Brother MFC-L5750DW - brother l5750dw i am looking for help

Hello to everyone,

I need to replace my printer board,
i am doing this alone since my board was (literally!!!) broken (so i have no warranty)
in the "service manual" it's says that i need utility named "BrUsbsn",
all the "BrUsbsn" that i found on the web was outdated,
i need BrUsbsn.zip that will fit for my brother l5750dw,
can someone here can help me please?,

many thanks.

Jest to oprogramowanie dostępne tylko dla serwisu producenta


This software is available only for the manufacturer's service

Never mind,
i successfully managed repair my serial number without using brusbsn utility,

You can download the "mfc-L5750dw SERVICE manual and go to page number "5-56", you will find full instruction .

Pytałeś o program a nie zmianę / wprowadzenie numeru seryjnego
To można zrobić bez programu jak sam zauważyłeś.


You asked for a program instead of changing / entering a serial number
You can change / enter s/n without program.

when you got a new BLANK motherboard for your brother printer the serial number is "111111111111111",
you need to change it to your real serial number that you will find on the back of your printer,

you know how to change the serial number without software?
if yes, why do i need the BRUSBSN utility??

for expample,
here my REAL serial number:

You can download service manual and find maintenance menu -> write new serial number without service software.

galiax
Your printer is on warranty !

Standard 636 36 Mo OS 48 hrs incl Mainten. max 200000
warranty : 01.09.2016 01.09.2019

Why you want change your s/n without Brother service ?

Your printer is mono/color ?

SERVICE MANUAL

my printer was accidentally fall from the desk so the motherboard, part's of the plastic case and the scanner glass was BROKEN,

so i have NO WARRANTY,

but it's ok now,

i recovered the plastic with "bison - plastic welder"' ( https://www.videotronics.com.cy/item/plastic-welding-glue/47809 )

the new motherboard that i got from ebay have my old serial number,

the glass scanner never used because the ADF is still good.

how did you check info about my printer?
can you provide for me the link for checking my serial number?

I have access to tools for authorized sites Brother.
Is your printer mono or color?
I have posted the service instructions ... it will be easier to write if your printer is color or mono.
I will give you step-by-step instructions on how to change the serial number in the maintenance menu.

dr.master napisał:

I have access to tools for authorized sites Brother.
Is your printer mono or color?
I have posted the service instructions ... it will be easier to write if your printer is color or mono.
I will give you step-by-step instructions on how to change the serial number in the maintenance menu.

my MFC-L5750DW printer is mono,

please send me the info how to change the serial number again,
there is a way to change the MAC address for the ethernet port and for the MAC for the wifi?, if yes i want to change it to the first motherboard,

Go to maintenance 80.
mono black -> USB:000G8J000166 - serial number your printer.
(next to the serial number is the MAC address, you can try it the same as s / n)

if you will change :

1) While the serial number is displayed, press the [9], [4], [7], and [5] key in this order to
enter the edit mode.
2) Use the keypad to enter the first digit of the serial number. Enter the second digit to the
15th digit similarly.
<Entry method of alphanumeric characters>
See the table below and press the corresponding key until the desired character is
displayed.
3) Press the [SET] or [Mono Start] key. The serial number is saved and the machine
returns to the initial state of maintenance mode