The Syli National displayed some grit to win the match at the Reunification Stadium in Douala to win the bronze medal of the tournament designed exclusively for home-based players.
Talented Guinea playmaker Morlaye Sylla put his side in an early lead before with striker Mamadouba Camara doubling the advantage on the stroke of half-time.
The Guinea goalkeeper produced one of the finest saves of the tournament in the 82nd minute when he dived to his left to parry Anthony Mfede’s well-taken free-kick from a distance which ended any hopes of a comeback for Cameroon.
The final will be played on Sunday when title holders Morocco take on Mali at the Ahmadou Ahidjo Stadium in Yaounde.