Skip to Content Information Center
Lexmark MX331

Lexmark MX331

Not your product?

Firmware upgrade reminders

IMPORTANT!

If using Scan Center with a non-default value (default = “-1”) for the UCF settings de_network_fwCompatibilityLevel*, users must review the following Knowledge Base article before upgrading to this release (this is not common):

Upgrading firmware

  • Any device running FW5.1 or older (xxxxx.051.yyy or smaller numbers) must first update to a FW7 based release such as xxxxx.076.308 before upgrading to xxxxx.081.001 or newer releases
  • MS32x-MS62x/MX32x-MX62x Series devices and their equivalents running xxxGM.04y.zzz firmware must first update to a firmware release between xxxGM.070.001 and xxxGM.075.289 as an initial intermediate release before updating to xxxxx.081.001 or newer releases
  • CS72x/CX72x Series devices and their equivalents running ATL.03x.yyy or ATL.02x.yyy firmware must first update to CSTAT.041.090 or CXTAT.041.090 as an initial intermediate release before updating to a FW7 based release, such as xxxxx.076.308, and then finally updating to xxxxx.081.001 or newer releases
  • Contact Lexmark Technical Support to obtain intermediate releases if needed

Downgrading firmware

  • Devices manufactured with xxxxx.080.001 or newer firmware cannot have firmware downgraded below the manufactured level
  • For all other devices, it is strongly recommended that a firmware downgrade is NOT performed
  • Downgrading firmware from newer major firmware ECs to older major firmware ECs will result in the loss of Apps, Security Features, and Settings
  • Contact Lexmark Technical Support and refer to KB topic SO8017 for more information on the impacts of downgrading
  • Ensure the firmware you download is the correct

Additional reminders

  • Check the device's current firmware level. Refer to “Checking the latest Lexmark printer firmware.”
  • Check the device's current firmware level.
  • If you are aware of any firmware installed on the device that is not standard, please contact Lexmark Support to receive additional firmware update instructions.
  • Review the release notes before making the decision to update firmware.

Format nomenclature change

  • Beginning with FW4, firmware versions are named in the pattern ABCDD.xxy.zzz where:
    • A tells whether the printer is Mono or Color (M = mono, C = color)
    • B tells whether the printer is Single or Multi function (S = single function printer (SFP), X = multi function printer (MFP))
    • C tells whether the UI is a touch screen or non-touch (T = touch screen, N = non-touch screen)
    • DD tells the model family:
      • AT – (CS/CX 72x Series)
      • PP – (CS/CX 82x Series)
      • MH – (CS/CX 92x Series)
      • GM – (MS/MX 32x, 42x, 52x, 62x Series)
      • GW – (MS/MX 72x, 82x, Series)
      • ZJ – (CS/CX 42x, 52x, 62x Series)
      • SG – (B2236 and MB2236 Series)
      • BL – (CS/CX 33x Series)
      • BN – (CS/CX 43x Series)
      • BD – (MS/MX 33x, 43x Series)
    • xx tells the major firmware EC version, while y tells the minor firmware EC version (050 = FW5.0, 051 = FW5.1, etc.)
    • zzz tells the release number within that firmware EC
  • FW2 or FW3 firmware versions are named in the pattern DD.xxy.zzz using the same mapping as above. However, the DD model families used on FW2 and FW3 were changed on FW4 and newer:
    • ATL on FW2 and FW3 becomes AT on FW4 and newer
    • CB on FW2 and FW3 becomes AT on FW4 and newer
    • YK on FW2 and FW3 becomes PP on FW4 and newer

Note:  Ensure the firmware you download is the correct one for the product you have.
Was this article helpful?


Related content

Top