Database Users

Inductive charging / wireless charging?

Hi all does the note 2 support inductive charging or do you have to replace the back? Its just I notice there is something in the back cover and i hear this is NFC for payments I was just wondering if it was also capable of inductive charging out of the box or if it has to be adapted in some way.
Sent from my GT-N7100 using xda app-developers app

Well it has the wireless chargimg tabs under the back cover like the s3 so im going to say yes
Sent from my GT-N7100 using xda premium

If it does support this, I wonder why Samsung hasn't mentioned it in their presentations or included it within the official specs? Hope it is possible though.

dosher said:
If it does support this, I wonder why Samsung hasn't mentioned it in their presentations or included it within the official specs? Hope it is possible though.
Click to expand...
Click to collapse
im going to guess that there having troubles as the s3 wireless kit was supposed to be september and is as of yet a no show

I bet a palm pre inductive coil will fit under the battery cover :thumbup:
Sent from my Galaxy Nexus using Tapatalk 2

Soo... here is a picture of the back... and yeah... i also think they have at least integrated the connectors for wireless charging into my note 2 xD
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Out of the box it does not support wireless charging. I suspect it could be modified to use a Palm inductive charger though. I've been messing with my Note 2 and a Palm Pre inductive charger for the last half hour or so. The PCB of the Pre back cover fits into the little groove next to the micro SD slot (I had to cut a small part of the PCB off - see the red circle in the last image) and the coil/magnet cluster fits very easily between the back cover and the battery. Visually/tactilely it's pretty much impossible to detect when they've been put in there.
Unfortunately, I've never modded a device to use inductive charging before so I'm a little hesitant to proceed.

wow... that looks very good ...
Hmmm but without a technical background I would not risk that... you have at least to measure all that stuff ...
(sorry for being no help)...
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Hirudin said:
Out of the box it does not support wireless charging. I suspect it could be modified to use a Palm inductive charger though. I've been messing with my Note 2 and a Palm Pre inductive charger for the last half hour or so. The PCB of the Pre back cover fits into the little groove next to the micro SD slot (I had to cut a small part of the PCB off - see the red circle in the last image) and the coil/magnet cluster fits very easily between the back cover and the battery. Visually/tactilely it's pretty much impossible to detect when they've been put in there.
Unfortunately, I've never modded a device to use inductive charging before so I'm a little hesitant to proceed.
Click to expand...
Click to collapse
i would rather not to do it, i think note 2 is the ame as Galaxy s3, they have the capability you just need to wait for the battery cover replacement sold. or you can take buy one fro S3 and rip out whatever in that back cover (coil) put it in your note 2 back cover. http://www.androidauthority.com/wir...samsung-galaxy-s3-hits-verizon-stores-105433/
Its all just my theory though.... for me better just wait rather risking my gorgeous note 2 which is note yet in my hand right now....

Hello guys,
Former Palmer/webOS user here. Actually, toying with the inductive back of Palm Pre & Touchstone charger, is not that risky nor difficult, not at all. I've tested it as a kind of proof of concept, with my SGS 2 - just put the coils/PCB assembly at the back of phone cover, and soldered two wires to the coils's output contacts. These two wires, I just ran to the micro USB plug. When I've connected that plug to the phone's micro USB port and put the phone on the Touchstone charger, it starts charging - that's all. Coil's integrated PCB sorts out things like converting AC/induction back to DC, 5V etc. What you are getting out of it, is your pure, standard, USB-compatible juice.
The only reason why I wasn't using it permanently, was that I didn't wan't to solder anything on my SGS 2's PCB (didn't feel like it is a smart idea, with it's tiny tracks and my soldering skills - or rather the lack of thereof). And having micro USB plug stuck in phone's bottom all the time, didn't appeal to me, somehow
But if the SGS3/Note2 already had the required contacts behind it's back cover, it will be a breeze DIY project. And one damn handy and cool-loking charger on your desk, believe me.
I'll try to post some photos of my POC setup later on.
Best regards!

Search first....
http://forum.xda-developers.com/showthread.php?t=1951493
Sent from my GT-N7100 using Tapatalk 2

I purchased a couple of kits - one was just the inductive charging module for the phone, which I installed and separately picked up a couple of charging bases; the other one was a complete kit.
This kit (not by this seller, but the photo is the same as the kit I purchased) is very elegant, thin, and easy to install. You can barely see the bulge in the back of the case. The only problem I have is that the magnets seem to be slightly too weak so the position is a bit inexact. I've added a couple of extra magnets but will end up replacing the originals with my slightly-stronger replacements in the end I suspect. Overall this kit, although expensive on Ebay does the job and looks good.
This charging module was easy to install but the one I received had the polarity of the charging pins reversed so I had to make a modification to get it working. Here is a post of my preliminary mod to get it working; since that post I've done some clean-up but the one linked above thinner so I'm using it as my primary right now.

Maybe this help!!!
dhgate.c o m

Any one know is this base will work
http://www.ebay.com/itm/HP-TOUCHSTO...ocking_Stations_Keyboards&hash=item43b759a9c9
or does it have to be the other?

raiu said:
Any one know is this base will work
http://www.ebay.com/itm/HP-TOUCHSTO...ocking_Stations_Keyboards&hash=item43b759a9c9
or does it have to be the other?
Click to expand...
Click to collapse
It will work but that's too expensive.
Sent from my GT-N7100 using xda premium

Wireless charging!

hey guys,
So i noticed 2 extra pins under the battery cover of my GN2 today! i looks like they are for wireless charging similar to what Samsung promised for the gs3. I don't really feel like waiting for the official wireless charging kit from Samsung so I'm going to attempt to make my own wireless charging back! I've seen videos like this before so i know it can be done! i have got the old inductive charger and back from my ancient palm pre so I'm going to give it a shot! just thought id spark up a bit of conversation about the topic and maybe learn a bit from some people who may already have done something similar!
I apologize in for the terrible grammar
thanks !

Isn't that for NFC? My original note had those and they matched up with the contact points on the battery cover and its nfc chip

imitenotbecrazy said:
Isn't that for NFC? My original note had those and they matched up with the contact points on the battery cover and its nfc chip
Click to expand...
Click to collapse
As you can see in his pic the Note 2 has two sets of pins... One set (the upper pins) is for the NFC that lines up with the battery cover and the other set (next to the battery) is "most likely" for wireless charging because I did my own mod for the S3 and it works perfect but until someone does it we don't know for sure??

that's NFC

guitarz said:
that's NFC
Click to expand...
Click to collapse
Just got it working! OMG this is sweet! haha tested it with some spare wires and it regonized that it was being charged wirelessly! now i just gotta make it look pretty and install it in the back panel of the phone! woo!

tomdroid3 said:
Just got it working! OMG this is sweet! haha tested it with some spare wires and it regonized that it was being charged wirelessly! now i just gotta make it look pretty and install it in the back panel of the phone! woo!
Click to expand...
Click to collapse
You do realize that we need pictures on that.

imitenotbecrazy said:
Isn't that for NFC? My original note had those and they matched up with the contact points on the battery cover and its nfc chip
Click to expand...
Click to collapse
nope thats just the top pins! the bottom ones next to the battery are for wireless charging i just got it working too!

Vulpix said:
You do realize that we need pictures on that.
Click to expand...
Click to collapse
hahaha well of course!! I'm documenting the whole procedure!

got some photos!!!

why didnt they advertise this anywhere

That is awesome....So how much would it cost if they were to sell a new back cover made for wireless charging?

cleankutazn said:
That is awesome....So how much would it cost if they were to sell a new back cover made for wireless charging?
Click to expand...
Click to collapse
The whole mod cost me $18.00 on my S3 so that's how much it costs for everything... It's real simple too! I KNEW those bottom pins were for charging but some people just kept saying both sets of pins were for NFC which would be WRONG.... :highfive: Follow this thread and you can get all the stuff on Amazon... You will probably need some of the stronger magnets though which are another $10.00 for 100 of them on Ebay...
LINKY:http://forum.xda-developers.com/showthread.php?t=1877191 Thanks guys for getting to this!!

can anyone clarify:
which pin is + and -
what is the max current (at 5 volts?)
and other than getting the correct voltage, is there anything else that a wireless charging back-plate would need to do? (I am thinking of making a simple one with a LM7805 + a diode and a coil)

I'm waiting for the official Samsung one. I hope it does 2A wireless charging ! hehe.

slapshot136 said:
can anyone clarify:
which pin is + and -
what is the max current (at 5 volts?)
and other than getting the correct voltage, is there anything else that a wireless charging back-plate would need to do? (I am thinking of making a simple one with a LM7805 + a diode and a coil)
Click to expand...
Click to collapse
magnetic fields only induce current when the field changes(think transformer). It's AC not DC.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app

How long does it take to fully charge the phone? Because the palm's wireless charging module's output current is far lower than the samsung one as far as i knows.

It's limited in the kernel to .5A, optimally 6.2 hours.

xartic12 said:
It's limited in the kernel to .5A, optimally 6.2 hours.
Click to expand...
Click to collapse
What current? I thought current referred to electrons flowing down a wire. It is wire less.
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PaulF8080 said:
What current? I thought current referred to electrons flowing down a wire. It is wire less.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Click to expand...
Click to collapse
Mate. Wiki how a transformer works. Its basically 2 coils set next to each other. The coil in the dock has current flowing through it and this creates a magnetic field. This local magnetic field pushes the electrons around in the coil we have put in the back of our phones and tadaaa! Current. Electrmagnetism into Electromagnetic induction. So we dont want more than 0.5A in the case coil.
By the way see http://forum.xda-developers.com/showthread.php?t=1951493 for 2 common solutions to the mod (soldered and non-soldered) my non-soldered solution works a treat.

marc.tulley said:
Mate. Wiki how a transformer works. Its basically 2 coils set next to each other. The coil in the dock has current flowing through it and this creates a magnetic field. This local magnetic field pushes the electrons around in the coil we have put in the back of our phones and tadaaa! Current. Electrmagnetism into Electromagnetic induction. So we dont want more than 0.5A in the case coil.
Click to expand...
Click to collapse
Dude, I am an electrical engineer. It's more complicated than that. Only changing magnetic fields generate electric fields that induce current in a wire. The current is AC. 0.5A makes no sense, to me.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app

USB flap... Annoying to open

I tend to charge my phones in the car a lot, and as I use a car dock app I put the phone on charge mist journeys.
Thinking of getting the s5.... How much of a PITA is it to keep opening or closing the flap when charging?
Ta
Sent from my iPad using Tapatalk (how ironic is that eh)

Tomo1971 said:
I tend to charge my phones in the car a lot, and as I use a car dock app I put the phone on charge mist journeys.
Thinking of getting the s5.... How much of a PITA is it to keep opening or closing the flap when charging?
Ta
Sent from my iPad using Tapatalk (how ironic is that eh)
Click to expand...
Click to collapse
its annoying if you keep your nails short
a wireless s-view charging case and pad solved that issue for me

I don't find it annoying at all, I also charge it in the car often, although you'll also find that the battery life is amazing, so I charge it a lot less than any other android I've ever had.
Sent from my SM-G900W8 using Tapatalk

bradthemarsh said:
I don't find it annoying at all, I also charge it in the car often, although you'll also find that the battery life is amazing, so I charge it a lot less than any other android I've ever had.
Sent from my SM-G900W8 using Tapatalk
Click to expand...
Click to collapse
Thats good to know.
I use a iBolt car dock which Ive had for Note 2, S4 and now Note 3. Thinking of going to the S5 but am worried that the flap will either get annoying or get broken off!
Shame there is no real car qi charge option available as yet

Tomo1971 said:
Thats good to know.
Shame there is no real car qi charge option available as yet
Click to expand...
Click to collapse
There are a few out there google "qi car mount" I found a few some on Ebay/Amazon and a few from other retailers

I removed the flap for good and i dont think it looks that bad.
You can easily remove it by unscrewing a plastic block and then you can safe-keep the flap if you need resell the phone.

MasK said:
I removed the flap for good and i dont think it looks that bad.
You can easily remove it by unscrewing a plastic block and then you can safe-keep the flap if you need resell the phone.
Click to expand...
Click to collapse
If take the flap away, it will lose the waterproof function.
---------- Post added at 10:59 AM ---------- Previous post was at 10:52 AM ----------
Tomo1971 said:
Thats good to know.
I use a iBolt car dock which Ive had for Note 2, S4 and now Note 3. Thinking of going to the S5 but am worried that the flap will either get annoying or get broken off!
Shame there is no real car qi charge option available as yet
Click to expand...
Click to collapse
It is a defective design. You can buy a replacement if it is broken off.

Thomasba said:
There are a few out there google "qi car mount" I found a few some on Ebay/Amazon and a few from other retailers
Click to expand...
Click to collapse
the problem with the wireless charge is the rate of charge is way too slow still.... it's good if you have it in a place were you'll leave the phone for a long time.....
the usb flap does suck but is the price you have to pay to get a good seal...
best regards,
Chale

Chaleman said:
the problem with the wireless charge is the rate of charge is way too slow still.... it's good if you have it in a place were you'll leave the phone for a long time.....
the usb flap does suck but is the price you have to pay to get a good seal...
best regards,
Chale
Click to expand...
Click to collapse
I can't comment on the speed of in car wireless chargers as I don't have one but the wireless charger I have at home isn't that slow at all, arguably if it's in a car then it will be on charge for the duration of the journey and so the time it takes to charge becomes slightly irrelevant.
Also charge time is dependant upon the current that the receiver can draw and the current that the base can deliver.The Base and receiver combination I have can work at about 800mA and so once you take a bit off for the inefficiency of wireless charging then they're not that much slower than a mains charger. if the 5V supply from your car charger can only deliver 500mA then yup it's gonna take a while It pays to look closely into the specs of these things before parting with your hard earned as cheap usually means just that.....sorry gone off topic

Thomasba said:
I can't comment on the speed of in car wireless chargers as I don't have one but the wireless charger I have at home isn't that slow at all, arguably if it's in a car then it will be on charge for the duration of the journey and so the time it takes to charge becomes slightly irrelevant.
Also charge time is dependant upon the current that the receiver can draw and the current that the base can deliver.The Base and receiver combination I have can work at about 800mA and so once you take a bit off for the inefficiency of wireless charging then they're not that much slower than a mains charger. if the 5V supply from your car charger can only deliver 500mA then yup it's gonna take a while It pays to look closely into the specs of these things before parting with your hard earned as cheap usually means just that.....sorry gone off topic
Click to expand...
Click to collapse
800mA charging versus 1.8mA charging is quite a difference, so yes, even at home, wireless charging is slow
and even slower in the car

eyecon82 said:
800mA charging versus 1.8mA charging is quite a difference, so yes, even at home, wireless charging is slow
and even slower in the car
Click to expand...
Click to collapse
I guess I'm just not in that much of a rush to charge my phone then

I went into my carriers store yesterday to look at the s5 and xperia z2. Came out with the z2. That darn flap would annoy me to buggery.
The z2 has the magnetic port on the left side which makes it slightly better.
Not wishing to troll, I've always been a Samsung fan since the Note2 and have upgraded to the s4 and then most recently the note 3 but the s5 didn't stand out for me.
Ok the z2 hasn't got all the features of the s4 or s5 but most of which I never used anyway, and those I did I used rarely.
Maybe in 6 months I'll go back to the Note when the 4 is released lol
Sent from my D6503 using Tapatalk

Tomo1971 said:
The z2 has the magnetic port on the left side which makes it slightly better.
Sent from my D6503 using Tapatalk
Click to expand...
Click to collapse
Would have been the perfect solution on the S5 but then cRapple would have probably said they invented that as well!

Thomasba said:
Would have been the perfect solution on the S5 but then cRapple would have probably said they invented that as well!
Click to expand...
Click to collapse
Haha.
Wouldnt it be nice if we could take the best bits of several phones and amalgamate them together to make the perfect phone.
There is no perfect for everyone phone out there.
I change phones every few months now, so I suppose I know if I don't get along with the z2 I will sell it on.
So far I'm liking it though... The Sony skin isn't as heavy as TW. Can't say I'm missing any of the TW features yet... I think most are nice to have features but not essential.
Sent from my D6503 using Tapatalk

How annoying is the port covers?

The only that's stopping getting the S5 is the annoying port covers, I do not want to open the cover every time I want to charge or listen no music.
And I don't ever need to use the phone in the rain so what is the point?

Take if off then...its held in by one screw behind the back plate
Sent from my SM-G900F using XDA Premium 4 mobile app

Well, don't buy it then?

The cover is only on the charging port, there isn't a headphone jack cover.
You can remove it, but really it's not that inconvenient for the few times a day you'll charge.

mediumsteak said:
Well, don't buy it then?
Click to expand...
Click to collapse
No ****.

VERY annoying.

Totally subjective. I generally only toss the phone on a charger twice a day...to me it's not a big deal to have to move the cover two times.

kuromusha38 said:
The only that's stopping getting the S5 is the annoying port covers, I do not want to open the cover every time I want to charge or listen no music.
And I don't ever need to use the phone in the rain so what is the point?
Click to expand...
Click to collapse
Well, you have 3 options.
1) remove them through the screw
2) pull it forcefully, if you're really annoyed and mad at it
3) use a wireless charging kit
#3 will be much better in your case because you don't know when you will really need something. It's much better to have it and not use it than not to have it and need it.

does S5 have wireless capability?

Do what I do then. I got myself a wireless charger. It is comparatively slow to charge compared to wired charging. So, for any topping off charging, or when I have time, I put it on wireless charger. This reduces my need to open port less than once a week.
---------- Post added at 12:27 AM ---------- Previous post was at 12:26 AM ----------
kuromusha38 said:
does S5 have wireless capability?
Click to expand...
Click to collapse
You can get a wireless enabled battery cover, or get a small chip from amazon that fits under standard battery cover for less than $25.

Just saw a YouTube video of a guy who's S5 USB cover broke after only two months.
User is called adrianisen.

Sensamic said:
Just saw a YouTube video of a guy who's S5 USB cover broke after only two months.
User is called adrianisen.
Click to expand...
Click to collapse
Depends a lot on the person's usage pattern too. Assuming same build quality on all phones, a person with delicate handling will take his longer than the one with rough handling. I've seen people yank the charging cables off the phones and crying when it breaks.
Sent from my SM-G900T using XDA Premium 4 mobile app

diablo009 said:
Depends a lot on the person's usage pattern too. Assuming same build quality on all phones, a person with delicate handling will take his longer than the one with rough handling. I've seen people yank the charging cables off the phones and crying when it breaks.
Sent from my SM-G900T using XDA Premium 4 mobile app
Click to expand...
Click to collapse
that's would be ****ing annoying as hell. Samsung bought an unnecessary step when charging. I charge my phone multiple times a day because I have a habit of charging when I'm at the desk because charging prevents the screen from going off and I prefer to have the phone screen on all the time because I use it as a calendar, reminder and a timer when I'm working.
That's why S5 sucks balls.
I'm waiting for the Note 4, hopefully it will not have any covers.

kuromusha38 said:
that's would be ****ing annoying as hell. Samsung bought an unnecessary step when charging. I charge my phone multiple times a day because I have a habit of charging when I'm at the desk because charging prevents the screen from going off and I prefer to have the phone screen on all the time because I use it as a calendar, reminder and a timer when I'm working.
That's why S5 sucks balls.
I'm waiting for the Note 4, hopefully it will not have any covers.
Click to expand...
Click to collapse
The cover is for water sealing. You could simply take it off if you don't want it.
Sent from my SM-G900T using XDA Premium 4 mobile app

Does the Note4 support wireless charging?

I haven't seen this covered and if it has been, I'd appreciate anyone posting a link to the article. Does the Note4 support wireless charging or will we have to get one of those stickers as we have to do for the Note 3?
Thanks in advance
nevermind, answered my own question, same crap. How come they can include wireless charging in the S5 but not in the Note4? Seems like they did some great stuff that seemed very basic and rushed the Note4 out without the same tech such as dust and waterproof. I don't get it.

I have been wondering the same thing. I certainly won't get one unless it has Qi charging. I am assuming they will release a wireless back cover again.

2xbass said:
I have been wondering the same thing. I certainly won't get one unless it has Qi charging. I am assuming they will release a wireless back cover again.
Click to expand...
Click to collapse
I don't want to buy another back or another "sticker". How is it other models have it built in and this, their "latest" version doesn't? This is truly a step backward in the Note series. Huawei's devices are looking very nice right now.

I wonder if the quick charging will work with wireless charging?

2xbass said:
I wonder if the quick charging will work with wireless charging?
Click to expand...
Click to collapse
No. They are two separate things... a given Qi charger only puts out a limited amount of power.

Do the Huawei phones have wireless charging? After you mentioned Huawei I checked out some of their best devices but couldn't see any wireless charging options.

If it is wireless charging, does it mean it will have a magnetic back? I need that so I can stick it to my car CD slot caddy.

sanjsrik said:
I haven't seen this covered and if it has been, I'd appreciate anyone posting a link to the article. Does the Note4 support wireless charging or will we have to get one of those stickers as we have to do for the Note 3?
Thanks in advance
nevermind, answered my own question, same crap. How come they can include wireless charging in the S5 but not in the Note4? Seems like they did some great stuff that seemed very basic and rushed the Note4 out without the same tech such as dust and waterproof. I don't get it.
Click to expand...
Click to collapse
Wait. They included wireless charging in the s5? My wife has the s5 and I had to buy a qi back to get wireless charging. I've had to buy qi receivers for all my other phones
Sent from my SPH-L900 using Tapatalk

Lol screw wireless charging, as long as I get 50% battery charge under 30 mins, I be satisfied
Sent from my GT-N8000 using XDA Free mobile app

COA4178 said:
Lol screw wireless charging, as long as I get 50% battery charge under 30 mins, I be satisfied
Sent from my GT-N8000 using XDA Free mobile app
Click to expand...
Click to collapse
^^What he said^^ and theres no way any wireless charger can do that, also given my experience with the LG G3 I am not ruling out damage to the battery or device due to overheating whilst wireless charging, my battery life on G3 perished after such time as I started using wireless charger.
I may be wrong, however, its fairly coincidental.
On a related note the pins are definitely there for wireless charging but no coil as far as I can tell.

Note 4 DOES support wireless charging with the correct door and or cheap coil which im sure will be available soon.

Glad to hear that it supports Qi charging (with add on). Since going wireless on my Note 3 I'll never plug my phone in again.

I'm pretty sure the reason the Note wasn't certified dust and water-resistant is the large long opening in it to accommodate the S-Pen.

chazglenn3 said:
I'm pretty sure the reason the Note wasn't certified dust and water-resistant is the large long opening in it to accommodate the S-Pen.
Click to expand...
Click to collapse
I don't see why Samsung or any smartphone company hasn't started using the vapor/nano-coat waterproofing. It wouldn't matter how big any hole is. See HzO, P2i and others.
The day I get my Note 4 I'm sending it in to get 'vaporized'. Only ~50 bucks, totally worth it for a $1000 device that fits in your pocket.

Idk why Samsung doesn't include the wireless charging back to begin with. That way all the cases would still fit it. It's irritating to say the least.

evolone said:
I don't see why Samsung or any smartphone company hasn't started using the vapor/nano-coat waterproofing. It wouldn't matter how big any hole is. See HzO, P2i and others.
The day I get my Note 4 I'm sending it in to get 'vaporized'. Only ~50 bucks, totally worth it for a $1000 device that fits in your pocket.
Click to expand...
Click to collapse
Its 60 bucks and it says specifically on the site that its not waterproof. I can find better ways to spend 60 bucks.

TabGuy said:
Glad to hear that it supports Qi charging (with add on). Since going wireless on my Note 3 I'll never plug my phone in again.
Click to expand...
Click to collapse
Same here. I use the stock samsung wireless cover I think I got for 20 bucks for my note 3. It works great with the TYLT and I don't use usb anymore. Even when traveling I have a portable battery "ravpower" with QI built in and it works great.

Because then they couldnt charge you the $40 for a new back.

COA4178 said:
Lol screw wireless charging, as long as I get 50% battery charge under 30 mins, I be satisfied
Sent from my GT-N8000 using XDA Free mobile app
Click to expand...
Click to collapse
I hope you know that quick charge feature required additional purchase of an adapter and good luck finding it before or soon after release.

samsing54332 said:
I hope you know that quick charge feature required additional purchase of an adapter and good luck finding it before or soon after release.
Click to expand...
Click to collapse
No it doesn't. The note 4 comes with a charger with 2 capacities. Normal and the quick charge. No need to buy any extra or new "special" charger.
Sent from my SM-N900T using XDA Free mobile app