If your TV is responsive and you have a remote, follow these steps to perform a complete reinstall:
If your screen is frozen, black, or stuck on the Philips logo, you cannot use the remote menus. You need a physical forced reset. This is the exact solution for bricked units.
For this method, you will need to use the small located on the bottom edge or back left corner of the television (underneath the Philips logo).
Try this first if the TV is frozen but you don't want to lose your data. Unplug the TV from the wall socket.
To hard reset your Philips 43PUS7805/12 , use one of the following methods depending on whether your TV is responding or stuck on a logo screen. Method 1: Reinstall TV (Recommended)