Sony today officially released the new firmware update version 1.01 for Sony A9 mirrorless camera to improve the overheating warning functionality. There was some speculation that the warning came from the SD card in the second SD card slot, someone also said the Sony a9 users can solve the overheating issue using the battery grip with extending temperature option “ON”. Follow the link below to download the Sony A9 firmware 1.01.
Download link: Sony A9 Firmware Version 1.01
This utility updates the camera firmware to version 1.01 and improves the overheating warning functionality.
Read more: Best Lenses for Sony A9.