Gray screen
Turn the console off before handling cartridges. A solid gray or blank screen usually means the game is not being read, so avoid forcing the cartridge, which can damage contacts.
Gray Screen
A steady gray, blue, or blank screen with the power light on means the console powered up but failed to run the cartridge. Like the blinking light, this almost always comes down to a poor connection between the game and the console rather than a fault in the console's main circuitry.
- Clean the cartridge Wipe the edge contacts with isopropyl alcohol and let them dry. Oxidized contacts are the usual cause.
- Try another game If a second clean cartridge boots fine, the first game's contacts or board are the problem.
- Check the connector If every game shows gray, suspect the console's edge connector. Clean it, retension the pins, or replace it.
- Confirm Boot several titles to make sure the console reliably reads cartridges again.
Gray versus blinking
On a front-loader you may see either a blinking light or a frozen gray screen depending on exactly how the connection fails. The remedies are the same: address the cartridge contacts first, then the console connector.
Region mismatch
A gray screen can also appear when a cartridge from an incompatible region is used. Confirm the game matches your console before assuming a hardware fault.