@sudesh1 

Hi,
If the camera's system LED does not turn on, please try the following steps and see if they help.

  1. Disconnect the power cord from the camera, and remove the SD card from it if there is one. Connect the original power adapter and cord to the camera.
  2. Wait for two minutes, press and hold the reset button on the camera for 10 seconds to perform a factory reset. Then, check the LED status on the camera. 
  3. If the LED is flashing red and green, you can try to reconfigure the camera in the Tapo app: How to set up the Tapo camera
  4. If the camera's LED does not turn on and the camera does not respond to the reset operation, you can contact your retailer or the local support team to check if the camera is under warranty.
 

Best Regards