1, not needed. The Xbox of the Bank of China has a warranty, which solves the worries of players. The Japanese version can't enjoy the warranty point of China Bank, so it needs to be sent back to the local area for repair. Bank of China can only log in to the national service account, and can only buy games in the Bank of China store. The Japanese version does not lock the region, so you can enter other servers to buy your favorite games.
2. No, there are many channel-changing tutorials in the xbox Japanese version now, so there is no channel in the Xbox Japanese version, so you can only try changing channels.
3. The reason why 3.gwifi can't find the signal is that our notebooks and mobile phones in the equipment area don't support the wifi signal in the 5G band at all, so it is definitely impossible to find the 5GWiFi signal.