Before I brick my RBK50 again, I wish to confirm and double confirm that we need to be on firmware 2.5.2.4 in order to use RBK50-V9.2.5.2.9SF-HW
I tried to flash RBK50-V9.2.5.2.9SF-HW to a 2.6.1.40 and had to ran and RMA. Lucky for me the dealer had a stock for 1 to 1 exchange.