changing the recovery model from full to simple

Hi All,

I got a task to change the recovery from the full to simple on development servers.

Please let me know what are the precautions to be taken to change the recovery model from full to simple.?

I suggested to take a full backup, before changing the recovery models.(i heared some where, it is best practise to take full backup before and after changing the recovery model, hence i suggested this step). But my teamate said, just triggering the manual checkpoint is enough.

Please let me know, was my suggestion correct?

Thanks

K