T56A does not boot

[Evan_Yealink]

Dear Joseph,

​This is Evan from Yealink Support Team, I am glad to answer this question for you!

For the issue you reported, I think it may be a hardware problem. For the RMA request , we hope you understand that we need to double check whether it is hardware issue before we start the RMA process for you .

1. Please change an adapter or POE for exchange testing.
2. Please make a small video about this issue, and upload it to our file server via below link:
http://sfyms.yealink.com/?ShareToken=D89...D0BDC2AEF6

Any update, please let me know.

Best Regards,
Evan You

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