A corrupted SD card may show RAW, ask to be formatted, display 0 bytes, or fail to open in File Explorer. Repair should start with file recovery when the card contains important data.

Use Qiling Deep Data Recovery before formatting or rebuilding an SD card that still contains important photos, videos, or documents.
Step 1. Launch Deep Data Recovery. Select the file types you need and click USB/SD Scan to begin.

Step 2. Choose the SD card that needs repair, then start scanning it.

Step 3. Preview the found files and select the files you want to recover.

Step 4. Save recovered files to another healthy disk. After recovery, repair or format the SD card in Windows.
The safest SD card repair path is recovery first, repair second. Do not format a card that still contains files you need.