yashsingh1/xdaforums huggingface dataset:
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
Ok.......um for some odd reason I cannot post any pix, the form says I need to be logged on (which I am...) I feel like a noob...
[T-Mobile Samsung Galaxy S II SGH-T989] xxKamikazexx:
Are you on your phone? The app is crap when it comes to posting certain images
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
some pix...and what not...

[/IMG]

ok...all i have left is to acquire some copper tape and open up my unit and lay down the tape. Then get the touchstone and see if it works....i will keep yall posted...what the hell i cant post any pix...
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
Ok I still haven't figured out hire to send pix but here's an update. I was able to install the copper trace that connects the coil to the charging circuit all I have left is to acquire a touch stone to see if it works
[T-Mobile Samsung Galaxy S II SGH-T989] locoboi187:
We finished this November for Sprint's galaxy s2. Check out our forums
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
Congrats! I will check it out just in case I did something stupid (which I am pron to do....)
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
I’m wondering. Couldn’t you just run the contacts from coil to the positive and negative pins on the device where the battery makes contact?
[T-Mobile Samsung Galaxy S II SGH-T989] scuzzbag87:
need pics the ones in the other page are broken links. dude how hard is it to just borrow a friends phone to record and take some pics.
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
Ordered the Pre cover and Touchstone. Hopefully they get here soon. Gonna try and make it as clean as possible with no wires from the phone to the cover. Try and keep it more like the High WAF Wireless Inductive Charging Mod.

Will post instructions and PICS
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
its not that, being that i am a stay at home father i just simply hadnt had the time with 4 little ones running around and working full time, time is in short supply

---------- Post added at 11:22 PM ---------- Previous post was at 11:18 PM ----------

take a look at what i had done, it does not require you to solder anything, and unless you are really good at soldering i wouldn't suggest it. The method that i had stumbled upon does not require you to void yer warrantee nor does it break any seals so if something happens later on and you have to get it replaced then you don't have to worry ya know????
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
Curious about leaving it on the charger overnight. Wondering if there's a way for the phone to know its full and stop or if it'll continue to charge. Thinking it might be a problem as its not passing through any resistors.

If it works this is much easier than soldering.
[T-Mobile Samsung Galaxy S II SGH-T989] yajinni:
I was kind of thinking this. Putting it directly to the battery worries me some. I feel like it would over charge it. Correct me if i am wrong ofc. But it would be nice if there was more input on this.
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
i am only "slightly" worried and this stems back from when i had a (please dont laugh..) htc wizard and the usb port no longer worked...and since my soldering skills where not up to par at that point in time what i had done was to take twist tie and stripped them down to make wires. In my infinate (sp) wisdom i looped the wires around the battery contacts of main board and then clipped the wires of a spare charger (like i said not my finest moment....). After figureing out which is the proper terminals for charging i put the battery into the unit and then wired it to the charger... Low and behold it worked (until the battery terminals snapped....) But until then the unit didnt over heat and/or short out. now i am not advising this but i didnt noitce any harm...(wasn't until later i figured out that i could of gotten an external battery charger, but thats another story...)
[T-Mobile Samsung Galaxy S II SGH-T989] premiatul:
Thanks for a nice tutorial Rastlin!

I have a question...

Where can I get the charging surface for it?

And how much it costs?

Tomorrow I will go to buy all the things, if I can find them.

Wish me luck!
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
ITS WORKING...

It took some courage but finally did it. It's not as hard as everyone thinks. USB port still works. NFC still works. I don't notice any difference in charging from the touchstone and usb. The back does bulge out just a bit. I can feel the difference when the phone is laying flat on it's back.

This is assuming you have all the necessary parts.

Copper Foil

Solder / Solder iron

30 gauge wire

Pre back cover (for coil)

Touchstone charger

Check my post earlier to see a video of how it was done on the original galaxy. It's very helpful.

1. Remove the battery door

2. Unscrew the 6 screws

3. Once removed, using an old credit card, work your way around to remove the back cover to expose the board. Take your time.

4. Using your finger nail, disconnect the highlighted points

5. Slowly remove the board off from the housing

6. Once removed, turn it over to expose your soldering point. I chose to use the resistor. The USB pins are to f-n tiny to solder. Just make sure to solder it to the side of the resistor and not the top. BE CAREFUL NOT TO FRY IT. (my soldering sucks which is the reason i decided to go with the resistor)

7. HERE'S WHAT NOT TO DO. DON'T SOLDER IT TO THE TOP.

8. Instead, solder it to the side

9. Once soldered, run the wire along the right side

10. Connect the 4 connectors removed from step 4

11. Cut the wire to length

12. I don't have a pic of it, but solder a piece of copper foil to the end of the wire.

13. Position the back cover and tape the foil like so

14. Snap the back cover in place and screw

15. Using the coil from a pre cover, position everything in place. Cut 2 L shapes using foil and position as so. The shorter one is for the positive and the longer one is to ground. The top contact point on the coil is positive and the bottom is for the ground. Cut enough to wrap the foil around.

16. Solder the foils to the contact points

17. Position the coil on the back with the battery door off. Put the batter door back on so the coil will adhere to it

Quick vid of it here
[T-Mobile Samsung Galaxy S II SGH-T989] jekyl87:
Amazing work smellmyfingers !

Gonna try it next month when I gather all the parts. Would this affect the battery life in any way ?
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
Haven't noticed any difference yet. Then again haven't had this for a very long time. Cause its so easy, I find myself putting this thing on the charger all the time now. Not to worried though since replacement batteries are so cheap.
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
Nice work, I too have an update. My beautiful wife acquired the energizer version of the wireless charger with pad from our local thrift store and I will place pics and what not. I wil keep yall informed on what happens. The main reasion why I am choosing a non distructive mod is for this reason. I will have to replace my phone son due to the vibrational moter ceasing to function and when I replace it I wont recieve any flack fr Tmobile or Samsung...
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
I am very curious. If it works than all that work for nothing :(
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
well after several hours of work and massive strings of cusseword, unfortunaly the energizer mod has failed (at least comming from the battery... i am going to try yer method but mod that alittle bit so that i dont have to use any solder..reasion being i am going to replace my phone here very soon (like i am calling tmobile on tuesday...) and request a replacement. With that being said i cannot have solder points and what not in my device so i am going to contiune to work with the copper tape although i did learn one thing apparently current does not like to run through the adhesive part of the copper foil and it's alittle thicker than the palm coil (i will attach pix on the morrow of the coil....) Hopefully i can have a success and that would be awesome!!!! wish me luck everyone
[T-Mobile Samsung Galaxy S II SGH-T989] yajinni:
OMG this is exactly what i was looking for. I needed this solder point. I will be preforming a similar mod and will post once all my parts come in. Thanks!
[T-Mobile Samsung Galaxy S II SGH-T989] Wareazy:
PALM TouchStone

$4.00!!!!!!

http://www.amazon.com/Palm-Touchstone-Charging-Dock-Pre/dp/B002CMEIWK
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
nfc interference.....

well one thing i can tell you for a fact is that the induction coil does not interfere with the NFC coil. i have the energizer partly installed and i had the palm touchstone installed and almost complete and neither interfered with the coil in any way shape or form, so no worries there ^_^
[T-Mobile Samsung Galaxy S II SGH-T989] ThatGeekGuy:
Sweet! Ordered a combo from Amazon with back and dock for $10, and an extra dock (link above) for another $4. $15 for inductive charging at home and at work? Priceless....

http://www.amazon.com/gp/product/B002CMEIWU/ref=oh_details_o01_s00_i00
[T-Mobile Samsung Galaxy S II SGH-T989] CrashUK:
Hi does this mod only need one wire?? in your picture I only see one wire being soldered.. I like this mod but I think going to try puting in side a case with a mini-usb plug.
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
Just one will do. Once you get over the fear of tearing apart the phone it's quite simple.
[T-Mobile Samsung Galaxy S II SGH-T989] CrashUK:
I have open up the phone and found a point on the phone to solder but I need a smaller tip and some solder flux as the solder would not take. but it may not be needed as people have reported they are some changing points on the battery input.. they also a card comeing out in the US that is a wireless changing upgrade that fits on top of the battery for the s2. So going to look at the battery inputs...
[T-Mobile Samsung Galaxy S II SGH-T989] android88:
Awesome! How much did it cost? Also, can I still charge with micro USB?
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
Sure can charge via USB. Total cost was about $20ish which included shipping for everything.
[T-Mobile Samsung Galaxy S II SGH-T989] HyperEscape:
Gathering the courage to do the mod to my beloved regular S-II white. Just about to order the stuff from Amazon, so before taking the leap of faith, have the following queries,

1. The regular S-II after this mod will still have the normal plastic back cover. So will it stick magnetically the angular charging base, or would it keep sliding down, which infact makes the whole mod useless. How will it stick and stay with the base, (cause the original palm pre cover is magnetically inclined i guess).

2. I already have an extended regular size Anker 1900mAH battery in S-II, which is just a tad thicker the regular battery. So if i do this mod, will it be possible with the Anker battery to insert the plastic back cover and let it clip in the grooves cut on the sides. Would it bulge too much , or even to the extent that the back cover will not fit in the clips in the grooves.

Thanks for your answers.
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
You'll still use your existing back cover. The phone is held by magnets. Can't lift a car, but strong enough to keep the phone on the charging base. The coil itself will add a slight bulge to the back cover. I would think it would be too much to fully snap the cover back on. However, I do use the Anker 2050mAh which is the same exact size as the OEM battery.
[T-Mobile Samsung Galaxy S II SGH-T989] thejonesyboy:
Galaxy S II i9100 Wireless Charging Mod

I did this to my phone. I have the i9100T, which is the same as the i9100 international variant. I removed the battery cover entirely and made use of the space between my hard snap on case and the battery.

I used copper foil tape (eBay) to make the copper traces. I placed route from the +5v USB connection to the battery compartment using thin strips next to the top of the resistor, leading out to toward a thicker folded copper strip that heads to the battery edge of the pcb. I soldered over the thin trace to increase the current handling capability. Another folded strip leads to the grounded chassis screw. These two connections pair with the full width strips on the case. These run to the underside of the coil circuit strip, where two small square plates are pressed onto the copper strips. I glued a very thin rubber strip to the top side to ensure the connection. The metal studs, coil and circuit are glued to the case. I'd recommend tape also for water/moisture protection.

See the photos of what I did below:

https://www.dropbox.com/sh/866jkbv5lypoxmw/ySteboQ0XF#/
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
Now that was an awesome mod congrats I was thinking of another way of doing it without having to solder the resistor, especially with my crappy soldering gun that takes 15 minutes just to heat up and to solder and tin one piece of wire.... :D
[T-Mobile Samsung Galaxy S II SGH-T989] everythingsablur:
Source or links? I'd be interested in a simple no-mod plug in induction charging back. I loved the TouchStone with both my Pre3 and TouchPads, but have gotten used to plugging into microUSB with my SGS2. The Lumia 920's Qi wireless induction charging has me intrigued at WP8 as well (the crazy camera on that phone doesn't hurt either, but I digress, OT.)
[T-Mobile Samsung Galaxy S II SGH-T989] abraham.ramirez:
I want to try this, but im also thinking of getting a extended battery for my phone (anker 2200mah). My worry is that the battery will add some bulk and so will the mod. Would the back cover still fit? Would i need to mod a case instead of the back cover and leave it out? Any thoughts on this
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
I have in my phone, although incomplete, is the qi coil which is slightly thicker than the one from the Palm pre and the hp version in terms of the circuitry. I guess I can only speak from using the coil of a blackberry though..........I would Imagine that the new ones coming out for the 920's would be thinner......
[T-Mobile Samsung Galaxy S II SGH-T989] rkaede:
http://www.youtube.com/watch?v=C3dEKcojEQE

WiCC
[T-Mobile Samsung Galaxy S II SGH-T989] jackflap:
Anyone try the following?

www . exportprive.com/en/battery-chargers/21636-anymode-samsung-wireless-charger-set-for-samsung-galaxy-s2.html

Is it real?
[T-Mobile Samsung Galaxy S II SGH-T989] amjath:
I'm did this project during my college days but failed [used basic Nokia phone].

Planning to start again but this time I wanted to solder the receiver wires to the board rather than using charger pins. Wish me good luck.
[T-Mobile Samsung Galaxy S II SGH-T989] premiatul:
It might be....however, I will NEVER pay $155 for that....you can buy a new phone with that money....lol...

:good:
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
Agreed......I saw that and my jaw about broke my damn foot....
[T-Mobile Samsung Galaxy S II SGH-T989] Evilhik:
First attempt to do it Failed............. Burn some components now touch buttons do not work .. woot now in the shop getting a quote and repaired and see where it goes from there ! wish me luck guys !
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
Good luck! But what happened that you burnt some of the componets? Where you using the solder method out the solder-less method.....
[T-Mobile Samsung Galaxy S II SGH-T989] ocdavid:
Rastlin,

I didn't see anyone ask this yet, but I wanted to know how the charging rate was on the mod. How long does it take to fully charge the battery as opposed to the standard plug in charger?
[T-Mobile Samsung Galaxy S II SGH-T989] xxKamikazexx:
+1 and is there a risk of like "overcharging/damaging" your battery since it's not being charged through the usb port?
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
That's a good question, one I personally don't have the answer for. What I am not sure of is if there is circuitry built into the battery not not. What I was able to glean off the solder method was that apparently there's a resister that you connect to but then on the other hand there quite a bit of circuitry connected to the induction coil. Also if you look at other devices with induction charging some seem to connect directly to the battery (those that have it built in) while those that you add to seem to have to go through the normal way of charging so I am not entirely sure until I can get my hands on a device that does it natively that world and test the voltages on the device then do some path tracing. Line sorry short I don't have the best necessary equipment to test my theories so for now connect to the resister
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
Using the solder method to the resister, it does know when your full and stops charging. You even get the pop up message saying the battery is full.

As for the time to a full charge, haven't really measured it. With about 10% before I go to bed, which is about 12 or 1 am, I have a full charge when I wake up, about 5:30ish.
[T-Mobile Samsung Galaxy S II SGH-T989] Evilhik:
well bad news i took it to a cell phone repair shop (CPR Cellphone repair) and it seems like they cant fix it. :( according to them i fried some component some where on the board and they cant find it . I went for the left most pin soldering method and well after that it was just trying to clean up my mess and while doing so my soldering iron wanted to send power through out the board and fry some components i should of tried your method of the resistor but i did not . my only hope now is to make it look like the phone broke on its own and have it send it to t mobile or Samsung to get it fix any advice would be appreciated thanks guys !!!
[T-Mobile Samsung Galaxy S II SGH-T989] rastlin:
I question the intelligence of the cell phone repair people, let me explain is the unit is getting power and charging then I understand. It not then the first place I would look would be the microusb port. If voltage is going through there then follow the path. Secondly soldering irons do not produce any power what so ever. They produce heat which is what melts the solder. So if anything that needs to be replaced as long as the main board was not damaged and assuming that it's not multilayered would be the componets like the resistors and what not. Now the componets could have been damaged by heat I can see that, or if you where not properly grounded I can see a static discharge fine. But to say that the soldering iron did it with electricity, no.....sorry that does not happen.......

---------- Post added at 08:29 AM ---------- Previous post was at 08:27 AM ----------

The only thing I can think of to help is to make sure that you find leave any traces of solder work and call T-Mobile for a replacement good luck and let us know what happened
[T-Mobile Samsung Galaxy S II SGH-T989] rocfire:
Just replace usb board

Looks like you can replace just the usb board. "i9100 usb dock flex cable on ebay" Check out the iFix it tear down for details.
[T-Mobile Samsung Galaxy S II SGH-T989] Evilhik:
Went to a T-mobile store and used my premium handset warranty so i am getting a replacement !!! :) Now time to try soldering to the resistor and making sure i am grounded properly i have also looked over the phone for any traces of solder people at the cell phone repair shop could not even tell much until i told them. Will update when i get the phone and try again !
[T-Mobile Samsung Galaxy S II SGH-T989] xxKamikazexx:
Hope all goes well for you this time around :thumbup::beer:
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
Good luck
[T-Mobile Samsung Galaxy S II SGH-T989] Evilhik:
this time around i manage to get it to solder on the resistor but nothing happend i did every thign right,,,, then i guess i would try the left most pin solder again........ Bad idea...... Do Not try the left most pin method,, unless u can acctually get solder to only the left most pin..... but i Do Not reccommend ! As for now i have a newly recevied broke no touch button T989 ,... Although this time around i made sure that i did not burn any thign and only worked with the Usb port . some how it causes the problem of touch buttons not working .. any advice would be very helpful at this point because this is my second phone .... and i doubt tmobile would send me another one
[T-Mobile Samsung Galaxy S II SGH-T989] whassupmyninja:
Greetings from skyrocket land... i come in piece lol. Anyone have the rate of charge? Does it charge in AC mode (1 amp) Ive got all the materials but its useless for me if it cant output more than 500mah (kernel wakelocks) Thanks.
[T-Mobile Samsung Galaxy S II SGH-T989] jdkzombie:
I am really stoked for this. Is the process yet simplified enough for an average joe to perform.
[T-Mobile Samsung Galaxy S II SGH-T989] Evilhik:
ok I found out the problem with soldering to the left most pin, if you cant it solder to only that left most pin it will short out the pins and make your touch buttons not work (You have been Warned and to fix it you have to get a new phone) . also i did the solder to resistor method and checked power going through the whole setup all the way to the resister and i got nothing so if any one could please enlighten me on that it would be helpful .. my last chance to get this to work is the solder less method.

update us on what you did , because i would like to know what in the hell am i doing wrong lol
[T-Mobile Samsung Galaxy S II SGH-T989] shivark79:
I had a few questions on non solder mod

1. Roughly how much time does it take to charge the battery completely?

2. What is trace patterns? What does it do on top of the coil

3. How to correctly place the magnets on the back cover

Last but not the least did anyone try the guitar chord mod?

S
[T-Mobile Samsung Galaxy S II SGH-T989] Evilhik:
1 . i have no idea since i could not get the solder-less method to work.

2. trace patterns are just so u know where the foil will be at when u put the back cover on

3. i would suggest on how to place magnets on the cover properly, just place the coil and magnets on the battery and then just place the cover on (what i did is i put the magnets and coil on the touch stone first to make sure every thing was aligned properly and kept it that way)

and i have no idea on what the guitar chord mod is .
[T-Mobile Samsung Galaxy S II SGH-T989] shivark79:
Thanks for the response on point 2 and 3.

The OP or jester can answer or those who did the solderless mod can answer my point 1.

I just need a rough estimate. Since its been more than 6 months that this thread has been active I would like to hear all the cons of doing this mod before I take he big leap
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
As for the charge rate, I think it's a couple of hours before a full charge. Have't really measured it though. Although, last night I was at about 5%. Went to bed at 1am. Woke up at 5:40 with a full charge. I would venture to guess you're probably looking at about 3 hours for a full charge.

Evilhik - can you post some pics of the solder point on your resistor?
[T-Mobile Samsung Galaxy S II SGH-T989] whassupmyninja:
Can you type this in on a terminal emulator when charging?

divide what you get by 10 and that will be your current mah.
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
Odd. I get zero
[T-Mobile Samsung Galaxy S II SGH-T989] whassupmyninja:
You have to be charging. When you are charging, put that in the emulator
[T-Mobile Samsung Galaxy S II SGH-T989] jester450:
I'm assuming by 2

2564 charging via USB

2377 charging via wireless
[T-Mobile Samsung Galaxy S II SGH-T989] whassupmyninja:
By 10.
[T-Mobile Samsung Galaxy S II SGH-T989] thantos:
Just wondering if this option is safe? I'm worried about taking the board too much apart.. I've had bad luck with flex cables...