Unhappy galaxy s4 i9505 uk vodafone official firmware needed!! HELP

hi all,

last night i flashed my s4 i9505 but has been nothing to problems, crashing mainly.

I want to return it to the factory firmware that is on UK Vodafone firmware
currently running on 4.3 custom firmware but just need a working download of the uk vodafone official firmware

can anyone help me please?!

Rob