Logitech K780 Frequently Asked Questions

 When the device is paired in Unifying mode, it’s not possible to perform keystroke
assignments.
If you encounter these issues, check to see if Secure Input is enabled on your system. Do
following:
1. Launch Terminal from /Applications/Utilities folder.
2. Type the following command in Terminal and press Enter:
ioreg -l -d 1 -w 0 | grep SecureInput
 If the command returns back no information, then Secure Input is not enabled on the
system.
 If the command returns back some information, then look for
"kCGSSessionSecureInputPID"=xxxx. The number xxxx points to the Process ID (PID)
of the application that has Secure Input enabled:
1. Launch Activity Monitor from /Applications/Utilities folder.
2. Search for PID which has secure input enabled.
Once you know which application has Secure Input enabled, close that application to resolve the
issues with Logitech Options.
 +K780 keyboard does not work or loses connection frequently
 Keyboard isn't working
 Keyboard frequently stops working
 Before reconnecting your keyboard
 Reconnect your keyboard
Keyboard isn't working
In order for your keyboard to work with your device, the device must have built-in Bluetooth
capability or be using a third-party Bluetooth receiver or dongle.
NOTE: The K780 keyboard isn't compatible with a Logitech Unifying receiver, which uses
Logitech Unifying wireless technology.
If your system is Bluetooth-capable and the keyboard isn't working, the problem is likely a lost
connection. The connection between the K780 keyboard and the computer or tablet can be lost
for several reasons, such as:
 Low battery power
 Using your wireless keyboard on metal surfaces
 Radio frequency (RF) interference from other wireless devices, such as:
o Wireless speakers
o Computer power supplies
o Monitors
o Cell phones

Logitech K780 Specifications

General

Purpose	Universal
Hot keys	Yes
Key pitch	19 mm
Noise level	45 dB
Certification	CE, FCC, CB
Frequency band	2.4 GHz
Keyboard layout	QWERTZ
Pointing device	No
Device interface	RF Wireless + Bluetooth
Keyboard language	Swiss
Number of hot keys	9
Key travel distance	2.2 mm
Keyboard key switch	-
Keyboard form factor	Full-size (100%)
Connectivity technology	Wireless
Keyboard number of keys	107
Keyboard keys technology	Scissor
Keyboard keys operating life	10 million characters
Battery capacity	1000 mAh
Power source type	Battery
Battery technology	Alkaline
Keyboard battery type	AAA
Service life of battery	24 month(s)
Number of batteries supported	4
Number of batteries (keyboard)	2
Mac operating systems supported	Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.15.3 Catalina, Mac OS X 11.0 Big Sur, Mac OS X 12.0 Monterey
Other operating systems supported	ChromeOS
Mobile operating systems supported	iPadOS, iOS 11.0, iOS 11.4, iOS 12, iOS 13, iOS 14.5, Android 7.0, Android 7.1, Android 7.1.2, Android 8.0, Android 9.0, Android 10.0, Android 10
Windows operating systems supported	Windows 10, Windows 11
Wireless range	10 m
Material	Metal, Plastic, Rubber
Product color	Grey, White
Keyboard style	Straight
Mean time to failure (MTTF)	150000 h
Package type	Box
Package depth	400 mm
Package width	169 mm
Package height	33 mm
Package volume	2231 cm³
Package weight	1084 g
Wireless receiver interface	USB Type-A
Quantity per pallet	528 pc(s)
Master (outer) case width	274 mm
Master (outer) case height	185 mm
Master (outer) case length	410 mm
Master (outer) case volume	20800 cm³
Master (outer) case weight	9200 g
Harmonized System (HS) code	84716060
Master (outer) case GTIN (EAN/UPC)	50992060649617
Quantity per intermodal container (20ft)	10752 pc(s)
Quantity per intermodal container (40ft)	22272 pc(s)
Quantity per intermodal container (40ft, HC)	25984 pc(s)
Storage temperature (T-T)	-40 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Channels quantity	3 channels

Weight and Dimensions

Keyboard weight	875 g
Keyboard dimensions (WxDxH)	380 x 22 x 158 mm