Plugged In Not Charging  Problem Update your BIOS In Dell Inspiron I5481-5076GRY

It won’t work if your laptop power is too low. Make sure your laptop has enough the power before update the bios.
BIOS (input/output system) is the program that manages the connection between the operating system and the laptop hardware devices.

Sometimes incorrect BIOS settings can result in the laptop not charging issue. You can update your BIOS to solve the wrong settings.

For the BIOS update, you have to visit the Dell official site and find the support page of your laptop.

Then download the latest BIOS, update then install it on your dell pc. ( follow the instructions by Dell support about how to updating the BIOS ).