u/Evening_Second7919

I have this DS Lite that i rarely use since there's something up with the bottom screen (couldn't find a word to explain it), and one day i just decided im gonna use it again and i actually enjoy it again and played Zelda Phantom Hourglass in it a lot, until randomly when i pop in the Micro SD from the R4 Card to my phone to add more game roms it suddenly got corrupted, idk why it happened but this isn't the first time, the first time it happened is when i was using my other R4 Card and play Pokemon HeartGold in it, and since i wanna try shiny hunting my starter out of boredom i did the L+R+Start+Select thing, but after out of luck i decided to play cooking mama but when i click the game it loaded up Pokemon HeartGold, i turned off the console and try again, same thing happened, so after that i pop the Micro SD in my phone's Micro SD slot and it says the Micro SD was corrupted, now i did use Twilight Menu on both of these which could potentially be a problem since i've never done it before and have been using the original Kernel and it works fine, so i wanted to get another Micro SD for this but i just wanna know what could be the actual reason of this happening so im not gonna waste more money on another Corrupted Micro SD