There are usually two ways to update the G-97rg6w firmware:
If you are performing a manual update (usually provided by a technician):
A power loss during this process will brick the device. Use a UPS (Uninterruptible Power Supply).
A known bug in version 4.0.0 to 4.1.2 involving the "Smart Roaming" assistant. Fix: Upgrade to 4.2.1 immediately. If you cannot upgrade, disable 802.11k/v under Advanced Wi-Fi settings.
Leaked developer notes suggest the following for version :
The new firmware replaces the legacy Flash-based interface with a reactive HTML5 dashboard. Latency monitoring and real-time traffic graphs are now native.
