The PlayStation 4 began to show strange problem recently in some of the units where the console ejects disc on its own in the middle of a game, interrupting the session, or makes the sound when the eject button is pressed even without a disc in the player. Below is the official solution that Sony offered and some home repairs discovered by users.
Sony released this official method as a simple way to repair the issue. If this method does not work, the company recommends users to contact the official service.
Step 1: Press and hold the Power button on the console until you hear two beeps.
Step 2: Wait 30 seconds until all the lights to turn off the console.
Step 3: With all the lights off, remove the power cord from the AC adapter, which goes into the outlet, and wait for 3 minutes.
Step 4: Reconnect the AC adapter cord, reconnect the console and see if the problem is still occurring.
These methods have been discovered and tested by users, then have no guarantee of success and perhaps even may cause some kind of damage to your device.
Step 5: Change the position of the horizontal to vertical console. If the problem is the button sink, change the console to the upright should decrease the occurrence.
Step 6: Try to slightly raise the height of the console putting something underneath it as a base, making sure it is tight and secure.
Step 7: Clean around the eject with a cloth, toothpick and stick with dry or minimally moistened cotton button. Blowing also can remove some dust inside.
Step 8: Turn off the game and remove the flat part of the shell, revealing its interior, as in the tutorial on "how to manually remove a disc stuck in the console." Well hidden in the top of the console you will find a screw that cares disc ejection. Turn it clockwise to make sure is secure.