Flashing Instruction:

Before flashing I recommend to reboot the router. Nand devices with longer uptimes can hit a bad memory block while flashing.

Netgear OEM Firmware         -> choose the correct .chk for your router model in ftp directory Initial. 

			    (A chk contains a header that identifies the build as suitable for the specific router model, oem firmware check this header)
			    
			    
Asus/Linksys/Buffalo         -> first flash initial flash files provided by BrainSlayer

DD-WRT already installed -> flash universal build dd-wrt.v24-K3_AC.bin (suported models Netgear R6300/WNDR4500 V1/V2,D1800H, Asus AC66U, Linksys EA6500V1 ) 
			    from subdirectory that contains the latest revision. 
			    (Once dd-wrt is installed you can flash universal fw .bin files for the right architecure, e.g. Broadcom AC router, afterwards)

			    



Flashing back to Netgear Firmware is supported in builds >= 22127. Just use the dd-wrt webinterface and upload netgear firmware.