Exclamation [Q] Unable to connect to Vodafone UK 4G

Hi, having problems connecting to Vodafone UK 4G.

I'm using Stock UK Open D80210B_00.kdz and after first flashing my 32GB G2 (from Hong Kong) it worked.
But something has changed and I can't get 4G, I've tried re-flashing with the same ROM with no change.

Network mode shows: GSM/WCDMA/LTE auto.

Any suggestions?