Hacking Old 3DS Won't Boot

[Rambew]

I haven't played my 3DS for a couple months, but my sister certainly has. Recently, I deleted everything on my 3DS after backing up to install things on my Wii U. Now, today, I have copied them back onto my 3DS and I get a black screen.
I am running a9lh+Luma.
I have downloaded the newest version of Luma, but I was met with 2 files that I have no idea what to do with.

Help would be much appreciated, and I will provide screenshots upon request.

EDIT:
I have installed Luma 7.0, although the 3DS is still turning off immediately after being turned on, but now I am seeing the Luma 3DS 7.0 boot up screen for a split second before it turns off. I also noticed that once it turns off, the charger indicator LED turns off as well then turns back on.

 

[Adeka]

need luma 7.x on the root of your sd with the name arm9loaderhax.bin

dont use luma 8.0, not compatible with a9lh

 

[Pyra]

https://3ds.guide/a9lh-to-b9s will help with booting the latest version of luma at the very least

Sent from my SM-G360T using Tapatalk

edit: or just use luma 7 that works too

 

[Rambew]

Thanks, going to try these now.

--------------------- MERGED ---------------------------

The 3DS is still turning off immediately after being turned on, but now I am seeing the Luma 3DS 7.0 boot up screen for a split second before it turns off. I also noticed that once it turns off, the charger indicator LED turns off as well then turns back on.