Dry the sink. Use paper towels or a dry rag to dry the sink completely. Stainless steel can rust if water evaporates on its surface. Make sure to rub the sink down until it's completely dry after cleaning to prevent this issue. Make sure you use softer rags and paper towels to dry the sink.
LTE means that you're connected to your cellular carrier's LTE network, which is a high speed data network for mobile devices. It is a faster connection than 3G networks, though it is only available in certain network areas. When you see the LTE on your phone, it means your phone is pulling data using your data plan and not on wifi. When your phone is on wifi, 'LTE' will be replaced by the wireless signal indicator icon. LTE is 4G (Long-term evolution). Yes it is part of the data plan much like HSPA+, 3G, 2G, etc.
Long Term Evolution is a wireless broadband technology designed to support roaming internet access by cell phones and handheld devices. Because LTE offers significant improvements over older cellular communication standards, some refer to it as a 4G technology, along with WiMax. What Is LTE Technology