PN532 USB: "mfoc -k <code> -O dump.img" not working

[tutan7]

Hi guys,

Im using android device and when I try to use mfoc with "mfoc -k -O dump.img" im receiving the error: "Cannot open: dump.img, exiting".

Im able to mfoc a blank card and then the app suggests to save the dump. MFCUK is working perfect.

How can I fix the issue with mfoc?
I tried somehow to manually generate the file but without success.
Tried to "touch dump.img" and "pwd touch.img" but without success.
Tried "mfoc -k <code? -O - | echo > dump.img" but without success.

Thank you in advance guys!