Develop Bugs

[Q] S4 mini wireless charging

Dear all,
I'm considering buying a mini S4, but enough for me to essentially probably Wireless charging. Search through Google gives a lot of references to receivers and cover Qi standard for S4 and S4 active, but I can not find similar for S4 mini.
Are there any options?

S4 Mini doesn't have the wireless charging chip/card in the back by default...
For S4 and others, you could add in the capability by adding a Qi card like this: http://www.kogan.com/au/buy/qi-wireless-charging-card-galaxy-s4/
If you look it has a contact strip coming off it (Second photo) that connects to the phone via 2 pins in the back of the phone, as far as I am being told by "Kogan" (A local Gadget Co in my Country) S4 Mini does not support the Qi card as when I pull the back off my phone, I dont see those 2 pins like the normal S4? So no way to charge the battery? I wonder if it could be modded to contact directly to the battery??? but I guess the phone would have to control where the current goes so that wouldn't work.
I wonder if that would work though, mod teh Qi card so it connects to the battery pins so that when you place your S4 mini with Qi on the mat, power is drawn from the Qi side and not the battery thus, saving you battery power rather than charging it? Thinking about it, this might a pretty cool device to put into full scale production???

What about "universal" chargers like this: http://bit.ly/1aLGut6
Anybody tried it with S4 mini?

There's already a discussion about this topic here in the Accessories section:
http://forum.xda-developers.com/showthread.php?t=2415990
Maybe you can find some answers there.

[Q] External antenna N7100 Note 2

Hi everyones.
Under the cover of N7100 there is a connector. Maybe MCX or MMCX. I don't know.
Question is: the connector is for Wifi, 3G or GPS?
I would connect an external 3G antenna.
It's possible?
Thanks.

You mean flip cover? That is NFC chip dude

carsco said:
Hi everyones.
Under the cover of N7100 there is a connector. Maybe MCX or MMCX. I don't know.
Question is: the connector is for Wifi, 3G or GPS?
I would connect an external 3G antenna.
It's possible?
Thanks.
Click to expand...
Click to collapse
I'm pretty sure it is.
Connector marked as R1 = for 3G/UMTS.
If you have an LTE version, the R2 hole should be for the LTE signal.
*EDIT*
I'm not 100% sure.
But it makes sense if it is. The R2 connector is not on the N7100, but it is on the N7105. I don't see why they would add a 4G connector but not a 3G connector.

If it is on the side of battery compartment,they are wireless charging pins.
A Qi coil pad is connected via these for wireless charging.

I'm not be able to post external link, but I'll try.
Here is a picture of my phone:
i.imgur.com/yCsGkWw.jpg
The connector is the round one, female.
I've seen a disassembly video and seems that the connector is near to a thin cable that bring the signal to the 3G antenna on the bottom of phone.

See this:http://www.ebay.com/itm/Samsung-Gal...tenna-antenna-adapter-cable-3db-/370780049306
I always thought that these ports are present for diagnostic purposes.But I remember reading somewhere that R1 is for 3G,R2 for LTE,G1 for GPS and W1 for Wifi...but never cared to read further on

Do you mean that the connector is FME?
In the description seems there are 2x FME male connector but the connector is smallest that the female one that connects the antenna.
I think that only antenna is FME while the cell phone is another connector.
Remember that I've a 7100, not 7105, not LTE!

Hmm..maybe.
Acc to the description "Connect two ports together with only 1 antenna" means a single antenna can be used both for Lte and gsm(gps/wifi-maybe)reception...similar to a splitter(only in reverse)
In 7100's case only one input port can be used for signal gain boost in case anyone tries to use this antenna
Sent from my GT-N7100 using XDA Premium HD app

Ok, but the question is still: the cell connector is...?

I've also found this:
i.imgur.com/QRvxlkB.jpg
With a single connector (phone side) and it's noticeable that phone and antenna connector aren't same kind.
Also... FME is a threaded connector while phone side there isn't thread.

@carsco
The FME connector i.e the threaded one isn't used to connect to the port on the phone but rather it is used to connect external antennas(yagi antenna etc.) to the cord,the smaller connector then is used to connect the port on the mobile device,I just dont know what is it called...

akp.ajinkya said:
I just dont know what is it called...
Click to expand...
Click to collapse
I've understood that the FME connector is on the antenna and not on the phone. OK.
The question of this post is, still: what's the name of the connector on the phone?
Still open question.

I don't suppose anyone found this?
I'm trying to setup an external aerial for an old Note 2 I've got so I can use it as an LTE modem.
EDIT: Found one in the UK http://www.ebay.co.uk/itm/271750904962
Just in case anyone else comes here looking

[Q] Any solutions for QI wireless charging Zerolemon battery?

The zerolemon battery covers the standard pinouts to the QI wireless receiver for wireless charging. Does anyone have a solution, workaround, modification or source for a QI receiver that would work? It is so convenient just to put a phone on a stand and top it off, even with the massive 10,000 mah battery. I am NOT interested in anything that involves soldering anything to my precious phone, or modifying the phone in any way, just the receiver. Thank you in advance for any thoughts!

ebrinkis said:
The zerolemon battery covers the standard pinouts to the QI wireless receiver for wireless charging. Does anyone have a solution, workaround, modification or source for a QI receiver that would work? It is so convenient just to put a phone on a stand and top it off, even with the massive 10,000 mah battery. I am NOT interested in anything that involves soldering anything to my precious phone, or modifying the phone in any way, just the receiver. Thank you in advance for any thoughts!
Click to expand...
Click to collapse
Maybe one of these cheap charging pads can be modified instead of your phone? They dont seem to have one specifically for the note 4 yet on here, but for $6 thats a pricetag you dont have to cringse about when you srtart soldering on it..
http://www.fasttech.com/search?qi inductive charging receiver patch for note 4
Hope it helps.

Basically you have to extend the contacts from the phone back. You don't need to solder. You can do it with double stick foam tape, masking tape, adhesive copper braid or sheeting and the adapter. My adapter has not arrived yet so I am not sure it will fit between the Zerolemon battery and the case back. I did something similar to get NFC working with my Zerolemon on my Note 2. Once my adapter gets here I will report if I am successful and the fix is safe and dependable.
Sent from my SM-N910V / VZW Note 4 DE / Factory Bootloader Unlocked / Rooted / StarKissed / TWRP 2.8.1.1 trltevzw

lexbian said:
Maybe one of these cheap charging pads can be modified instead of your phone? They dont seem to have one specifically for the note 4 yet on here, but for $6 thats a pricetag you dont have to cringse about when you srtart soldering on it..
http://www.fasttech.com/search?qi inductive charging receiver patch for note 4
Hope it helps.
Click to expand...
Click to collapse
I have 3 pads that fit the original note 4 and work with it, I'm open to any suggestions on how to extend the flexible flat cable -- I can't find a way to do in online anywhere!

ebrinkis said:
I have 3 pads that fit the original note 4 and work with it, I'm open to any suggestions on how to extend the flexible flat cable -- I can't find a way to do in online anywhere!
Click to expand...
Click to collapse
Similar instructions can be found by googling...note 2 zerolemon nfc fix.
Sent from my SM-N910V / VZW Note 4 DE / Factory Bootloader Unlocked / Rooted / StarKissed / TWRP 2.8.1.1 trltevzw

Don't Modify Anything
Instead of modifying things just use this simple device available on Amazon. Make sure the output matches the requirements of your device before you purchase or it will not work. This is the one I purchased for use with my LG G3 and the ZeroLemon case with the extended battery and it works just fine. You still do not get the NFC capability, but the wireless charging works. But then who actually uses the NFC anyway?
Just search on amazon for micro USB Qi antenna or wireless charging antenna. (the forum won't let me post the link)
This adapter is very easy to install and adds the Wireless Charging / Qi charging back to your phone. Amazon has several versions, just make sure you get the one that has the correct configuration on the plug, either small side up or small side down, and you also need to make sure you get the one with the correct output. For the Lg G3 it is the one with small side down, 5v-1000ma output to make it work properly.

KevinLdrbck said:
Instead of modifying things just use this simple device available on Amazon. Make sure the output matches the requirements of your device before you purchase or it will not work. This is the one I purchased for use with my LG G3 and the ZeroLemon case with the extended battery and it works just fine. You still do not get the NFC capability, but the wireless charging works. But then who actually uses the NFC anyway?
Just search on amazon for micro USB Qi antenna or wireless charging antenna. (the forum won't let me post the link)
This adapter is very easy to install and adds the Wireless Charging / Qi charging back to your phone. Amazon has several versions, just make sure you get the one that has the correct configuration on the plug, either small side up or small side down, and you also need to make sure you get the one with the correct output. For the Lg G3 it is the one with small side down, 5v-1000ma output to make it work properly.
Click to expand...
Click to collapse
The Zerolemon battery covers the ports, making the standard Qi receivers not able to attach to them, that's why we need a different solution.

ebrinkis said:
The Zerolemon battery covers the ports, making the standard Qi receivers not able to attach to them, that's why we need a different solution.
Click to expand...
Click to collapse
Actually, that is not true. I have installed the exact item I was talking about, and it works perfectly fine. The cover over the port does not fit "air tight" over the port and has plenty of room for the adapter to fit between the cover and the phone. This is why I had suggested the item in the post.

KevinLdrbck said:
Actually, that is not true. I have installed the exact item I was talking about, and it works perfectly fine. The cover over the port does not fit "air tight" over the port and has plenty of room for the adapter to fit between the cover and the phone. This is why I had suggested the item in the post.
Click to expand...
Click to collapse
The Note 4 Qi contacts are in 2 places. The upper one, just to the side of the camera, is not covered by the Zerolemon Battery, and does not pose a problem for connecting, but the one next to the battery IS completely covered by the battery itself. Maybe I'm missing something? I don't care about NFC, but would really like the Qi charging feature. If you know of an item that would work, please PM me a link. Thanks!

In case anyone's still wanting to hack a Qi coil on a Zerolemon battery, it works just fine. Here's a step-by-step with pictures. http://traff.as/zerolemonqi

traffas said:
In case anyone's still wanting to hack a Qi coil on a Zerolemon battery, it works just fine. Here's a step-by-step with pictures. http://traff.as/zerolemonqi
Click to expand...
Click to collapse
Not for a Note 4, different contacts (won't work).

I really thought I was in the G3 forum...sorry about that.

They make a qi receiver now that plugs in the charger port of the phone and then flips back to the battery door it's on amazon like 15 bucks. Place case over it to protect receiver and phone any your good to go. I'm sure this will work just fine for ya there a universal qi receiver for tablets and phones with no battery door.

Here is a pic for you.

QI wireless charging wireless not compatible with I9301I

Just a reminder. Samsung Galaxy SIII Neo I9301I is NOT compatible (by default) with SIII I9300 wireless chargers, as it does not have required pins. You can adapt it, of course, but requires some skills.
It's not a software problem, it's more a "hardware" problem:
For example, look a this post (I'm not the author, but I don't want to "steal" the photo):
http://the-gadgeteer.com/2014/01/10/julies-gadget-diary-hacking-my-samsung-galaxy-note-2/
The S3 (the old one) have those pins. S3 Neo DOES NOT HAVE those pins.

KAOZ23 said:
Just a reminder. Samsung catalog SIII Neo I9301I is NOT compatible (by default) with SIII I9300 wireless chargers, as it does not have required pins. You can adapt it, of course, but requires some skills
Click to expand...
Click to collapse
How to adapt it ? If it's possible tell us how

Yesterday i installed this micro usb pad which fits and works perfectly!
HTML:
gadgets4geeks.com.au/WebRoot/Master/Shops/gadgets4geeks/Products/M3-X02/micro-usb-qi-receiver-card-02.jpg
(I cannot post an image since this is one of my first posts, so you have to copy and paste the link above to see the image )
Drawback is that you cannot use the usb port anymore, but i use "ftpdroid" for transferring files from my phone and "wifi adb" to remote connect to adb, so i don't use it anyway.
Also it seems that the mobile signal decreased a little bit, which i think is strange since it only covers the battery, and the antenna should be the bottom part of the phone

rtbravo said:
Yesterday i installed this micro usb pad which fits and works perfectly!
HTML:
gadgets4geeks.com.au/WebRoot/Master/Shops/gadgets4geeks/Products/M3-X02/micro-usb-qi-receiver-card-02.jpg
(I cannot post an image since this is one of my first posts, so you have to copy and paste the link above to see the image )
Drawback is that you cannot use the usb port anymore, but i use "ftpdroid" for transferring files from my phone and "wifi adb" to remote connect to adb, so i don't use it anyway.
Also it seems that the mobile signal decreased a little bit, which i think is strange since it only covers the battery, and the antenna should be the bottom part of the phone
Click to expand...
Click to collapse
joke? its no solution

Maybe not for you, but for me it has been the perfect sollution in the last month, no problems whatsoever.

I am waiting the wireless charging pad. I already got the QI universal wireless receiver. When I get it I will try to tell you if it's working.

Wait i am making wiriless kernel

The problem is that the SIII Neo doesn't have the required pins, it's not a kernel or software problem.

QI wireless for the Z1C....

Okay... i´m trying to make a mod for my Z1C to make it qi compatible....
I have the magnetic connector from a dock (which is broken).
So, using the connector + cover + glue can make it work.... and of course, need to solder the receiver to the connector....
But, the big question... which receiver should i use?
First of all, i´m from Argentina... so i have a limited access to receivers.
I´ve seen here receivers from Samsung Galaxy S3, S4, S5, Note III and Note 4, and a few others generic...
The maximum current that could find was 650mA... but read some comments that the output 1000mA is a lie... and there is no difference between the receivers...
So, which one should i buy?
Thanks to all!!

Finally, get a 700mAh receiver, and cutting out the cable, mixing + soldering + glueing it all together, and now it´s working....

Samsung GS4 1000mA QI receiver
I have a few Galaxy S4(1000mA)/S3(800mA) QI receiver cards.
The cards are different depending on the contact points location in the phones.
So you just soldered the internal magnetic charging points to a QI receiver card inside the phone?????
If you have the QI Receiver inside the phone (only real place for it), how much pressure does that place on the back cover??
The back cover tends to break away from the frame without much effort, so having the raised 'bulk' of a Qi card in the phone would only add to the pressure for the back cover to separate.
On Samsung phones (GS4 which I've added QI cards) it does take a bit of brute force to chip the back cover on again and some GS4 aftermarket cases/covers can not be used with the QI card installed due to the back of the phone being ever so slightly raised.
I have the QI receiver cards, glue seals rings for Z1C back cover and the Qi chargers and it is something I have thought about, but with three working magnet DK32 docks around the house, it's not something I have advanced at this time.
Well done for getting it to charge via QI charger if that is what you've done.
Maybe a photo would be nice.

Okay... now, the photos:
The tape is over the receiver module.
The original contacts from the receiver were removed, and over there, was soldered some copper tape (that can be seen in the photos).
The contacts were made by opening-cutting a magnetic cable, soldering it to the copper tape, and then glueing it to the cover, to maintain position.
The charger seems to be very picky about position. Searching over the internet, seems to be a common issue with this model...
Hope it´s usefull...

Well... about the charger, there seems to be an easy fix to it's pickiness... Take off the upper side... That way, the thing will gone a cool itself, and the connection will become a lot easier...