: The status LEDs on the main board will begin flashing rapidly. This indicates the system is actively reading the file and flashing the flash memory. Do not interrupt power during this phase.
(If you want, I can produce a concise checklist or a printable step-by-step guide tailored to SL1000 firmware file names and GUI menus.) nec sl1000 firmware upgrade
In the left sidebar, select "Software Update". : The status LEDs on the main board
Always remember to consult your certified NEC technician or authorized distributor if you are uncertain about the firmware versions or if you encounter errors during the update process. nec sl1000 firmware upgrade