HELP I have a CA21WS version I created both files the SN.txt changing the CN to US and created a blank engmode file and not really sure if they copied to the SD card for sure or not. I put the SD car in the camera then powered it on and it comes on and goes directly to recording no Engineering menu comes up? When I was copying the files to the SD card I got a pop up menu that said the card was not formatted and if I want to format, but I chose no because everywhere I read online posted do not format first??? Can anyone help with this issue that may have had the same problem and resolved it please?