Database Develop

[Q] Wireless Charging

Has anyone found the wireless charging accessories for this guy yet?

it's supposed to use the new wireless charging 'standard' so any pad with the same technology should work
e.g. from amazon, type in qi charger
http://www.amazon.com/Energizer-Qi-Enabled-Position-Inductive-Charger/dp/B0041RRORA/ref=pd_cp_e_1

Verizon sells the Wireless Charging Battery Cover.
I tried to paste the link but the Forum won't let me (not till after 8 posts anyways)...

Looks like the back cover is out of stock on Verizonwireless.com. Does anyone know or have heard of this cover working with a Palm Pre Touchstone? Thanks...

Well I got my wireless charging pad and back cover today. The back cover is twice as thick as the stock cover. I came from a Palm Pre so I have a bunch of touchstones. Unforunately, I can confirm that the revo wireless charing system is NOT compatible with the touchstone. The verizon charging pad seems to sense when the phone is near and turns on. The touchstone did not, so that is probably one of the problems. I measured the voltage from the back of the touchstone cover and it wasaround 5.1 Volts. I am hoping I can use the touchstone coil on the stock cover of my revo and wire the charging leads to the revo. The revo has 4 pins for charging but the touchstone only has two, so I need to find out how to wire this. i may have to go through the USB 5V connection. I love my touchstone car mount and I am really hoping to be able to use the touchstones for charging the Revo.

Wireless charging pad: http://www.verizonwireless.com/b2c/...ryDetails&archetypeId=12659&accessoryId=47605
Wireless charging battery cover: http://www.verizonwireless.com/b2c/...ryDetails&archetypeId=12644&accessoryId=47587
Also, gsxrpilot would you say the wireless charging it worth it? for the almost 100 bucks you spend on it? and does gsxrpilot mean you ride a gsxr street bike?

Well there is a deal this month where you get the back free with the pad, so $70 for both. I got a little more discount because I complained that the only reason I needed a new phone and wireless charger is because my Palm Pre stopped working. I would say that it is worth the convenience. Constantly plugging in the micro usb charger due to the low battery life gets old. Now if I can get my touchstones to work, it will really be worth it.
And yes I have a '92 GSXR-750 and love to fly RC Planes and Helis, hence gsxrpilot.

gsxrpilot said:
Well there is a deal this month where you get the back free with the pad, so $70 for both. I got a little more discount because I complained that the only reason I needed a new phone and wireless charger is because my Palm Pre stopped working. I would say that it is worth the convenience. Constantly plugging in the micro usb charger due to the low battery life gets old. Now if I can get my touchstones to work, it will really be worth it.
And yes I have a '92 GSXR-750 and love to fly RC Planes and Helis, hence gsxrpilot.
Click to expand...
Click to collapse
I might have to get that then. Also, that's sick. My neighbor has a 20xx dsxr 750. They are a blast to ride.

Couple of gripes about this...
I bought the Wireless charging back for my Revo and it's not compatible with the Powermat that I already have, apparently the "qi" technology works differently than the induction that the Powermat uses. It IS compatible with the Energizer power mat which uses the same "qi" technology. but you're looking at the same price for either charging base.
Secondly, the wireless charging cover is twice as thick as the stock cover so any skins or cases you want to get for the phone will not fit. My silicon cover almost fits but buldges out on the sides.
I still think wireless charging is the way to go, just a heads up for those of you who are looking into this.

Well I got my touchstone to work with my Revo! I scraped the charging coil from the back of a palm pre cover (bought 2 for less than $5), then hot glued it on the back of my stock revo cover. I had to dremel 4 holes where the metal disks were and added 2 disks per hole since the revo is heavier than the pre and more disks help it stay on the touchstone better. I now have 4 little bumps on the back of my cover. I searched everywhere for the connector that would fit in the stock cover but couldn't find it. So I wound up using magnet wire and soldering directly to the charging tabs on the coil and the top of the connectors on the phone. Didn't have to use too much solder so I could remove the wires if I wanted to go back to the verizon charger. It is nice having the stock cover back, the verizon wireless cover was so much thicker.

gsxrpilot said:
Well I got my touchstone to work with my Revo! I scraped the charging coil from the back of a palm pre cover (bought 2 for less than $5), then hot glued it on the back of my stock revo cover. I had to dremel 4 holes where the metal disks were and added 2 disks per hole since the revo is heavier than the pre and more disks help it stay on the touchstone better. I now have 4 little bumps on the back of my cover. I searched everywhere for the connector that would fit in the stock cover but couldn't find it. So I wound up using magnet wire and soldering directly to the charging tabs on the coil and the top of the connectors on the phone. Didn't have to use too much solder so I could remove the wires if I wanted to go back to the verizon charger. It is nice having the stock cover back, the verizon wireless cover was so much thicker.
Click to expand...
Click to collapse
Any way you could post a picture? I'm interested to see if that setup would work for my powermat.

OK,I think I attached the picture correctly. I did the following:
1. Remove the charging sticker and assembly from the back of the Palm Pre charging cover. Do not use the Pixi charging cover assembly, there is a ribbon in it that cannot be re-assembled after removal.
2. I took my dremel tool and routed some space off the inside back of the cover. The revolution cover is a bit thicker than the pre cover and I was concerned it might be too thick to allow the inductive power through.
3. I also routed some indentations in the back of the cover. (see Phone Back Image) I'm not sure if this was necessary either but I had really hoped I could mount the phone vertically on the touchstone in my car like the pre so i put a second set of metal disks behind the indentations. As it turned out, the revo is much heavier than the pre so this didn't work.
4. I glued the sticker and assembly to the back of the stock cover. First I tried crazy glue which didn't work that well so I wound up using hot glue.
5. Finally I soldered magnet wire from the palm charging tabs to the wireless charging tabs. Top tab to the top charging post (there are 4 of these posts, I only used two) and bottom to bottom. The top tab and post is ground, the bottom tab and post are +5V. (see Phone Inside 2 image)
6. I snapped the cover on (there is still a small gap which I haven't quite worked out yet but it works ok). Stick it on the touchstone and it says "wireless Charging" (which is actually annoying and I thought I had figured a way to remove this notification but it came back)
Now all of my touchstones work for charging and I am not sure I will ever go back to the verizon wireless charger.

gsxrpilot said:
OK,I think I attached the picture correctly. I did the following:
1. Remove the charging sticker and assembly from the back of the Palm Pre charging cover. Do not use the Pixi charging cover assembly, there is a ribbon in it that cannot be re-assembled after removal.
2. I took my dremel tool and routed some space off the inside back of the cover. The revolution cover is a bit thicker than the pre cover and I was concerned it might be too thick to allow the inductive power through.
3. I also routed some indentations in the back of the cover. (see Phone Back Image) I'm not sure if this was necessary either but I had really hoped I could mount the phone vertically on the touchstone in my car like the pre so i put a second set of metal disks behind the indentations. As it turned out, the revo is much heavier than the pre so this didn't work.
4. I glued the sticker and assembly to the back of the stock cover. First I tried crazy glue which didn't work that well so I wound up using hot glue.
5. Finally I soldered magnet wire from the palm charging tabs to the wireless charging tabs. Top tab to the top charging post (there are 4 of these posts, I only used two) and bottom to bottom. The top tab and post is ground, the bottom tab and post are +5V. (see Phone Inside 2 image)
6. I snapped the cover on (there is still a small gap which I haven't quite worked out yet but it works ok). Stick it on the touchstone and it says "wireless Charging" (which is actually annoying and I thought I had figured a way to remove this notification but it came back)
Now all of my touchstones work for charging and I am not sure I will ever go back to the verizon wireless charger.
Click to expand...
Click to collapse
awesome stuff, I will definitely give this a shot and post results.
Sent from my VS910 4G using XDA App

nice hack.....looks like your method could work on most any accessory case

how long would it take to charge the revo?

Charging probably takes slightly longer than through the USB port. The phone can get a little warm too but I have never had a problem. It's really convenient in the car where I glued the touchstone to my center console. If you have ever tried to drive while plugging in the tiny usb cable you will know what I am speaking about.

wireless charging mod (s4 ACTIVE)

Heres the backround on what i did to get wireless charging going...
1) get palm coil and touchstone. i bought this on ebay for 10$ (just search touchstone charging kit)
2) carefully remove the coil from the back cover of the palm phone. plastic cover first then the rest.
3) what worked easiest for me was to keep all the coil stuff stuck to the removable plastic piece holding everything together, then you can simply stick it in the back of our active covers. (make sure when moving the magnets all the positive sides are facing towards the dock)
4) Connecting it. I tried doing this a couple different ways and i eventually ended up pulling tiny copper wire out of computer speaker cable and used it like a twist tie on the phone terminals (then small amount of electrical tape to separate them...which worked out fine)*I attempted to do the same on the coil side of the connection but that was a bust so i ended up soldering it.. not my first choice but since its on the palm coil not my active I did it.*
5) you should be all good to go at this point
here are some pics too and of course if you some of mess your phone up...its not my fault
Video- http://www.youtube.com/watch?v=BvO01b1CKBk
feel free to pm if ya got a question me... I am leaving the country tomorrow night for a week, but ill try to get back to ya
happy modding
in the picture with highlighting yellow goes to left phone terminal(positive) and brown goes to right teminal (negative)

bdgarel said:
Heres the backround on what i did to get wireless charging going...
1) get palm coil and touchstone. i bought this on ebay for 10$ (just search touchstone charging kit)
2) carefully remove the coil from the back cover of the palm phone. plastic cover first then the rest.
3) what worked easiest for me was to keep all the coil stuff stuck to the removable plastic piece holding everything together, then you can simply stick it in the back of our active covers. (make sure when moving the magnets all the positive sides are facing towards the dock)
4) Connecting it. I tried doing this a couple different ways and i eventually ended up pulling tiny copper wire out of computer speaker cable and used it like a twist tie on the phone terminals (then small amount of electrical tape to separate them...which worked out fine)*I attempted to do the same on the coil side of the connection but that was a bust so i ended up soldering it.. not my first choice but since its on the palm coil not my active I did it.*
5) you should be all good to go at this point
here are some pics too and of course if you some of mess your phone up...its not my fault
Video- http://www.youtube.com/watch?v=BvO01b1CKBk
feel free to pm if ya got a question me... I am leaving the country tomorrow night for a week, but ill try to get back to ya
happy modding
in the picture with highlighting yellow goes to left phone terminal and brown goes to right
Click to expand...
Click to collapse
This video seems very helpful with the process, just wish i knew which side was pos and which is neg http://www.youtube.com/watch?v=jHw1QIPwkZU
EDIT: i see the pics thank that helps!

joshuadjohnson22 said:
This video seems very helpful with the process, just wish i knew which side was pos and which is neg http://www.youtube.com/watch?v=jHw1QIPwkZU
EDIT: i see the pics thank that helps!
Click to expand...
Click to collapse
Use a multimeter...if you dont know how, you probably shouldn't attempt this hack and should wait for an aftermarket back plate to come out

Out of curiosity, how strong are these magnets? Am I going to have to make sure that my phone gets nowhere near my credit cards (and other magnetic cards, media, etc.)?

jt3 said:
Out of curiosity, how strong are these magnets? Am I going to have to make sure that my phone gets nowhere near my credit cards (and other magnetic cards, media, etc.)?
Click to expand...
Click to collapse
They are fairly strong but I have yet to have any issues with my cards...however I usually keep my phone in a separate pocket

Have you tested the phones waterproof capabilities since you did this mod? I love the idea, want to do it, but im on the fence, as it seems it would make it very easy to make the waterproofing gasket fail with a small wire.... on the other hand, you dont have to take the back off, or open the charging port, so if it doesn't void the waterproofing, it could be even better

Obviously, if any wire or any part of the wireless receiver protrudes over the seal, the water resistance will be compromised, but that's not the only issue.
In the back panel replacement sticker on the back of the S4A, it tells you to press under the camera LED. Pressing there engages the rubber seal. The issue is that any of these non-oem wireless receivers is going to slightly lift the central portion of the back away from the phone. Thus, even if no part of the seal-line is breached, I still wouldn't trust that the seal could engage fully.
Don't get me wrong... I'm going to do something similar, since I'd rather have wireless charging. Still... until an OEM wireless charging backplate comes from Samsung, I'd assume it's an either/or situation. Wireless charging OR water resistance.

jt3 said:
Obviously, if any wire or any part of the wireless receiver protrudes over the seal, the water resistance will be compromised, but that's not the only issue.
In the back panel replacement sticker on the back of the S4A, it tells you to press under the camera LED. Pressing there engages the rubber seal. The issue is that any of these non-oem wireless receivers is going to slightly lift the central portion of the back away from the phone. Thus, even if no part of the seal-line is breached, I still wouldn't trust that the seal could engage fully.
Don't get me wrong... I'm going to do something similar, since I'd rather have wireless charging. Still... until an OEM wireless charging backplate comes from Samsung, I'd assume it's an either/or situation. Wireless charging OR water resistance.
Click to expand...
Click to collapse
I will fix the wire issue by using copper tape. I'm excited to try it...

I am doing this mod tonight and I thought I would share some information.
See below for the information I have gathered:
Yellow lines = Copper tape- as you can tell it gets very cramped around the end because of the gasket. I may need to use a different path or wires like the OP. The important stuff to gather from this is which is positive and which is negative on both the phone and the palm pre touchstone.

Nice idea, curious to see how this works out.

Update
My copper tape has not arrived but I installed everything else. It does appear that the coil makes the rear housing push out which leads me to believe it will not do well to repel water away from the seal during extended use but I would prefer wireless charging
If you plan on using a case I would recommend ordering stronger magnets from supermagnets.com part number Disc - D1046. These should work well with any case and it will fit more snug because they are a lot stronger. I will update with photos once the copper tape is installed and everything is working.

Am I missing something? Why doesn't the Samsung wireless charging kit work or the wireless receiver tags you can get for the S4 so you can use a Qi charger?
Sent from my SGH-I337 using Tapatalk 2

holysnikey said:
Am I missing something? Why doesn't the Samsung wireless charging kit work or the wireless receiver tags you can get for the S4 so you can use a Qi charger?
Sent from my SGH-I337 using Tapatalk 2
Click to expand...
Click to collapse
The battery door is different. In theory it will work but you would have to figure out a way to gut the back plate and that would be a lot harder than palm's touchstone mod. Or just wait for the active's wireless back plate to be released. This is a lot cheaper IMO $10 vs $30-150

Ya I just realized this. But still do you think the wireless charger receiver tag could work? If you search on Amazon or Ebay "Galaxy S4 wireless charging receiver tag" there's the component which is stuck inside the back cover Samsung is selling. Except it can be bought for $10-20 and most likely can fit in the Active. I don't know because I have the original S4 but just trying to throw out some ideas. In theory if the tag works you can get it for $15 then use any Qi charger and you're good. While not quite as cheap it's only a few bucks more and much easier and looks way better probably. That is if it works of course.
Sent from my SGH-I337 using Tapatalk 2

holysnikey said:
Ya I just realized this. But still do you think the wireless charger receiver tag could work? If you search on Amazon or Ebay "Galaxy S4 wireless charging receiver tag" there's the component which is stuck inside the back cover Samsung is selling. Except it can be bought for $10-20 and most likely can fit in the Active. I don't know because I have the original S4 but just trying to throw out some ideas. In theory if the tag works you can get it for $15 then use any Qi charger and you're good. While not quite as cheap it's only a few bucks more and much easier and looks way better probably. That is if it works of course.
Sent from my SGH-I337 using Tapatalk 2
Click to expand...
Click to collapse
that would probably work... if i understand it correctly...

That's the image of what I'm talking about. The official back plate you buy from Samsung is just the battery door with that tag glued on the inside of the door.

holysnikey said:
That's the image of what I'm talking about. The official back plate you buy from Samsung is just the battery door with that tag glued on the inside of the door.
Click to expand...
Click to collapse
It probably will work but it will cost a lot more than this mod we are talking about. It will be a lot easier to install though

holysnikey said:
That's the image of what I'm talking about. The official back plate you buy from Samsung is just the battery door with that tag glued on the inside of the door.
Click to expand...
Click to collapse
I went ahead and order this 2, so we will see

joshuadjohnson22 said:
I went ahead and order this 2, so we will see
Click to expand...
Click to collapse
Same here. Amazon. 14.99

jdminpdx said:
Same here. Amazon. 14.99
Click to expand...
Click to collapse
I paid a little more because I wanted to get it this week. The cheaper ones come from China and may take a while. I now need a replacement back for my active, somehow with the palm mod one of my clips doesnt work any longer so under my volume rocker it is propped up. Excited to have wireless charging. Hopefully this week
Sent from my SAMSUNG-SGH-I537 using Tapatalk 4 Beta

Custom Car Mount!

Video explaining the setup: http://www.youtube.com/watch?v=uUiYrk_LPF4
Video in action: http://www.youtube.com/watch?v=XIya1NEXy4Y
Picture of the setup: http://i.imgur.com/cb3to1M.jpg
I was bored on a long weekend and decided that the universal car mounts with the arms (you know the ones I'm talking about - these pieces of junk http://i.imgur.com/f2zZcCs.jpg ) plus the necessity of plugging the phone in manually was ENTIRELY too much trouble.
Ok, not really... but that was my excuse for putting together a little DIY project!
It turns out that the LG WCP-300 wireless qi charger fits perfectly inside a gutted Schosche Vent Mount (this guy: http://i.imgur.com/rRpZO78.jpg ). I had to cut out quite a bit of little plastic pieces, but the charger is held very securely once the mount is gutted.
Next, I bolted a secure, flat platform to my A-pillar trim piece (the pillar to the left of the windshield) and mounted a flexible arm suction cup mount.
From there, I hard-wired a 2amp usb charger using a fuse-tap and ran the cable up through the dash and out between the A-pillar trim piece and the dashboard. This cable is plugged into the wireless qi charger.
So now, when I get in the car, I just set my phone on the charger, the magnets hold it securely in place, and it charges wirelessly!
It's totally awesome and is definitely the most expensive car mount I've ever had - but it's SO cool!
Total cost: Around $40 for the mount, another $40 for the LG WCP-300 wireless charger.

joe.cole1 said:
Video explaining the setup: http://www.youtube.com/watch?v=uUiYrk_LPF4
Video in action: http://www.youtube.com/watch?v=XIya1NEXy4Y
Picture of the setup: http://i.imgur.com/cb3to1M.jpg
I was bored on a long weekend and decided that the universal car mounts with the arms (you know the ones I'm talking about - these pieces of junk http://i.imgur.com/f2zZcCs.jpg ) plus the necessity of plugging the phone in manually was ENTIRELY too much trouble.
Ok, not really... but that was my excuse for putting together a little DIY project!
It turns out that the LG WCP-300 wireless qi charger fits perfectly inside a gutted Schosche Vent Mount (this guy: http://i.imgur.com/rRpZO78.jpg ). I had to cut out quite a bit of little plastic pieces, but the charger is held very securely once the mount is gutted.
Next, I bolted a secure, flat platform to my A-pillar trim piece (the pillar to the left of the windshield) and mounted a flexible arm suction cup mount.
From there, I hard-wired a 2amp usb charger using a fuse-tap and ran the cable up through the dash and out between the A-pillar trim piece and the dashboard. This cable is plugged into the wireless qi charger.
So now, when I get in the car, I just set my phone on the charger, the magnets hold it securely in place, and it charges wirelessly!
It's totally awesome and is definitely the most expensive car mount I've ever had - but it's SO cool!
Total cost: Around $40 for the mount, another $40 for the LG WCP-300 wireless charger.
Click to expand...
Click to collapse
Nicely done, looks really good, thanks for sharing

Joe.Cole1: What magnets? Are there magnets in the WCP-300?
I really like this idea.
Sent from my Galaxy Nexus using Tapatalk

SeanRinVA said:
Joe.Cole1: What magnets? Are there magnets in the WCP-300?
I really like this idea.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
I purchased some neodymium rare earth magnets from Home Depot. Not sure of the exact ones, but the ones on the phone mount are fairly large, while the ones inside the case are, by necessity, much smaller.
There are no magnets in the WCP-300 - I found that putting magnets on it - at least in my case - made charging not as consistent. It may have just been some other factor during my testing, but there you have it. The magnets are around the WCP-300 and around the wireless charging coils in the phone itself (I popped off the cover attempting to place the magnets inside the phone initially).
Hopefully that answers your question!

Very awesome man. I'd totally pay 100 bucks for that set up if a company made it like that. How much time from start to finish did it take you about?
Sent from my VS980 4G using Tapatalk 2

Mandroidified said:
Very awesome man. I'd totally pay 100 bucks for that set up if a company made it like that. How much time from start to finish did it take you about?
Sent from my VS980 4G using Tapatalk 2
Click to expand...
Click to collapse
I'd say it only took me an hour or two of solid work, but I was running to Home Depot and back over the course of a day and also testing/trying out different stuff before I found the solution that worked.
All-in-all, well worth the time/money!

Is ur Lg a wireless charger? I mean charged wirelessly
sent from your moms phone

93fuelslut said:
Is ur Lg a wireless charger? I mean charged wirelessly
sent from your moms phone
Click to expand...
Click to collapse
Yes, it's a Verizon Wireless LG G2 which has Qi wireless charging built-in.

What's your thoughts on this phone? I'm thinking of this or the moto x but I hear bad things abt this phone. So what's
Ur thoughts on this phone
sent from your moms phone

93fuelslut said:
What's your thoughts on this phone? I'm thinking of this or the moto x but I hear bad things abt this phone. So what's
Ur thoughts on this phone
sent from your moms phone
Click to expand...
Click to collapse
Nobody is going to see or want to reply to your question here. There are posts dedicated to the pros and cons of the phone elsewhere.

nice car mount dude. hope to get this one also.. :good:

do the magnets interfere with your gps/compass?

ronaldeang said:
do the magnets interfere with your gps/compass?
Click to expand...
Click to collapse
Great questions. The ONLY thing they interfere with is the compass... the phone always thinks it's pointing north. However, I only use navigation, and direction is determined by GPS, not by compass, so I don't notice the difference.

well nice try indeed.
but i have my doubts about those magnets corrupting the flash storage and the compass alignment during use. imagine s.o. putting stronger neodym there. that blows the electrons into space lol. also destroying the carinterior is bad ....

well nice try indeed.
but i have my doubts about those magnets corrupting the flash storage and the compass alignment during use. imagine s.o. putting stronger neodym there. that blows the electrons into space lol. also destroying the carinterior is bad ....
Click to expand...
Click to collapse
Well, it's a good thing he's not forcing this on the general public then. It's only one option. Looking forward to seeing your solution.
Thanks Devs. From my VZW G2.

V3r0x said:
well nice try indeed.
but i have my doubts about those magnets corrupting the flash storage and the compass alignment during use. imagine s.o. putting stronger neodym there. that blows the electrons into space lol. also destroying the carinterior is bad ....
Click to expand...
Click to collapse
Well, the car interior was not destroyed. I used a trim piece that costs $24 to replace.
If you could point me to a study or some proof that the magnets are bad for my phone, I will take them off in a heartbeat! As it is, I can deal with the compass not working.

I doubt these guys would be in business if magnets were bad for your phone. http://www.amazon.com/Cradle-less-Q...e=UTF8&qid=1382805684&sr=1-1&keywords=imagnet
Nice work OP.

joe.cole1 said:
Well, the car interior was not destroyed. I used a trim piece that costs $24 to replace.
If you could point me to a study or some proof that the magnets are bad for my phone, I will take them off in a heartbeat! As it is, I can deal with the compass not working.
Click to expand...
Click to collapse
well i dont know the physics behind very well, but i think when bad things come together and somebody uses a very heavy magnet the induction voltages could outrage and lead to misbehavior or destruction. but it seems like the have to be really strong to do even little damage.
But neodym magnets can of course cause severe damage to other sensors or metallic parts in the cellphone. Like the vibrator e.g. ... :silly: i think as long as the magnetic fields arent moved with high speeds nothing should happen to the flash memories.
the car interior wasnt destroyed ? didnt you cut or screw the A-pillar of the car ? ....

Look nice :good:

V3r0x said:
well i dont know the physics behind very well, but i think when bad things come together and somebody uses a very heavy magnet the induction voltages could outrage and lead to misbehavior or destruction. but it seems like the have to be really strong to do even little damage.
But neodym magnets can of course cause severe damage to other sensors or metallic parts in the cellphone. Like the vibrator e.g. ... :silly: i think as long as the magnetic fields arent moved with high speeds nothing should happen to the flash memories.
the car interior wasnt destroyed ? didnt you cut or screw the A-pillar of the car ? ....
Click to expand...
Click to collapse
I guess you missed it. Yes, I bolted it to the A-pillar TRIM PIECE, which, as I pointed out, is $24 to replace if I ever decide to get rid of it.
Not sure how magnets affect the phone in the long run (so far, nothing out of the ordinary), but I guess I'll be the pioneer and let y'all know if something goes wrong!

DIY Wireless charger for Droid4

Hi!
First, I'm sorry for English, I'm not professional.
A few days ago I made a working wireless charger for Motorola Droid 4.
What are the benefits?
People says, the original inductive charging cover is not compatible with most of cases.
Who live away from USA, can't use a wireless charger, becouse it is only available (officially) in the US. It is very hard to find on eBay or any other site. Almost impossible.
Very cheap. The original charging cover at US, Verzion is $29.99. (+ shipping, and need a person who ship it to me) It is only a cover, and we still need a charger as well.
So, I found a charging pad with and without receivers. There was a small problem. The receivers are only for Samsung Galaxy S3, S4 and Note. Their connectors aren't compatible with Droid 4, but the charging voltage is OK.
We need to take it to compatible with Droid 4. I looking for a long time, which one can I choose. Fortunately I made the right decision.
I bought that: Qi Inductive Wireless Charging Upgrade Kit for Samsung Galaxy S3
Link here
That is only for $30.10 with EU plug. The package include charging pad, usb cable, 1500mAh charger and S3 compatible receiver, and worldwide free shipping.
The size of receiver unit is compatible with free space of phone. We need some cutting but it isn't horrible.
First, I recommend you try, how fits the module in your phone.
Then mark with a felt.
The electrical connector pins are big, (and incompatible) we need to remove it carefully. I used a rework station with hot air (360°C) but you can use a medium sized soldering iron. I think, about 50-60W of power is enough. It took for about 30 secs per pin.
It is important, you need to place the receiver in such a manner, if you remove the back cover, the S3 and some other text need to be visible! Otherwise it will not work!
You see backside of the phone, and the camera is on top. Removed cover. In the right side, you can see four copper pins. The top row is irrelevant. We need tha bottom row. In the bottom row, on the left tere is the +5 V pin. On the right, there is a Ground pin.
We need to make contact between +5V pin of the phone and the +5V charging pin of the receiver unit.
Place the receiver unit to the phone, and see what size of copper wire you need. The lower pin of receiver unit is the +5V. We need to connect it.
I used a wire,1 mm in diameter. It is lacquered, I cycled down it from an electrical part (coil).
I think, that half millimeter in diameter is enough, but a found that, and it is recommended due to the relative high current (about 1A).
When you use thinner wire, you can easier take the cover to the phone.
So you need to solder wire to receiver's +5V pin. Please use the minimum quantity of soldering wire, becouse if you make a big knot there, you will have not enough place to take cover back.
When it is done, you can see how can you bend (or cut) the wire for best connectivity with phone's 5V pin.
Now you need to solder a wire to ground, like the previovus one, but not sure, that the two wore have enough space, and we can make easily short corcuit.
For this reason, we will use the iron cover of the SD card slot. This is a very good ground point.
So, one cable will go down, other is go up. They can fit and the soldering is more easy.
PLEASE BE CAREFUL! I recommend, before you make any electrical or hot operating you need to put an aluminium foil or an iron plate to top of the battery. I think to taking out battery and then in, is not easily possible, becouse after soldering there are the receiver. The battery can damage and explosive! The plastic parts of pohone can tolerate the heat for sort time! If you can not solder succesfuly, you need to wait while the parts cooling down! I recommend, use flux and/or high quality of soldering tin. Take out the SD Card! Please don't make short circuit!
It is not too difficult, but you need to be careful and attentive.
When the soldering done, you can try the charger.
Before you can take cover to phone, you need to cut the lower center of receiver. (you can see on the cover, exactly where. There are a claw and on the phone there ara a hole) Important! We need all of holes on phone, so the wires must not hang in to holes.
I cut the piece of receiver unit from lower left side, at the speaker.
Thats all. We are done. I think it longer to read than make :cyclops:
I made some pictures, I will mark these and upload in short time.
I'm going to measure the charging time with:
1,5A USB charger (direct cable)
1,5A USB charger with wireless charging pad
1,5A USB charger with wireless charging pad (phone in a 1 mm thickness of Trident case)
0,5A standard laptop USB (direct cable)
0,5A standard laptop USB with wireless charging pad
0,5A standard laptop USB with wireless charging pad (phone in a 1 mm thickness of Trident case)
I use that from 3 days ago. It works correctly. By the factory, the charging current is 1000mA with the 1,5A charger. About 66% of efficiency.
The USB charger's stand by consumption is 0,4W.
When the charging pad is connected and it is in stand by mode, the consumption is 0,98W
I'm going to bring images, and refresh the post, but here (Hungary, GMT +1) the time is am 2:31.
Good luck guys!
---------------------------------
Uploaded images,
here are the original, better quality images. (11.5MB zip)

That great way to charge the phone. i know that my usb plugin is getting a little wore out.......glad to know that there another way to charge up the phone in case of emergency. Congrats.

Hi,
thanks, it works for me
My IQ receiver was a bit higher, or the battery, so I had troubles to fit it in. My solution was to cut every superfluous piece and pull the uper layer of slide away. Additionally, I put it a bit nearer to the camera, The last thing was to horizontally cut the gold contacts and solder the wire directly on them.
During charging, the usb charger+pad+droid 4 use 7W, without the droid 4 the pad+charger draw 0,4W, both measured at the primary side ot the charger.
Best regards,
mifritscher

Thanks for the info, looks promising I love your using Micro SD casing as GND
BTW the pad + receiver can be found at eBay for as low as US $12 Gonna try out for myself soon.
Did you get to measure the charge times?

LuH said:
Thanks for the info, looks promising I love your using Micro SD casing as GND
BTW the pad + receiver can be found at eBay for as low as US $12 Gonna try out for myself soon.
Did you get to measure the charge times?
Click to expand...
Click to collapse
Charging times are about equivalent

Different approach, same result
Hi, thanx 4 the great idea.
I took a different approach to install the charging pad. I felt not comfortable to solder directly to the phone, so I used copper-tape, capton-tape and some short wires I took from old headphones to mod the pad directly into the back cover of my phone. it got a little bit bumpier (half a mm), but it charges perfectly.
I applied some solder to the ends which connect to the pins, so the copper wont oxidize and the connection has more pressure.
The pictures in better quality:
View attachment goodquality.zip

zuloo.de said:
Hi, thanx 4 the great idea.
I took a different approach to install the charging pad. I felt not comfortable to solder directly to the phone, so I used copper-tape, capton-tape and some short wires I took from old headphones to mod the pad directly into the back cover of my phone. it got a little bit bumpier (half a mm), but it charges perfectly.
I applied some solder to the ends which connect to the pins, so the copper wont oxidize and the connection has more pressure.
View attachment 2842634
View attachment 2842635
View attachment 2842636
The pictures in better quality:
View attachment 2842637
Click to expand...
Click to collapse
That's a nice solution, and pretty much how the "real thing" was probably set up. I noticed that the back has an internal indentation where the pins are to accommodate the connector, and I had experimented with how I might fit a charging pad in there (actually, it was the connectors that I saw as the biggest challenge), but didn't manage to get anything that I thought was robust enough (I was using cut down parts of a SIM card for the pins to make contact with - you look to have done a better job with the copper tape.
I'm really surprised that we can't buy a new back with all of this gubbins already installed - perhaps you should manufacture a few?

mugen 3800mAh inductive charging cover required!!!
i'm tempted to try this myself. the droid4 keeps getting better.
i just experimented with cardboard, seems to have plenty of room between the cover and the battery. i definitely need inductive charging.

Update 2016
@zuloo.de
Hi! I copied your method for wireless charging but I was too lazy for soldering. That is why I used only copper tape. I ordered under 5$ charging pad and receiver for Galaxy S3 (cheap from China) and it is working good. My receiver says that it can output only 0.8A so I guess it is little bit slow. Can you tell your feelings about the heat? I think that my Droid 4 is pretty hot but I never used wireless charging on other phones so I don't know if it is normal. But thanks anyway posting your method :good:
Here is pictures. I tried to take picture about the bump. It is not bad but you can feel it.

Wireless Charging inside the OnePlus 6T mod

https://imgur.com/a/hhlTgw8
I'm super happy with the results
I bought a more expensive wireless USB type C charger that I thought would charge faster, since it was advertised as a 2000 mah (On amazon, it was gold), but once you open it up it seems to be the same cheap 1000 mah ones.
I did this because my phone is getting old, and I cracked the back glass, and I figured, while I'm inside... I might as well do it.
I had a blast, and I'm super happy with the results, it charges slow, but it works! and I can keep using my wired charger!

Syndor said:
https://imgur.com/a/hhlTgw8
I'm super happy with the results
I bought a more expensive wireless USB type C charger that I thought would charge faster, since it was advertised as a 2000 mah (On amazon, it was gold), but once you open it up it seems to be the same cheap 1000 mah ones.
I did this because my phone is getting old, and I cracked the back glass, and I figured, while I'm inside... I might as well do it.
I had a blast, and I'm super happy with the results, it charges slow, but it works! and I can keep using my wired charger!
Click to expand...
Click to collapse
That's a pretty cool project! Care to elaborate on the steps and materials needed?
One pointer from my end: do not leave this charging overnight or when you're away from the device! Though customizations like this are fun and interesting, they are also a common source of house fires. Risks are probably low here as it involves slow charging but you really don't want to risk it.

Timmmmaaahh said:
That's a pretty cool project! Care to elaborate on the steps and materials needed?
One pointer from my end: do not leave this charging overnight or when you're away from the device! Though customizations like this are fun and interesting, they are also a common source of house fires. Risks are probably low here as it involves slow charging but you really don't want to risk it.
Click to expand...
Click to collapse
I'm making the small guide and I'll post it later
The bad thing is I couldn't really take many pictures, since the phone is what I used to do that, so I'll be using some footage from ifixit teardown video.

So this all began when my phones back crystal panel broke on a fall.
I decided I had to replace it, so I ordered a new Transparent one, since like Jerryrigeverything I love to be able to see the electronics.
While I was at it I figured, why not add wireless charging to the phone? It should be possible, so I looked around for a guide, and I found this one:
https://www.instructables.com/Add-Wireless-Charging-to-Any-Phone-Using-the-LG-V2/
That was way sloppier than what I wanted, but it was a good read, and you can read about what he did.
You will need, a multimeter to check for continuity
A soldering iron, one that can regulate heat so you don’t damage anything, and with the smallest tip you can find
A donor charging receiver
Time and patience.
After that
With help from ifixit (link: https://www.ifixit.com/Teardown/OnePlus+6T+Teardown/115698 )
I opened up the phone, and since ifixit said there was no fingerprint connector you can just go at it, heat, and separate.
Once inside, disconnect the battery first.
The OnePlus 6T has a different design, there’s no pcb for the usb c on the speaker area, it has a connector that goes up to the main pcb, that snaps right next to the battery, since they had to make room for the optic fingerprint scanner.
So I removed the battery, so I could strip the layer of safety glue and make a little more room by peeling away a couple of layers, otherwise this wouldn’t close.
I started probing around with my multimeter for continuity, to do this, I connected the usb type c wireless charge pad (this one: https://www.amazon.com/gp/product/B087TW7MGK/ref=ox_sc_saved_title_4?smid=AQB8EOE9WF3ZF&psc=1 ) after I stripped the protecting plastic cover (to make it even thinner, and to see the insides).
https://forum.xda-developers.com/attachment.php?attachmentid=5118635&d=1603036807
So you connect it and probe the +Vbus and the Ground on that pad, at first I was a bit baffled, since it had pins on both sides, why if it isn’t carrying data, then I realized how stupid I was being, of course, it’s because it’s usb type c, you can plug it in both ways, and it needs to have the correct pins either way.
So I managed to probe around for continuity, and found out these are the correct spots.
https://forum.xda-developers.com/attachment.php?attachmentid=5118637&d=1603036807
I had to remove some of the plastic on the NFC cover to allow the wires to pass, you can see on the final image the route the wires had to take.
https://forum.xda-developers.com/attachment.php?attachmentid=5118639&d=1603036807
As you can see, I also jumped both grounds since it wouldn’t work if I didn’t.
https://forum.xda-developers.com/attachment.php?attachmentid=5118633&d=1603036807
The first one is beefier, but it wouldn’t fit since everything on the PCB was bigger, the thing is, they charged at the same rate when tested with a usb type c power meter around 680-700 mah of charging power with a 10 watt wireless charger.
I ended up using this other one which was cheaper, and also smaller, not as sexy, but that’s the price to pay.
https://www.amazon.com/Version-Wire...48&sprefix=type+c+wireless+cha,aps,185&sr=8-3
so all that was left to do, was place a nice thin sticker on my battery (I miss the red battery days) to make it look a little bit better, and close it up with the transparent back cover (also from amazon).
As a side note, I placed a USB C to C power meter, and these little things do seem to have sensors for when the battery is full, so they don’t overcharge or overheat.
So I left it overnight with a 65 watt PD USB C to C charger, and a wall plug power meter, and once it’s soldered in, it also seems to drop down the charging, and it also stops giving out heat when it’s fully charged, so there might be something on the small PCB for charge detection, or maybe it’s the phones own full charge detection and it stops asking for power, since this would be the equivalent of being connected with a cable.
Still, everyone should operate at their own safety and I’m not responsible if you set your house on fire, but I will continue leaving it overnight.
It charges slowly, but I can also plug in my dash charger, and again, it doesn’t overheat, the PCB on the wireless coil receiver seems to be doing something, maybe.