Information sources for KK2 Guide Pro
KK2 Default firmware section. Respect for Rolf R Bakke (these days HobbyKing has it's own KK2 so they don't have to pay royalties for Rolf)
http://www.hobbyking.com/hobbyking/store/uploads/181270330X7478X47.pdf
http://www.hobbyking.com/hobbyking/store/uploads/672089481X667872X37.pdf
OpenAero2 section. Respect for OpenAero team:
https://code.google.com/p/nextcopterplus/wiki/OpenAero2_Getting_Started
https://code.google.com/p/nextcopterplus/wiki/OpenAero2_Adv_UserGuide_V2
http://www.hobbyking.com/hobbyking/store/uploads/181270330X7478X47.pdf
http://www.hobbyking.com/hobbyking/store/uploads/672089481X667872X37.pdf
OpenAero2 section. Respect for OpenAero team:
https://code.google.com/p/nextcopterplus/wiki/OpenAero2_Getting_Started
https://code.google.com/p/nextcopterplus/wiki/OpenAero2_Adv_UserGuide_V2