When upgrading the firmware in XW or Conext SW in an off-grid scenario, there must be continuous communication between the computer and the Combox
during the upgrade process. If there is a generator available, make sure the system is bypassed to provide AC power to the router (if used), or set up your computer
for direct connection with the Combox (see attached tech note). Since the Combox causes the inverter to enter STANDBY during the upgrade process, loss of power
to the router will interrupt the upgrade and there will be no way to recover the unit without XW Config Tool.