Controller/card not detected

Controller or memory card not detected

The console does not recognize a controller, or a memory card fails to show up in the browser, can't be read, or repeatedly asks to be formatted. Since FMCB lives on a memory card, a card fault can also break your homebrew menu.

Likely causes

• Dirty or oxidized contacts on the card or controller plug.
• A worn controller or memory card port inside the console.
• A failing or counterfeit memory card that drops out intermittently.
• A loose connection from a third-party multitap or extension cable.

Fixes

1. Power off, then reseat the controller and memory card firmly in their slots.
2. Clean the gold contacts with isopropyl alcohol and a cotton swab; let them dry fully.
3. Test the same controller and card in the other slot and in a second console to isolate the fault.
4. Remove any multitaps or extensions and connect directly to the console.

Genuine Sony memory cards are the most reliable for FMCB; cheap clones often cause detection dropouts. If one slot never reads anything while the other works, the port hardware likely needs repair or resoldering.