You start searching for the latest firmware version for your device, scouring the internet for reliable sources. After some time, you come across the official ZKTeco website, which seems to have a dedicated section for firmware downloads.
You click on the download link and save the firmware file to your computer. The file is in a compressed format (e.g., ZIP or RAR), so you extract it to obtain the firmware upgrade file (usually with a .bin or .fw extension).
You navigate to the firmware download section and enter the model number "K40 Pro" in the search bar. After a few seconds, the website displays a list of available firmware versions for your device. You find the latest version, which is labeled as "V3.2.2" (or similar).
You recently purchased a ZKTeco K40 Pro, a popular biometric time and attendance terminal, but you're facing issues with its performance. The device is not functioning as expected, and you suspect that the firmware might be outdated.