2 weeks ago i got two nintendo switch consoles one came with 4.1.0 and the second with 4.0.1 the serial numbers are
XAK100048XXXXX 2018 HAC-S-JXE-C3
XAK100016XXXXX 2017 HAC-S-JXE-C2
I have been browsing everywhere but haven't seen any xaK serial , any clues with this serial?