TP-LINK TL-WR840N v1 (China only?)

Overview
v1.1 model on the the DD-WRT forums
 * Presumably the same as the TP-LINK TL-WR841ND v7.x
 * F4:EC:38 OUI

Flashing dd-wrt
Supported by dd-wrt as of = tl-wr840nv1 build 17990 20111209

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