Download Download Lexmark MS331 MFP Firmware MSLBD.074.258/BD.075.E001a for OS Independent Free

Firmware upgrade warning:
-If the current code level on the device is based on FW2 or FW3, it may take up to 20 minutes to update the device to FW7 code
-This is a one-time issue of transitioning the device from FW2 or FW3 to FW7
-To find out if the device is currently running FW2 or FW3-based code, check the firmware version on the device. Codes based on FW2 and FW3 will have the following version formats: ATL.03x.yyy or ATL.02x.yyy, CB.03x.yyy or CB.02x.yyy, PP.03x.yyy or PP.02x.yyy, YK. 03x.yyy or YK.02x.yyy

Firmware upgrade steps:

-Devices running ATL.03x.yyy or ATL.02x.yyy firmware (CS72x/CX72x and equivalent) must first be updated to the intermediate version, and then updated to FW7
-The required intermediate version is CSTAT.041.090 or CXTAT.041.090, from there the firmware can be updated directly to FW7
-Contact Lexmark technical support to get this version

Firmware downgrade warning:

-It is strongly recommended not to perform a firmware downgrade.
-Downgrading the firmware from the newer main firmware EC to the older main firmware EC will result in loss of applications, security functions and settings.
-Please contact Lexmark technical support and refer to the knowledge base article SO8017 for more information on the impact of the downgrade.
-Make sure the firmware you download is the correct firmware for the product you are using

Understand firmware terminology:

Starting from FW4, the firmware version is named after the mode ABCDD.xxy.zzz, where:
-A tells whether the printer is a monochrome printer or a color printer (M = monochrome, C = color)
-B tells whether the printer is a single-function printer or a multi-function printer (S = single-function printer (SFP), X = multi-function printer (MFP))
-C indicates whether the UI is a touch screen, a non-touch screen or a “reduced feature set” (T = touch screen, 4.3-inch or larger screen, N = non-touch screen and non-refined version, L = streamlined version)
-DD ​​tells the model family
-xx tells the main firmware EC version, and y tells the minor firmware EC version (050 = FW5.0, 051 = FW5.1, etc.)
-zzz inform the release number of the firmware EC
-In FW2 or FW3 firmware version, use the same mapping as above to name in the mode DD.xxy.zzz.However, the DD model family used on FW2 and FW3 has been changed on FW4 and later: ATL on FW2 and FW3 becomes AT on FW4 and later, and CB on FW2 and FW3 is on FW4 Change to AT and higher, YK on FW2 and FW3 change to PP FW4 and higher
-Make sure the firmware you download is the correct firmware for the product you are using

About printer and scanner firmware:

Before even considering installing this firmware, go to the system information page of the device and make sure that the currently installed version is not a newer version or matches that version.

If you upgrade to this version, the imaging device can improve printing and scanning quality, adding new options in the settings menu, enhancements, various fixes, and many other changes that can improve stability.

Considering the numerous devices and manufacturers, as well as the multiple methods used to upgrade the imaging unit, we recommend that you only read the installation steps and start the firmware update process after you are familiar with this process.

In addition, it is best to perform this task in a stable power supply environment (such as a power supply guaranteed by a UPS device). In addition, please make sure not to turn off the power of the imaging device or use its buttons during the installation process to avoid any malfunction.

Therefore, if you plan to apply this version, click the download button and install the package. Remember, please visit our website as often as possible to make sure you don’t miss a new version.