If SD card is defined as secondary root path, and it probably is, then speedcam.spdb file is created in primary location, in sub-folder content\speedcam, but such folder must exist too.
In that primary root folder already exists original sys.txt, so writing another on SD card is useless, original must be changed.
BTW, more info about program, complete folder structure (not only SD card) and original sys.txt is needed.
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