Nexus 7 Touchstone Mod (Part 1)

First step: Find a suitable place on the back cover for the coil ...

It seems that any metal (including the copper heatsink or the NFC antenna) conflicts with the touchstone induction process.  The picture shows one place on the back cover which is plastic-only and allows for successful induction.

I may later decide to locate the coil more centrally, and just remove the copper heatsink material around the coil.  I'm also thinking that securing the coil to the battery rather than the back cover will allow for easier back cover removal in the future.  I haven't decided yet whether the magnets should be attached to the battery or the back cover - it probably makes no difference either way, as long as the coil ends up correctly aligned when the cover is replaced.

[ Continue at Part 2: http://goo.gl/HQsk5 ]

Related Links
Nexus S Touchstone Mod: http://www.flickr.com/photos/rwhitby/sets/72157628557489531/
Lumia 800 Touchstone Mod: http://twitpic.com/9jevyp
Galaxy Nexus Touchstone Mod: http://forums.androidcentral.com/verizon-galaxy-nexus-accessories/147840-guide-galaxy-nexus-mod-palm-touchstone-no-soldering-phone.html
Other Touchstone capable devices: http://twitpic.com/9jqyiq

-- Rod 
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