Link: http://www.ehirobo.com/walkera-wk-devo-s-mod-devo-8-or-12-to-devo-8s-or-12s-upgrade-module.html

Link: http://www.digikey.com/product-detail/en/AWA24S/748-1003-ND/1687150

*4.0.1 and earlier: Connect 10→3.3v, 11→3.3v, 12→GND. Leave 3 and 4 floating

After 4.0.1, connect 10→11→2 and 3→12

Link: http://www.buychina.com/items/2-4g-module-cyrf6936-pa-lna-module-cyrf6936-20dbm-module-uuruunslkhi

*4.0.1 and earlier: Connect 11→GND and 12→3.3V. Leave 3, 6, 7, and 8 floating

After 4.0.1, connect 7→11 and 8→12