Which ROM? S4 I337

A

AC Question

I'm trying to figure out which ROM to download for my S4, according to about device, my baseband version is like FNB1 something like that, on this website I see firmwares for I337UCUAMDB and I337UCUAMDL. Do I need to download the FNB1 firmware or can I can just use the ones listed? Will they all let me update to the latest version?
THanks
Alex
 

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