If you have a network connection to the PBX, you can use the SL1000 PCPro application.
This method allows for remote or networked updates without needing physical access to the internal board. nec sl1000 firmware upgrade
: Create a folder named SOFTWARE on the root of the SD card and copy the firmware files into it. Power Down : Turn off the SL1000 main processor unit. If you have a network connection to the