A non-verified update is a gamble. A verified update is a guarantee. Keep your EW6800 firmware verified, and your printhead will deliver millions of reliable drops.
Download the verified update files from the manufacturer or a trusted community source. : ew6800 firmware update verified
However, to give you the correct and specific information, I need a little more context — "EW6800" could refer to different devices from different brands. A non-verified update is a gamble