1, network problem, the network speed can't load Apple 12 to run normally, which leads to the normal use of Apple 12 after falling into the water, but the health code can't be scanned, so it is necessary to check the network or replace it.
2. System problem: Apple 12 has an error in its system, which causes Apple 12 to use normally when it falls into the water, but it cannot scan the health code. It is necessary to check the system security of Apple 12.