When downgrade failed on S5700-28X-PWR-LI-AC running V200R002C00SPC100

Issue Description

Switch:
VRP (R) software, Version 5.120 (S5700 V200R002C00SPC100)
Copyright (C) 2000-2015 HUAWEI TECH CO., LTD
HUAWEI S5700-28X-PWR-LI-AC Routing Switch

downgrade to V200R001C00SPC300 failed.

Alarm Information

error that we have received when trying to set the new system software as startup was:

startup system-software s5700li-v200r001c00spc300.cc
Error: Upgrade basic-bootrom failed.Software does not match this device.
Error: Failed in upgrading bootrom, next step is copying file. Continue?[Y/N]:Y
Error: The file is not supported by the device.
Info: Failed in setting the software for booting system.

Handling Process

S5700-28X-PWR-LI-AC is new on the market and was designed to support new features

available only on the newer versions. So actually the first system-software and only available

for this model is V200R002C00SPC100 and V200R003C00SPC300.

Root Cause

Suggestions

Upgrade to V00R003C00SPC300.