Hello ,
I wanted share an interesting that I came up with . I have sucessfully installed the CHDK to my SX170IS cameras but I have four cameras whoose serial number are starting with 6 (others start with

. I can t install chdk to these cameras because there is no option to update firmware in camera settings menu. I have used EOSCard method to make SD card bootable but this time camera does not start.
Do anyone else faced this problem before and have any solution ?