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Touchstone wireless charging mod?

Has anyone thought about stuffing the touchstone coil into the nexus4? It sounds stupid i know since the n4 already has wireless charging built in, but the chargers are expensive and hard to find while the touchstone chargers are cheap and plentiful.

peachpuff said:
Has anyone thought about stuffing the touchstone coil into the nexus4? It sounds stupid i know since the n4 already has wireless charging built in, but the chargers are expensive and hard to find while the touchstone chargers are cheap and plentiful.
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The Qi protocol requires that the receiver send a handshake to the transmitter to start charging. If a non-Qi device is on the plate, then it will do a start and stop every 20 sec to poll for the signal. I am working on changing the Touchstone coil to a Qi transmitter coil and see what happens. I received the Qi coil, Qi inductive charging sleeve (for testing) and waiting on a Palm touchstone sleeve. My concern is that the touchstone without the Qi communication on charging status may overheat the N4 if it doesn't stop the power transmission properly.

terracode said:
My concern is that the touchstone without the Qi communication on charging status may overheat the N4 if it doesn't stop the power transmission properly.
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People have put touchstone coil's in other phones and had no issues, i don't see how it would be any different here. There are 4 contact points that connect the qi coil and nfc on the rear cover, attach the touchstone coil to 2 of them and hope you can close the cover with everything inside.

peachpuff said:
People have put touchstone coil's in other phones and had no issues, i don't see how it would be any different here. There are 4 contact points that connect the qi coil and nfc on the rear cover, attach the touchstone coil to 2 of them and hope you can close the cover with everything inside.
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He's doing the opposite; he's replacing the coil in the touchstone charger with a QI charging coil.

I connected the Qi compliant coil to the Touchstone board and it didn't recognize the Qi receiver so it didn't start energy transfer. I then moved the thin wire coil that the Touchston uses to sense a Palm Receiver to above the Qi coil. The transmitter didn't start with a Qi receiver, but did recognize the Palm receiver and started energizing the coil. Issue was the voltage was very low due to the mismatched coils (Qi transmitter and TS receiver). I need to take apart the Touchstone receiver to see what it uses to activate the transmitter. More tinkering is needed.

I think QI controls the charging level from the phone, by communicating back to the charger. It may not be a good idea to disable this mechanism by swithing a charge coil on manually (though I'd think that the phone would not charge at all, then).
If you want to try, I think QI uses 141 KHz. Supply that to a coil at the correct power and see if it charges.

jutezak said:
I think QI controls the charging level from the phone, by communicating back to the charger. It may not be a good idea to disable this mechanism by swithing a charge coil on manually (though I'd think that the phone would not charge at all, then).
If you want to try, I think QI uses 141 KHz. Supply that to a coil at the correct power and see if it charges.
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I am actually doing the opposite. The Qi coil is on the transmit side attached to the touchstone charger power board. I need a way of sending a proper signal to the Palm Touchstone so that it energizes the coil. The Qi receiver doesn't have the proper interface to send a signal to the Touchstone to power up.

$50 is hardly expensive.... Wall Mart wanted $50 for a plug in travel charger for my galaxy tablet. Just find the lg one.
Sent from my Nexus 4 using Tapatalk 2

Qi coil
terracode said:
I am actually doing the opposite. The Qi coil is on the transmit side attached to the touchstone charger power board. I need a way of sending a proper signal to the Palm Touchstone so that it energizes the coil. The Qi receiver doesn't have the proper interface to send a signal to the Touchstone to power up.
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So are you able to replace the qi coil successfully to TS?

For someone who want's multiple docks around, $50 does add up. For someone like me who has 2 or more touchstone chargers laying around from previous mods/palm phones this would be useful.
I've tried to do the following to my Nexus 4, but couldn't get off the back cover without damaging the phone (I could get everything but one corner of the phone to pop open, I noticed I was beginning to damage the body a bit and stopped trying).
Mind you, the following needs to be used with a case; works best with rugged cases/hard cases.
If anyone is able to open their phone up you can try my following idea:
1. Remove the back of the phone
2..There should be 4 pins, 2 for NFC, and 2 for the QI coil.
3. Use a voltmeter to find out which pin is positive and which is negative.
-- I am not sure if the touchstone coil could fit INSIDE the phone, so I assumed it would not fit, and came up with this solution--
4. Using copper tape (if you've modded your GNEX before, you probably have some left over) stick it onto the pins, and lead them outside of the back cover, wrapping around so you see the copper tape on the OUTSIDE of the phone
5. Close the phone back up, the copper tape should now be hanging outside of the side of the phone.
6. Get your touchstone coil and tape/adhere it to the inside of your selected case.
7. Take your copper tape yet again and solder it to the leads of the touchstone coil, and position the copper tape so it touches the existing tape (from the nexus) when you put the case onto your phone.
That's it. The touchstone should be thin enough so that it doesn't interfere with the fitting of the case. This was the situation for my previous two mods with Galaxy Nexus's, the fit of the case was no problem. (Otterbox Commuter, and SGP Neo-Hybrid).

DDRFAN said:
For someone who want's multiple docks around, $50 does add up. For someone like me who has 2 or more touchstone chargers laying around from previous mods/palm phones this would be useful.
I've tried to do the following to my Nexus 4, but couldn't get off the back cover without damaging the phone (I could get everything but one corner of the phone to pop open, I noticed I was beginning to damage the body a bit and stopped trying).
Mind you, the following needs to be used with a case; works best with rugged cases/hard cases.
If anyone is able to open their phone up you can try my following idea:
1. Remove the back of the phone
2..There should be 4 pins, 2 for NFC, and 2 for the QI coil.
3. Use a voltmeter to find out which pin is positive and which is negative.
-- I am not sure if the touchstone coil could fit INSIDE the phone, so I assumed it would not fit, and came up with this solution--
4. Using copper tape (if you've modded your GNEX before, you probably have some left over) stick it onto the pins, and lead them outside of the back cover, wrapping around so you see the copper tape on the OUTSIDE of the phone
5. Close the phone back up, the copper tape should now be hanging outside of the side of the phone.
6. Get your touchstone coil and tape/adhere it to the inside of your selected case.
7. Take your copper tape yet again and solder it to the leads of the touchstone coil, and position the copper tape so it touches the existing tape (from the nexus) when you put the case onto your phone.
That's it. The touchstone should be thin enough so that it doesn't interfere with the fitting of the case. This was the situation for my previous two mods with Galaxy Nexus's, the fit of the case was no problem. (Otterbox Commuter, and SGP Neo-Hybrid).
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Was this simply the metal coil or the entire assembly including board from a Pre charging cover? very Interested as I have a Nexus 4 I will be receiving Monday

singularityq said:
Was this simply the metal coil or the entire assembly including board from a Pre charging cover? very Interested as I have a Nexus 4 I will be receiving Monday
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You should only have to replace the metal coil.
OP, a simple google search would have sufficed http://www.webosnation.com/nexus-4-gains-touchstone-charging-thanks-clever-hacking

Case that covers ports that also works with QI charger?

Does one of these exist? I have a cheap TPU S-line case from ebay that I bought when the phone was first released. It works with the QI charger but it does not keep the dust out of the ports.
I bought two cheapies off ebay to test if something a little thicker would work with the QI charger and so far nothing does. Seems that any case that covers ports are thick and may not work with the QI charger.
BTW its the Energizer charger, not the official Google one.

Have you considered just getting a microusb port cover? http://www.moddiy.com/products/modDIY-Micro%2dUSB-Protective-Jack-Cover.html for example

ziddey said:
Have you considered just getting a microusb port cover? http://www.moddiy.com/products/modDIY-Micro%2dUSB-Protective-Jack-Cover.html for example
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I have but if a case exists that will work then I would like to give that a shot first. I notice the covers for the cases are snug fit so it wont allow dust in at all when a plug may leave room between it and the case. I work in a very dirty environment and would like to keep the phone itself as clean as possible.

[Q] Magnetic flip cover interference?

I read in the Note 2 forum that using flip covers that come with magnetic flaps interferes with the s-pen, gps.. Are they still present in the Note 3? I found a nice flip cover for Note3 but it comes with a magnetic flap. Having second thoughts about buying it because of the interference issues. Thanks for sharing your inputs about this.

ttl8me said:
I read in the Note 2 forum that using flip covers that come with magnetic flaps interferes with the s-pen, gps.. Are they still present in the Note 3? I found a nice flip cover for Note3 but it comes with a magnetic flap. Having second thoughts about buying it because of the interference issues. Thanks for sharing your inputs about this.
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You are correct. There is some type of interference where the magnetic field causes the screen not to recognize input in some areas. I just got a plastic and leather flip case with a button style snap.
Hope this helps!

Nice to know that the magnet causes interference. Will have to check out other flip covers for my Note 2.. Thanks a lot!

ttl8me said:
Nice to know that the magnet causes interference. Will have to check out other flip covers for my Note 2.. Thanks a lot!
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Well let me just input my two cents worth. I have a leather belt pouch with a magnetic button and I have not experienced any problem what so ever. On the other hand I place my phone with the screen facing my body.

fantom305 said:
Well let me just input my two cents worth. I have a leather belt pouch with a magnetic button and I have not experienced any problem what so ever. On the other hand I place my phone with the screen facing my body.
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I hope I didn't confuse you with my post.. I was talking about "flip cover that comes with magnetic flaps"... You're using "leather belt pouch with a magnetic button", is that the same as "flip cover with magnetic flaps"? Please correct me if I'm wrong, coz what I understand by "leather belt pouch" is it's strap in your waist and that's where you place your Note 3. But is the Note3 "attached" to your leather belt pouch or just place inside the pouch when your not using it? When you are using your Note3, do you still use it while inside your leather belt pouch or do you take it out from the pouch? Thanks for your input as it will greatly help us decide what case/protection we should choose for our Note 3..

[Q] Cases and official wireless charging cover

Has anyone found cases that fit with the official wireless charging cover attached ? Maybe even bumper style cases?
I'm using a generic qi battery sticker and tap-to-pay doesnt work so I'm considering getting the official cover, but I dont want to lose my spigen case in the process

Nothing available. I'm using the sticker and Versus case when working, and the official Qi back at other times so I have working tap to pay.

Looking for an embedded magnetic wireless charging case+mount

Never got into wireless charging on my S7. Always had a magnetic mount on the vent with a metal plate between the phone and the case. Now that I'm hooked on wireless charging, I'm on a similar setup but with a wide ring magnet between phone and case so it doesn't interfere with wireless charging. My one issue is that when the phone is flat on a desk, it rocks just a little (and I like a thin case). So what I'm looking for is a thin case, with an embedded magnet (so it's a flat bottom surface) and where the magnet is in a configuration where it doesn't interfere with wireless charging (whether it's a wide ring, or a few magnet points spaced out, etc.) I've thought about digging into my case as a DIY but not there yet Pitaka MagCase looks like it would so the trick but it hasn't been released yet. Any out there that I'm just not finding?
Thanks!
And, this is on an S9 plus.

Can you post pics of your setup? I'm looking for a magnetic wireless car charger that holds up via the vent.
Sent from my SM-G965U using Tapatalk

thx for the tip.... now i want one too
https://www.ipitaka.com/collections/magcase-for-samsung-galaxy-s9

Search on Amazon for "Magnetic Wireless Car Charger, ELEGIANT Fast Wireless Charging Car Mount Phone Holder". Looks like it's now out of stock but there's dozens just like them. I went with something inexpensive to make sure it worked. And it did- fast charged on the mount as well as the Samsung official desktop wireless charger. Although the swivel ball joint on the vent mount was a little flimsy. I placed the magnetic ring such that the top of it was about 1/4" below the bottom of the fingerprint sensor (I spent a lot of time trying to figure out exactly where the coils in the phone were; you can take a good guess by knowing that the desktop Sammy wireless charger woks with both the phone standing upright as well as on it's side and that it's got two coils).
Even though the ring is very thin, it still adds a slight bulge in the middle and makes it "wobble" a bit. I don't have the right shop equipment to shave a circular channel on the inside of the case to place the magnetic ring

Found one made by Nillkin. Have to use their own charging mount (which makes perfect sense as it uses four small magnets at four corners of the mount). Reviews aren't great, it's standard (not fast) charging, and the I like my side buttons uncovered.

Xvida makes one as well (a little bulkier than the Pitaka) but S8 is the most recent they support as of now.

hey guys,
you might wanna hold off getting the pitaka magmount, I received info from pitaka that the s9+ position of the wireless charging coil of S9 therefore the position of the built-in metal plate is different from other cases, they are still testing there new wireless charging mount, it will come out later.
I will be getting a review unit of the case later and I will let you know how I feel about the case. cheers guys.

xzr3b0rnzx said:
hey guys,
you might wanna hold off getting the pitaka magmount, I received info from pitaka that the s9+ position of the wireless charging coil of S9 therefore the position of the built-in metal plate is different from other cases, they are still testing there new wireless charging mount, it will come out later.
I will be getting a review unit of the case later and I will let you know how I feel about the case. cheers guys.
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I have the iOttie magnetic mount/quick charger in my car.
It worked really well with my S8 and note 8.
I put the small metal ring inside the case on my S9+ and it was very finicky.
Sometimes it would only charge (not fast charge) and other times it wouldn't charge at all.
I found that by placing the ring up higher near the camera, it maintained position to quick charge the phone and hold it securely.
The qi coil in the S9+ seems to be a bit closer to the camera than the other devices I've used.
I hope this helps.
Sent from my SM-G965U using Tapatalk

Great- thanks- similar to my current setup- I'm just looking for a case where the ring is actually embedded in the case, so the back of the case is perfectly flat.
Looks like from another thread the S9+ MagCase has launched- not on Amazon yet but on the Pitaka site- would love to see a review to make sure it quick charges wirelessly (as opposed to not quick). Sounds like they had issues with magnet placement originally and that might affect it.

Nillkin makes one. It's on Amazon as well.

y2k1ltd said:
Nillkin makes one. It's on Amazon as well.
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Yes- thank you- the Nillkin looks great- and a lot less expensive than the Pitaka- but the case has full edges that cover the buttons which I'm not a fan of.

texasmax said:
Yes- thank you- the Nillkin looks great- and a lot less expensive than the Pitaka- but the case has full edges that cover the buttons which I'm not a fan of.
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Gotcha, it's not bad.