Which device has a rear case with exactly 20 screws?

• A. Galaxy Note9
• B. Galaxy Note5
• C. Galaxy Note8
• D. Galaxy S8

Answer: (B)

The main idea here is that the way a rear case is fastened is a model-specific detail you can verify through teardown information. The Galaxy Note5 is known for its rear panel being secured by exactly 20 screws around the edge. That precise count is a distinctive feature that sets it apart from the other models listed, which have different fastening schemes and screw counts (or rely more on adhesives/clips). Because only the Note5 matches the exact 20-screw rear-case configuration, it’s identified as the correct choice. In practice, repair guides and teardowns use such exact screw-count details to distinguish between similar devices, so recognizing this 20-screw setup helps you determine the model during disassembly or when sourcing parts. The other models don’t share that exact 20-screw rear assembly, which is why they don’t fit this description.