Why my 3DS did not recognized the R4i 3DS card?

Some R4i 3DS card users may meet a problem, they installed the software correctly but when insert the R4i 3DS card into 3DS, there is no any game icon appears and can be clicked. By double checking, the software and ROMs have no any problem. This problem happens maybe one of below reasons:
1.The gold finger field of the flashcard is dirty to cause the bad connection      between the R4 3DS card and 3DS console
2.The R4i 3DS was broken by incorrect operation
3.The TF card golden filed is dirty or broken

Normally if the flashcard is under correct operation, it should not be broken. So you can pull the TF memory card out from R4i 3DS card, then just inert the R4 flashcard into Solt-1 of 3DS, restart the 3DS, if there is still no game icon appears, please try to clean the golden finger field of your flashcard, the problem mostly will be solved.

As for the moist air or the accumulation of dust in the air, long time exposed in the air, the problem that the oxidation or the dust accumulation of the golden connection part may occur, it will cause the bad connection and there will be no card can be found when start consoles.

How to clean the R4 golden finger field?
Please prepare a soft clean fabric or you can clean your finger at first, rub the golden finger field, it may need do to twice or three times, and then try it again, the connection will be fine.