Perhaps you should consider reading docs before you try out new software ?
Trial-and-error might be an easy way to learn but you get stuck as soon as you run out of options.
The dos type (or identifier) is the connection between the filesystem and the partition. All partitions with the same dos type use the same filesystem. The file system identifier must be unique in the system.
If you change the dostype of SmartFileSystem from CFS/0 to SFS/0, you must also change all partitions from CFS/0 to SFS/0. And vice versa, if you change the partition dostype, you must change the file system dostype either.
Also, if you use CFS/0 for SmartFileSystem on one hdd, CFS/0 must be SmartFileSystem on all other of your hdds.
And of course you still should use SFS 1.190 to get back your data.
Bye,
Thomas