Neuvo 2006 Blind problem

The blind in the kitchen has come out have getting stuck. I need to take the cover off to refit and tension, the trim below kitchen wall cupboards are in the way.  Any advice please, as I can't believe I have to take the cupboards out!  Many thanks

If there is a small gap (as on our Pollensa) then either or both of these might help, as they did with ours:

https://www.ebay.co.uk/itm/291724967129

https://www.amazon.co.uk/gp/product/B002NHAOA4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1&pldnSite=1

Many thanks Roger, I managed with a quarter drive racket with a no 2 posi in the socket, which was very awkward.   
I have had to take is down again after I refitted as roller seems to stick half way up after tightened everything up?  Maybe I am tightening up to much and it is catching on the fitments for the bicycle carrier!

I have refitted this morning and it is fine now.