Considering to buy a Time Capsule or other NAS for keeping your Time Machine backups? If you’re on Wi-Fi probably you shouldn’t and just stick to an external USB drive instead.
Samsung Singapore’s repair center has excellent service – if your device is still in warranty. But apparently either Samsung (or Google) overlook an important aspect in their software ecosystem that can cause you to lose data. Be sure to read our experience in getting our Android development device fixed.