Unfortunately I have no idea about Android (and can barely install on my old phone) but I saw this what one user did. He said he has phone in debug mode.
"for future reference i was able to just use file explorer on windows 10, navigating to this folder ~\Internal shared storage\android\data\com.katanavn.fatescollide\files\saves then navigated to here ~\Internal shared storage\android\data\com.fatescollide.release\files\saves renamed persistent to persistent.old and then pasted the contents"