Brother DCP-B7640DWB FAQs
Question: The message "Retry Updating by USB", "Retry by USB" or "Try updating by Firmware Update tool." appears on the machine's LCD when the machine is turned on.
FAQs Category
A guide to navigating our most common questions
Download the latest drivers, utilities and firmware.
View DownloadsView or download manuals for your product.
View Manuals