Originally Posted by nebulaoperator
Back to the RUU. I am aware there is no RUU i need from 3 UK. So I wonder if I keep my JB at 4.2.2 do unlock back my phone root and install ROM. (but still keep 4.2.2) Than later when 3 UK release RUU I can go back to stock?
Well hypothetically, you're free to upgrade your rom to 4.3 because custom roms don't include bootloaders or firmware. Then if 3 UK ever releases an RUU (which is an if, not a when, some carriers don't), you could just flash 4.2.2 then RUU. (You might not even need to flash the rom, I'm not sure if an RUU checks rom version.) But if you ever update firmware, the RUU would need to contain a newer version than what you're currently running. Unless you obtain s-off sometime in the future.
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