here are some questions about sd card bad sector

i have few question about Sandisk SDSDQAF3-008G-I

1.Is there have any SD Card Damage Repair Program?
2.When sd card get into bad sectors how to solve it and how to avoid bad sector(want to get detail explain)
3.would like to know how to format sd card bad sector.

We are urgent for the reply ,hope can get reply asap.

Hi @Eileen1,

Please refer to the article formatting a memory card using a system:

Please contact the SD Technical Support team for best assistance and troubleshooting:Support | Western Digital