Frage: Keys h-l don´t work always - is this definitely a hardware problem?
Using my keyboard on my 17 inch MBP 2011, keys H, J, K, L on my German keyboard won´t react most of the time. Before I buy a new keyboard, is there a chance that this might be a software/ settings root cause? I´ve already deactivated the mouse feature for the arrow keys and exchanged the battery because these were two reasons I found might be suitable (and I needed a new battery anyway). Any ideas that might be helpful?
MacBook Pro, macOS Sierra (10.12.6)