Yes, you can take cellphones, laptops and other electronic devices on a plane, but with certain restrictions.
Battery operated devices that are not turned off may activate, overheat and catch fire.
You will be asked to relinquish all dangerous or prohibited items found in your carry-on luggage. If you refuse:
We x-ray bags going on planes to make sure there is nothing dangerous in them. If something comes up on the x-ray that needs checking, the bag will be opened, searched and any dangerous or prohibited item will be removed.