OP-1 boot menu / adding samples not work

I have some month old OP1 and it works, but if i try go boot menu only get "Rev. 12203 (modified)..." text and nothing happend. Also if i try copy sample to flash, got text "0x172cd40 reboot. 1 file changed..." and nothing happend.. only what i can do is power off, but no new sample there. whats wrong?

Sample problem solved, by copying all orginal files from backup to op1, after that adding samples works. so something was corrupted? But still can’t go bootloader menu… aaargh!! any tips?