Delete Asset Master Data

Dear Friends

A year before we implemented Asset Module and Management found that most of the Asset values are

wrong so decided to deleted the masters and create a new ...

We cannot deleted the masters since transaction already exists only option to RESET THE COMPANY CODE

Through Transaction Code OABL ( ONLY FOR ASSET ACCOUNITNG)

Please Advice is there is any other method or what precaution need to be taken care for this Activity

Thanks in Advance

Bharath