If you factory reset your Android device, the MAC address usually stays the same, but network settings will need to be re-entered.
Your MAC address will be listed under the "MAC Address" section. tivimate mac address
This comprehensive guide explains the relationship between TiviMate and MAC addresses, how connection protocols work, and how to properly configure your playlist. Does TiviMate Use a MAC Address for IPTV? If you factory reset your Android device, the