If the power adapter or charging cable of Cosmos or Cosmos Max has a problem, or there is a software issue, the projector might be unable to power on.

To resolve this issue, please try the following steps:

1. Unplug the projector and then replug it into another outlet.

2. If possible, factory reset the projector by following the steps given below to see if it helps:

- Single click the power button on the device.

- Immediately press and hold the power button until the Android page appears.

- Select the "wipe data/factory reset" option.

If this issue persists, please contact us for further assistance. Please make sure to mention that you have tried the listed steps so that our agents do not ask you to repeat these steps.