I see you may need some help with this, very_452001.
JBrennand's suggestion can help as your Samsung S7 can update itself to version 8.0. His useful tip can be found on page 6 of the thread, which has been endorsed by patelgh. If you need to reach it directly, go here.
If you need to some diagnostics done on your hub, as you suspect it may have a fault, we can do this via online chat.
You are welcome to join the forum and post your questions, ideas, or answers in there. Patelgh is one of the members. The post has been suggested to you as a reply from JBrennand, who is another member. as well.
You can also opt to go into diagnostics on your hub with the technical team, we can do this via online chat.