I can't use mytvonline2 (provider blocked)

For z10:

Go to home menu -> system info -> if block installed, you should see menu entry "Check for configuration update"-> Highlight the configuration line, then press 0 (Zero) -x10 times -> It will factory reset and unblock the entire device.

For Z8:

Go to home menu ->Settings -> Storage & Reset ->if block installed, you should see menu entry "Check for configuration update" -> Highlight the configuration line, then press 0 (Zero) -x10 times -> It will factory reset and unblock the entire device.