[MOD] T-Mobile Note 2 wireless charging mod
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Another great question is can we use the Nexus 4 orb with a QI receiver and a couple thin magnets (solder a wire from the board to the gold contact of course).
-edit- ordered 2 1000mah QI receivers and 2 GN4 charging pods. I won't get my QI receivers for about a month though from China
-edit- ordered 2 1000mah QI receivers and 2 GN4 charging pods. I won't get my QI receivers for about a month though from China
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Another great question is can we use the Nexus 4 orb with a QI receiver and a couple thin magnets (solder a wire from the board to the gold contact of course).
-edit- ordered 2 1000mah QI receivers and 2 GN4 charging pods. I won't get my QI receivers for about a month though from China
where did you order the QI pads? do they fit under the stock battery door without making things look ridiculous?
Replacement board option
Hey everyone, I continued trying to solder a wire to the connection on the USB board and due to my inexperience and foolishness I ended up shorting something and it kept sparking (thankfully I had the USB board separate from the phone) so I don't trust the USB board anymore. I looked extensively online for a T-Mobile specific replacement and couldn't find one but found an almost identical one for the N7105 on eBay. I decided to order it to try out and it just arrived. I eagerly tore my phone apart and installed it and BAM the phone starts up and charging works great. This obviously doesn't help with wireless charging but if something happens to the board it's nice to have a replacement option.
It took about 9 days to arrive to me in California. Here's the link if anyone is interested:
http://r.ebay.com/vtNtyE
Hey everyone, I continued trying to solder a wire to the connection on the USB board and due to my inexperience and foolishness I ended up shorting something and it kept sparking (thankfully I had the USB board separate from the phone) so I don't trust the USB board anymore. I looked extensively online for a T-Mobile specific replacement and couldn't find one but found an almost identical one for the N7105 on eBay. I decided to order it to try out and it just arrived. I eagerly tore my phone apart and installed it and BAM the phone starts up and charging works great. This obviously doesn't help with wireless charging but if something happens to the board it's nice to have a replacement option.
It took about 9 days to arrive to me in California. Here's the link if anyone is interested:
http://r.ebay.com/vtNtyE
eBay... Check the accessories thread on wireless charging. You'll still need to solder the wire on any T-Mobile Note2, but qi charging does work.
Sent from my GIANT internet thingy.
I have done a powermat wireless charging on our beloved Note 2 here:
http://xdaforums.com/showthread.php?t=2158978
http://xdaforums.com/showthread.php?t=2158978
I'm pretty sure judging by that pop up and his battery cover that he has an n7100, not t889...
Sent from my GIANT internet thingy.
Hi all sorry I didn't mean to mislead y'all. You should be able to use powermat instead of palm.
So it looks like there are plenty of Qi pads out there for the N7100 variant of the Note 2. Who in here has got that working? Seems like it would just be the same thing with different tech.
You can use the Qi receiver, but it has the same issue as any other receiver, you need to make that connection or it won't work. Bummer that TMO gimped it.
It's not entirely T-Mobile since AT&T has the same physical device, but it is strange. Why go out of your way to break a feature?
Edit: oops, not the case.
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Yeah, I have both my Tmo Note II's working with QI receivers and Nexus 4 orbs. It only charges at 500ma unless you use a kernel that alters it. I charge at 1A with Perseus kernel. It's a lot stronger field than the touchstone setup. I charge through my thick 2 piece Seidio case no problem :good:
I am a little sick, so maybe I am being dumb here, but if this board works, that doesn't allow you to use wireless charging, right? The board doesn't have anything to do with the wireless charging circuit, correct? No one else asked and I am not sure if it's because people already figured out the charging board doesn't matter (searching only found that some people had problems with some boards) or if no one asked yet. Googling seems to say N7105 works with wireless charging.
The board does nothing different, it is exactly the same as the tmobile USB board. There is still the possibility of connecting a wire to the +5V connection on the board like in the original mod but I'm not willing to try soldering it again yet.
Sent from my SGH-T889 using Tapatalk 2
Sent from my SGH-T889 using Tapatalk 2
I'm using the green Qi receiver from Ebay, and Metrans MWT02 transmitter.
After the mod, didn't work well couple times, the charging stop after 10-15 minutes, maybe because it got too hot, I can feel the back cover is a bit more than warm. Maybe it got something to do with the metal plate for my I Magnet, removed the plate, and able to charge at least for an hour and I took it off to check the battery charged from 48% to 62%, didn't feel warm at all.
After the mod, didn't work well couple times, the charging stop after 10-15 minutes, maybe because it got too hot, I can feel the back cover is a bit more than warm. Maybe it got something to do with the metal plate for my I Magnet, removed the plate, and able to charge at least for an hour and I took it off to check the battery charged from 48% to 62%, didn't feel warm at all.
i tried this hack with a "Powermat" brand charging kit as well. pulled the receiver coil from a blackberry Powermat case and tested it to output 5V when touching the pad.
without soldering the tiny wire internally, it does nothing as expected. after the wire is soldered in, the battery icon shows charging, but the battery level does not go up.
battery monitoring widgit shows discharging still. Internal settings show connected to USB and charging, but i doubt its correct.
I am using Jedi X11 ROM.
i didnt like the way the phone casing couldnt close completely so I am abandoning this project till i can find thinner wire.
also i am not sure what kernel Jedi X11 uses.
without soldering the tiny wire internally, it does nothing as expected. after the wire is soldered in, the battery icon shows charging, but the battery level does not go up.
battery monitoring widgit shows discharging still. Internal settings show connected to USB and charging, but i doubt its correct.
I am using Jedi X11 ROM.
i didnt like the way the phone casing couldnt close completely so I am abandoning this project till i can find thinner wire.
also i am not sure what kernel Jedi X11 uses.
Here's my QI charging rates with the Sons of Android ROM
Little less than half of real world OE ac charging bit for overnight charging or while sitting on the desk at work its very good :thumbup:
Little less than half of real world OE ac charging bit for overnight charging or while sitting on the desk at work its very good :thumbup:
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Here ya go! Keep in mind that this is my wireless volt mod (as in, the way I did it) and as such, any improvements are welcome! I'm very happy with the mod so far. The phone did a full charge over night with no problems. It was very nice just to pick it up off the touchstone this morning! But as usual do this at your own risk! The person doing the mod should be reasonably proficient at soldering small joints. Just be careful and this will work for you. Instructions are on the JPG! Any questions please ask! Verified working on the stock kernel and stock charger. :good:6This is a fork of the original N7100 Note 2 wireless mod thread found here:
http://xdaforums.com/showthread.php?t=1951493
The purpose of this thread is to determine why the wireless charging pins on the T-Mobile Galaxy Note 2 (SGH-T889) are not working after installing the MOD above.
Please view the thread above for more details about the original MOD, and to see what you need to do first in order to continue with the work around below.
Updated method on 8-5-2013: Thanks to SGBE
The updated method has a better solder point. See that thread OVER HERE.
Results:
The Work Around: (verified working on multiple devices)
We have a mod to make wifi charging work! Regardless if the T-Mobile GN2 is missing hardware or not, the work-around is a low cost (free?) alternative to get wifi charging working. Our work around involves soldering a small wire to a tiny point on the micro usb board. You should be able to solder a very small connection (about the size of a pen tip) before attempting this.The mod/workaround below is verified working with the stock charger and stock kernel. <- Pay attention to that last bit.
Workaround Known Issues:
Some kernels have a charge rate which is set too high for the PALM PRE Touchstone to work with. Likewise, some non-oem chargers can not deliver enough amperage to continuously charge the device wirelessly through the Touchstone. Therefore, if you have any problems (disconnect/reconnect proble), be certain that you are using a stock charging rate (kernel controlled) and a stock Galaxy Note 2 Charger (2,000mA). If you are still having problems check your mod for trouble, and finally post up and maybe someone can help you.
The Mod / Workaround:
(also attachment #3 on the list below)
The full work around post is on page 3.
New Information:
If you have new information on a hardware or software fix then it will be added here. Until that time, proceed with the workaround at your own risk. Once again, the work around instructional image is HERE.
WARNING: What was claimed to be a fix in the section below did not work, and ultimately people wasted money on bogus hardware. It is here for historical reference.
The Fix
You may need to purchase some missing hardware.
See page 7 for details (you need to replace the flex cable and micro-usb board): http://xdaforums.com/showpost.php?p=34380437&postcount=65 The SKU number for the board is MBRPSS964.
(the false wifi charging image is only attached for historical reference)
Picture legend:
- Sprint GN2 chip (the chip is missing on T-Mobile's version)
- Sprint GN2 pin pads
- Wifi Charging work around instructions
- Completed work around example.
- alternate view of work around charging pin
- alternate view of work around +5vdc source
- Picture of the wi-fi fix working (reported that this may be a fake!)
Older info:
Some steps that I've personally done:
Completed the wireless mod above, confirmed wireless voltage reading of 5.56vdc.
Tested continuity between USB positive, and wireless positive - no connection.
Tested continuity from the negative wireless charging pin to the negative USB, SIM slot, various screws - they are connected.
Jumped the positive post on the USB to the wireless charging positive pin, the phone charges but is not practical to have a wire hanging out of the USB port.
I plan to pull apart the phone and check the paths from the positive and negative ports on the wireless pins. Attached is a picture from a SPRINT GN2 that does not have the pins, but supposedly works for charging once contact is made with the pads. I'm going to be using this to compare the circuit against my T-mobile version.4As it stands now, I jumped the USB 5vdc internally with a tiny wire, over to the wireless positive pin. It's working, although it was a tough mod. But it is totally internal so I guess this will have to do for now. So I have wireless charging (kind of, it works teh same as USB) on the T-mobile Note 2 now. If anyone wants to do the same thing, post up a pic of the board by the USB plug and I'll label the connector that you can use for the 5vdc source. The reason it's a tough mod is because you have to solder a small connection to the board under the capacitive touch buttons. It took me about 4 hours to find a good power lead on the board and make it all work internally!3
Circuit Pens not recommended for this mod. Grounding issues and reliability issues with conductive pens. To answer your question directly, I have tested with my conductive pen and it is difficult to maintain a path for any significant distance. These pens are probably good for minor repairs though, just not this mod. The path is pretty long and even if a conductive pen could be used, the risk of shorting is pretty high. It may be possible to use conductive tape, but reliability issues are likely.
I'd like to take this opportunity to mention that the original mod which I posted is still going strong on my phone. Cheers!3Hey gang. Wanted to update every one of you on this thread because we were able to get it to work on the Note II on the T-mobile network with a very simple fix that required no wiring, etc. It did, however, require that you purchase a Dock Charging Board Flex cable part that fits perfectly on the bottom of the circuit board. It will cause no functional changes to your phone, either. Wireless charging works in addition to plug-in charging.
Because I'm a new user, I can't post links to the purchase store where I bought it but you can go to the website: China Gadget Land and do a search for charging flex cable n7100 - that one result is the one you are looking for. The SKU is: MBRPSS964
Those of you who still want a link can just PM me to find out info about it. I'm also on twitter: @aaldere1
The main difference between the two you can see by the picture attached. The default T-Mobile flex cable has 3 pins on the upper left corner, while the purchased one has two, plus a bit of a difference in circuitry.
We thought originally that this woudln't work but there isn't any functional difference in the phone at all with this part. Again, this is a T-Mobile Note II. Works great.
The good news is that this flex cable can be interchanged with your default one so if something doesn't work you won't have to severely modify your phone to get it back.
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