The LG G5, released in 2016, was a highly anticipated flagship device that boasted a unique modular design, a 5.3-inch Quad HD display, and a powerful Qualcomm Snapdragon 820 processor. However, many users of the LG G5, particularly those with devices sold in the United States and other regions, encountered a frustrating issue that rendered their devices unusable: a bootloop.
from the official manufacturer's support site (ensure the model number matches exactly). lgenx9 firmware fixed