Reverse Depreciation

Hi,

We have a set of assets that were part depreciated. We are required to accelerate the depreciation in such a way that the rest of NBV is depreciated in next six months.

When we reduced the life of the assets to rest of life of asset and performed amortization adjustment, the asset became fully depreciated in the current month itself.

How do we reverse the depreciation and amortize it over next six months?

Please advise.

Appreciate the help