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Firmware EC7.2 Release Notes (May 2019)

Document ID:RE254

Usergroup :External
05/16/19 Properties  


Affected products

Click Properties in the title section above.  




Read first! Special notes and considerations

Current firmware release notes (EC7.2, LW72.xx.P030)

Product specific information, firmware download, history, and update instructions 

  • Mono single function devices
    • MS310, MS312dn, MS317, MS410
    • MS315dn, MS415dn, MS417 (2.4")
    • MS51x Series, MS610dn, MS617 (2.4”)
    • MS610de (4.3” eTask)
    • MS71x, MS81x Series (2.4")
    • MS810de (4.3” eTask)
    • MS812de (4.3” eTask)
    • MS91x Series (4.3” eTask)
  • Mono multi function devices
    • MX31x Series (2.4”)
    • MX41x Series, MX51x Series (4.3” eTask)
    • MX61x Series (7.0” eTask)
    • MX71x Series, MX81x Series (7.0”/10.0” eTask)
    • MX91x Series (10” eTask)
    • MX6500e LW70.JD.P018
  • Color single function devices
    • CS31x Series (2-Line)
    • CS41x Series (2.4”)
    • CS51x Series (4.3” eTask)
  • Color Multi Function Devices
    • CX31x Series (2.4”)
    • CX41x Series (4.3” eTask)
    • CX51x Series (7.0” eTask)

Release history


 Read first! Special notes and considerations

MS310d, MS310dn, MS312dn, MS317, MS410d, and MS410dn devices:

  • When updating from EC5 or older firmware to EC6 or newer firmware, use an intermediate release, LW50.PR.P593.FDN.PIR.E618.fls, included in the zip package along with these release notes.
  • If your device firmware is EC5 or older, update your device firmware first to LW50.PRL.P593. After your device reboots, you can proceed to update firmware to EC6.0 or newer firmware.
  • This intermediate update is necessary due to increased code size of EC6.0 or newer and memory usage during code updates. If you attempt to load EC6.0 or newer code over EC5 or older code other than LW50.PR.P593, it can take up to or more than 90 minutes to update or it may even fail completely due to an out of memory condition.

Non-eTask Models:

  • If your device was originally manufactured with EC1 code or earlier, it is possible that the DBCS (Japanese, Simplified Chinese, Traditional Chinese, and Korean) characters may go missing from the front panel display after updating firmware.
  • To fix this, simply send the updfonts.fls file included in the zip package to the device. This is a smaller version that fits in the space available with no loss of characters.

Downgrading to EC4.0 or EC4.05:

  • Due to changes in EC4.0 and EC5, do NOT downgrade firmware from EC5 or newer directly to EC4.0 or EC4.05 based code. EC4.0 and EC4.05 code levels have names like LW40.xx.P4xx. This will cause a non-clearable 900 Service error. You will need to contact the TSC for instructions on how to clear this error.
  • This warning includes installing a DLE with EC4.0 or EC4.05 code into a device that currently has EC5 or newer code.
  • Code levels earlier than EC4.0 can be sent to EC5 level devices without causing a service error.
  • To downgrade EC5 or newer code to an EC4.0 or EC4.05 level, you must first load an EC4.1 based code. EC4.1 code levels have names like LW41.XX.P4xx. Once the device is at an EC4.1 level, EC4.0 code can be sent.
  • According to the firmware FAQ posted on our support site, we do not officially support downgrading firmware. This is the reason we do not support it, even though we go to great efforts to prevent these kinds of events from happening, sometimes it is unavoidable. We apologize for the inconvenience.

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 Firmware EC7.2 release notes (LW72.xx.P030) 

Changes since EC7.0, LW70.xx.P022)

Issues Addressed:

  • Lexmark Buffer Overflow Vulnerability - CVE-2018-15519
  • Directory Traversal Vulnerability - CVE-2018-18894
  • Fixed issue where an App crashes when sanitizing edit box using single quotes in their VLML.
  • Removed anonymous authentication ciphers from factory default values.
  • Fixed crash when shutting down SMB

New Features:

  • EtherFax Support

    • ATTENTION: Setting the Fax Transport to 'etherFAX' will cause the fax feature to be unavailable unless the user has an active account for this device with etherFAX, LLC. You can contact etherFAX, LLC at, or call 1-877-384-9866 or 1-732-813-0990.


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 Product specific information, firmware download, history and update instructions


 Printer model Screen (inches) Firmware and update instructions


M1140 (BSD)

Click here


Click here

 MS51x Series

M1145, M3150dn (BSD)

Click here

M3150 (BSD)
Click here

MS81x Series

M5155, M5163dn (BSD)

Click here

M5163 (BSD)
Click here


M5170 (BSD)

Click here
 MS91x Series
Click here
MX31x Series 2.4"
Click here
MX41x Series
MX51x Series

XM1145 (BSD)
Click here
MX61x Series

XM3150 (BSD)
Click here
 MX71x Series, MX81x Series

XM5163, XM7170 (BSD)
Click here
MX91x Series 10”
Click here
 MX6500e scanner 10”
Click here
 CS31x Series 2-Line
Click here
 CS41x Series 2.4"
Click here
 CS51x Series 4.3”
Click here
CX31x Series 2.4” Click here
CX41x Series 4.3”
CX51x Series 7.0”


Still need help?

If you need additional assistance, please close this browser tab or go to the Lexmark support site, type your printer model and locate Get in Touch with Lexmark! for contact information. NOTE: When calling for support, you will need the following:

  • Name and version of the solution
  • Affected printer model/s
  • Printer serial number

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


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Release history

Firmware EC7.1 release notes (LW71.xx.P025) (October 2018)

Changes since EC7.0, LW70.xx.P022

Issues Addressed:

  • Lexmark Buffer Overflow Vulnerability - CVE-2018-15519
  • Fixed issue where an App crashes when sanitizing edit box using single quotes in their VLML.
  • Removed anonymous authentication ciphers from factory default values
  • Fixed crash when shutting down SMB



Firmware EC7.0 release notes (LW70.xx.P022) (June 2018)

Changes since EC6.3, LW63.xx.P638

New features:

  • Added SMBv3 support. See KB Article #FA1227 for more details
  • Enhanced TLS 1.2 support. Can now disable TLS 1.0 and TLS1.1
  • Added new "SSL Cipher List" setting
  • Updated openSSL to version 1.0.2j
  • Added support for PKCS #12 security certificates standard

Apps (eTask models only):

  • EcoSettings app - v3.0.11 (4.3" op panels) and v3.5.9 (7" op panel)
  • Background and Idle Screen app - v3.11.0
  • Forms and Favorites app - v4.3.3 (for 7" & 10" op panels) and v3.3.3 (for 4.3" op panels)
  • Scan to Network app - v4.9.7
  • Card Copy app - v2.12.5
  • Multi Send app - v2.7.6
  • My Shortcut app - v1.6.1

Security Issues Addressed:

  • Addressed KRACK which has the following CVEs associated with it:
  • CVE-2017-13077
  • CVE-2017-13078
  • CVE-2017-13079
  • CVE-2017-13080
  • CVE-2017-13081
  • CVE-2017-13082
  • CVE-2017-13084
  • CVE-2017-13086
  • CVE-2017-13087
  • CVE-2017-13088

Field Issues Addressed and Other Improvements:

  • Update jar signing algorithm for Remote Operator Panel and Scan Profile java applets
  • Fix for an issue where PDF scans with 1-bit mono images were unreadable by iOS10 and up
  • Fix for an issue on MX31x devices where pressing the sleep button does not put the device to sleep even when the setting is configured to do so
  • Fixes for several 900.xx crashes
  • Multiple fixes for blank screen, white screen, and busy screen hangs
  • Multiple translations changes
  • Multiple card reader fixes
  • Multiple fixes for PDF, PS, and PCL print job errors
  • Multiple fixes for fax and fax-over-IP


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