Originally Posted by brunos

I am not sure I understand what you are saying.
I have flown QR many times out of Hong Kong.
I tend to prefer getting printed BP at my home (HK) so I check in online and get my BP. I assume you can also go to QR website and print the BP from China.
Some of my friends use the QR mobile BP from HKG without problem.
There is always the possibility that you fly to a destination that requires that documents are checked at the counterm so that the BP cannot be issued online. In that case you have to get to the transfer desk when you arrive at HKG.

CX has the policy to through check bags on separate tickets. The CX counter in China should check your bags through.
https://www.cathaypacific.com/cx/en_...e-tickets.html