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please specify

Install Drivers:

Extract the downloaded zip file.
Run the dpinst-amd64.exe file if you have a 64-bit system, or dpinst-x86.exe if you have a 32-bit system.
may be it can help

Receiver Settings:

In the Betaflight Configurator, go to the Configuration tab.
Under "Receiver", set the "Receiver Mode" to "Serial-based receiver (SPEKTRUM, SBUS, SUMD)".
Set the "Serial Receiver Provider" to "IBUS".
Save and reboot.

Shraddha Hello, as per your issue shraddha its seems like the 5v bec on your fc is dead or damaged ..and when u plug it to pc the vtx and rx get their power from the usb itself.. and for motoras always program your fc with esc connected and u can do one thing flash your fc and again progrma with esc ...

do not get the sunfun motors these are worst they burn after few flight..instead get xing e proand get a minimum 800mw vtx and minimum 1000tvl cameraand the latency in phone reciver is to highso dont get it instaed get any cheap used goggles

you can make but it will be quite complicated and will not get as stable as the drone with a flightcontroller