Develop Bugs

Inductive Charging

What is the best inductive (wireless) charging case/pad that I can get? I have not found any at all. I have the red at&t Galaxy S III.

Wait for Samsung to release their

and when will that be? 2014? September is over, nothing released.
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le_novo said:
and when will that be? 2014? September is over, nothing released.
Sent from my GT-N8000 using xda app-developers app
Click to expand...
Click to collapse
actually there are multiple wireless cover setups. for instance, the Verizon one has been confirmed working on ALL models of phone. search this section for "wireless charging" and you should see a couple of threads.

Inductive charger from Hong Kong ok?
If you look on Ebay (cant provide a link because I'm new)
You will see the wireless charger for the samsung galaxy s3 with "touch stone".. Has anyone tried this out? Does anyone know if you just buy the inductive phone cover from the same seller, will it work on another inductive charger (like the charging pads that are available everywhere?)

hgpot said:
I have the red at&t Galaxy S III.
Click to expand...
Click to collapse
That's too bad, because inductive charging only works on the Pebble Blue and Marble white phones.

Does anyone have an extra Verizon wireless charging cover that they are looking to sell? None of the Verizon stores in the midwest seem to have gotten them in and they aren't available online. PM is you have one to spare.

scarrmrcc said:
actually there are multiple wireless cover setups. for instance, the Verizon one has been confirmed working on ALL models of phone. search this section for "wireless charging" and you should see a couple of threads.
Click to expand...
Click to collapse
it doesn't work with the korean version SHV- E210, the back case has a antenna hole and the little clips are all positioned differently.

davpel said:
Does anyone have an extra Verizon wireless charging cover that they are looking to sell? None of the Verizon stores in the midwest seem to have gotten them in and they aren't available online. PM is you have one to spare.
Click to expand...
Click to collapse
Pm sent. Going to store today to pick one up.

(VIDEO) Review of the wireless charging Touchstone Back cover mod from Ebay

Here is my review video! I am a huge fan of the palm touchstone wireless charging mod and this is the best way to get it...
http://youtu.be/NGvyWBOQy0U

Nice, couple questions.
Do you use a case? I have an Otterbox Commuter and was wondering if that is thin enough to still register.
Also, will that back cover work on the Energizer Qi charging system?
Sent from my SPH-L710 using xda app-developers app

Thanks for the video!, few questions tho:
Does it work with a case (I imagine this will be a popular question)
Is the quality of the back cover noticeable different to the stock back cover? Or is it a completely stock totally 100% the same back cover with the wireless charging mod?
And what charging pad do you recommend?

Unfortunately I do not use cases as I just use a clear shield so I have no idea if it works with otterbox or any case.
This mod will not work with any pad. It will only work with the Palm Touchstone. I dont recco any pad as I only recco the touchstone. I like having one in my car, at the office and one on the nightstand.

stu5797 said:
Unfortunately I do not use cases as I just use a clear shield so I have no idea if it works with otterbox or any case.
This mod will not work with any pad. It will only work with the Palm Touchstone. I dont recco any pad as I only recco the touchstone. I like having one in my car, at the office and one on the nightstand.
Click to expand...
Click to collapse
Can you try just putting something a few mm's thick between the phone and the charge pad and seeing if it still charges?

i got this mod with a 3mm thin case from ebay. they work perfectly.
Sent from my GT-I9300 using xda app-developers app

It works with a few mm but not sure how that affects charging. Please dont just take my word for it. Dont want you spending 30 on a back cover you cant use. But if it doesnt work i will buy it from ypu for a major discount. Lol

I dont believe qi is the way to go. The new nexus has wireless charging like the touchstone. I wonder if its compatible?

probably not. afaik, each of these wireless charging is proprietary and most probably incompatible with each other. The touchstone will only work with touchstone products (atleast from what I understand, it's different frequencies and also component parts differences)

You are probably right but i hope you are wrong... either way i am so surprised more phones dont charge like this.

Nexus 4 Qi
check out the news regarding Nexus 4 Qi "Orb" in this forum at "Qi Wireless accessories " Post# 136 on page 14 (http://forum.xda-developers.com/showthread.php?t=1933523)

Hi axel. Is there any source to your news?

Nexus4 Qi
stu5797 said:
Hi axel. Is there any source to your news?
Click to expand...
Click to collapse
To name a few:
http://techcrunch.com/2012/10/29/here-are-the-official-specs-for-the-nexus-4-and-nexus-10/
http://techwhack.com/google-nexus-4-supports-qi-wireless-charging-tech-5300/
http://www.phonearena.com/news/Google-announces-Wireless-Charging-Orb-for-the-Nexus-4_id36060#1-

Google Nexus 4 Wireless
Now on Google's website as well:
https://play.google.com/store/devices/details?id=nexus_4_8gb&feature=microsite

mputtr said:
probably not. afaik, each of these wireless charging is proprietary and most probably incompatible with each other. The touchstone will only work with touchstone products (atleast from what I understand, it's different frequencies and also component parts differences)
Click to expand...
Click to collapse
Frequencies have anything to do with it. I'm pretty sure inductive charging uses magnetic fields to charge your device hence the giant coil in the phone cover. BUT, each base is most likely specific to it's counter part coil as different size coils will charge at different rates from the magenet in the base vs the amount of voltage and amps they put through the magnet. So it would make sense if a say Powermat didn't work with a Touchstone coil.
On the other hand, the touchstone uses a standard phone charger so it has a maximum of 5V at 1amp. I do not know what power source the Duracell Powermat uses (looked a little but didn't search long) so if it were to use a higher voltage at the same amps or higher amps at the same voltage then it may charger your phone faster.
NOTE: It should also be noted that if you use a different charging source with the touchstone base you could end up generating a different level of voltage and in turn damage your phone. It's not recommended to do this. The downfall (that I have found) with the touchstone setup is that it WILL charge through thin TPU cases and my Rock Quicksand case BUT the magnet is not strong enough to hold the phone in place. Since the touchstone is angled and not flat the phone starts to slide down and charging stops.

You can always switch out the magnets so your phone sits better on the touchstone. Its easy to change and it can make a nice diference.

Just ordered one. Touchstone rules.

@setzer715
that's an interesting read. thanks for clarifying the differences. I skimmed on articles about different wireless charging tech and remembered a few mentions of frequencies.
If only there is a standard that can adapt or provide compatibility with other methods... but that would probably drive up costs and probably extend r&d time.
Sent from my GT-I9300 using xda app-developers app

mputtr said:
@setzer715
that's an interesting read. thanks for clarifying the differences. I skimmed on articles about different wireless charging tech and remembered a few mentions of frequencies.
If only there is a standard that can adapt or provide compatibility with other methods... but that would probably drive up costs and probably extend r&d time.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
may be in the future a multi format will be available.:fingers-crossed:

Hello.
I'm using the same charger with my i9300. But it charging the phone too long
Also I have removed a wireless charging module from a custom back cover and install it on my original i9300 back cover.

Wireless charging confirmed working on our T-mobile S4

Hey guys, don't know if people have done this already, but I just got a T-mobile S4 for testing this weekend and I wanted to find out if the wireless charging port was enabled since I've done the touchstone wireless charging mod on my S3 and note 2.
It was especially a PIA on the note 2 since T-mobile, in all of its corporate and engineering wisdom, decided to disable the feature for the Note 2, even though it was enabled for the S3. So for those of you who don't like to dissemble your new phone and solder on a tiny PCB, you'll be happy to know that I confirmed that wireless charging ports on the S4 is indeed enabled.
I took a pack of 4x AAA battery assembly, which provides ~4.7v of DC power, and connected to the charging port in the back. The small pair on the left is the charging port, the pair on the right is supposedly NFC, even though the NFC antenna is located on the battery for S4.
As you can see from the pics, the "the phone is now charging wirelessly" notification pops up when the circuit is live, which is pretty annoying IMO and can't be disabled (that's why we have custom roms right?)
I haven't gotten a chance to install the actual touchstone wireless charging receivers on the back yet, as this is a test unit that I have to return, but I don't imagine this to be too different than on the S3. There will be a slight bulge, but it'll be worth it.

How do I put this mod in use
Sent from my SGH-M919 using xda app-developers app

Tried it with my Qi charger from Energizer and it's doing absolutely nothing.

RonDigital828 said:
How do I put this mod in use
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Just follow the instructions from this thread (it's for an S3). The design for S3 is pretty similar, so it should work. Remember the positive pin is on the left, negative (ground) is on the right.
Also note that the touchstone mechanism is not Qi compatible, so it wont work with the newer charging mats for Nokia or HTC.
And always remember to perform these mods at your own risk.

mattlgroff said:
Tried it with my Qi charger from Energizer and it's doing absolutely nothing.
Click to expand...
Click to collapse
Did you install any receiver on the S4?
I didn't mean to confuse anyone, I only confirmed that it is POSSIBLE to perform the mod. I used a 4.7v DC power supply to test if the wireless charging pins on the back are live, which wasn't the case for T-mobile note 2 so I had to check to make sure.
If you already have a Qi charger, you can get one of these receivers and connect it to your phone, then you'll be able to charger with your mat
http://www.ebay.com/itm/qi-Wireless...l_Phone_PDA_Chargers&var=&hash=item51abef6de9
But I would argue that the touchstone method is superior to qi if you plan on using it in a car, as the magnets keep the phone in place is it's really convenient to connect/disconnect when you're driving.

ncc1701k said:
Did you install any receiver on the S4?
I didn't mean to confuse anyone, I only confirmed that it is POSSIBLE to perform the mod. I used a 4.7v DC power supply to test if the wireless charging pins on the back are live, which wasn't the case for T-mobile note 2 so I had to check to make sure.
If you already have a Qi charger, you can get one of these receivers and connect it to your phone, then you'll be able to charger with your mat
http://www.ebay.com/itm/qi-Wireless...l_Phone_PDA_Chargers&var=&hash=item51abef6de9
But I would argue that the touchstone method is superior to qi if you plan on using it in a car, as the magnets keep the phone in place is it's really convenient to connect/disconnect when you're driving.
Click to expand...
Click to collapse
I was under the impression the S4 had wireless charging built in, whoops.

Me too!!!
That was a disappointment!!! :banghead:
DEVICES:
NEXUS 7 32GB STOCK
(NO ROOT)
T-MOBIL LG G2X (LG-P999)
STOCK (ROOTED)
Sent from my LG-P999 using xda premium

mattlgroff said:
I was under the impression the S4 had wireless charging built in, whoops.
Click to expand...
Click to collapse
Samsung will be officially supporting wireless charging for the S4 through accessories. The ad for the pad and back wireless charging cover is already listed on the promo S4 accessories page. http://www.samsung.com/global/microsite/galaxys4/
Though there seems to be no price or date yet.
Of course there will be 3rd party wireless charging solutions as well.

ive got a palm touchstone but what receiver do i need to buy to have my GS4 work with it ?
also;
can anyone confirm or deny wether or not the palm touchstone + receiver will trickle charge the GS4 after it is fully charged ? (or does it completely cease charging until the phone is physically picked up and replaced ?)

wavrunrx said:
ive got a palm touchstone but what receiver do i need to buy to have my GS4 work with it ?
also;
can anyone confirm or deny wether or not the palm touchstone + receiver will trickle charge the GS4 after it is fully charged ? (or does it completely cease charging until the phone is physically picked up and replaced ?)
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1877191
the link above is the thread with a tutorial on how to do the mod for S3, should apply to S4 as well.
I can confirm that it trickle charge S3 and Note 2 ( if I understood you correctly, it will keep the phone charged as long as it's on the touchstone base), shouldnt be any different for S4.

ncc1701k said:
http://forum.xda-developers.com/showthread.php?t=1877191
the link above is the thread with a tutorial on how to do the mod for S3, should apply to S4 as well.
I can confirm that it trickle charge S3 and Note 2 ( if I understood you correctly, it will keep the phone charged as long as it's on the touchstone base), shouldnt be any different for S4.
Click to expand...
Click to collapse
ok cool;
but.
i did the mod for the s3....... twice.
it didnt work out; so id rather just buy a pre-made module; do you know what one i can use fro the s4 ?

wavrunrx said:
ok cool;
but.
i did the mod for the s3....... twice.
it didnt work out; so id rather just buy a pre-made module; do you know what one i can use fro the s4 ?
Click to expand...
Click to collapse
I havent tried the premade modules yet, but the do look quite a bit thinner
try this
http://www.ebay.com/itm/Samsung-Gal...S_Cell_Phone_PDA_Chargers&hash=item232a7f9413
yeah it's not the easier mod to do and def took me quite a few tries too

Took the Qi wireless receiver pad from my Galaxy S3, had to slightly tear it apart to reverse the little gold inserts that create the contact points for the wireless battery charging and now have a fully functioning wireless charging Galaxy S4 !
Saved myself quite a bit of money doing that.

alexnader said:
Took the Qi wireless receiver pad from my Galaxy S3, had to slightly tear it apart to reverse the little gold inserts that create the contact points for the wireless battery charging and now have a fully functioning wireless charging Galaxy S4 !
Saved myself quite a bit of money doing that.
Click to expand...
Click to collapse
Can you post some pictures.
Thanks in advanced.
Sent from my SGH-M919 using xda app-developers app

it is not easy for nomal people to change the phone like this. if there's no official support,
most of people will not care that.
although , i like wireless charging very much

michaeljimmy said:
it is not easy for nomal people to change the phone like this. if there's no official support,
most of people will not care that.
although , i like wireless charging very much
Click to expand...
Click to collapse
It seriously only took 5~10 minutes once I'd figured out which way to put what.
I have the photos set up and just need to put notes on them explaining what I did.
Will post them when I get home tonight (12am CT)

Ummmm, from everything I read the pins you have it hooked up to are NOT the ones for inductive charging, the gold ones on the right are......
I could be mistaken however. I remember the s3 used those pins, but I've read in a couple places that the ones made specifically for inductive charging are the ones on the right above the battery.

TeknoGodz said:
Ummmm, from everything I read the pins you have it hooked up to are NOT the ones for inductive charging, the gold ones on the right are......
I could be mistaken however. I remember the s3 used those pins, but I've read in a couple places that the ones made specifically for inductive charging are the ones on the right above the battery.
Click to expand...
Click to collapse
What ARE all the other pins back there for? I figured one set (had no idea which one) was for inductive charging, but couldn't figure a reason for the others..

coyttl said:
What ARE all the other pins back there for? I figured one set (had no idea which one) was for inductive charging, but couldn't figure a reason for the others..
Click to expand...
Click to collapse
the smaller set is wireless charging, the larger set is presumably for additional NFC antenna (although I measured no resistance in the circuit with my voltmeter), as the back cover seemed to have a carved out area for a NFC like the Note 2 did.
Although the S4 battery says "NFC" on it, which seems like samsung made a last minute decision to put NFC on the battery instead of the back cover... oh samsung ¯\_(ツ)_/¯

ncc1701k said:
the smaller set is wireless charging, the larger set is presumably for additional NFC antenna (although I measured no resistance in the circuit with my voltmeter), as the back cover seemed to have a carved out area for a NFC like the Note 2 did.
Although the S4 battery says "NFC" on it, which seems like samsung made a last minute decision to put NFC on the battery instead of the back cover... oh samsung ¯\_(ツ)_/¯
Click to expand...
Click to collapse
Nope, the NFC is in fact in the battery, the same way Samsung has been doing it for years now. They made no change.
Oh false information from people that don't know what they're talking about ¯\_(ツ)_/¯

Where to buy an LG quick case

Seems I can't find anyone that sells the cases. I really want the LG G3 quick circle case with wireless charging. Does anyone know if the at&t case works?

Ebay
Sent from my LG-D851 using XDA Free mobile app

thehavock18 said:
Seems I can't find anyone that sells the cases. I really want the LG G3 quick circle case with wireless charging. Does anyone know if the at&t case works?
Click to expand...
Click to collapse
vzw

I picked my case at the Verizon store. In the Phoenix area, at least, the Verizon variant is just the "folio-case". It has the quick-circle functionality, but does not have the wireless charging portion. Additionally, it attaches over the entire back of the phone. The AT&T case actually replaces the back cover of the phone, and is wireless charging ready.

Don't get teh AT&T version. It will NOT have wireless charging. We use Qi standard while the AT&T version uses PMA.

What I was afraid of

Could I get the ATT case and a powermat charger? Or does the tmobile variant not even allow powermat under those circumstances?

The pins don't trigger as there is too much wattage. PMA uses higher wattage than Qi as that's the main reason why it's not changeable. Currently unknown is if LG made this hardware or software. I honestly wouldn't bother and wait to get one from Verizon, AT&T, or T-Mobile.
The ones from Verizon, Sprint, and T-Mobile will use Qi. Just make sure you get the right one as there is a knock off without wireless charging coil in them.

Tidbits said:
The pins don't trigger as there is too much wattage. PMA uses higher wattage than Qi as that's the main reason why it's not changeable. Currently unknown is if LG made this hardware or software. I honestly wouldn't bother and wait to get one from Verizon, AT&T, or T-Mobile.
The ones from Verizon, Sprint, and T-Mobile will use Qi. Just make sure you get the right one as there is a knock off without wireless charging coil in them.
Click to expand...
Click to collapse
Talked to T-Mobile area manager today and he said none of his stores have plans to carry the case.When I asked the reason he said thats all his boss told him. Not sure if T-Mobile will carry any of the cases.

Then i will walk into Verizon and buy it like i did with the dot view case.
Sent from my LG-D851 using Tapatalk

good case

I thought the VZW case wasn't going to support Wireless Charging. I'm assuming it's safe to get it there then from the looks of this thread? Which is great thanks to a 25% accessories discount I get through work.

CrucialBT said:
I thought the VZW case wasn't going to support Wireless Charging. I'm assuming it's safe to get it there then from the looks of this thread? Which is great thanks to a 25% accessories discount I get through work.
Click to expand...
Click to collapse
get this
http://www.verizonwireless.com/acce...ging-quick-circle-folio-case-for-lg-g3-black/
not this
http://www.verizonwireless.com/accessories/lg-quick-circle-folio-case-for-lg-g3-violet/

Tidbits said:
get this
http://www.verizonwireless.com/acce...ging-quick-circle-folio-case-for-lg-g3-black/
not this
http://www.verizonwireless.com/accessories/lg-quick-circle-folio-case-for-lg-g3-violet/
Click to expand...
Click to collapse
Wow... $10 more just for wireless charging?

It's the same price as the AT&T version, and the other one seems to be a generic. From the rep tried to explain the other one it does not backplate on the non wireless charging one.
You can always get your own Qi parts and put them on your original back plate may come out cheaper.

Just add the wireless charging sticker on to the quick circle case. Pretty simple fix. On another note: is it true that T-Mobile is giving out the OEM quick circle cases with purchase of a G3 now??

Without wireless charging and also it's a snap on. You don't remove the backplate.
Sent from my LG-D851 using Tapatalk

You can buy the original here:
http://www.wackydot.com/original-lg-g3-quick-circle-nfc-wireless-charging-case-metallic-black
Its a gorgeous case, QI and NFC work but the shipping is pretty slow.

Semantics said:
You can buy the original here:
http://www.wackydot.com/original-lg-g3-quick-circle-nfc-wireless-charging-case-metallic-black
Its a gorgeous case, QI and NFC work but the shipping is pretty slow.
Click to expand...
Click to collapse
That appears to be for the Korean version, with the cutout for the antenna. Can't remember the model number, maybe F400, but if it is indeed for the Korean version it wouldn't work with the US variants sans AT&T. Reason is that the pins are spaced differently on the Korean model compared to the US models.

eyezikkim said:
Just add the wireless charging sticker on to the quick circle case. Pretty simple fix. On another note: is it true that T-Mobile is giving out the OEM quick circle cases with purchase of a G3 now??
Click to expand...
Click to collapse
http://www.t-mobile.com/cell-phones/lg-g3.html
Yes. But it's just the snap on case, not the wireless charging one.

Will at&t kill qi charging on Note 4?

Not too long ago I bought an AT&T LG g3, it promptly got returned when it was found out that AT&T killed Qi charging and put in pma in its place.
With that two hundred dollar trade in going on I wouldn't hate a new note 4.
So.... Will at&t do the same with the note 4, and kill qi charging?

The Note 4 will not come with any form of wireless charging, none of the variants do. However, they will make a Qi back cover. Even if AT&T pulls the plug on the Qi back in favor of a PMA back, you could just buy a different back fdom a different carrier. But seeing as how this is a Samsung accessory and not built into the phone, I highly doubt AT&T will try to meddle with this at all. They probably wont even sell it in store because of their partnership with PMA.

Unless the ATT version has the contact pins removed that are needed for wireless charging to work. And we won't know that till the device is out. I hope not though as I really like wireless charging.
Sent from my SM-N900T using Tapatalk

I highly doubt that. This would actually cost more to mass produce and/or assemble an entirely different board per carrier variant.

rytymu said:
I highly doubt that. This would actually cost more to mass produce and/or assemble an entirely different board per carrier variant.
Click to expand...
Click to collapse
It has been done in the past with certain carriers. I forget which phone though right now. That is why I mention it.
Sent from my SM-N900T using Tapatalk

Yeah, they'll probably kill it. AT&T is Powermat all the way.

Yes on the LG g3, people bought Qi charging coils for the at&t variant only to find out that AT&T actually disabled or enabled (depending on your point of view) wireless charging at the hardware level to only allow for pma charging.

drmacrofish said:
It has been done in the past with certain carriers. I forget which phone though right now. That is why I mention it.
Sent from my SM-N900T using Tapatalk
Click to expand...
Click to collapse
Pretty sure you're thinking of the Verizon (or was it T-Mobile) Note 2 which for some magic reason had the pins blocked. Can't remember if the pins were hidden under the plastic mid frame that was different or if they removed them from the board. It only happened with that model of Note. The Note 3 they were all available to buy the $40 new rear door or Amazon Qi pad for.