A Samsung Galaxy A5 Smartphone from Hong Kong should work on our Rogers network as long as the device is unlocked and using one of our Rogers SIM (Subscriber Identity Module) cards.
Our wireless technical support team give limited support for Non-Rogers devices because of all the variables, but will use a effort approach to resolve issues. Network frequency requirements for a Non-Rogers device to work on the Rogers wireless network needs to be compatible with the following frequencies:
In regards to the Samsung Galaxy A5 working on the Rogers 4G network. So far from what I've seen looking at the specs from your previous message: 4G FDD LTE B1(2100),B3(1800),B7(2600) a frequency looks compatible, so 'YES' you should be able to use the Samsung Galaxy A5 on the Rogers 4G network.
Keep in mind, we cannot guarantee the functionality of an unlocked device.