JP1 Remotes

I just recently moved and have a different cable company, Spectrum. I want to load it into my URC-6131(Old) PVR Remote Extender1 2K. The equipment I have is an Arris DCX3600-M Set Top Box/Recorder. The Remote is a CLIKR-5 URS-870L-TWC. It's a Brighthouse Remote. I haven't found any upgrade file for this. I found the upgrade from ED 'Spectrum 210 and 110 Cable Boxes' and 'Spectrum 201-T' dated Nov 27, 2020. Modified them and loaded them up but they did not work. I tried to learn signals using a URC-8910B02, but it does not learn since I loaded an extender. Is there a way to remove the extender and load the original code. I tried a operation reset, but it didn't work. Any help would be appreciated.

See here for the answer for learning using the URC-8910:
https://www.hifi-remote.com/forums/viewt ... p?t=103600

But for code search requests in general, please use the template as it makes it MUCH easier for us to help you.

Here's my attempt at answering it for you:

1. Device: Arris DCX3600-M
2. Type of device: Set Top Box/Recorder
3. Year: ???
4. JP1/UEI Remote model: URC-6131, URC-8910
5. Do you have a JP1 cable? yes
6. Still have original remote? yes
7. Checked the file section? yes
8. Checked Pronto file section (at R/C)? no
9. Partially working setup code? no
10. Learning remote question? see post about extender
11. Have you tried the JP1 Lookup Tool? no
12. Have you tried simpleset.com? n/a

I did a Google search on your STB and found this thread at Remote Central which states that the following JP1 upgrade should work for you:

https://www.hifi-remote.com/forums/dload ... e_id=10630