yashsingh1/xdaforums huggingface dataset:
[ONE General] jgrinst1:
Well, I don't presume to know what kind of regulator code they have in the OPO charging circuitry. I do know that the charge may get limited by the phone if it thinks it is a USB charger as opposed to a being on AC. As there is no Inductive charging circuit, the firmware may think the incoming charge is USB if t fluctuates low, and therefore limit it to 500mA max.

I'm thinking out loud, not sure if that's the case or not. However, after a promising start, only limited charging seems to be going on.

Update 1:

Well, I'm a putz... i had the unit on and it charged overnight - at least it charged to 93% slowly then told me it was at 100%. See piccies - Not fast enough.

I'm a putz because I just decided to check what AC block my charger was plugged into and it was an old Samsung travel charger which has a max o/p of 700 mA. Makes a BIG difference. I switched it and my OPO block and voila... we're in business!

Pics 1 and 2 are last night at 5 minute intervals. Pic 3 and 4 are just after I swapped out my AC block.

I will discharge and recharge tonight to get better stats, but 15%+ per hour will work OK.
[ONE General] jgrinst1:
Update 2:

I had put the receiver under my Tudia case and it didn't perform as well last night. It did recharge fully but only at about 4%/hour. It could have been a placement issue - I will keep monitoring. At least it didn't burst into a ball of flames...
[ONE General] DrunkFuX666:
Dont you think 6-8% per hour is terrible? That means it needs to be on the charge pad for 12 hours for a full charge from a low battery standpoint...

Sent from my Nexus 5

---------- Post added at 12:42 PM ---------- Previous post was at 12:38 PM ----------

Also I dont see why your history is not showing the exact mah Charge its getting...

And lastly , I think you will get a much better idea of how fast it charges if you charge from around the 30% mark... The lower the battery the more power it charges with, as opposed to charging when its already almost full at 80%+...

Sent from my Nexus 5
[ONE General] jgrinst1:
Yeah. 6-8% is not going to work effectively. I can't run down the battery in this phone. It's amazing compared to my N4... I watched a couple of football games and still only down to about 60%.

Still, from my SS, you can see that it charged pretty high from 12;21 to 12;51, then the battery temp climbed to 30 degrees C. Looks like some kind of thermal protection kicked in to cause it to trickle charge the rest of the night. Maybe it is just getting too hot.

Anyone with the coil in sideways mod have this thermal problem?
[ONE General] chenrp:
can you recommend a link to buy both receiver and charging mat for the 1+1?

thanks
[ONE General] jgrinst1:
Not really. It's all trial and error right now. I'm using the Bluboon 1A receiver and the Zens charging mat.

I did move the receiver outside the neoprene portion of my Tudia double layer case yesterday and got better results. So, it is just under the hard shell part. I set the Battery monitor to 10 minutes and as you can see, it charges fine.

So, my suggestion is that this set up will work if you don't use a case and move the NFC, or you use a hard shell case and put it in between the back cover and the case. If so, and you want to hard wire it, you will have to drill a small hole in the back cover. This was mentioned earlier in the thread. The advantage to this is that the existing NFC antenna still works and the case will cover the hole.
[ONE General] HyperMatrix:
Need help....super confused...

750mA wireless qi receiver shows up at my door. I test it by plugging it into the micro usb port of my OnePlus, and holding the wireless receiver pad against my charger. Lights up and charges beautifully without issue. So I go about opening the OnePlus. While trying to figure out the best way to wire it in there, I decide to solder it on directly to the pins on the MicroUSB port (internally, of course). After soldering 2 wires on there, I test the phone to make sure nothing went wrong and plugging in USB cable to the PC immediately brings it up. So no issues. Then I solder the wires into the qi receiver pad. Before closing it up, I hold the wireless pad against my charger, and voila. It lights up. So I put the cover back on and set it on my charger, and I get nothing.

So at this point, I'm thinking maybe the NFC coil is interfering with it. I take the back cover off again and place the phone directly on the charger. Still getting nothing. As I come to lift the phone, I see the charge light flash for a second. So I do some testing. With the pad on the charger, it works fine. With the pad sticking to the inside of the back cover, placed on the charger, it works fine. But as soon as the distance between the receiver and the phone/phone battery is reduced, charging is interrupted. For example...I'll hold the pad against the charger, while the phone is held at a 40 degree angle and it will charge. As I move the phone closer to the charging pad by going to, let's say, a 70 degree angle, charging cuts off.

So...proximity to the phone or phone battery is preventing the charging pad from working....with or without the back cover on. I have no idea what could be causing this. At first I had just used the existing flat cable that came with the qi receiver to solder it in place. Thinking that maybe there was a problem with that cable, considering how thin it was, I decided to redo the wiring with proper cables. Same problem still exists. So at this point...I have no idea what to do because I have no idea what could be causing it.

Any input would be appreciated.
[ONE General] etalocohc:
It's the nfc coil. It has shielding on it. You need to peel it back and put the qi coil underneath it. However the qi coil also has shielding (black cushion) you will need to remove that and slide the qi could underneath the nfc...
[ONE General] HyperMatrix:
Unfortunately, my issue isn't the NFC coil. This problem occurs without the back cover even being on the phone!
[ONE General] burnski:
Remove the paper from the coil too. I've seen some where the sticker they use has a tinfoil backing and affects how it charges.
[ONE General] etalocohc:
It might be the cable. Replace it with a reliable wire or something. Or maybe just check that the cable connecting the qi to the usb actually carries charge and still carries charge when it is bent. I had some trouble with my one
[ONE General] chenrp:
people don't forget that there are two sides of the receiver. one side will charge your phone, the other won't.

i still don't understand why bother if the charging rate is so low.

what current rate app are you using? i have mahdi rom and franco kernel and could't see charging rate( i see minus or zero ma) using wall charger.
[ONE General] HyperMatrix:
I thought the problem was cutting and using the flat cable it came with at first, so I replaced it with some good sold wire. Same thing happens. Cables can be bent in any shape or form and will charge, as long as the pad has distance from the phone. Someone was suggesting there is magnetic/metal interference with the coil? So I'm wondering if anti-magnetic covering the back before sticking the qi coil on would work.

Charge rate is only low if your receiver is low powered. On average, getting power through a computer USB port results in a positive flow rate of 0 to 150mA/hour. Which...is nothing. This coil gives me 280-430mA. Of course it doesn't beat the 750-900 provided by the adapter. But it's definitely a decent charge rate. My coil is apparently rated at 1000mA. I use "Battery Monitor" to view drain/charge rate.

I tried removing the entire thing from the sticker/black paper with no improvement. Are you saying placing actual aluminum foil between the qi coil and the back can improve the charging?
[ONE General] chenrp:
i can't see the ma current with franco kernel with battery monitor.. i see minus or zero even using wall charger...?
[ONE General] burnski:
No don't add foil. I've seen some that the sticker is foil backed though and if yours was to remove it.
[ONE General] DrunkFuX666:
Can you post a screenshot of the battery monitor charging your getting with your coil? If its decent, let us know where you got it from...

Sent from my Nexus 5
[ONE General] HyperMatrix:
I cut the charge mat out of my phone last night. I noticed a very slight bluish tint on my LCD and after freaking out a bit that I had a bad unit and I had somehow until now not noticed the tint in that area, I thought it may be more likely that the mat was applying pressure on the screen, which indeed turned out to be the case. Likely my own fault as after several soldering attempts and different cables used, the solder on the pad did get packed on a little heavy and I couldn't locate/couldn't be bothered to locate my copper braid to fix it. :P

Since the receiver never worked inside my phone, I don't really know if the problem is with the receiver, my charger, or with interference from the phone. As a result...it's hard to recommend it as I'm just not sure. If it had worked the way it did when I plugged it in the usb port and held the pad against my charger, then it'd be an amazing unit as in all my testing, it charged quite a bit faster than through my computer USB port. I only bought it as it was recommended by another member on OnePlus One forums. It's rated at 750mAh although someone reported taking the sticker off the unit to see the original specs mentioned it was 1000mAh. No idea. This is the unit I bought:

http://www.ebay.com/itm/400767654835
[ONE General] LoganMcClay:
Hi everybody,

I did the internal wireless charging mod yesterday on my unit, I used some of the informations you folks gave in this thread, thanks a lot by the way :D

So, here are some informations about what I did and what I got. I didn't took photos as there isn't anything newer to see compared to the ones already posted.

First, I prepared my Qi coil (Itian 750ma for Galaxy S5) to fit in the phone, so I desoldered the 3 pins and put some tin to replace them. Then, I cut the third one that was useless for the mod, as I just needed + and - to work (if you search for pictures of the coil on google you'll see it has two pins only, the one I received had 3).

I used standard wires (the common you get in any electrical shop) to soder from the USB port to the Qi card. It prevented me to close the back, so I replaced it with thin wire (kynar awg30 type) and that time it worked, without bulge or any tearing due to the pressure on the screen.

Then, I cut carefully my NFC foil using the picture shown here... Big mistake, even I didn't damaged the antenna, it doesn't work anymore, so I guess it's better to unstick it carefully and put the Qi coil between it and the back... I ordered last week the new Obsidian black back with NFC pad, i'll try and tell you how it worked.

For the charging rates now, I have to say the coil works like a charm, exactly how I wanted it to do. I use a Nokia DT900 mat embedded in my nightstand at approx. 1mm under the top of the wood, and Boeffla config reports 370ma when correctly positionned, 170ma when it isn't. In comparison I get 1370ma with AC charger and 70ma to 250ma with USB on computer.

I got full charge from 35% to 100% in less than 2hrs, enough for me as I'll mainly charge at night.

The last thing I have to check is charging temperature, but I touched the back twice while charging and it wasn't that hot, I'll say 35°C...

[EDIT] Forgot to say I charge through a Diztronic full matte case that protect the phone, I don't know if it alter the temperature or charging rate... Anyway just have to fix my NFC and I'm done with it :D

I'll keep you in touch ;)
[ONE General] ThugEsquire:
Stellar job. Thanks for posting pics--looks like I'll be able to pull this off.
[ONE General] mike freegan:
Well, I've read around 40 pages of forums comments on this now. Thank you to the brave souls who pioneered this.

Just to clarify, is the consensus still that this is still the best layout for this mod?
[ONE General] etalocohc:
Fyi, my one plus charging was charging too slowly so I never used it properly. You have to orientated the coil so it matches the charge plate so it was a bit too weird for me. When it is orientated horizontally, it seems you lose some of the charge efficiency.
[ONE General] LoganMcClay:
Hi !

I did it that way too, but cutting the NFC sticker got it unoperable, so I ordered a replacement back cover and this time i'll just unstick it and place the Qi coil between NFC and back cover.

Advantage of this layout is it works great with 3 coils designed chargers such as Nokia DT900 (i've one embedded in my nightstand) or Tylt Vu/Itian A6 (I've the A6 at work, just used it once to test it works then unplugged it as battery lasts enough for me) :

[IMG="Nokia DT900 teardown"]http://forums.androidcentral.com/attachments/chargers-batteries/76395d1376249284t-inside-nokia-dt-900-some-mods-imag0189.jpg[/IMG]
[ONE General] burnski:
I'm having a hell of a time finding a coil that works. I've bought 4 so far and none of them work. Can someone provide a link to a decent coil?
[ONE General] LoganMcClay:
Bought two of these Itian S5 from dealextreme but it took 4 weeks to come, they are also available on Amazon.com : http://amzn.com/B00LFVPSS2

Both works great, soldered one in my OPO, the second one was spare in case the first one got damaged while soldering.

I took Itian because it's one of the few brands that got CE/FCC/RoHS approval and haven't that bad reviews (a few on charger's "cheap" apparence and a few on the earlier coil version thickness).
[ONE General] mike freegan:
Am I correct in thinking that this will significantly reduce NFC performance? Because I'm pretty certain that Google Wallet is about to go live in the UK and I want to start using it.
[ONE General] LoganMcClay:
Not really, as the shielding covers way more area than it is necessary for the NFC antenna, so even if a part of that antenna is covered by the Qi coil, it will performs like usual. Some have tested this option, even removing the shielding of the Qi coil to make sure it won't interfere with NFC and got that same result.
[ONE General] burnski:
Is this the one you got? It looks like it also have 3 pin: http://www.ebay.ca/itm/Ultrathin-Qi...S_Cell_Phone_PDA_Chargers&hash=item3f3e86268f

nvm, ordered.
[ONE General] LoganMcClay:
Ordered the two pins and received the 3 pins, anyway I unsoldered the 3 pins to gain room, put tin (not Vladimir ;)) and soldered on it. Also i've cut the 3rd one, i'll take a picture when i'll change my styleswap cover, reveived it friday :D
[ONE General] burnski:
Cool I've ordered it. I'm getting quite the collection of doa coils. Getting annoying not finding one that works. Really having withdraws from my old nexus 4 that had it built in!
[ONE General] etalocohc:
Try the coils with a multi/voltmeter on a qi charger before doing any soldering to see if the coils work before you play with it. Sometimes when you are mounting etc, you can loosen a cable and stop the current.
[ONE General] burnski:
Yah i always test with a multi meter first, and i have three different styles of charger i test with also.
[ONE General] LoganMcClay:
My mod

And voilà !

Working NFC, Obsidian Black StyleSwap back cover (no Cyanogenmod branding, and glad to get rid of it), this produce a little noticeable bulge if you look at it, but it isn't visible and the feel is almost flat. It wasn't noticeable with the Sandstone original StyleSwap back cover so I guess the Obsidian Black is a little slimmer.

Btw I received Obsidian Black complete with original 1+1 boxing, side buttons, micro & nano sim tray and of course NFC coil :D
[ONE General] burnski:
That's awesome dude. I ordered the white style swap back cover. Didn't include the buttons, trays, no nfc (useless in Canada anyways without Google pay bring available here) and no cyanogen branding ($12cdn shipped). The plastic is actually very thin which is good because there is a bit if a gap between the cover and the battery so the qi coil should fit comfortably without any bump.

I ordered the same qi coil as you - have you tested it with battery monitor widget yet to see the average charging current?
[ONE General] LoganMcClay:
Not at all, just checked with Boeffla's kernel app monitor (as I run a modified kernel) and already posted my results a few pages back, it does charge quickier than 5V USB from my computers, indeed slower of any of my wall chargers but anyway I manage to get full charge in less than 2hrs and as I Qi charge at work or at night on my nightstand, it's really enough for me :)
[ONE General] mburris:
Completed Wireless Charging Mod

Hello All,

Thanks for the great information in this thread. I have taken what everyone else has done, and added my own little twist.

In summary, I used an LG G3 (International, Sprint, or Verizon) Wireless Charging + NFC Antenna Sticker along with the circuit from a Samsung S5 QI Wireless Charging Receiver Module.

The NFC points on the LG sticker are able to line up exactly with the points on the back of the OnePlus, and the NFC works great.

Here is an Imgur album for illustration purposes.
[ONE General] burnski:
great job!
[ONE General] Diablo2424:
That's awesome!! I definitely want to do just this, could you link where you got your styleswap cover from, as well as your Qi Coil and pad? Thank you for all your testing and results!
[ONE General] LoganMcClay:
Hi Diablo2424 !

Official StyleSwap Cover : http://www.aliexpress.com/item/Official-original-Oneplus-one-back-case-cover-3-color-white-black-and-bamboo-bamboo-case-cover/2047872490.html [Obsidian Black]

Qi Coil : http://amzn.com/B00LFVPSS2 [Itian Galaxy S5 750ma]

Qi Pad (embedded in the nightstand) : http://amzn.com/B00A3NCC5K [Nokia DT900]

Qi Pad (at work) : http://amzn.com/B00LFVPRMO [Itian A6]

I took 3-charging coils design chargers (DT900 and Itian A6, Tylt Vu is OK too) to make sure the One will have the horizontally mounted Qi coil correctly lined with the lowest (or highest) of the 3 coils of the charger. For my nightstand, I hollowed out the wood until I was at 1mm of the surface, more or less following the lines you can see on top, so it's really easy to get a right position for charge.

Concerning the position, the Qi coil makes noises when mispositionned but it still works, just at really lower rates. You will easily get used to it and position it right in seconds after a short time.

Hopes you'll enjoy the mod as much as I do ;)
[ONE General] mike freegan:
Well... I tried this. My Qi receiver wasn't really suitable when I cut it open. I couldn't find any wires. I sanded it down to the metal ribbon, but soldering that didn't work once soldered.

Anyway, what did happen was my vibration broke. I may have bridged the two end pins on the right of the USB connector, which could be to blame, contrary to the information in this thread. Unsoldering the wires resolved the problem.

As great as this is, I don't want to risk soldering stuff again, so I'm going to go back to a plain old USB Qi receiver for now.

Good luck, everybody!
[ONE General] jp.esteban:
Questions for LoganMcClay

Hi, thanks for posting your process! I'll be following this when my OPO comes in next week.

I have some questions though. To clarify, you did NOT cut the excess NFC shielding, right? I assume what you did was just to lift the shielding and tape, position the Qi coil underneath it, and lay the shielding back down on top of the coil. Does this affect NFC or Qi charging signals at all? Also, why in your picture is the NFC shielding colored white and have what looks like a blue cellophane tape over it? Is this just what it looks like under the replacement StyleSwap covers, or did you do something else here? Lastly, am I correct in assuming the black electric tape is just to help adhere the Qi coil and NFC shielding to the cover?

Thanks again and happy new year!
[ONE General] mburris:
So Im thinking about wiring in two coils and two coil circuit boards in parallel.

Pros:

More available area that will work as a charging surface

If both areas are active, it should charge at higher Amperage

Cons:

I have no idea if this will work

Take a look at the attached diagram.
[ONE General] abhi08638:
I was thinking about doing the same but wouldn't you need a resistor between the two boards to prevent a discharge?

sent from my amazingly awesome OnePlus One with Stereo Mod

Don't forget to hit thanks!
[ONE General] mburris:
I dunno. According to the diagrams here I didn't think anything else would be needed. I don't think that the boards would be pulling any charge out of the circuit, but I guess I'll just have to wire it up and test. The additional coil and IC is not going to be here until next week, so it will be a while.
[ONE General] abhi08638:
Well let us know how it goes. Do you have a 2 amp charging mat to test with

sent from my amazingly awesome OnePlus One with Stereo Mod

Don't forget to hit thanks!
[ONE General] mburris:
I didn't think about the limitation of the QI mat. I don't think they even make one over 1000mA.

Hmm... I guess I'll just put two of my Nokia QI mats side by side and have the phone span them both!
[ONE General] LoganMcClay:
Hi jp.esteban,

Exactly, I did cut it on my original Sandstone, and it lead to a non working NFC, the antenna was complete but I think I had cut a little too close and it got some interferences or something like that. So, on the Obsidian Black, I just lifted and put the Qi coil underneath it as you assumed.

Not at all ! That way both NFC and Qi works great, the only thing that can be tricky is if you try charging on a single-pad design Qi charger, as the Qi coil is placed horizontally, you have to put the phone at 90° of the normal position for it to work properly :p That's why I only use 3-pads design Qi charger.

All the StyleSwap back covers comes with that new white NFC antenna and the blue protection on, nothing added by myself ! I just added a piece of sticker paper to make sure the NFC shielding won't stick on the Qi coil (if I need to change it or anything) and I secured the Qi coil and the NFC shielding with the black electric tape :)
[ONE General] SinXtreme:
I'm also more of a lurker than an active poster, just wanted to thank you all for the great input. Coming from a Nexus 4 and 5, the lack of Qi really bugs me about this otherwise good device.

I will definitely try this, as soon as my semester is over and I have more time to tinker with it.

My only concern is, that my soldering irons tip may be too big to do a precise soldering job at the internal end of the USB port. I will have to do some shopping at Amazon I guess ?

I will report back as soon as it's done (and hopefully working ?)
[ONE General] LoganMcClay:
Hi SinXtreme,

I do use a normal tip on my soldering iron, the trick is to tin enough the end of your wires, then you put them in place, securing them with electrical tape, and by just heating each from the top for like 3 secs will solder them properly. If you have shaky hands, it will also be easier to reach the target ;)
[ONE General] SinXtreme:
Thanks for the input. ?

On a scale from 1 to 10 how difficult do you think is the required soldering?

I'm a computer science student and I think I understand the process pretty well, thanks to this awesome thread here but I used a soldering iron only a few times at high school. Therefore I would consider my overall experience as pretty low. I have some spare micro USB ports left so I could practice a few times without causing any harm to the device.

My idea was using a third hand to secure the cable in place but yours seems to make the task much easier. Thanks a lot!
[ONE General] LoganMcClay:
Hi, sorry for the late reply...

I'd say 4/10, you just have two points to solder and even if you short the two pins at the extreme left or right (pins 1-2 and 6-7, it's not a regular 5 pins connector) it will still work as they're hardware shorted somewhere inside the mainboard... I'm not a pro too, even if I already messed up with some modchips on XBOX/PS2 and Wii, and it was really harder ^^