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Technical Service Bulletin – Recommended (LW63.xx.P638) Firmware Update for MS, MX, CS, CX, M, XM, XC Series Printers (Channel Update March '17)

Document ID:TE488

Usergroup :External
07/09/14 Properties  


Firmware release for December 2016


  • MS312 (128MB RAM) users updating to EC6 (.P633)

To prevent memory errors and prolonged update times, use an incremental update process that requires an intermediate .P593 base code level before updating to .P633

  • EC5 users

Do not downgrade from EC5.0-level firmware unless absolutely necessary.

Why? Due to significant changes in EC4.0 (LW40.xx.P4xx) and EC5.0 (LW50.xx.P5xx), any attempt to downgrade firmware to EC4.0 from EC5.0 will result in a 900 Service error

If EC4.0 or EC4.05 is necessary, you will need to obtain EC4.1 (LW41.xx.P4xx) and downgrade to this intermediate firmware level first.

  • For DLE-equipped* devices, you typically update the engine code before updating the DLE's base code. Contact Lexmark for DLE firmware availability.

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

  • Any base code-only ( .P328 or later ) firmware package can render the device inoperable. One possible negative consequence, for example, is a  980.11 Service error when the device enters sleep mode.

Use only the combo-firmware file that incorporates both base code and the latest engine 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. 



EC6.3 base code (LW63.xx.P638) and engine code levels

 Base / Engine  Models
.P638 / .E641
  • MS310, MS317, MS312, MS315, MS317, MS410, MS415, MS417 (.P634)
  • MS510dn, MS610dn, MS610de
  • M1145, M3150(de), M3150dn


  • MX310
  • MX317
  • MX410
  • MX417
  • MX510
  • MX511
  • MX610
  • MX611
  • XM1145, XM3150
.P638 / .E715
  • MS710 
  • MS711 
  • MS810 
  • MS811
  • MS812 
  • MS810de 
  • MS812de
  • M5155, M5163, M5163dn, M5170


  • MX710 
  • MX711
  • MX810
  • MX811
  • MX812
  • XM5163, XM5170, XM7155(x), XM7163(x), XM7170(x) 
  • MX910, 911, 912 - XM9145, 9155, 9165 (engine code varies)
  • MX6500e Scanner
    (engine code varies)
.P638 / .E601
  • Lexmark CS310, CS317 (2-line)
  • Lexmark CS410, CS417 (2.4")
  • Lexmark CS510 (4.3")


  • CX310
  • CX317
  • CX410
  • CX417
  • CX510dhe
  • XC2130
  • XC2132

Bold – BSD Models



Understanding prefixes and suffixes

Prefixes; i.e., MX611de Suffixes; i.e., MX611dtne

M – Mono

C – Color

X – Multifunction

S – Single function

d – duplex

n – network

e – eTask interface (4", 7", 10")

t – additional tray

h – hard disk



EC6.3 release notes

 Bold - Channel

Printer Model Release Notes
  • MS310, 312, 315, 317
  • MS410, 415, 417
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, 317 Click here.
Lexmark CS410, 417 Click here.
Lexmark CS510 Click here.
Lexmark MS910,911 Click here.



 Printer Model  Release Notes
MX310dn, MX317
Click here.
MX410, MX417 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, 317, 410, 417, 510, CX2132 Click here.

MX910, 911, 912, XM9145, 9155, 9165

Click here.
MX6500e Scanner Option Click here.



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