[4] He played a crucial part in the Andalusians' side that reached the final of Copa del Rey Juvenil de Fútbol in 2012; however, he himself missed the decisive game against RCD Espanyol (1–0 loss) due to suspension.

[10] On 20 January 2014, he cut ties with Málaga – after rejecting the offer for a revised and improved contract counseled by his agent Pini Zahavi[11]– and joined Apollon Limassol FC from the Cypriot First Division,[12] being immediately loaned to S.V.

[13] In February 2015, Apollon loaned Olinga to Romania's FC Viitorul Constanța, with the transfer being superseded by UC Sampdoria who had too many non-European Union players in its ranks.

[14][15][16] On 11 April of the following year, his compatriot Eto'o called a press conference in which he announced he was taking the Italian club to court for what he perceived as an unfair treatment of Olinga, going as far as claiming both signings were related.

[24] He was selected by coach Volker Finke for his 2014 FIFA World Cup squad at the age of 18,[25] being the youngest player in the competition but remaining an unused member as the tournament ended in group stage exit.