You can obtain the official update through several secure channels: HP N75 System Firmware 01.57 Driver for HP
The N75 firmware family is primarily designed for the following HP business laptops: HP EliteBook 828 G3 HP EliteBook 840 G3 HP EliteBook 848 G3 HP EliteBook 850 G3 Key Enhancements and Fixes in Version 01.57 hp n75 system firmware 01.57 download
: Improves general UEFI stability and hardware communication. You can obtain the official update through several