Remove Sailfish

To remove Sailfish and restore your device back to factory settings, flash with:

flasher -f -F main.bin --erase-user-data=secure -F emmc.bin --erase-mmc=secure

i try it many times without success, still on the yellow triangle.

i also try this
< flasher -F main.bin -F emmc.bin -f >

< flasher -f -F main.bin --erase-user-data=secure -F emmc.bin --erase-mmc=secure >
but no luck