S24 US import not updating - flash U or U1 firmware?

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Hi, I purchased a Samsung Galaxy S24 from Amazon UK via the Samsung store a few months ago, but it appears to be a US import. It’s currently not receiving updates (specifically One UI 7). From reading other posts, it seems this may be due to the carrier-linked firmware, and that flashing to remove the carrier dependency could resolve it.I’ve downloaded a patched Odin and SamKEY, and connected the phone to my PC successfully, but I’m now a little unsure which firmware I should download via...Read more