Providing the TV model can help ensure you don't accidentally install the wrong "Magic" software version, which can sometimes "brick" the hardware if the panel settings don't match.
(Be aware that you usually need all parts—part01, part02, etc.—to successfully extract the file). Download RT2831P638 1920x1080 Magic part03 rar
To help you get the right file safely, could you clarify a few things? Providing the TV model can help ensure you
Are you trying to with your TV, such as a boot loop or a black screen? Download RT2831P638 1920x1080 Magic part03 rar
What is the of the device you are working on?