Serial: XAJ1002549xxxx
Serial on device matches serial on box: N/A - (Second hand)
Region: Europe
Firmware: 14.1.1(Don't know the original fw)
Color option: N/A
Was a bundle (if yes, which): N/A
Purchase date: 14th May 2022
Fusée Gelée works: Yes
According to OP's post, this serial is...
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi