Logitech Keyboard not Working? 5 Solutions to Fix It Now
Amazon.com: Logitech K330 Wireless Desktop MK320 Keyboard With Wireless Mouse Combo — Entertainment Keyboard and Mouse, 2.4GHz Encrypted Wireless USB Connection, Long Battery Life MK320 Combo : Electronics
User manual Logitech MK330 (English - 148 pages)
How to Repair a Logitech MK320 Keyboard and Mouse Combo Signal/ Power Board - YouTube