I'm having a lot of problems installing CHDK on an SD card. I tried stickx.sh, but it claims the card is write-protected (it is definitely NOT).So, now I'm trying to follow "Method 2 - Using CHDK itself to make the SD card bootable." The item 8 in the instructions contain advice "Turn on your camera by pressing the Play button (or using the Play switch on some cameras). Do not start the camera with the On/Off switch or this process will not work." However my A470 does not have a "Play" button or switch. And indeed the process does not work using the On/Off switch, although I can bring up the <ALT> menu and complete the remaining steps. But of course the it will not boot to the CHDK menu.
I think I was misled by the sentence "Do not start the camera with the On/Off switch or this process will not work." On old models or those without a "Play Button", it appears that it will indeed work of you start the camera with the On/Off switch.
FYI:When I reported success installing and using CHDK on my A470, I neglected to mention that I was using an old Sony 2GB SD card that I found on ebay, Fat 16. So, I tried to install CHDK on a 16GB, FAT 32 ScanDisk SDHC card, nut the installation process was unable to make the card bootable. Nevertheless, the motion detect script seemed to work after running the firmware update procedure. Perhaps the HC cards are not compatible.
Naturally I also tried it on a 128 GB ScanDisk "Extreme" (whatever that is) card; attempting to format evoked "Memory card error" and the camera turned itself off.So, I guess the lesson is to not use more advanced cards?
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