TCL is not a great brand for matching universal remote codes with. The 29 or 0029 auto-scan codes will most likely find a partial match but its rare that they are a complete match. This is a common problem with cheaper smart TVs that run on a Roku platform as well. You can continue searching the bands with the 29 code and hope you find a better match. You can always factory reset the remote using code 9999 and start over to find that partial match again if you can't find a fully working code.