Use a drive 32GB or smaller, formatted to FAT32 .
Providing more details will help me give you accurate, actionable guidance for your Ksw-q-userdebug system update needs. Ksw-q-userdebug Os Update
Navigate to > System (or Factory Settings ) > About Tablet / Device . Look for the App Ver or System Ver string. Use a drive 32GB or smaller, formatted to FAT32