you can put it into the ground if you want - you don't say whether you have 'Firepower' or 'Richmond' . If you have the latter, that one gets pretty big, and may well do better in the ground anyway if its been in a pot for a long time. You can, though, cut out damaged and weak stems and reduce the height to encourage new growth - but wait till end of the month. Perhaps repotting with fresh compost too, and give it a feed of something basic like a handful of Growmore or Miracle Gro general purpose.

Thanks Bamboo......Such a relief that it can be revived. Are you a bit of a
Connoisseur on Bamboo? Or is it that they are 1 of your favourites.
My bambo is `Firepower......

Ha ha, no, not an expert, just happened to pick that name, that's all. By the way, Nandina isn't a bamboo at all - it's just commonly known as Sacred Bamboo, but its not even the same genus as bamboo. It's a bit like African lilies (Agapanthus) which aren't bulbs and aren't related to lilies either - those common names certainly cause some confusion.

Thanks Bamboo for giving me all the gen. on Nandina.......It was really
interesting. I really thought it was 1 of the Bamboo family, just goes to
show.......