If your projector gets stuck at the NEBULA logo, Android animation, Android TV animation, or Google TV animation during startup, you can try the following methods to resolve the issue.

Note: If the problem persists after trying the following fixes, the issue may be caused by out-of-date firmware.

For Nebula X1，Capsule 3 Laser (Android TV), Mars 3, Cosmos 4K SE, Capsule Air, Mars 3 Air, and Capsule 3:

1. Connect your projector to a power supply.

2. Point the remote control at the projector, press the power button on the remote control, and then quickly press the "Volume -" button continuously to enter Data Erase mode.

3. Wait for the erasing process to finish, and then you can start the device normally.

Note: The erasing process will delete all local files and data.

For Capsule 3 Laser (Google TV):

1. Connect your projector to a power supply.

2. When the Google TV boot animation appears, press the following buttons on the remote control in sequence to enter Recovery mode: Up, Up, Down, Down, Left, Left, Right, Right.

3. Once in Recovery mode, select the "wipe data" option to perform a factory reset.

4. Wait for the factory reset to finish, and then you can start the device normally.

For Capsule II:

1. Connect your projector to a power supply.

2. After turning on the device, quickly and continuously press the home button (8 in figure below) on the remote control to enter Recovery mode.

3. Once in Recovery mode, select the "wipe data" option to perform a factory reset.

4. Wait for the factory reset process to complete, and then you can start the device normally.

For Vega and Solar:

1. Turn off the projector.

2. Press and hold the power button until the power button light turns white to enter Recovery mode.

3. Once in Recovery mode, select the "wipe data" option to perform a factory reset.

4. Wait for the factory reset to finish, and then you can start the device normally.

For Cosmos, Cosmos Max, and Nova:

1. Turn off the projector.

2. Disconnect any devices from the USB ports.

3. Unplug the power cord.

4. Press and hold the power button, then quickly plug in the power cord while still holding the power button for at least 10 seconds to enter Recovery mode.

5. Once in Recovery mode, select the "wipe data" option to perform a factory reset.

6. Wait for the factory reset to finish, and then you can start the device normally.

For Cosmos Laser and Cosmos Laser 4K:

1. Turn off the projector.

2. Press and hold the power button for at least 10 seconds to enter Recovery mode.

3. Once in Recovery mode, select the "wipe data" option to perform a factory reset.

4. Wait for the factory reset to finish, and then you can start the device normally.

If the above solutions cannot solve your issue, please contact NEBULA customer support at support@seenebula.com for further assistance.