MFC-L3770CDW
![]() |
FAQs & Troubleshooting |

MFC-L3770CDW
Search by Keyword(s)
Categorized
How To / Troubleshooting
Setup / Settings
Consumables & Accessories / Routine Maintenance
Others
Popular
Updated:13/03/2025
These are the most viewed FAQs, ranked by popularity.
- 1.Setup a Brother machine on a wireless (Wi-Fi) network.
- 2.Replace the Drum Unit
- 3.Set Telephone Line Compatibility for Interference and VoIP Systems
- 4.The scanned data is attached to an E-mail application which I do not use regularly, or the error message indicating no default E-mail application is registered on my computer (CC4-121-[error code]) when trying to scan a document directly into my E-mail application using ControlCenter4 or the SCAN key on my Brother machine.
- 5.I cannot repair the wired or wireless connection using the Network Connection Repair Tool (Windows)
Latest
These are the latest FAQs, sorted by last update date.
11/03/2025
What is the default password for my Brother machine?
03/03/2025
What is the default password for my Brother network card, BRAdmin, Remote Setup or Web Based Management?
19/02/2025
I cannot scan a document using Brother iPrint&Scan (Windows/macOS)
19/02/2025
Scan a document using Brother iPrint&Scan. (Windows, macOS)
19/02/2025
My Brother machine is unresponsive.