Hacking SD card help!

[TDotFlame]

So I installed RxTools and set it up so it would coldboot. It was working fine but now it just goes straight into sysnand and says Could not Detect an SD Card. Also when I am playing games and close my 3ds and open it again it stays stuck on a black screen but this dose not happen all the time. Sometimes it the middle of the game it says that the sd card was removed. I have no idea what the problem is. It is a brand new sd cards and I never had a problem like this with my old sd card that came with the 3ds. The problem only started 3 days ago. It worked fine for a good 2 weeks. If I need to reformat my sd card how would I keep all my files and CFW safe? Any kind of help would be appreciated. Thank you!

 

[DKB]

...I think your SD card is just jacked up. Judging by your wording things: It sounds like this:

>Buys new SD Card.
>Works fine.
>It stops working fine.
>It's all finicky now.

Your SD card just might be faulty, or formatting it made something go wrong.

 

[TDotFlame]

...I think your SD card is just jacked up. Judging by your wording things: It sounds like this:

>Buys new SD Card.
>Works fine.
>It stops working fine.
>It's all finicky now.

Your SD card just might be faulty, or formatting it made something go wrong.

Is it really possible to get a faulty sd card?

 

[Rosselman]

Is it really possible to get a faulty sd card?

Of course it is. All hardware can fail.

 

[DKB]

Is it really possible to get a faulty sd card?

Of course it is!

 

[TDotFlame]

so my best bet is to get a replacement sd card?

 

[DKB]

so my best bet is to get a replacement sd card?

Yes..obviously if you keep using that card you're going to have problems in the future. I wouldn't recommend continued usage of it.