Since your latest firmware update to v1.47 on 1st September and your update to the Gateway app my sounds for my settings have changed.
For example the 00 setting for JTM Chill that should be using the Marshall JTM45 2245, clean setting is now distorted and despite trying to modify it I can no longer get back the lovely clean sound it had as want to be able to use cleans, crunches and distorions for the various modeling offerings so have now lost one of the three types of pre-amps.
Can I roll back to the previous firmware v1.46 which did not have this issue or is it your Gateway update that is causing this change?
Hi Marshall folks, I can confirm that I have upgraded both my Code 100 Combo and Code 100h from MCU v1.46, DSP v1.1 to MCU v1.47, DSP v1.2. I look forward to learning the results of your independent testing of the clean settings post v1.47 against v1.46. I have tried using headphones to see if there is any differnece which there is not. Just to also confirm I am plugging in directly from my two guitars (Les Paul and Strat) to each amp not through any pedals or effects processors etc.
Thanks for the helpfull answer which has produced very interesting results without my needing to downgrade from the latest version.
So after haveing reset both my amps to the factory presets by holding the Amp button and then turning the amp on then clciking on the edit store buttun I still get my clean presets distorted (or crunchy).
However, when I try the same factory settings for the apps cloud Factory presets per your advice (without downgrading) I get back my clean presets working fine on the new MCU and DSP.
Which suggests that something has corrupted my local factory presets.
Therefore, how do I restore all the 100 factory presets from the cloud to my amp either via the app on my phone or the MyMarshall website from my pc please as this will fix everything back to normal again, then I can change the presets I wish to amend.