To perform a firmware upgrade, you will need specific tools, the most important of which is PCPro, NEC's proprietary programming software.
Once the transfer concludes, the system will prompt a reboot to apply the changes. Expect your office phones to temporarily lose connection for a few minutes. Method 2: Upgrading via SD Card
For businesses still relying on the NEC SL1000 Go to product viewer dialog for this item. nec sl1000 firmware download
Always request the accompanying Release Notes PDF along with the firmware file. This document details the exact upgrade path and alerts you if an intermediate firmware version must be installed first. Prerequisites Before Upgrading
Press and hold the S1 switch on the main KSU while turning the AC power switch ON. To perform a firmware upgrade, you will need
The system status LEDs on the main board will flash rapidly while the firmware is being written to the flash memory. Do not remove power.
Dial to display the Main Software version and Hardware Key Code. Should You Upgrade to the NEC SL2100 Go to product viewer dialog for this item. is discontinued, many businesses are migrating to the NEC SL2100 . The Method 2: Upgrading via SD Card For businesses
Even experienced techs fall into these traps. Avoid them: