Huawei Switch Firmware Upgrade - ((better))

Always test rollback in lab first.

Major version jumps often invalidate old licenses (e.g., V200R010 to V200R020). Fix: Generate a new license file from Huawei’s License Center using the switch’s ESN ( display esn ). Upload it via: bash <Huawei> license active LIC_S5720_2024.dat Huawei Switch Firmware Upgrade

Disclaimer: Firmware versions mentioned (e.g., V200R021C10) are examples. Always consult the official Huawei documentation specific to your chassis model. Always test rollback in lab first