Hi all.
Im hoping someone can help me out.
In the process of building the wireless charging hack for the htc desire and the prototype works fine.
However at the moment i have connected the induction coil circuit to a micro usb plug which then plugs into the desire. This is an ugly solution!
I would rather solder the induction coil circuit straight to the circuit board but am having trouble identifying where to connect to.
Has anyone looked into this and able to show me a +5v solder point on the board near the micro usb socket?
Appreciate the help.
Hi all.
Sat down with my multimeter and the desire in several pieces! Lol.
Finally found the contact points on the main board for the micro usb power.
Have now attached the induction coil to the phone main board and slipped the back cover back on.
Now I have a a desire with wireless charging using the palm touchstone but still retaining the ability to charge via the micro usb if needed!
I love the desire so much! is there nothing you cant do?
tanv28 said:
Hi all.
Sat down with my multimeter and the desire in several pieces! Lol.
Finally found the contact points on the main board for the micro usb power.
Have now attached the induction coil to the phone main board and slipped the back cover back on.
Now I have a a desire with wireless charging using the palm touchstone but still retaining the ability to charge via the micro usb if needed!
I love the desire so much! is there nothing you cant do?
Click to expand...
Click to collapse
You going to post some pictures of that ???
Pics
duryard said:
You going to post some pictures of that ???
Click to expand...
Click to collapse
Good idea!
I spent ages trying to build a slim line micro-usb plug that could easily plug in and out if I needed to charge away from a touchstone but it was not very pretty and in my frustration I took apart the phone trying to find a points on the board instead! Initially I was planning on soldering to the micro usb +5v pin but that was way to hard so instead I searched for a contact on the pcb and eventually found one.
From the outside, the phone doesn't look any different from any other desire which I prefer.
Here are some pics. I can't take pics of the internals as I've put it all back together now and don't fancy the risk of breaking the tiny wires!
Attached some pics though as requested.
Nice project
Sent from my HTC Desire using XDA App
hi , i was thinking of doing this , when i got my phone apart i noticed two holes in the plastic that covers the microusb with two gold contact underneath, are these ground and 5+ i would check but my multi meter is bust
Hi,
this project is great and I also want to build this.
Could you please indicate the appropriate contacts which you used on one of these pictures:
http://blog.afkbio.de/index.php/uncategorized/anleitung-fur-displaytausch-bei-htc-desire-teil-3/
Did the copper coil together with the PCB (there is a PCB needed, I guess) easily fit into the HTC Desire casing? I tried to fit 5 sheets of paper there but couldn't close the case afterwards.
Do you have any more details? Will the Desire hold on the Touchstone or did you add magnets somewhere?
Hi.
Regarding the contacts, I used the 0v of the microusb socket.
The part of the pcb i soldered the +v to is not shown in those pics but if you look at pic 7, there is a square contact on the hidden side of the pcb connected to the microusb socket at the bottom of the phone. That is what i used.
I found that the case fits on fine and the phone is held on ok to the touchstone without any additional magnets but maybe that could be strengthened by thinning down the backcase a little.
i hope that makes sense. very hard to describe without pictures! i wish i had taken some when i did the mod!
I asked because I was afraid that I would need a "bigger" back cover as used by some extended batteries for the Desire. So you just extracted the coil from the Pal Pre backcover together with the board and put it on top of the regular Desire battery?
mikey887 said:
hi , i was thinking of doing this , when i got my phone apart i noticed two holes in the plastic that covers the microusb with two gold contact underneath, are these ground and 5+ i would check but my multi meter is bust
Click to expand...
Click to collapse
If you are talking about the ones to the left of the battery (the only ones i could find) thats +2.6V
Does it work through a case? Such as otterbox commuter?
con247 said:
Does it work through a case? Such as otterbox commuter?
Click to expand...
Click to collapse
I'll find out tonight, i'm going to destroy a powermatt cube and give this mod a shot.
Ok, so now I got my hands on a backplate and a touchstone and already disassembled the stuff.
The point is that I still need to know where to solder the 5V. How can I measure the various golden points? I have a multimeter, but where do I probe the black (mass) pin and where the red one (sample)???
I'm a little confused.
Anyone know where to find angled power connector. I been search from forum to forum. Could not able to find one right/left angled power connector.
Another thing is Nokia charger have same connector ?
Something like this
http://www.sz-promo.com/cn-img/628/656cnal2/incar-charger-713.jpg
Bump and another question
Anyone know what is the 2 gold connected beside the charger ?
The two gold contacts on the bottom of the Xoom are the charging points that the docking stations use to charge the Xoom.
I've been wondering the same thing. I'd love to use my stand and charge at the same time.
muzz3256 said:
I've been wondering the same thing. I'd love to use my stand and charge at the same time.
Click to expand...
Click to collapse
Yes, PLEASE. Anyone locate an L shaped or elbow shaped charging tip?
anyone know where to find a right angle / 90 degree charging adapter?
Im trying to find a charger which isnt that big as the original one. and i would prefer a angled as well.
Bump. TIred of the cable getting in my way when I have it angled on my lap. I really wish the charger port was on the side.
Many "universal" power adapters (with the different sized attachable tips and the adjustable voltage on the transformer) are already angled. I'm using one for a media player in my living room but I can't find the other tips!
Check it out here:
Code:
http://www.hosatech.com/product/339720/ACD-477/_/Universal_Power_Adaptor%2C_Selectable_up_to_12_VDC_1200_mA
If anyone knows what the official name or measurement of the tiny tip that plugs into the xoom is it would be a great start to searching ebay for a generic adapter. The stock motorola xoom adapter outputs 12V @ 1.5 Amps, the one I linked to is only 1.2 Amps so probably wont charge the xoom very well, and unfortunately I'm pretty sure this is the one I have at home.
EDIT:
Code:
http://www.parts-express.com/pe/showdetl.cfm?partnumber=120-150
Rated at 1.7 Amps, this should work just fine as going higher in amps is harmless. The question however is if one of those tips will fit...
For what it's worth, I'm using a 12v 1.2A power adaptor I had knocking around with a 'large-DC-jack-to-Xoom plug' adaptor I bought on ebay. It seems to work and charge fine. Sadly it's a straight lead though.
Adaptor lead URL: http://pages.ebay.com/link/?nav=item.view&id=370645755757
Hi,
My made-in-china docking station has just arrived, unfortunately its already been broken (quality material of a matchbox :\),
I have plugged in my micro usb into the socket (female micro usb on the dock) and somehow after few tests the female receiver of the dock fell out.. (I guess it wasn't glued strong enough because I haven't use any extra power to push it in)
Any way.. I have opened it up to see whats going on and found this:
http://img841.imageshack.us/img841/9554/a84p.jpg
The small piece on the left is the female micro usb plugger that was attached to the green board but fell off..
This is a sort of explanation:
http://img856.imageshack.us/img856/2971/4wbl.jpg
And thats the part it self:
http://img43.imageshack.us/img43/8735/ew44.jpg
Unfortunately I can't glue it back and definately not weld it on since its too tiny and I don't have proper equipment for that..
But I do want to try to fix it because god damn its 1 day old ! totally brand new!
So I was thinking maybe I should simply tear a cable and plug the + - to the red and black wires at the end of that board..
And so, here comes the question for you expert fellers.
First this is the board:
http://img856.imageshack.us/img856/8915/xo1u.jpg
I have a basic knowledge in electricity but its from engineering study and not from real world, so I don't really know how to read this thing..
Perhaps a better intuition than mines will help too..
Is this board necessary? What does it do? and can't it live with out it?
Why they didn't simply plug the + and - straight to the + - pins of the docking points?
Because thats what I am willing to do but I guess that "Ask the experts before you ruin it" is a helpful tip my mom taught me..
Thanks!
Jordan.
I'm curious about this too. I'm in the same boat as you: basic knowledge but not too much real world experience. So, I can't tell you what the board does, but maybe we can figure some things out and perhaps someone with more knowledge will chime in eventually.
I can at least answer (I think) why you don't just have a red and black wire going to the point where the phone docks: you have data too (assuming the dock does data as well as charge). Those are the green and white wires in USB.
Well actually I have already figured out out..
First of all there is no data..
You can't minimize 4 cables to 2, its not possible in any way..
Those two pins are for charge only..
The board is for security defense, if you plug into it something with high voltage, it shuts it down or something.. Or transfor only the needed voltage and ampher (5v and 1A for me)..
Any way I cutted out that board and opened up a micro usb cable on the microusb side, attatched the red (+) to the dock's red and the brown (could also be white blue or somwthing, check it out to be sure) to the dock's white (-), closed every thing nice and tight, plugged the usb to charger with 1 ampher output, and it worked..
My phone is getting charged nicely and showing up Docking signal as well..
I'm not sure what exactly this board does and if its useless or not, but it sure ain't must..
Good luck!
Sent from my C6603 using xda premium
Makes sense. I kind of expected there to be no data (hence why I made the comment about it ) Glad you figured it out!
So I'm looking into the possibility of making a wireless charging solution on my own. I have lots of wireless chargers at home, work, in the car, and I would really benefit from getting wireless charging working.
I took a USB Qi charging coil and soldered wires, which I then attached (well, just touched ) to either end of the magnetic connector, and it worked.
The difficulty I'm facing is, how can I keep these wires touching the magnetic charging port semi-permanently without doing anything dangerous like attempting to solder it directly.
So I'm wondering if anyone has any neat ideas of how I might rig this up. Any ideas would help a lot! If I come up with something good, I'll make a guide so others can do it.
You could try to get someone to 3D print a side piece similar to the one on the Z3 wireless charging case from sony: http://www.sonymobile.com/us/products/accessories/wireless-charging-cover-wcr14/
Have them leave chambers to run the wire through.
JCBomb said:
You could try to get someone to 3D print a side piece similar to the one on the Z3 wireless charging case from sony: http://www.sonymobile.com/us/products/accessories/wireless-charging-cover-wcr14/
Have them leave chambers to run the wire through.
Click to expand...
Click to collapse
I've been thinking about making my own wireless charging case similar to the sony branded case but using high quality leather, and an oem qi charging circuit with a 3d printed base clip with the circuit connectors integrated into the clip, just to ensure constant connectivity.
just looking into prices for scrap leather now.
duraaraa said:
So I'm looking into the possibility of making a wireless charging solution on my own. I have lots of wireless chargers at home, work, in the car, and I would really benefit from getting wireless charging working.
I took a USB Qi charging coil and soldered wires, which I then attached (well, just touched ) to either end of the magnetic connector, and it worked.
The difficulty I'm facing is, how can I keep these wires touching the magnetic charging port semi-permanently without doing anything dangerous like attempting to solder it directly.
So I'm wondering if anyone has any neat ideas of how I might rig this up. Any ideas would help a lot! If I come up with something good, I'll make a guide so others can do it.
Click to expand...
Click to collapse
Have you tried tape? It would be covered up by your case anyway, right?
PuffDaddy_d said:
Have you tried tape? It would be covered up by your case anyway, right?
Click to expand...
Click to collapse
I've thought of tape but I've yet to figure out a way to tape it where it will definitely stay in place.
I might be able to get a case that would cover it, but my current cases have holes so that magnetic chargers could be plugged in.
I've decided to try using copper tape to connect a Qi coil to the magnetic dock port. I'll see how it goes. Hopefully it will be as easy as I'm hoping it will be.
So I finally managed to make it work. Unfortunately, I had to solder.
I gave up with trying to line things up just right and keep it in place, so I just soldered a Qi receiver to the magnetic charging port, wrapped it around to the back of the phone, and fit in a case. It charges wirelessly now, so I'm happy. Unfortunately, I don't know if I'll ever be able to clean it up in the future if I want to sell the phone. But to me, wireless charging was super important. I was also able to continue using my Z1C battery case which uses the magnetic port, so I'm pretty happy with the end result.
Pics?
it's ugly, but I'll put up pics when I get a chance.
Pictures as promised. I had been concerned adding this might block NFC, but NFC works just fine. Obviously, magnetic charging cables don't work (but a Z1C charging case I have does.)
It adds some thickness behind it so the case doesn't fit quite perfectly, but well enough to stay on. I didn't have thinner cables, but having some might have been able to decrease the thickness. Also, I'm not necessarily good at soldering, so I just did what I could.
But I can charge it on my bedside table and in my iOttie Qi dock in my car, so I'm cool with it.
hmm not pretty, but i guess it works. how is the charging speed?
you should be able to clean it up fine if you use some solder wick.
Awesome job!
Can you please give us a link for the receiver?
All I can find are with usb
ugly doesn't even start describing it... seriously, you ruined that phone. You could've cannibalized a 3rd party docking station instead
duraaraa,
Thanks for blazing this trail for us, mighty brave to solder to your phone like that! Now that you've had this set up for a few weeks, is it holding up ok? I'd just about give my left nut for an actual phone case that simply has a wireless receiver built in and taps into the magnetic charger pins, but I doubt anyone will ever make one since (I believe) the Z3C is discontinued. I mean, they make those giant external battery packs for the Z3C that use the pins, so why not a qi-compatible one??? Anyway, no way I'm soldering to my pins so I'm basically trying to mold a connector out of epoxy that I can squeeze between the side of the case and the pins. (Basically I pushed one of my magnetic cable connectors into a clay bar and filled w/epoxy.) It's still drying so I have no idea if it's feasible at all, but wanted to pop in and say thanks for the inspiration.
mralexsays said:
duraaraa,
Thanks for blazing this trail for us, mighty brave to solder to your phone like that! Now that you've had this set up for a few weeks, is it holding up ok? I'd just about give my left nut for an actual phone case that simply has a wireless receiver built in and taps into the magnetic charger pins, but I doubt anyone will ever make one since (I believe) the Z3C is discontinued. I mean, they make those giant external battery packs for the Z3C that use the pins, so why not a qi-compatible one??? Anyway, no way I'm soldering to my pins so I'm basically trying to mold a connector out of epoxy that I can squeeze between the side of the case and the pins. (Basically I pushed one of my magnetic cable connectors into a clay bar and filled w/epoxy.) It's still drying so I have no idea if it's feasible at all, but wanted to pop in and say thanks for the inspiration.
Click to expand...
Click to collapse
hows your build coming along mate I'd love to see how it looks.
kstanley7 said:
hows your build coming along mate I'd love to see how it looks.
Click to expand...
Click to collapse
Not good I'm afraid my friend... My first attempt (trying to mold a connector out of epoxy using a clay mold) failed, the thing came out looking like a chewed up piece of gum and just wouldn't work. My next attempt involved slicing up a couple of cheap magnetic adapters and cables to try to trim down the connectors to something reasonably sized, but they become really brittle when you cut them that thin... Unfortunately, I think it'd take someone with some type of plastic molding equipment or maybe a 3d printer (that is capable of making really small, fine-detail parts) to make this thing. I'm still disappointed that Sony makes a wireless case for the Z3, but not the Z3C, but I've also come to realize that the Z3C has such good battery life that maybe I don't really need such a case. (I come from a long line of Nexus, HTC, and Samsung devices so I've become somewhat of a charging addict!)
tl;dr: Just enjoy the Z3C and use the handy magnetic dock for overnight charging.
just looking at the magnetic connectors on the z3c I think there might be a way but it'll add a couple more mm to the height, would need to get someone with a 3d printer, but if the wallet is made of leather and is inserted underneath, with the qi wireless pad, and two wires made into connection terminals which would then clip onto the phone so a solid connection is made between those terminals.
Just to answer some questions, it's held up. I think it's fine -- anyone desperate for Qi should just bite the bullet and solder. Charging speed is similar to really any other Qi-charged device.
apis10 said:
Awesome job!
Can you please give us a link for the receiver?
All I can find are with usb
Click to expand...
Click to collapse
Sorry my response is so late!
It's the USB type. I un-soldered the USB ribbon and soldered a wire for the two connections.
So you would want to buy the USB version, I think.
Look into copper tape. I attempted this a little while back but I think my charging pad wasn't powerful enough. What charging pad are you using?