http://www.ereset.com/refill/reincarcare-refill-cartus-mlt-d111/
Resoftare Xpress SL M2870 M2875 N ND FD FW
Pentru crearea programului de resoftare al imprimantelor Samsung Xpress SL
M-2870N / M-2870ND / M-2870FD / M-2870FW
M-2875N / M-2875ND / M-2875FD / M-2875FW este necesar sa cunoastem
seria imprimantei (SN) 
, seria CRUM 
si versiunea de firmware 
Aceste informatii pot fi aflate imprimand cele 2 rapoarte ale imprimantei :
Configuration si Supplies Information 
MENU> SYSTEM SETUP > REPORT > CONFIGURATION > YES
MENU > SYSTEM SETUP > REPORT > SUPPLIES INFO > YES
Detalii
http://www.ereset.com/samsung-sl-m/resoftare-fix-firmware-reset-xpress-sl-m2870-m2875-n-nd-fd-fw/
Fix Firmware Reset Xpress SL M2670 M2675 M2870 M2875 F FN FD FW
To create fix firmware reset for printers Samsung Xpress SL
M2670 M2675 F FN / M2870 M2875 FD FW
necessary to know printer serie (SN) , CRUM serie and firmware version
This information can be found by printing the reports of the printer:
Configuration and Supplies Information
MENU> SYSTEM SETUP > REPORT > CONFIGURATION > YES
MENU > SYSTEM SETUP > REPORT > SUPPLIES INFO > YES
Resoftare [ fix firmware reset ] CLP-360 CLP-365 CLP-368 CLP-365W
Firmware version v 3.xx.02.xx En
Printers who have firmware version 02.xx termination (v3.01.02.00) can not be reset remotely
The only way to reset it is debug printer – downgrade firmware to a version that can be reset (eg v3.00.01.19); operation which requires sending printer in service to disassembl and connect the SPI memory on programmer.
Procedure available for ML-2165W , SCX-3400/3405/3407, SCX-3405W , SCX-3405F/3400F , SCX-4650N , SCX-472x , CLP-360/365 , CLP-360W/365W.
* For ML-2160, ML-2164, CLX-3300/3305 only NAND programmer.
Model [tested] SCX-3405 V3.01.02.00
Configuration report
Disconnect cables / connectors
Locates SPI memory
Extract SPI memory
Put in adaptor
Connect programmer
Select memory W25Q32BV
Read memory
Save backup
Upload ready dump downgrade
Programming
Sold memory
Connect the cables
Proof downgrade v3.00.01.19
Reset 100%