G System identify model version


G system serial number  6538513 silver .  Can someone tell me the software that this model of G system would have had uploaded from factory and if it requires any updates for software  compared to to the later (last units made) . I was told that this serial number is with the IB Buffers and updated effects 4.02 version.


I have yet to get to grips with understanding the unit ...can these details of software version etc be viewed from the units display? 


Any assistance would be appreciated .