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Jl381a Firmware

Instruct the switch to boot from the partition containing the new firmware.

boot system secondary

(If you uploaded to primary, use boot system primary).

Version: 2931_03116_20191128 Date: 28-Nov-2019 Classification: General Availability (GA)

Look at the top marking on the chip. It might say JL381A or JL381A V2.0, JL381A V3.1. Different silicon revisions have different voltage tolerances and boot vector addresses. jl381a firmware

How to find:

Since the firmware lives on an external SPI flash, you can program it directly using a CH341A, FT2232H, or Raspberry Pi GPIO.

You will need:

Steps:

Timing tip: Set the CH341A speed to “Slow” (under 1 MHz) to avoid bus errors with long wires.

Via CLI (console or SSH):

show version

Example output:

Image stamp:    /sw/code/build/rel_date (build_id)
Boot Image:     Primary
Version:        KB.16.11.0010

Via Web GUI:

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