Hi.
That means that the remote code is incorrect. The same if the remote had been set using auto-program procedure.
This TV should work with hisense codes.Try
1042 (remotes RCR612, RCR812 and others), 1138 (remotes RCR3273 RCR3373 RCR4257) for the RCA 4 digits remote, try 759 on a 3 digits remote.
If you want to purchase the original remote clone,
you can get it here. The new remote will be black, and may be different from the original one.
I also found the following codes reported by users in forums. I do not think they work:
0180,6131, 8910 0463, 0171, 0178.
0463, 0171.
Regards.