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I like hacking stuff together and my next project I'd like to make my own dock for my HTC Sensation. It's a fairly simple project, but the bit I can't work out is how the Sensation knows it's in a dock and launch it's dock app.

I've seen other phones that use magnets or switches, but how does the HTC Sensation do it?

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On HTC phones I think it often involves connecting pin 4 (ID) on the dock's USB plug to pin 5 (ground) with a resistor, but I'm not sure if that's how it works for the Sensation. There's a bit of discussion on XDA but there's not a lot of definitive information: forum.xda-developers.com/showthread.php?t=1232229 –  eldarerathis Apr 22 '12 at 22:57

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