Don't. Just don't. G502 HERO firmware update through G HUB is broken. Waited for over 1.5h with the mouse "updating" and not working, and at the end had to disconnect and reconnect
Why you should really, really update your Logitech wireless dongle - The Verge
Logitech releases 25,600 DPI software update for several HERO gaming mice | TechSpot
Logitech g602 software and firmware update, connection utility
G Pro Wireless Mouse Firmware Update Problem : r/LogitechG