Why is the serial number “123456789ABCDEF” on most of the pro plus, is this legal to have same serial numbers on every product?
Take a look in your house and 88% of the items are made in China but do they have same serial numbers?
The only number of any importance is the IMEI number for identification.
The serial number is meaningless in this case and serial numbers can be changed very easily.
Whereas changing the IMEI number is illegal in almost all countries and for good reason.
Don’t worry about it.