Should the computer sound be fixed for brothers who listen to music despite the prohibition and despite obeying their parents?

Obedience to any created being, even if it be a father or a mother, is not permissible when it involves disobedience to the Creator. This is based on the Prophet's (peace be upon him) sayings: "Obedience is only in what is right," and "There is no obedience to a created being in disobedience to the Creator." Therefore, if the device will be used for songs or anything unlawful to listen to, then it is not permissible to repair it.