Mintek dtv-263-d neither the remote or manual buttons do anything except the power button it's stuck in DVD mode and won't do anything else?

It sounds like your Mintek DTV-263-D may be experiencing a mode lock or a malfunction. Try disconnecting the power for a few minutes and then reconnecting it to reset the device. If that doesn't work, consider performing a factory reset if possible, or check for stuck buttons on the remote or unit. If the problem persists, you may need to contact customer support for further assistance.