Thank you for your feedback

EC5.0 'Base(P454) and Engine (.E709)' Firmware Release Notes and Firmware Availability for the Lexmark MX71x, MX81x, XM5163, XM5170, XM7155, X7163, and XM7170 MFPs (April '15)

Document ID:RE191

Usergroup :External
05/05/13 Properties  


Firmware fixes


Firmware release notes (April 2015)

Version and download file information  

 Printers Firmware filename(s) Latest firmware code level
  • MX710
  • MX711
  • MX810
  • MX810
  • MX812
  • XM5163
  • XM5170
  • XM7155
  • XM7163
  • XM7170
Models with 7" (177.8mm) or 10" (254mm) eTask touch screens
  • LW50.TU.P543.tusXXgr.FDN.TU.E613.tusXXgre.fls
  • Lexmark_MX71x_MX81x_P543_FWUpdate.exe*


*This executable (.exe) utility automates the firmware flash process but does require Microsoft Windows.
  • Printer revision: LW50.TU.P543
  • Engine revision: FDN.TU.E613


NOTE: Periodic printer firmware updates address end-user performance issues, provide new functionality, and provide performance improvements. Firmware updates may modify printer settings and cause counterfeit and/or unauthorized products to stop working; i.e., supplies, parts, materials (such as toners and inks), software, or interfaces. Authorized use of genuine products will not be affected.



Article contents 



Firmware availability 


Firmware file...
Base model

See update methods below for additional firmware update instructions.

DLE-equipped models*
  • FMBC – Forms merge & Barcode card-equipped models
  • Prescribe card-equipped models
  • PrintCryption
  • IPDS card-equipped models

Contact Lexmark Technical Support

*Downloadable language emulatator



Current LW50.TU.P543 (EC5.0) release notes


Functional enhancements:

  • Support for a new laser scan unit (LSU) on mid-range mono devices
  • Dual Linearization update ( print quality improvement )
  • Improved supply support
  • Added optional capability to track device use
  • Improved fleet management capabilities
  • Support new 508 Kit
  • Google Cloud Print 2.0 (via an app (eSF) solution)
  • Performance improvement to OCR engine
  • Changed Auto Continue to be “On” by default

Updated pre-installed apps:

  • 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 – v4.3.0 (for 7" & 10" op panels) and v3.3.0 (for 4.3" op panels)
  • Scan to Network app – v4.8.4
  • Card Copy app – v2.12.0
  • Multi Send app – v2.6.2
  • My Shortcut app – v1.5.7
  • SNF Premium – v4.8.4 (MX6500e only)
  • Barcode Discovery app – v1.1.7 (MX6500e only)
  • Scan to Sharepoint app – v2.15.0 (MX6500e only)
  • ADF Card Copy app – v1.2.0 (MX6500e only)


Field issues, security fixes and other improvements:

  • Addressed CVE-2014-3566 Padding Oracle on Downgraded Legacy Encryption 'POODLE' SSLv3 vulnerability
  • Addressed CVE-2015-0235 GHOST glibc gethostbyname buffer overflow vulnerability
  • Addressed CVE-2015-0204 Factoring RSA Export Keys FREAK vulnerability
  • Fix for 323.07 Finisher Errors on MS91x & MX91x platforms (Note: also requires newer version of Engine FW)
  • Fix to allow mono devices to send email alert on “Replace Cartridge” event
  • Fix for 950.01 crash when upgrading from EC0 to EC4 FW
  • Fix for an issue with uninstalling a license when a device PIN is set
  • Fixed Email Alert client to check the status of the VALIDATE CA field in the SMTP settings
  • Fix for sleep mode timeout change on EWS not taking effect for MS31x/MS41x devices
  • Fix for Imaging Unit custom supply notification levels
  • Change Help Instructions for a particular paper jam on MS91x/MX91x
  • Additions to SNMP table
  • Improvements to time reliability when NTP is disabled
  • Various improvements and fixes for network connections
  • Various optimizations and fixes for scan/copy workflows
  • Various fixes for paper handling
  • Various font fixes for missing characters/crashes
  • Various fixes for PDF test cases giving crashes, syntax errors, missing pages, and/or slow performance
  • Various fixes for PCL/PCLXL test cases giving crashes, syntax errors, and/or slow performance
  • Various fixes for PS test cases giving crashes, syntax errors, and/or slow performance
  • Various changes to improve firmware interaction with MVE
  • Various changes to shortcut handling
  • Various changes/fixes for DBCS language support
  • Various changes to translations
  • Various UI changes, including some remote op panel fixes
  • Various fixes for Fax
  • Various fixes for UCF support
  • Various fixes for eSF app handling
  • Improved support for CAC cards
  • Improved Kerberos support
  • Addressed numerous text and translation issues in a variety of languages
  • Addressed several UI issues with text wrapping or clipping incorrectly
  • Optimized OCR processing for Classify and Route
  • Improved memory utilization
  • Improved processing MRC and OCR jobs

Engine code release notes

FDN.DN.E709/FDN.TU.E709 (MS710 and MS810 SFP series and MX710 and MX810 MFP series devices)

Changes since FDN.DN.E609 include these functional enhancements:

  1. Improved fleet management capabilities.
  2. Improved toner level reporting accuracy in some circumstances.
  3. Report the page count for supply items in Advanced Device Statistics.
  4. Unsupported supply algorithm updated.

And, these field issues and fixes:

  1. Fixed an issue that can cause a 242.32, 243.32, 244.32, or 245.32 on the first page of a job.
  2. Fixed an issue introduced in FDN.DN.E509 where automatic darkness calibration was performed at every power on, even if disabled.
  3. Attempt to automatically recover if the laser turns off unexpectedly, instead of calling 111.32 error.
  4. Improved robustness against some 912.45 errors.


Back to top

Release history

NOTE: Firmware updates are cumulative, so items listed below are also addressed with the latest firmware available.


EC4.1 release notes

Base: LW41.TU.P454

 Features and benefits

  • Added firmware support for AccuRead Automate App v.1.1
  • Improved robustness and performance of scan-related functions - especially concurrent jobs
  • Improved memory management in specific low-memory conditions
  • Addressed Openssl CVE-2014-0224 SSL/TLS MITM vulnerability
  • Addressed the OpenSSL security issues CVE-2014-3511, CVE-2014-5139 & CVE-2014-3509
  • Changed name of Lexmark Mobile Direct to Direct Mobile Print
  • Updated pre-installed Scan to Network app to version 4.5.14. (eTask models only)
  • Updated pre-installed Card Copy app to version 2.12.0. (on 7/10" eTask models only)


EC4.05 LW40.TU.P439

Addressed an issue that could lead to a 950.01 NVRAM Mismatch error when upgrading a device directly from EC0 firmware (initial start-of-production release) to EC4 (P436) firmware

EC4 Base: LW40.TU.P436 

Functional Enhancements:

  • Added AccuRead OCR as a licensed firmware option
  • Integrated OCR/MRC/Secure/PDF-A options into all device scan workflows
  • Added PDF A/1b capability
  • Increased Address Book & Internal Accounts entries from 250 to 750
  • Added Lexmark Mobile Direct support
  • Made several enhancements in VCC (Configuration Files) support
  • Added ability to select multiple shortcuts in E-mail Shortcuts workflow
  • Significantly increased the duplex scan speed on MX71x/MX81x devices to up to 140 sides per minute (letter at 150 DPI)
  • Improved Managed Print Services data tracking capabilities
  • Allow applications to support background processing to free the operator panel for concurrent functionality (eTask models only)
  • Updated pre-installed Forms and Favorites app to version 4.1.1 (for 7" & 10" op panels) and version 3.1.0 (for 4.3" op panels) (eTask models only)
  • Updated pre-installed Scan to Network app to version 4.3.15 (eTask models only)
  • Updated pre-installed Card Copy app to version 2.10.2 (eTask models only)
  • Updated pre-installed Multi Send app to version 2.6.2 (7" & 10" eTask models only)
  • Updated pre-installed My Shortcut app to version 1.5.7 (eTask models only)

Field Issues, Fixes and Other Improvements:

  • Addressed the OpenSSL Security issue: TLS heartbeat read overrun (CVE-2014-0160)
  • Addressed an issue that could cause devices to drop off the network when waking from sleep mode
  • Allow user to continue to the Ready state when unsupported supplies are installed (but still does not allow user to print with unsupported supplies)
  • Made various user interface improvements on the operator panel/screen
  • Made minor enhancements to the EWS (embedded web server) interface
  • Addressed several issues that could lead to diverse 900.xx errors (e.g., 900.00, 900.12, 900.30, 900.36, 900.40, 900.43, 900.46, 900.70, 900.80 & & 900.81 errors)
  • Fixed some issues of devices not printing correct output with certain PCL5 & PCL-XL print jobs
  • Fixed some issues of devices printing incorrect output or error pages with certain PDF or Postscript print jobs
  • Addressed multiple translation issues
  • Addressed some SNMP inconsistencies
  • Improved memory management in specific low memory conditions
  • Addressed some minor issues with the Device Statistics page
  • Addressed some minor issues with the Job Accounting log
  • Addressed some issues that could lead to the device hanging intermittently
  • Addressed an issue that could lead to a hang when printing from USB thumbdrive
  • Fixed a minor tray-linking issue
  • Made accessibility updates
  • Extended GARP/ARP Probe support
  • Fixed a wireless connection issue when using 802.1x and PEAP authentication
  • Enhanced support for OMNIKEY 5427 badge readers
  • Removed the "Enable Time to Hibernate" screen from the Initial Setup process
  • Changed default Hibernate setting from "Disabled" to "3 days" for certification purposes (Note that "Hibernate on Connection" default setting is still "Do Not Hibernate.")
  • Changed default Sleep timeout to 20 minutes (for certification purposes)
  • Made various eSF framework enhancements (eTask models only)
  • Made Solutions SDK enhancements (eTask models only)
  • Addressed minor text alignment issues with LDD scripts and eSF apps (eTask models only)
  • Allow fax footer to include "Print Time" or "Receive Time" of fax (based on an EWS setting).
  • Added multiple enhancements to aid in resolving customer fax issues
  • Addressed several fax-related issues
  • Addressed several FoIP (Fax over IP) issues
  • Fixed an issue in which a scan profile with MRC compression would use JPEG compression instead
  • Addressed an issue in which some Scan-to-Email default settings could change when choosing an email address from an LDAP server
  • Resolved some scan-related issues when using Image Capture
  • Addressed an issue that prevented EdgeErase function from working properly
  • Addressed an issue in which a Scan-to-FTP PDF file resulted in an "insufficient data for an image" when attempting to open the file
  • Improved the usability of the EWS shortcuts
  • Addressed an issue in which a user could not cancel a large scan-to job when using an app on a low-memory device
  • Added DisplayName attribute to LDAP support
  • Addressed an issue in which some 7" LCDs on older devices upgraded to P3xx firmware could see minor temporary flicker when coming out of sleep mode
  • Add support for Copy Offset (Requires finisher that supports offset – currently not available on MX61x devices)

Field Service related enhancements:

  • Made error logging improvements in device history pages and event log
  • Added support for GZIP Log link from EWS SE page on non-disk models
  • Corrected an issue in which the device page count could increment incorrectly when replacing system cards and then rebooting directly into the Diagnostics menu

Engine: FDN.TU.E609 for MX710 series and MX810 series devices
Changes in Printer Firmware since FDN.TU.E509

Functional Enhancements:

  • Release nomenclature for MX710 and MX810 series devices is changed to have a unique product identifier
  • FDN.TU.E609 is otherwise equivalent to FDN.DN.E609
  • Optimized performance when duplexing and stapling
  • Reduced the Advance Start timeout from 15 seconds to 5 seconds
  • Added support for a mode where the main fan is off unless actively printing
  • Added cartridge and imaging unit part numbers to the MPS data, to aid MPS administrators when ordering replacement supplies
  • Unsupported supply algorithm updated

Field Issues and Fixes:

  • Fix for some 121.08 fuser errors on MS710 series devices, only on the first page after a paper jam
  • Prevent fuser memory (maintenance kit counter) from being corrupted if the fuser is changed without first removing power to the device
  • Added capability to disable advance start and smart runout via diagnostics engine settings for customers that experience excessive churn on EP system



Back to top

Firmware update instructions and decisions   


Step 1: Identify current code levels and follow the decisions below. See "How to check printer firmware levels"  

Important upgrade decisions:

Base code is ≤ LW41.\\.P454 and engine code is  ≤ .E609
  1. Review the release notes to identify a needed fix or function.
  2. Read and eliminate all remaining decisions in this table.  
  3. Continue to Step 2.
Base code is already at EC5.0 (LW50), but my firmware requirements call for EC4.0 or EC4.05 - LW40.##.P436 or .P439

You must first revert to an intermediate code level of EC4.1 (LW41.##.P454).

  1. Go back to the product page to obtain EC4.1.
  2. Extract the .zip file contents.
  3. Send EC4.1 to the device.
  4. Once you have verified the device is at EC4.1, you can now send EC4.0 or EC4.05.
Failure to comply with these instructions will result in a 900 service error.

Click here for more information and device recovery instructions.

Base code is already at EC5.0 (LW50) as seen under Device Information (example), but I am still witnessing an issue with the device.

Search KnowledgeBase for another solution, or contact Lexmark Technical Support.

I have code installed that is not recognized in this article, or I have had a special build of firmware provided by members of Lexmark's product engineering team.
  1. Review the release notes to identify a needed fix or function. 
  2. Proceed to Step 2 only if you have confirmed the presence of the fix or function provided by your special build of firmware. 
  3. Contact Lexmark Technical Support if you need additional confirmation that this upgrade is safe.
I have DLE- specific firmware code.

Installed DLE as see under Device Information

DLE options include PrintCryption, Prescribe, IPDS, and Forms and Barcode.

DLEs are base-code dependent, so
  1. Review the release notes to identify a needed fix or function.
  2. Contact Lexmark Technical Support to request a DLE-specific version of this code level.
  3. You will be asked what type of DLE card is installed in the device.
  4. Click here if you installed a DLE and received an error.


Step 2: Download and extract the .zip file. See Firmware availability above.

The .zip file contains the following files:

    • Firmware.fls file
    • Automated firmware update tool (.exe) for users of Microsoft Windows
    • PrinterFileLoader for Macintosh users
    • README update instructions
    • Release notes 


 Step 3: Update the printer. 



Back to top

.FLS file update methods  


Make sure the printer is READY to receive firmware, and do not interrupt the printer's power or data connection during the update process.  

Firmware flash methods (.fls file extensions)
Information Recommended use
The device Web page or embedded Web server (EWS

Open your Internet browser and enter the device's IP address. Select Settings > Update Firmware.

Click here for an example.

This is the preferred firmware update method if:

  • The device is connected to your network, and
  • HTTP (port 80) is enabled allowing you to access its EWS, and
  • Access controls are not limiting remote management.
USB utility Click here for an example. This is an alternative flash method for USB-attached printers in a Microsoft environment.
USB thumb drive Click here for an example.

This alternative flash method is used only if:

  • You have a standalone device, and
  • No access to a computer, and
  • Access controls are not limiting flash drive access.
FTP Click here for detailed steps.

This alternative flash method is used only if:

  • The device has HTTP (EWS) disabled, and
  • There is no access to a Microsoft Windows computer, and
  • FTP (port 21) is enabled on both the printer and the network, and
  • Access controls are not limiting FTP function.
MarkVision Enterprise


Download the latest User's Guide and perform a search on Print Server updates or Generic File downloads.

Large fleets
Printer File Loader
Click here for detailed steps. This is an alternative flash method for USB-attached devices in an Apple environment.




 Back to top

How to Check Printer Firmware Levels 


To do this, obtain the Menu Settings page or access the printer's embedded web server (EWS) for this purpose. 

Checking firmware levels via Printer Menu's Setting page

1 Press the Menu button on the Operator Panel.
2 Touch Reports.
3 Touch Menu Settings Page to start printing.

Look for the code level under “Device Information”. 

Checking firmware levels via the printer's embedded web server (EWS):

1 Launch your internet browser application.
2 After http://, enter the printer's IP address.

Click on Reports.

4 Click on Device Information.


 Back to top

Contact Lexmark

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.




Please enter the email address you would like to send a copy of this page to.