My camera is Canon Ixus 70. I check original firmware and downloaded CHDK firmware but I have a problem with this CHDK firmware. Accordirng to your manual I downloaded new firmware which is in *.BIN extension. But there is sentence from manual "Put your firmware files PS.FIR and DISKBOOT.BIN into the same folder as the uploader". Where are those PS. FIR and DISKBOOT.BIN considering that I downloaded only some file named "primary_sd1000_102a.bin".
Anyway I copied this "primary_sd1000_102a.bin" to my SD card but there was no additional menu or some other expected changes.
Where and what I did wrong?
Thank you for your help and undestanding in this matter.