Hi @ all,
I got a play 3 with a solid white light. Can´t reset, tried a lot of guides, i just can´t get it to work. powersupply is good, a replacement keypad shows the same white light…
When connected to LAN, the S1 app finds something, but it won´t go through the final steps.
i repaired a lot of sonos speakers, mostly powersupply issues and some amp-things in 5 gen1, so challenge accepted :-)
There is a company in europe, that repairs sonos speakers. In their “successfull-repair-list” they mention the solid white light. so it can´t be THAT difficult. 
Has anyone found that failure on the logic board?
Many thanks in advance!
PS: i know warranty is gone when the speaker is opened
Greetz from Germany, Flo