T41S recovery from TFTP fails

[Baron_Yealink]

(07-24-2019 08:15 PM)jwhopkins Wrote:  Thanks Baron. It now starts updating (which it didn't before) but complains that I have bad .rom file. The .rom I am using is the latest from the Yelling support site (66.84.0.15) which I then renamed to T41S.rom. Any thoughts? It uploads a couple of items (progress percentage is dynamic). I have included a copy of the screen shot

Thanks in advance for your assistance.

- Jon

Hi Jon，

For the bad rom issue, there are three kind of possibilities:
(1) The network disconnect when you do upgrade;
(2) The rom file is error;
(3) The server is down when you do upgrade;

Suggestions:
(1) You can monitor the network to see if any packets lost;
(2) Re-download this firmware again, then test again.

If none of above helps, please reproduce it again, and offer us the syslog of phone and the log of TFTP server, then we can see what is happening here. Below is the FAQ about how to capture phone syslog.
http://support.yealink.com/faq/faqInfo?id=712

Any question, freely to let me know.

Best Regards,
Baron