Vegas 25.6 bedroom pull down shade?

[Scubawise]

Hi the larger shade behind the bed came off 1 side under the valance. It is rolled up.
Other side is holding on.
Now sure if I have to remove the entire valance.
There is a wall to wall cabinet sitting on top.
Looking for simple fix?

[Mr Sunshine]

A picture would help here. You shouldn't have to remove the valance, but you will have to get up under there to fix it. It's not unusual for these shades to need reattached at the top and especially the string type at the bottom.