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Technical Service Bulletin – Recommended (.P439) Firmware Update for MS, MX, CS, CX, M, XM, XC Series Printers (June 2014)

Document ID:TE488
07/04/14 Properties  


Firmware update; WC EC4.05; EC3.1; Rip code; Base P439; Engine code required; Low power improvements


Available Firmware Code (June 2014)



  • When updating your printer’s firmware, use an available combo-firmware file that incorporates both Base code ( .P328 or later ) and the latest Engine code.

NOTE: Do not update firmware using base code-only ( .P328 or later ) packages to avoid potential errors or issues that may render the device inoperable. For example, 980.11 Service errors when the device enters sleep mode. 

  • For *DLE-equipped devices, typically the Engine code is updated first, and then continue with updating the DLE's Base code.

    *Downloadable Language Emulator (DLE) card; e.g., IPDS, Prescribe, ImageQuick, PrintCryption, or FMBC.


About EC4.05 (.P439) base code

This firmware addresses an issue that could lead to a 950.01 NVRAM Mismatch Error if you upgrade any product equipped with EC0 firmware (initial start-of-production release) to EC4 (.P436) firmware.

Please discard all saved or archived versions of EC4 (.P436) and all PE revisions of same firmware. 


Current Base/Engine Code Levels

Single Function

.P439/.E509 (BASE/ENGINE)


  • MS310, MS312, MS315, MS410, MS415, MS510dn, MS610dn, MS610de
  • M1145, M3150(de), M3150dn
  • MS710 
  • MS711 
  • MS810 
  • MS811
  • MS812 
  • MS810de 
  • MS812de
  • M5155, M5163, M5163dn, M5170
  • Lexmark CS310 (2-line)
  • Lexmark CS410 (2.4")
  • Lexmark CS510 (4.3")



.P439/.E509 .P439/.E609 .P439/.E402
  • MX310 

  • MX410
  • MX510
  • MX511
  • MX610
  • MX611
  • XM1145, XM3150
  • MX710 
  • MX711
  • MX810
  • MX811
  • MX812
  • XM5163, XM5170, XM7155(x), XM7163(x), XM7170(x) 
  • CX310 (.P328/.E305)
  • CX410
  • CX510dhe
  • XC2130
  • XC2132


Prefixes,  i.e., MX611de Suffixes, i.e., MX611de

M – Mono

C – Color

X – Multifunction

S – Single Function

d – duplex

n – network

e – eTask interface (4", 7", 10")

E – Engine

Bold – BSD Models


Release Notes/Firmware

Single Function

Printer Model Release Notes
  • MS310, 312, 315
  • MS410, 415
Click here
  • MS510
  • MS610
  • M3150dn
  • M1145
Click here
  • MS610de
  • M3150
Click here
  • MS710 
  • MS711 
  • MS810
  • MS811
  • MS812
  • M5155
  • M5163dn
Click here
  • Lexmark MS810de, M5163
Click here
  • Lexmark MS812de, M5170
Click here
  • Lexmark CS310
Click here
  • Lexmark CS410
Click here
  • Lexmark CS510
Click here


 Print Model  Release Notes
  • MX310dn
Click here
  • MX410, 510, MX510, MX511 and XM1145
Click here
  • MX610, MX611, XM3150
Click here
  • Lexmark MX710
  • Lexmark MX711
  • Lexmark MX810
  • Lexmark MX811
  • Lexmark MX812
  • XM5163, XM5170, XM7155, XM7163, XM7170
 Click here
  • CX310, 410, 510, CX2132
Click here


 Still Need Help?

If you require additional assistance, please close this window, go to your product's support page and locate Get In Touch with Lexmark! for contact information. NOTE: When calling for support, you will need your printer model/machine type and serial number (SN).

Please be near the products described in this article to expedite the support process and reduce callbacks.


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