Nexus 7 Qi Wireless Charging Mod - Nexus 7 General

Hi everyone, thought I would share a mod I did to my tablet based off this guy on Youtube:
http://www.youtube.com/watch?v=l6QcSpZHGFs&list=UUOxsHE9Vmxb32X66EUSWkOw&index=1
Note he used a Blackberry 8900 Energizer Qi Cover. I used an Apple Iphone 3G one and removed the coil.
Step 1: CAREFULLY remove the tape and casing around the Qi coil. The plastic comes apart easily. You want to avoid damaging the board and wires when removing the tape securing it to the Iphone case.
Step 2: Remove the nexus 7 cover. It clips off quite easily once you get a grip. I found it easiest to remove the sim slot cover and pry from there, but any opening should do.
Step 3: Place the coil. Note where I placed mine I had to peel back the bronze covering to allow the coil to penetrate the back of the case. Run the wires to the NFC connector. Note the position of the wires in the photo. Be sure to insulate the wires with tape and ensure no crossed points (which shouldnt be an issue anyhow).
Step 4: Remove the Iphone connector and solder the wires to either end of the NFC noting the correct positive and negative positions.
Step 5: Test. Note that it will enter docking mode when initially connected. If the docking notice keeps popping up that means that you do not have it centered and the connection keeps re-establishing. I used the LG Qi pad from Verizon for testing. Just pop the cover back on once done, and voila!
I preferred this to the Palm Pre inductive mod since my Nexus 4 uses the Qi standard. Hope this helps some of you!
You can disable the docking screen/options via 'DayDream' mode being turned off in display settings.
High Res Pics
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Pic 2
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Pic 4

reserved

I did that mod too. Used the blackberry 8900 coil. Seems like it will take a while to fully charge the battery once its dead. I'm going to see if I can find a larger coil that can put out a higher voltage.. What is your total time to recharge your Nexus 7..? I finalized the mod today and am just charging my unit for the first time now. But it seems to be getting a low volatage as its still I'm single digits and its been on the charger for an hour or so already..

I'm getting 5 to 9 an hour with the lg charger. I'll post results when my energizer arrives and is tested.

What happens if you charge via the pogo pins (ex. a dock) and charge using a charging mat at the same time? I know this is unlikely, but I'm curious if this could cause damage to the tablet.

Does this work thru a case?
Sent from my Nexus 7 using xda app-developers app

It doesnt work through the thick leather Truss case I have it in, but works through tpu covers.

Sean09 said:
It doesnt work through the thick leather Truss case I have it in, but works through tpu covers.
Click to expand...
Click to collapse
I've got the poetic flip case. It's a thinner plastic with leather. Think I'm sol? What if I increase the coil size? Will that increase the strength?
Sent from my Nexus 7 using xda app-developers app

So cool wish I had the guts to do this.

mrazndead said:
So cool wish I had the guts to do this.
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Click to collapse
It's very simple. This is a great mod for a beginner tinker-er
Sent from my Nexus 7 using xda app-developers app

Yep, very easy to do mod. The energizer seems to charge faster. I am going to have to test more thoroughly, but I am getting ~15% per hour with it thus far.

After more thorough testing my LG charging pad seems to average 9-13% an hour, whereas the energizer seems to only do 7-9 an hour. Decent for overnight charging, but certainly not very fast.

Two questions:
1) What's the total cost to do this. That is both a charging mat and a donor back door.
2) How much current (that's mah not voltage) do these doors provide? I'd assume they all supply 5V since that's the USB standard and most things charge that way nowadays. Do they have ratings on them or is it just the situation that they make a replacement door/back for the xxx device and you have to live with that if you have a xxx?
Sent from my Nexus 7 using Tapatalk HD

The cost is that of a qi coil as described in post 1 and any qi mat.
Sent from my Nexus 7 using Tapatalk HD

Nice screen protector:silly:

This is great and looks simple too. This all fits under the stock back cover?
Sent from my Nexus 7 using Tapatalk HD

T-Keith said:
This is great and looks simple too. This all fits under the stock back cover?
Sent from my Nexus 7 using Tapatalk HD
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Click to collapse
Yes fits without issue
Sent from my Nexus 7 using Tapatalk HD

I think the reason people go with the palm setup is that you can find them for dirt cheap. What is the best/cheapest source for qi stuff?
Sent from my Galaxy Nexus using xda premium

I have been able to find the energizer base stations in clearance areas like Wal-Mart, Kmart, Target and sometimes goodwill. Any of the energizer stations are qi compatible. My wife was able to score a double station from goodwill with the BlackBerry coils for 20 bucks ya just gotta look around
Sent from my SGH-T989 using xda app-developers app

Yes fits without issue

Related

[Q] Inductive Charging

What's the deal with inductive charging on this baby? I know it supports it, but I don't see any accessories that do it. Is it just a generic thing to find and buy?
We'll have to wait for some kind of accessory that fits the Bionic with an inductive charging back, either from Motorola themselves, or from a third-party.
The inductive back is available through verizon online and in store for most stores form what i understand but the charger itself doesnt seem to be available yet.
Does anyone know if the Verizon inductive back will work with a power mat charger?
Sent from my DROID BIONIC using XDA App
Yes, I spoke to a Verizon customer service rep and they confirmed the power mat does work with the bionic it just hasn't been updated on the website to reflect that. As a side note I ordered the inductive cover and the power mat yesterday online and received a 25% discount on both items.
EDNYLaw said:
Yes, I spoke to a Verizon customer service rep and they confirmed the power mat does work with the bionic it just hasn't been updated on the website to reflect that. As a side note I ordered the inductive cover and the power mat yesterday online and received a 25% discount on both items.
Click to expand...
Click to collapse
Please let us know how it works out.
Sent from my DROID BIONIC using xda premium
The duracell charging mat works.
From my understanding you have to use a mat that is Qi enabled for the Inductive back to work. The only charger pads out with that currently are the Verizon one they sell on their site for $69 or the Energizer Inductive pad. Powermat and the Duracell pads are not Qi.
Wadzii said:
Does anyone know if the Verizon inductive back will work with a power mat charger?
Sent from my DROID BIONIC using XDA App
Click to expand...
Click to collapse
No IT DOES NOT. you have to use a Qi compatible charge pad like the ducacell one or the verizon one
Inductive Charger and Cover pictures
I just got the inductive charging mat and the cover from Verizon (when I ordered it last Friday it was all 25% off). Thought I would post the pictures for anyone interested. By the way I weighed the phone now and it weighs 168 grams, it definitely added a little weight but not much.
EDNYLaw said:
I just got the inductive charging mat and the cover from Verizon (when I ordered it last Friday it was all 25% off). Thought I would post the pictures for anyone interested. By the way I weighed the phone now and it weighs 168 grams, it definitely added a little weight but not much.
Click to expand...
Click to collapse
Hey, can you post some pictures of the cover by itself? Also, is there a battery that gets included with it? And how does it connect to the phone itself? Does it use the contacts next to the battery slot? Thanks.
I will post those pictures soon. The inductive cover doesn't come with a battery, just the cover. If you pop the cover off your Bionic you'll see a little connector about half way down on the right side of the battery. That's where it connects, again I'll post pictures in a little while. I do have to say, I've been using it for a few days now and it's awesome, a wire free lifestyle is where it's at!
Update: Picture of inductive cover added, let me know if you want any more pictures.
Sent from my DROID BIONIC using XDA App
Do they have a inductive charger with extended battery plate our do we have to take it off the regular one and glue it to the extended cover? Ghetto
Sent from my DROID BIONIC using xda premium
EDNYLaw said:
I will post those pictures soon. The inductive cover doesn't come with a battery, just the cover. If you pop the cover off your Bionic you'll see a little connector about half way down on the right side of the battery. That's where it connects, again I'll post pictures in a little while. I do have to say, I've been using it for a few days now and it's awesome, a wire free lifestyle is where it's at!
Update: Picture of inductive cover added, let me know if you want any more pictures.
Sent from my DROID BIONIC using XDA App
Click to expand...
Click to collapse
I love mine too! It will even charge through the shell case with the Kickstand! I really wish I could find a gel silicone case to go with the inductive charging cover though.
I don't use a case on mine but it's good to know that the induction works through a case, I'm actually pretty impressed with that fact since, prior to the Bionic my OG Droid and DX never were compatible with anything when they were in cases
Sent from my DROID BIONIC using XDA App
jesemalave1 said:
Do they have a inductive charger with extended battery plate our do we have to take it off the regular one and glue it to the extended cover? Ghetto
We are stuck going Ghetto...
If you have any luck with the glue route please post pics
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Click to collapse
cyberhern said:
jesemalave1 said:
Do they have a inductive charger with extended battery plate our do we have to take it off the regular one and glue it to the extended cover? Ghetto
We are stuck going Ghetto...
If you have any luck with the glue route please post pics
Click to expand...
Click to collapse
I hacked my backplate to do wireless charging with the extended battery...
post here:
http://forum.xda-developers.com/showthread.php?t=1273029
Click to expand...
Click to collapse
Triskite said:
cyberhern said:
I hacked my backplate to do wireless charging with the extended battery...
post here:
http://forum.xda-developers.com/showthread.php?t=1273029
Click to expand...
Click to collapse
Yeah I read your post yesterday... Very creative! But I was hoping to see if somebody had any luck with the Moto ext. And the moto wireless charger because I bought both hoping to rig it. Having trouble figuring out how to extend the power lead
Click to expand...
Click to collapse

Anyone using Qi wireless?

Hey guys, I am wondering if anyone has attempted to use Qi wireless with the G Flex. I had the Palm touchstone for my GS3 and fell in love with it. With the Flex I am figuring it is a bit more complicated as there is not simply a dedicated hookup on the back of the device that made the Palm mod possible on the S3, as well as most Qi enabling devices out there connect into the microusb port, which may not be as simple as it could be given the curved back and oddity that is the microusb 3.0 standard connector.
So has anyone given it a shot and have some recommendations?
I didn't feel the need to since the battery last me all day on one charge even with somewhat heavy use.
Sent from my LG-D959 using Tapatalk
I'm running this on a Qi wireless charger now. Works quite well except you can't get enough juice out of the Qi receivers on the market. They only go up to 750 mA which means it takes a long time to charge. But I like the convenience.
Sent from my LG-LS995 using Tapatalk
skyfox99 said:
I'm running this on a Qi wireless charger now. Works quite well except you can't get enough juice out of the Qi receivers on the market. They only go up to 750 mA which means it takes a long time to charge. But I like the convenience.
Sent from my LG-LS995 using Tapatalk
Click to expand...
Click to collapse
Do you need a special case for wireless charging? I thought it didn't support the Qi wireless charger. Is it a new feature in 4.4.2?
PattyNYC said:
Do you need a special case for wireless charging? I thought it didn't support the Qi wireless charger. Is it a new feature in 4.4.2?
Click to expand...
Click to collapse
Good question. Qi wireless charging is a hardware limited option. So you have to add a Qi wireless receiver. You can find numerous universal Qi micro usb "A" on Amazon or eBay. The receiver plugs right into the charging port you have and the receiver is either secured to the back of the phone (it's a really thin, like a thick piece of paper almost). Since there is no removable cover this is the only option. Now if you don't have a case or have a slim one, it probably wouldn't look good. I have mine tucked under a Trident case (in between the phone the case), the Aegis I believe. So you don't even notice it.
Let me know if you have any questions.
Sent from my LG-LS995 using Tapatalk
skyfox99 said:
Good question. Qi wireless charging is a hardware limited option. So you have to add a Qi wireless receiver. You can find numerous universal Qi micro usb "A" on Amazon or eBay. The receiver plugs right into the charging port you have and the receiver is either secured to the back of the phone (it's a really thin, like a thick piece of paper almost). Since there is no removable cover this is the only option. Now if you don't have a case or have a slim one, it probably wouldn't look good. I have mine tucked under a Trident case (in between the phone the case), the Aegis I believe. So you don't even notice it.
Let me know if you have any questions.
Sent from my LG-LS995 using Tapatalk
Click to expand...
Click to collapse
Thanks for the help!!
never charge ?
sweets55 said:
I didn't feel the need to since the battery last me all day on one charge even with somewhat heavy use.
Sent from my LG-D959 using Tapatalk
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Click to collapse
Ohhhhh so you never have to charge yours ? cause i have to charge mine once a day, but id still like to just plop it on a pad
glitch242 said:
Ohhhhh so you never have to charge yours ? cause i have to charge mine once a day, but id still like to just plop it on a pad
Click to expand...
Click to collapse
Man this is a old post. lol I think I charged the Flex like I do my Note 4. I'll put it on the wireless charger when I sleep and maybe when I take a shower or eating. With the Note 4 it has quick charge so I use the cable if I need some quick juice.
Any word when the Flex 2 is coming out?

Home made QI wireless charging? Anyone?

Hi guys.....i love my zr but really disappointed with absence of accessories for it.
There are qi charging pads and accepters on aliexpress for 10 bucks a set... NOT FOR OWR PHONES of course.
I can fit in one inside of the rubber seal area and connect it with small wires to the battery.....
The question is.....have anyone tryed it before?
Sent from my C5503 using xda app-developers app
I wouldnt recommend forcing the pad under the battery door. If you look under there youll notice that the waterproofing works by letting the rubber gasket fall into a channel; if you add something thatll push the gasket away from the channel, it might be enough to let water in.
I actually just got my wireless charging pad for the Note 2 in the mail today. I'm planning to adapt it to my Xperia ZR but in a different way. I plan to put it between my phone and case, and connect it thru the docking connectors on the side of the phone. Ill update you with photos when im done if it comes out alright. Right now im just worried about how Im gonna get it to sit right without covering the flash.
Sent from my C5502 using XDA Free mobile app
update pics when u r done.
younix258 said:
I wouldnt recommend forcing the pad under the battery door. If you look under there youll notice that the waterproofing works by letting the rubber gasket fall into a channel; if you add something thatll push the gasket away from the channel, it might be enough to let water in.
I actually just got my wireless charging pad for the Note 2 in the mail today. I'm planning to adapt it to my Xperia ZR but in a different way. I plan to put it between my phone and case, and connect it thru the docking connectors on the side of the phone. Ill update you with photos when im done if it comes out alright. Right now im just worried about how Im gonna get it to sit right without covering the flash.
Sent from my C5502 using XDA Free mobile app
Click to expand...
Click to collapse
Plz UPDATE us when u complete this little project
vbansal89 said:
Plz UPDATE us when u complete this little project
Click to expand...
Click to collapse
Okay heres my update: i did what i was planning to; unfortunately its not incredibly elegant.
I used a charging pad for note 2 which i bought on ebay. The copper tips i used as pins for the charging pad were a bit bigger than they should have been so my case is a little warped on that side. Also the pressure from the case makes the pins not have great contact with the phone so it takes little fidgeting to get it to start charging. Besides that though it works fine. I set it on the wireless charger at night and the phone is at 100% in the morning.
This weekend im gonna redo the soldering of the pins with some slightly smaller ones and see if i can make it... prettier.
The only thing to keep in mind is that +5v is the pin closest to the top of the phone and gnd is the bottom one. I also had to modify the charging pad to g3t the flap to come out higher up from the pad, otherwise I would have had to cover the flash.
Sent from my GT-N8013 using XDA Free mobile app
Yet another update. I tried to make it more elegant by reducing the thickness of the pins but to no avail. Doing this mod with a tpu (flexible plastic) case was a waste of time since theres no way to keep pressure on the pins and make the case sit flush.
Sent from my C5502 using XDA Free mobile app
What about glueing the connector to the phone? With this solution no pressure from the plastic case is required I guess...

See this video before buying a Magnetic car mount for your Samsung Note 8

<Mod Edit>
Thread closed
The S pen uses some form of inductive magnetic charging to power it and track it....
Demonface.24 said:
Good to see the effects of the magnets .
Click to expand...
Click to collapse
Thank you. Hope it helps.
Sent from my ONEPLUS A3000 using Tapatalk
mason2smart said:
The S pen uses some form of inductive magnetic charging to power it and track it....
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Click to collapse
Yeah perhaps so
Sent from my ONEPLUS A3000 using Tapatalk
Why would you ever put any magnets near any electronics?
Who the hell uses the S Pen while it's mounted in a car...?
winhhh said:
Who the hell uses the S Pen while it's mounted in a car...?
Click to expand...
Click to collapse
Haha we never know. Maybe they want to doodle when they are driving? [emoji14]
Sent from my ONEPLUS A3000 using Tapatalk
Already knew this from using a magnetic mount with my Note 5. Inconvenient, but it's the most efficient mounting method for a phone in a car.
Great to hear that you know about this
Sent from my ONEPLUS A3000 using Tapatalk
would this cause any long term damage?
black96ss said:
would this cause any long term damage?
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Click to collapse
Absolutely not.
Sent from my SM-N950U using Tapatalk
No long term damage just minor inconvenience
Sent from my ONEPLUS A3000 using Tapatalk
I have had troubles with magnetic cases in the past, the magnets interfer with some components, in a S3 the case started the camera! How? I will never know
If done correctly , I've always done red neck by using Velcro. I made sure back of case was clean via alcohol , then same to the smooth area of my dash.
3m grade velcro used, never came off during my last three devices with cases.
Sent from my SM-N950U using Tapatalk
I was using it for my Note 4 and currently Oneplus 3t and no problems on that though
Sent from my ONEPLUS A3000 using Tapatalk
Currently using mine without any issues - it's between the phone and my thin Spigen case. I never use the S-Pen on the mount - totally pointless...so this whole thing is a moot point unless you use a desk stand magnet holder.
What the metal piece will do, however, is interfere with wireless charging if the charger's coils cannot touch it well enough. I'm currently in the testing phase of seeing which charger works best with this setup.
Choetech Fast Wireless Charger 1: http://amzn.eu/169eOGi
Choetech Fast Wireless Charger 2: http://amzn.eu/4r62fmZ
UPDATE:
So I figured out a way to get the phone to charge with the metal piece inside the case to avoid the coils. Basically, place it horizontally near the bottom 1/3 of the phone (I had it in the middle vertically before - and this is the main area where the coils touch to charge).
I tested with both Choetech chargers this time using a good thick micro-usb cable to my Samsung Note 8 charger. I used the Ampere app to measure the mA. Charger 1 hit around 830-900mA consistently. Charger 2 hit around 500-800mA inconsistently. My Huawei Mate 9 Super Fast Charger and the Samsung Note 8 Charger with my Huawei Mate 9 usb-C Cable and Note 8 usb-C cable both hit 1030-1040mA consistently max when plugged in.
I'm returning the new one (Charger 2). It has a less appealing, odd shape with fans that don't really do anything. It's much bulkier too.
Normally, wireless charging is terrible compared to USB charging, but this setup really impressed me. Try it and let me know what you guys think.
Nice. Thanks for the feedback.
Sent from my ONEPLUS A3000 using Tapatalk
whiteangelcl said:
Nice. Thanks for the feedback.
Sent from my ONEPLUS A3000 using Tapatalk
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Click to collapse
My pleasure. Previous post updated! :fingers-crossed:
I guess I don't see the point either, as I don't drive and try to write on my note at the same time..
Sent from my SM-N950U using Tapatalk
Yeah, I ended up putting the metal disc (which is only even necessary due to my dbrand skin) on the bottom of my phone so I can use a mag mount and still have wireless charging. Sans skin, my note 5 didnt need a disc and my 8 probably wouldn't either.

Wireless charging success

I bought a wireless charger receiver for US$8.53 from Amazon and installed it under the case. It works very well. I'm waiting for my battery to get low and I will test charge rate.
If you don't want to remove your case every time you use the USB-C port, be sure to leave a little bit of slack in the cable so you can remove the charger connector
As @dandrumheller noted, the charger USB-C connector also protects the port from debris.
I have a Nillkin receiver and works great. I use a black case so you don't see it.
borijess said:
I have a Nillkin receiver and works great. I use a black case so you don't see it.
Click to expand...
Click to collapse
Yes I have a black case too I just wanted to show the receiver
Sent from my crosshatch using XDA Labs
borijess said:
I have a Nillkin receiver and works great. I use a black case so you don't see it.
Click to expand...
Click to collapse
Out of curiosity, how long does the wireless charging take? What % do you start at and what % are you stopping at or are you placing it on the wireless charger whenever? How warm does the phone get during charging - is there a noticeable difference?
Any and all information you can provide is appreciated.
RRSpikes said:
Out of curiosity, how long does the wireless charging take? What % do you start at and what % are you stopping at or are you placing it on the wireless charger whenever? How warm does the phone get during charging - is there a noticeable difference?
Any and all information you can provide is appreciated.
Click to expand...
Click to collapse
All wireless charging gets warm. Nothing new there, I had a note 8 and wirelessly charging was all I did. The note 8 got very warm. It's just more convenient to just lay it down and charge it. The battery life is so good on this phone that I only charge it once a day. Once I lay down to go to sleep, I lay it down and it starts charging. I have not timed the speed of the charging, but it charges at around 1 amp. Which is good enough for me. Use Ampere to measure the charging current.
Can you link the one you bought. I'm having trouble finding it.
Sent from my ONEPLUS A6013 using Tapatalk
BlackHoleSlam said:
Can you link the one you bought. I'm having trouble finding it.
Click to expand...
Click to collapse
Ok it's charging around 800+ma
Fine for overnight
USB C Qi Wireless Charger Receiver, sharllen Universal Ultra Thin Charging Adapter Receptor Receiver Patch Module Chip iPhone 7 7Plus, iPhone 6 6Plus, iPhone 5 5s 5c SE - Rose Gold https://www.amazon.com/dp/B07CSQ43X2/ref=cm_sw_r_cp_apa_0935Bb5DREPYG
Sent from my crosshatch using XDA Labs
Here it is
Sent from my crosshatch using XDA Labs
I get over 1A with this one.
https://www.amazon.com/gp/aw/d/B01M11UT3V?psc=1&ref=yo_pop_mb_pd_title
So I got this Tudia case that is a two piece case. The Nilkin wireless receiver leaves a bump on the back of the case. So I cut out a section of the silicon part of the case. So the receiver fits and doesn't cause the buldge. Looks good and feels better in the hand.
Last pic
Damn.
I never considered doing this. Lack of wireless charging is the biggest negative for me on the 6T. This adds it inexpensively, and provides intrusion protection to keep debris out of the charging port. Bonus.
Some nice clean installs gentlemen - thanks for sharing the idea and the implementation.
dandrumheller said:
Damn.
I never considered doing this. Lack of wireless charging is the biggest negative for me on the 6T. This adds it inexpensively, and provides intrusion protection to keep debris out of the charging port. Bonus.
Some nice clean installs gentlemen - thanks for sharing the idea and the implementation.
Click to expand...
Click to collapse
I had the note 8 and loved the wireless charging. That is why I bought the receiver for the 6T. I still have the dash charger in the box. Never used it and the 6T has incredible battery life.
Running the same setup with the flip case. Charging is not fast as my note 9 for sure, but gets the job done overnight just fine.
Do these need to be removed in order to use NFC?
thecobra said:
Do these need to be removed in order to use NFC?
Click to expand...
Click to collapse
No. Nfc still works
I purchased this one, https://www.amazon.com/dp/B01M11UT3V/ref=cm_sw_r_cp_awdb_t1_Rxw7BbM5F519D. It charged from about 35% to full in a little less than 4 hours overnight.
Sent from my ONEPLUS A6013 using Tapatalk
ledvedder said:
I purchased this one, https://www.amazon.com/dp/B01M11UT3V/ref=cm_sw_r_cp_awdb_t1_Rxw7BbM5F519D. It charged from about 35% to full in a little less than 4 hours overnight.
Click to expand...
Click to collapse
That's the one I have. I just charge my phone overnight as well. So charging speed does not matter to me.
I've tried a couple of different ones, but they don't show as charging on the phone. The charging light comes on but the battery stats don't show anything.
What wireless pads are you guys using? I have a Qi and just like the post above me, the light comes on, but there's nobody home.
Maybe I need a new wireless pad.
Thanks!

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