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Can't flash custom rom

Hi, I'm new here so bear with me.
I have a Samsung galaxy note pro 12.2 lte and I'm trying to flash a custom rom (lineage os android 11) to it. I have installed twrp for the device and downloaded the rom. The problem I have is that when I try to flash the rom using twrp it fails on error 255. It gets to the point where it doesn't seem to recognise the device. It's says the software is for a note pro 12.2 sm-905 viennalte but the device shows as a full stop.what is a "viennalte" as opposed to just an lte?
Any ideas please


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