Hardware Dsi xl freezing randomly

[luisferaa]

My dsi xl is freezing, sound still plays, it is random. I'm using an sd card to play games, I've tried with two sd cards and I still got the same problem. Don't know where to start checking to be honest. Last time I tried to keep the console turned on with a game the whole day with no freezes whatsoever, but now when I was playing for 1 hour or so, it froze. Happens with all games.
Right now I'm using Twilight Menu with my sd card, it came premodded. Never had problems actually, but after I bought a new sd card, this issue started. Tried with the old one again, same behavior.

Also, this is a dsi ll, japanese model

 

[fabianon]

I also had this issue, with real cartdriges even.
My fix was to reseat the wifi board.
You need to open up the console for that: https://www.ifixit.com/Guide/Nintendo+DSi+XL+Wi-Fi+Board+Replacement/3247

I did not need a replacement, just removed it and reaseated it.
Might be that the board is a little loose on your console as well.
There might be other reasons, but that is worth to check IMO