HOW TO UPGRADE CODE USING ZMODEM FILE TRANSFER (SDL2)

Symptoms: How to upgrade code using Zmodem File Transfer (SDL2)

• Upgrade failed while using TRAM to do the software download.

Facts: SuperStack II Remote Access System 1500

• Zmodem File Transfer
• SDL2
• Software Download

Fixes: Use Zmodem file Transfer to complete the flash upgrade using Console connection.

1. Use DB-9 to DB9 console cable and open Hyper Terminal select 38400, 8-n-1-hardware,

2. Unplug the power on RAS1500 and then plug back the power.

3. Press Esc keys 4 times when system starts.

4. Type AT{H} to halt the boot sequence.

5. Type AT{Z} to load the rasboot.dmf. Then the flash sequence will start. After boot flash complete, RAS will reboot,

6. Use AT{Z} one more time to load ras1500.dmf. After running through this process, the flash upgrade will be completed.

7. Use “show system” to confirm the system version.

• Product(s): SuperStack II Remote Access System 1500
• Sub Product(s): None set

— David Gonzalez 2021/04/09 11:27