Yes, it's safe to delete any .cia file after installing it. But you should keep the files accessible in your pc just in case.i finally got my sysnand to 9.2 and emunand to 10.6, is it safe to delete the updates folder that contains the 9.2 firmware data from the downgrade?
alright thanks, i made backups of the folder on my pc beforehand, just needed some clarificationYes, it's safe to delete any .cia file after installing it. But you should keep the files accessible in your pc just in case.