Luma 3ds version 6

[Stylev6]

I have on m'y New 3ds xl luma version 6 i want UP grade to New version what i Can do?!

 

[KleinesSinchen]

Assuming A9LH please start here:
https://3ds.hacks.guide/a9lh-to-b9s

Good luck and have fun!

 

[CoolMe]

I have on m'y New 3ds xl luma version 6 i want UP grade to New version what i Can do?!

What system firmware are you on?
If by Luma version 6 you mean you have Luma v.6 means you're on A9lh, and you need to update to boot9strap in order to update Luma3DS and system firmware. Follow the link above to switch to b9s. After doing that download the latest Luma3DS version, copy boot.firm to the root of the sdcard, and update the system afterwards.