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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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Click to collapse
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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Click to collapse
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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Click to collapse
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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Click to collapse
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.
Click to expand...
Click to collapse
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).
Click to expand...
Click to collapse
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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Click to collapse
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
so, Ive wanted a magnetic car dock for a while. Airdock makes a nice one. but the airdock 2 is not available. at least last time i checked. So i decided to make one. this has been an on going project for about a month. the first one i made was quite simple. very much like the one on youtube. just 4 magnets placed in a LG charging pad. problem was, the charging would start and stop randomly. I assumed it had to do with the magnet locations. some how it was effecting the charging (considering Qi charging is magnetic)
back to the drawing board! and then project after project lol. I think i must have made 8 docks. all had issues and I was not satisfied. I even made one out of carbon fiber, or an attempt to! didnt turn out well.. then I went a bit out side of the box. so heres what i did
First, i had an extra Turbo battery cover. i plastic dipped that. my theory was plastic dip would work as a release agent for my next step. then I took an old iphone bumper case my wife had and used that as my frame.. alined 4 magnets next to the moto symbol (i put 2 small peaces of metal in that area in side the phone) then i used tap to cover all the gaps the case would have on the phone, and poured in a full tube of plastic weld epoxy. I had no clue what would happen but i was willing to try!
after everything cured it worked really well.. I was able to take the epoxy off the phone cover fairly easly (you can see it pulled off some of the vz and droid writing.. as well as the moto symbol)
now, i have a form that matches the turbo exactly.
the next step was just a mater of sanding and cutting off any of the over pour and any imperfections in the epoxy.
then i put in the wireless charging pad
next, i plastic dipped the front (being rubber it works really well as a non slip surface)
then i warped the outside in some auto chrome trim
and that was that! new charging dock for my car that fits like a glove! because it matches the turbos curves, it auto centers it self. and holds super tight! phone wont move at all... very happy with the out come.. let me know what you guys think! thanks
thats really sweet ill buy one ?
That looks sweet!!!
Sent from my XT1254 using Tapatalk
Would love to see some links to the supplies you used. I've been wanting to make my own magnetic car dock.
Bad ass! I already tried to make a dock, but it doesn't charge, and the magnets don't hold that well. I don't have the patience (or cajones to open up my phone) to try this.
Im Saint said:
Would love to see some links to the supplies you used. I've been wanting to make my own magnetic car dock.
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Click to collapse
Not really links I could use as everything i got was locally bought. Magnets from ace hardware. Cheap iPhone 4 case. Plastic dip and plastic weld epoxy made by jb weld. Got that stuff at pep boys. Just gotta get creative lol. Oh, and the small metal I put in the phone was from my Wifes ear rings =). Super thin metal. Earrings work great!
Wait... why does it look like it's Qi charging??? Did I miss that step?
boneriffic said:
Wait... why does it look like it's Qi charging??? Did I miss that step?
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Click to collapse
Guess so lol. There's a pic and I said "then I put in the wireless charging pad".
zathus said:
Not really links I could use as everything i got was locally bought. Magnets from ace hardware. Cheap iPhone 4 case. Plastic dip and plastic weld epoxy made by jb weld. Got that stuff at pep boys. Just gotta get creative lol. Oh, and the small metal I put in the phone was from my Wifes ear rings =). Super thin metal. Earrings work great!
Click to expand...
Click to collapse
Fair enough!
I guess what I really wanted to know was which wireless charging pad you had in there. Just a generic Qi charger?
Im Saint said:
Fair enough!
I guess what I really wanted to know was which wireless charging pad you had in there. Just a generic Qi charger?
Click to expand...
Click to collapse
Oh of course.
http://www.shopandroid.com/lg-wcp-300-qi-wireless-charging-pad/5A233A18004.htm
That was just the first link I found. I got mine for like 20 bucks.
I guess I should add, I cut the back off a cheap car dock and glued it to the back of the wireless charging pad.
Just checking in - any issues with this long term? All sensors working? Does the compass work properly while on the stand?
How much would you say this cost in total? $50?
gqskrub said:
How much would you say this cost in total? $50?
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Click to collapse
Yeah. About that I'd say
Necro-posting...
When the phone back cover was open, did it look like there was enough room to install a metal ring, for use with current magnetic phone holders (Qi chargers)? I have to open the case to replace the battery and figured I might try a magnetic Qi mount as well (easier to rotate from portrait to landscape without a large plastic exo-frame). It's that, or use a thin cover and put the ring between the phone and the accessory cover (I have the ballistic nylon back).
Motorola Moto G 2015 3rd Gen Disassembly/Teardown Video
https://www.youtube.com/watch?v=cvTeI4pdkak
Amazing! Liked the usb port easy replace part! Thanks for sharing!
Sent from my GT-I9300 using Tapatalk
nelsonw said:
Amazing! Liked the usb port easy replace part! Thanks for sharing!
Sent from my GT-I9300 using Tapatalk
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Click to collapse
Also replacing the audio jack is fairly easy, since you do not have to desolder it.
What brand and model # is your heat gun? Video was very good thanks
nelsonw said:
Amazing! Liked the usb port easy replace part! Thanks for sharing!
Sent from my GT-I9300 using Tapatalk
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Click to collapse
Absolutely!!! That's a HUGE plus!!
Super sweet! I don't have sound on this computer, (at work), but did they mention about water resistance integrity after reassembly it?
It might be that it's still waterproof but I wouldn't count on it. Especially the display is sealed against water with some sort of taker and its hard to impossible to disassemble the moto g without damaging this tape.
But I have another question. The original Motorola screen has a foil glued on the display to seal the speaker holes against water. Does anybody know with what those foils could be replaced for a non OEM screen?
fritz314 said:
It might be that it's still waterproof but I wouldn't count on it. Especially the display is sealed against water with some sort of taker and its hard to impossible to disassemble the moto g without damaging this tape.
But I have another question. The original Motorola screen has a foil glued on the display to seal the speaker holes against water. Does anybody know with what those foils could be replaced for a non OEM screen?
Click to expand...
Click to collapse
I would guess that it's extremely thin since it tears so easily. You can buy that stuff but what I've seen is in amounts that would probably do every G3 made. That would make it half the cost of the phone. I've never searched for small amounts but it may be available.
Sent from my SM-T530NU using Tapatalk
fritz314 said:
It might be that it's still waterproof but I wouldn't count on it. Especially the display is sealed against water with some sort of taker and its hard to impossible to disassemble the moto g without damaging this tape.
But I have another question. The original Motorola screen has a foil glued on the display to seal the speaker holes against water. Does anybody know with what those foils could be replaced for a non OEM screen?
Click to expand...
Click to collapse
I had the same thought about a week ago while watching a tear down for another device. I wonder if there's some sort of 3rd party material we could use that would be stronger. I really don't like tearing down a device working perfectly, but if it improves the integrity of the device I'm all for it. I see that the same way as I do an xbox 360 motherboard fix. Sometimes the OEM doesn't make the best choices in material.
I've seen foil where the thickness is measured in microns, but it's so expensive. The best bet would be trying to get a sample.
Sent from my SM-T530NU using Tapatalk
Thanks for the replies!
It kind of would have to be thin enough to not alter the sound in any way.
Probably a stupid idea, but what about using this adhesive tape (aliexpress: 10mm*25M Strong Acrylic Adhesive PET Red Film Clear Double Sided Tape No Trace for Phone LCD Screen) (I can't post links yet... :/) instead?
Then cut out the adhesive at the whole for the speaker so there is only the thin foil which covers the adhesive left. What do you think about that?
Furthermore, do you think this adhesive tape (aliexpress: New Brand 1mm Double Side Adhesive 3M Sticker Tape Repair Fr Cellphone Touch Screen NEW) would be suitable to glue the screen back in place?
Thanks!
Does nobody have an opinion on that?
Otherwise I'll just try and then report if it worked. Even if the sounds get a little bit more dull the water resistance is worth it to me.
Typically the issue on our phones is that the magnetic port pulls out after a lot of use. I had this and I superglued that sucker back in. Now, I have a whole new issue. One of the little nubs with the metal contact completely came off! I seriously have no idea how they could have happened. It's hard to describe but I'll take a picture when I can to show this. The annoying thing is that I superglued this one in very well. I would have to seriously risk breaking more things to pry this one off to replace it! Despite no update to marshmallow (D6616) and these crazy build issues I still don't see a compelling new phone to replace this one -_-.
Pics. Initially, the little metal circle was gone. I scraped away the rest of the little black circle to expose the little bit of metal that is still sticking out. I can still use the magnetic charging port as long as I carefully attach it in a way that the little metal piece makes contact with the charger.
Please make a photo of your magnetic cable connector too
When the microphone of my z3 broke, the service changed all the frame of my mobile.
i was so happy, my old magnetic charging port was very worn out (almost like your picture)
I blame users using cheap magnetic cables bought from ebay and amazon because of this. Magnets can be super strong, strong, medium, and weak. Mine has been fine since owning the phone Dec 2014. I use the Sony magnetic dock and always charge on it. The only problem I have is that it needs a backbone to charge because DUE TO MY FAULT, when the phone dropped, it bent the trim area of the magnetic port.
People always need to point fingers at everyone besides themselves.
lvlonkey said:
Pics. Initially, the little metal circle was gone. I scraped away the rest of the little black circle to expose the little bit of metal that is still sticking out. I can still use the magnetic charging port as long as I carefully attach it in a way that the little metal piece makes contact with the charger.
Click to expand...
Click to collapse
By the condition of your phone from the pics you posted I'm not surprised. I have 2 magnetic chargers and non have this issue. The magnets are relatively weak - just strong enough to hold the cable to th phone while moving it around - and I've not experienced any issues although my charging port doesn't look near as haggard as the ops.
Sent from my D6603 using Tapatalk
I use the magnector connector which is what initially caused my magnetic port to pull out. My magnetic port looks all jacked up because I superglued the port back in but got messy with the glue and had to scrape some off. Anyways despite how messed up my magnetic port looks, the rest of my phone is actually pretty much in new condition. I have had it in a case all its life and a glass screen protector.
I will be using this thread to track my upgrade of the amplifier chip on the Intel Sofia based Joying units.
I chose the Pioneer PA2030A but apparently you can also use the TDA7850 chip.
To quote @kampfschachtel:
If your speakers are 4 ohm I would use the Pioneer as it has more power at 4 ohm, if you have 2 ohm speakers (like eg a lot of the BMW ones) then the TDA7850 is your choice. Be aware you get orginals as they are lot low quality clones on the market.
Joying radio and new Pioneer PA2030A chip
You can see in the back where the amp chip is anchored in the metal frame with two screws. The metal frame provides some cooling.
First step: take unit apart using the 2 screws - 1 on each side. At this step, say goodbye to your warranty!
1 more screws on the back and then you can take the top cover off
Behold! The internals!
Slide up the 2 USB cables from the frame and carefully disconnect the single USB cable from the board, the ribbon cable from the motherboard (which takes video and touch input to the screen) and then on the back, unscrew the GPS antenna from the frame. The other bundle of mic, radio antenna and USB cable just keep as is, as it's more work to untangle the wires.
NOTE! The ribbon cable uses a slide-lock to keep the cable in. Carefully pull the brown slider back and then remove the ribbon from the slot. Don't force it or you may damage it and will need to get a new ribbon.
Your can see the cables that were removed.
Next remove the following 4 screws and also the smaller 2 screws holding the amp chip to the frame
You can see the metal bracket that holds the amp chip falls off. Notice in the back, that the amp chip is held to the frame with some thermal paste. We'll need some more of that later when the chip is replaced.
Remove 2 more bolts that hold the motherboard - on the corners. 1 you can see where my screwdriver is resting.
Carefully pry out the board from the case.
You can see the chip we'll replace and the solders in the back that we'll have to work with.
NOTE: interesting marking on the board - PX3-MAIN. Other folks might know more on this, but did they re-use the main host board from their other stereos with minor modifications? Looks like it.
Next step - warm up the solder gun!
Time to go find my solder gun... dammit! Where did I put it? Haha!
You're going to want to pay attention to how high the chip sits on the board as the new one will have to be at a similar height to bolt back to the metal frame.
---removed---
Another side note... It looks like the SD card reader board has space for another SD card reader slot. If one wants dual SD card, maybe another soldering project down the line? The metal frame is also pre-cut for the second slot so it would be an easy project!
Making slow progress on removing the chip. A nice solder sucker would be great right now!
It looks easy, but that soldering looks the most difficult part of the job, how can you loose it with so many pins on the board, and i suppose you can do that by every chinese android radio?
Flemischguy said:
It looks easy, but that soldering looks the most difficult part of the job, how can you loose it with so many pins on the board, and i suppose you can do that by every chinese android radio?
Click to expand...
Click to collapse
You take your time Slowly heat up pins and you go around to each pin... over and over again.
bogdi1988 said:
You take your time Slowly heat up pins and you go around to each pin... over and over again.
Click to expand...
Click to collapse
Do you use a classic soldering on electric? I think that i would use a soldering on gas, which is instantly hot and blow hot air over the pins (and faster)
Just a thought
So I got the chip soldered. Ran a quick test and got audio, but the channels are all over the place. Gotta trace all my solders to make sure I didn't mess up anything.
Flemischguy said:
Do you use a classic soldering on electric? I think that i would use a soldering on gas, which is instantly hot and blow hot air over the pins (and faster)
Just a thought
Click to expand...
Click to collapse
Yea, I did use a classic one.
I might have to re-do all solders.
Well, until I figure out my solder stuff... feedback on what I was able to test as it was.
Audio was significantly more powerful! Quite a difference! I'll spend some more time on this over the next couple days.
It is a tricky mod, but worth it!
I think my chip might be faulty so I got a new one coming in next week. I'll update this post next week when I get it