Recover ASM disk headers with external redundancy disk group

Hi Team,

We have 2 node RAC with 19.28 version. We have a query.

We have a disk group with external redundancy. We understand, the kfed utility is an Oracle-supplied tool used to read, write, and repair ASM disk headers. A backup copy of the header is automatically saved by Oracle within the same physical disk, typically at a different block location (e.g., block 510). If the internal backup copy is also corrupted, or if the corruption extends beyond the header (into data allocation units), the kfed repair method will not work. In this case,what options, do we have to proceed. Please share your expertise.