Hi Yes USB LED blinking cc. 1 minute, then 3 short beep, auto shutdown, rebooot. 2 USB pen (TDK 8 GB, 128 MB old) flashed. Z5WE1X64.fd 8 MB (hdd_boot)
1 minute is not enough, try again to flash the mod. Another method for flashing the modified BIOS (for this laptop) is unknown to me