Hello, i passed this phone to my father, he was on latest "MIUI 9.2-9.2.2.0 Slim on COOLPAD F1" by jpower73, this morning, my father told me, his phone crashed all of a sudden and then he was stuck in boot loop, funny thing is that i can get to recovery but when i try to wipe ceche /dalvik i get this message "failed to mount `/ceche` (invalid argument)
Any help?