Firmware Update


When I update my firmware on my Code 100H  I get the 1.41 update but it continues to update backwards to 1.11 and I cannot stop the update at the new 1.41 update..When I turn the amp back on it shows 1.11 not 1.41.  ???

How do I get the new update alone?

CODE Firmware

asked 09 Mar 2019 at 08:24 PM

Gerald Harvey
Answers: 3


To check the current formware version connect your amp to your computer, enter the firmware update section of this site, and start update procedure. If your amp is up to date, you see the message.


Here is another way to check the firmware version:

1. Turn your amp off.

2. Press simultaneously PRE FX, MOD and REV.

3. Holding down the buttons mentioned above turn your amp on. The display should read M1.41

answered 10 Mar 2019 at 08:05 AM

Jacek Klimkiewicz (119)


Thank You for the Quick response. The pressing simultaneously of the Prefx Mod and REV then turn on says M 1.41.

My confusion is that my 00 setting when turned on is Big Chill and my brothers amp is EL Heaven?

Maybe it's because he has the Gateway app on his Iphone and I don't have any other device?   YET.

His amp and mine were both purchased together and we like the amps alot.   


Thanks again for the help and so quickly.

answered 10 Mar 2019 at 02:30 PM

Gerald Harvey
Together with new firmware Marshall has changed first 13 presets. Installing this firmware does NOT change these presets until you reset your amp to factory settings. I guess one of you did this reset, while the other did NOT.
But remember - amp reset erases all your self created presets.
- Jacek Klimkiewicz 10 Mar 2019 at 05:46 PM


When I refresh firmware on my Code 100 I get the 1.41 refresh yet it keeps on refreshing in reverse to 1.11 and I can't stop the refresh at the new 1.41 update..When I walk out on it indicates 1.11 not 1.41. ???

How would I get the new refresh alone?

edited 19 Mar 2019 at 06:13 PM

bokholef fouad

answered 19 Mar 2019 at 02:20 PM

bokholef fouad
Hi Bokholef,

The 1.11 you are seeing is the amp version not the Firmware, if you hold Prefx Mod and REV then turn on it should say 1.41

Marshall Support
- Marshall 19 Mar 2019 at 03:01 PM
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