Sorry to hear that etermel, it's crazy that we can't get the 3x3 grid only the 4x4 grid. I'll try to get an answer & let yo know when I do !!! for sure.
Hi Etermel, I've just got a new 90d & having the exact same viewfinder problem as you, with just & off & on option with a 4x4 the only grid available when picking the "on" option. How exactly did you solve the problem, would love to know as 4x4 optio...
