked to the battery cover. I'd like to take it off, but im not sure if it is possible to stcik it back in case of RMA or something.
I'd like you to try this simple experiment and tell me if your phones suffer from the same thing.
Thanks
Click to expand...
Click to collapse
praveenmarkandu said:
im guessing NFC wont work without the stock battery cover
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Click to collapse
it will not work without the original back cover
that is the antennae
uberberben said:
Today i took off NFC antenna and it didn't work, which is strange. Now the culprit is whole battery cover. As i said i tried different cases and GPS was working fine with them.
Click to expand...
Click to collapse
Hehe. Put your NFC antenna back on. Google wallet is awesome.
Hey guys
I have my Nexus S (Blandroid + Trinity T144) tested just now, and now I only realize the GPS unit is on the right side of the phone.
Take off your cover, you should see a black, duct-tape like module pasted on almost 3/4 of the right side of Nexus S (the side where power button is located). That should be the GPS unit.
Tested with cover on, landscape with right side of the phone pointed upwards, I gained a score of 40~41 in one or two of the satellite in my view (GPS Test by Chartcross Ltd). When I test it with cover off, I gained a score of 45~47 in a few of the satellite.
Conclusion is, if you need a better GPS signal, you will need to hold it landscape with camera pointing to the left. Portrait mode will not works too well I guess. I wonder how Apple products can gain locks near instantly.
that's what i always do when i want to use GPS for navigation, pull off the battery cover.
it's almost impossible to get a fix with the battery cover on.
Humm I really wanted to delete this post but there isn't an option
Wow, i tried to get gps fix in my home without cover and it work!

Nfc not working with flip cover ??????

NFC TAGS NOT WORKING WITH S FLIP COVER ( SEE THE DIFFERENCE BETWEEN ORIGINAL BACK COVER & FLIP COVER )
typed with XDA HD ON GS4
foolmonty said:
NFC TAGS NOT WORKING WITH S FLIP COVER ( SEE THE DIFFERENCE BETWEEN ORIGINAL BACK COVER & FLIP COVER )
typed with XDA HD ON GS4
Click to expand...
Click to collapse
Are you sure you bought a compatible flip cover for your variant?
foolmonty said:
NFC TAGS NOT WORKING WITH S FLIP COVER ( SEE THE DIFFERENCE BETWEEN ORIGINAL BACK COVER & FLIP COVER )
typed with XDA HD ON GS4
Click to expand...
Click to collapse
The NFC component (antenna) is not in the back cover. It's in the battery. The flip cover should make no difference in NFC operation.
There is probably a confounding factor here, or possibly a bug. My bet is that the PEBKAC.
Shammyh said:
The NFC component (antenna) is not in the back cover. It's in the battery. The flip cover should make no difference in NFC operation.
There is probably a confounding factor here, or possibly a bug. My bet is that the PEBKAC.
Click to expand...
Click to collapse
haha
Love that acronym
0ri0n said:
haha
Love that acronym
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Click to collapse
Oldie, but a goodie.
And as someone who works in IT... it's quite relevant on a daily basis.
Shammyh said:
Oldie, but a goodie.
And as someone who works in IT... it's quite relevant on a daily basis.
Click to expand...
Click to collapse
Agreed. IT here as well... ironically in the Boston area.
back on topic: OP, what have you tried doing that doesnt work?
foolmonty said:
NFC TAGS NOT WORKING WITH S FLIP COVER ( SEE THE DIFFERENCE BETWEEN ORIGINAL BACK COVER & FLIP COVER )
typed with XDA HD ON GS4
Click to expand...
Click to collapse
Similar problem as well, except that I brought a wireless charger, the supplied back cover works great with the wireless charging and NFC, but I really wanted a flip cover, I've first got a Momax flip view and brought a QI/NFC receiver that goes inside the cover, QI charging works great, but no NFC, brought a WiQi flip view cover with it built in, same problem, no NFC, just went and brought a Samsung S4 with both built in, still no NFC, put the Samsung supplied wireless charging cover on and it works.....go figure?

[Q] battery , NFC

Hi all.
Bare with me, a worried friend of mine apparently seen some YouTube video that discussed privacy issues.
He went ahead and peeled out a piece of electronics from his Note 4 battery, that to me looks like it could be part of/or the NFC sensor in whole.
Does anyone here know whether that is the NFC sensor or part of it? Or else what is it?
Thanks
MobiDroidâ„¢ said:
Hi all.
Bare with me, a worried friend of mine apparently seen some YouTube video that discussed privacy issues.
He went ahead and peeled out a piece of electronics from his Note 4 battery, that to me looks like it could be part of/or the NFC sensor in whole.
Does anyone here know whether that is the NFC sensor or part of it? Or else what is it?
Thanks
Click to expand...
Click to collapse
Of course its for NFC to work. If ur friend concern about privacy. Just turn the NFC off. If he/she still concern if apps do over ride that. Just. Remove the nfc permissions SYSTEMWIDE. so no app can see if ur device have nfc
Yeah OK! Thought so ))
Thanks for confirming ?

battery drainage I9505

Hello guys. I'm a not so happy owner of a i9505. Bought it secondhand, today from some guy on Facebook.
It's battery is in perfect conditions, the phone itself is fine. But the battery duration is... weird.
It drains 3% each 5 minutes, with the screen off. I don't even have Sim or SD card in. And I have wiped it the minute I got it.
I'm on stock lollipop.
See the screens ples.
Can someone help me?
Ty!
Just because the battery looks good doesn't mean it is good.
But if you look at the awake and screen on sections, you can see that they don't correspond.
The phone is awake when the screen is on. That's good.
But if the phone is awake when the screen is off, that's bad.
Pwnycorn said:
The phone is awake when the screen is on. That's good.
But if the phone is awake when the screen is off, that's bad.
Click to expand...
Click to collapse
Ty for the response! But how can I know if that is happening? And how can I fix it?
But even with screen on it drain to fast. In five minutes writing this, 4% is gone. And I still don't have Sim or SD cards.
Ty
liborio99 said:
Ty for the response! But how can I know if that is happening? And how can I fix it?
But even with screen on it drain to fast. In five minutes writing this, 4% is gone. And I still don't have Sim or SD cards.
Ty
Click to expand...
Click to collapse
I already told you that your battery may be the problem.
liborio99 said:
Ty for the response! But how can I know if that is happening? And how can I fix it?
But even with screen on it drain to fast. In five minutes writing this, 4% is gone. And I still don't have Sim or SD cards.
Ty
Click to expand...
Click to collapse
Probably a counterfeit fake battery with a faked Sammy sticker.
A quick way to know if you have at least an original battery is peeling off the silver sticker on it, if you see a strange black sticker (NFC antenna) underneath the one you peeled and the contacts of the lithium cell is in both side of the metallic casing.
CH1N3S3_N00B said:
Probably a counterfeit fake battery with a faked Sammy sticker.
A quick way to know if you have at least an original battery is peeling off the silver sticker on it, if you see a strange black sticker (NFC antenna) underneath the one you peeled and the contacts of the lithium cell is in both side of the metallic casing.
Click to expand...
Click to collapse
Wow. Totally gonna try it as soon as I get home. Ty!
You don't have to peel off anything. If you have another NFC device, then try using NFC to transfer a photo or something. Fake batteries usually don't have an NFC antenna, so the NFC file transfer will probably not work if it's a fake battery.
Pwnycorn said:
You don't have to peel off anything. If you have another NFC device, then try using NFC to transfer a photo or something. Fake batteries usually don't have an NFC antenna, so the NFC file transfer will probably not work if it's a fake battery.
Click to expand...
Click to collapse
But if he doesn't have another NFC enabled device at hand?
Besides he is not updating this thread... xD

Smart Pay stopped working

Hi All,
Just wondering if the inability to use smart pay on my Pixel 4 coincided with the swollen battery and its subsequent replacement. Has any one else experienced this and/or have a fix for it? Using smart pay or Google Wallet hasn't worked for about 2 years and it just dawned on me that this was about the time I replaced my battery. There is only one ribbon connector on the battery that I recall, and I know this was installed right. The phone has been working fine, other than no ability to use my phone to make smart payments any more. It used to work just fine on this same phone once upon a time. It is definitely not an issue with my bank(s) or cards, and Google support has no answers. The prerequisites for enabling Google Wallet and setting up tap to pay show checks across the board. Any assistance would really be appreciated! Many thanks in advance
Des
defyanse said:
Hi All,
Just wondering if the inability to use smart pay on my Pixel 4 coincided with the swollen battery and its subsequent replacement. Has any one else experienced this and/or have a fix for it? Using smart pay or Google Wallet hasn't worked for about 2 years and it just dawned on me that this was about the time I replaced my battery. There is only one ribbon connector on the battery that I recall, and I know this was installed right. The phone has been working fine, other than no ability to use my phone to make smart payments any more. It used to work just fine on this same phone once upon a time. It is definitely not an issue with my bank(s) or cards, and Google support has no answers. The prerequisites for enabling Google Wallet and setting up tap to pay show checks across the board. Any assistance would really be appreciated! Many thanks in advance
Des
Click to expand...
Click to collapse
Can you provide more details? Does Wallet specifically say you can't use tap to pay, or do you mean NFC readers don't read your phone?
It's entirely possible that a swollen battery could damage or break the connections of the NFC coil antenna in the rear cover.
V0latyle said:
Can you provide more details? Does Wallet specifically say you can't use tap to pay, or do you mean NFC readers don't read your phone?
It's entirely possible that a swollen battery could damage or break the connections of the NFC coil antenna in the rear cover.
Click to expand...
Click to collapse
I'm not sure about any other NFC capability. I don't use this function typically except for Google Pay, when that worked. There are no error msgs or any kind of response from the phone at all. It simply doesn't read or respond to any smart pay terminal. The defective battery was swollen enough to lift the cover off the phone. I simply gently peeled the cover off and replaced that battery with a new one. I didn't notice any kind of device, coil or connection on the cover, but then I wasn't looking for one either. I simply replaced the cover, same adhesive and all right back over the new battery.
defyanse said:
I'm not sure about any other NFC capability. I don't use this function typically except for Google Pay, when that worked. There are no error msgs or any kind of response from the phone at all. It simply doesn't read or respond to any smart pay terminal. The defective battery was swollen enough to lift the cover off the phone. I simply gently peeled the cover off and replaced that battery with a new one. I didn't notice any kind of device, coil or connection on the cover, but then I wasn't looking for one either. I simply replaced the cover, same adhesive and all right back over the new battery.
Click to expand...
Click to collapse
Yeah, I bet the NFC antenna is borked.
V0latyle said:
Yeah, I bet the NFC antenna is borked.
Click to expand...
Click to collapse
lol. Ok. I'm sure I could pry the battery cover off easy enough, but is a 'borked' antenna repairable? Do love that term new addition to my lexicon.
defyanse said:
lol. Ok. I'm sure I could pry the battery cover off easy enough, but is a 'borked' antenna repairable? Do love that term new addition to my lexicon.
Click to expand...
Click to collapse
You can blame my wife, she likes to use weird terms like "motorpickle", "hecalopter", etc
Most likely not repairable, you'll have to replace it. I think it's integral with the rear cover.
V0latyle said:
You can blame my wife, she likes to use weird terms like "motorpickle", "hecalopter", etc
Most likely not repairable, you'll have to replace it. I think it's integral with the rear cover.
Click to expand...
Click to collapse
Hahaha. Well borked takes the prize in my book. So you reckon a new cover then, not a new battery. I'll seek one out and code this as 'mission unbork'.
Thanks a bunch for your feedback!

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