yes i know the setting UNMOUNT
I found it ; it was my USB KEY Kingstone 8gb = doesn't work in OTG ? !!!! i was sure that i used it before
i tryed with my USB Patriot 16gb (Fat 32of course) and OTG access is OK from TWRP 2.8.6.0 for LEO
Thank you my friend , you push me to test "all"
i...