No - didnt do that ...
Since then have done the reset (wouldnt work off the menu system so had to do hard reset) ....it failed to restart properly and had to switch off/on foir it ..then the interface looked weird (colour palette and menu items missing) , 3 resets and switch/off on agains and it appears to have worked ..
Bit of a faff though ... never had to do a factory reset after a firmware update before on kit , that usually sets it back to how it came out of the factory with old firmware on it ...
Anyway all working now thankfully .. thanks