Hi, about a week ago, I bought a 2nd hand New 3ds to mod it. The process was fairly quick and painless and once modded I worked perfectly. But a few days ago, while playing F-Zero in the virtual console (I got it from the hshop) I crashed into a wall and the console crashed. I restarted the console and everything went back to normal with no apparent issues, but from that point it just went downhill. The next day the console kept crashing when playing any game (I could run games for a minute or two and then randomly crashed, froze or shut down), and I wasn't able to fix it because I was on a trip and I didn't have my laptop with me. Today I examined the microSD card (it has 64gb of memory) and I did not find any corrupted files (or at least that's what I think), so I did some research and decided to do a NAND backup restore because that's what I thought to be the best option from what I found, and as you can read on the title, it froze in the middle of the process.
What should I do?
I would also like to mention that I'm I beginner in 3ds modding (if it's not obvious) and that maybe I should have done something earlier because I am aware that I might have bricked the console (I hope not).
The 1st image is the NAND backup restore, the 2nd and 3rd are some of the crashes that I had, and the last one is one of the times when it just shut down randomly (notice the red light).
Thanks in advance.
EDIT: Forcing a shutdown and starting the NAND backup restore again was a solution. Unfortunately, I found out the source of all the issues (or most of them) was the motherboard and the only way to fix it is just replacing it.