The CSR in China is incredibly prompt in replying. Give credit where credit is due. Anyway, here is the reply: "I do not mean it, we will improve our firmware continuously, just at present we do not have any plan for the update of HM650 firmware. If you are interested, please try our HM901S which will be available in MAY, please pay attention to our website." Well at least the HM-650 isn't dead but that still doesn't tell us when the existing bugs and missing features will be corrected. I find it amusing that the CSR would end his reply with a commercial for the new HM-901S which will probably cost at least 2 or 3 times the price of the HM-650. Given my experience with the 650, how could the CSR possibly think I would want to spend even more money for another HiFiMAN DAP? HiFiMAN does have a Head-Direct / HIFIMAN Customer Service TEAM thread but I think it's in the US, not China and I don't know if they monitor any other threads. Head-Direct did replace 2 HM-650's for me but recommended I direct my tech questions to China: firstname.lastname@example.org.