Well after pushing and pushing at every known e-mail address at Bitmain I finally got in contact with somebody on a high rank at service dept. He confirmed what I have been suspecting about the quality of soldering is very likely the root of the problems on all S17 series, even on prior from S series as S9K and all the way thru S17. I got in touch with him via whatsapp here is the conversation: https://ibb.co/LdPzMyc

So, being that said, all my dear friends is useless and futile send you S17 to Bitmain even under warranty because is very likely that as soon as you receive them back other chips will come off, so learn how to solder using soldering paste and flux with hot air solder. Other than that, find yourself a local electronic tech near you to avoid and expose the miner to shipping "kick handling" even if shipped to Bitmain's Service Center in the USA.

Hope this clears out all theories about this equipment since the root cause of failure have been revealed.