Hacking Fatal error when playing , I am on A9LH

[Hi I'm Jah]

I haven't played my 2ds in a month or so. It is on Luma3ds + A9LH, I decided to play recently. I stumbled upon multiple problems.

First was, I tried changing my theme multiple times, but it gave me error , saying something like it "cannot create bla blah blah" "failed to create theme management information". So I turned it off and on,after that all my apps were re wrapped in a gift icon. But it never happened again.

My second problem is that I am getting a fatal error when playing Pokemon. Also there are times where my 2ds loads slowly.

What is the problem with my 2ds? is it my SD? or should I factory reset it or what? I don't mind losing my files

edit: I think the error was "failed to create theme management information"

 

[Temarile]

Uh oh, this does not look good...
First thing I'd try is a new SD card but I'm not sure if that would be any good in this case.

 

[JayArRosario]

Try reflashing your SysNAND backup (a9lh and cia installer included) if you have one. It may fix your system. If not, it might be the SD Card.

 

[Hi I'm Jah]

is there any way to check if the sd card is faulty? My files is around 20gb, and my spare SD card is only 16gb

 

[JayArRosario]

There's a way to check Fake SDs but I don't know about the faulty ones.

 

[XxShalevElimelechxX]

is there any way to check if the sd card is faulty? My files is around 20gb, and my spare SD card is only 16gb

Well, u can check if your SD Card is faulty or fake with h2testw