crwdns2934241:0crwdne2934241:0 Pierre
crwdns2934249:0crwdne2934249:0:
Sierra is possible on this machine if you upgrade the CPU: https://lowendmac.com/2016/macos-sierra-on-low-end-macs/ That leaves then the question of the most adequate replacement for the WIFI card, which is a required update for the whole upgrade to work
crwdns2915684:0crwdne2915684:0:
open