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Xperia ARC induction wireless charging mod

OP chouck

25th January 2012, 02:33 AM   |  #1  
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Just finished the Sony Ericsson Xperia ARC induction wireless charging mod
http://www.pbase.com/xperia_mods/xpe...n_charging_mod

Pls look at this reference video to get an idea what you are going to get and what it takes:
http://www.youtube.com/watch?v=0ga4N_Ih9GE

Parts you will need for this mod:
* Palm Pre back cover and Touchstone dock (8-15$ on eBay)
* Self-adhesive copper foil
* thin wire
* small star and maybe Phillips screwdriver
* thin soldering iron
* solder
* 2 ohm SMD (1/8 or 1/4w) resistor is needed to balance on peak. Will not work without it.

Guide to open the phone(you don't need to open it all the way as on that video! Just few first steps): http://www.youtube.com/watch?v=ae-WQkNh8mE

MIND two restrictions:
1) this induction wireless charging will not work from PC or Laptop USB plugs (at least for me) looks like cradle needs a bit higher voltage then 5v. As USB is usually below 5V (~4.8). It can be due to the presence of resistor.
2) it won't work through almost any case / jacket / cover if you put it on you ARC. As it becomes too thick to let induction and magnets alignment work. for this you need to put induction coil in your case as I did for RAY http://www.pbase.com/xperia_mods/xpe...n_charging_mod

Q: Will it interfere with any phone functions and radio modules (GSM, WCDMA, WiFi, BT, GPS ...)
A: NO all works as good as before.

Q:Is this really worth opening your phone, and probably damaging it?
A: It is up to you. For ARC I'd say it is worth opening as you need to open only one back cover, no modules disconnect, connect etc. If you feel experience in opening the small electronics and soldering go ahead!

Q: Also, what about the charging times? Is it as slow as USB charge, or almost as fast as wall outlets?
A: Charging time is almost as fast as wall outlets. Charging current is around 350 mAmps

Q: Can I use it in the car
A: Sure!

Q: where do we have to put the resistor?
A: just in line of + or - like in this sample
http://www.pbase.com/xperia_mods/image/141117444

Q: Will my Micro USB port work after mod?
A: Yes it will work as good as before and you can charge through it as before

Q: the cover is closed complete after install?
A: Yes, you will not notice a difference from the outside

I HOLD NO RESPOSIBILITY IF YOU DAMAGE YOUR PHONE OR YOURSELF DURING THE PROCEDURE!
This mod might void your warranty! Though I don’t think a SE repair man will be able to find traces of this mod on first sight if removed cleanly.
Last edited by chouck; 28th January 2012 at 09:03 PM.
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26th January 2012, 09:40 AM   |  #2  
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Very interesting, but where do we have to put the CMS resistor?
26th January 2012, 03:06 PM   |  #3  
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Quote:
Originally Posted by butchy93

Very interesting, but where do we have to put the CMS resistor?

just in line of + or - like in this sample from RAY
http://www.pbase.com/xperia_mods/image/141117444
26th January 2012, 06:57 PM   |  #4  
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Is this really worth opening your phone, and probably damaging it? Also, what about the charging times? Is it as slow as USB charge, or almost as fast as wall outlets?
27th January 2012, 01:56 PM   |  #5  
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Quote:
Originally Posted by sdk16420

Is this really worth opening your phone, and probably damaging it? Also, what about the charging times? Is it as slow as USB charge, or almost as fast as wall outlets?

For ARC I'd say it is worth opening as you need to open only one back cover, no modules disconnect, connect etc
charging time is almost as fast as wall outlets
mind two restrictions
1) this induction wireless charging will not work from PC or Laptop USB plugs (at least for me) looks like cradle recognize that it is USB and not just power supply and shuts off
2) it won't work through almost any case / jacket / cover if you put it on you ARC. As it becomes too thick to let induction and magnets alignment work. for this you need to put induction coil in your case as I did for RAY http://www.pbase.com/xperia_mods/xpe...n_charging_mod
Last edited by chouck; 27th January 2012 at 02:01 PM.
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27th January 2012, 08:42 PM   |  #6  
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I love these kind of mods. It is it's time ahead. It probably won't take too long before stuff like this will be general.
28th January 2012, 05:17 AM   |  #7  
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Quote:
Originally Posted by ndrs

I love these kind of mods. It is it's time ahead. It probably won't take too long before stuff like this will be general.

all toothbrushes have it for almost a decade, but only one mobile phone and one HP pad....
28th January 2012, 04:36 PM   |  #8  
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and the cover is closed complete after install?
28th January 2012, 09:01 PM   |  #9  
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Quote:
Originally Posted by terra-nova

and the cover is closed complete after install?

Yes, you will not notice a difference from the outside
31st January 2012, 08:37 AM   |  #10  
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Looks very hard to me..........

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