Also same issue, contacted support, said to leave it charging for 2-4 hours.  What kind of product requires 4 hours of charge to even turn on? Either way, here I am 8 hours later, same dead Roam, solid orange light, power button (which is easily the worst power button I’ve ever experienced on a product) does nothing.  Factory reset steps do nothing.  

It died while it was on the official Sonos wireless charger, its sat on that base since I purchased it at launch.  Never moved, never bumped, no interuptions to power.  Suddenly it was just offline and now won’t turn on.

Pretty shoddy product to be honest.

Have you tried an off-charger power reset? Take the Roam off charge and hold power button for approx 20-25 seconds and return to a charger which has a minimum of 5v/1.5A power output for half hour to an hour and then remove from charger and try the power reset procedure again and try to get the status light to show and it reappears in the Sonos App and then return to charger and leave it until it’s fully charged.

I believe so, do you get any indication that its working when you do this?
I’ve held the power button off charger for 25 seconds, but nothing happens, nothing lights up.  Returned it to charge.  An hour later I try the same thing, 25 seconds of power button, but still no led light or anything.  When its plugged in the light is solid orange, but otherwise it won’t come on.

What is your charger power-output (not input) in volts/amps? - some mobile device chargers are sometimes only 5v/1A (which is not enough power to charge the device when battery is ‘flat’) so just double-check it’s charge capability

Note if it’s a USB ‘shared’ charger, then just leave any other devices disconnected. I actually use a 5v/3A USB PD charger and that takes about 2hrs to charge the Roam battery from an empty state.

The ‘second’ off-charger reset process I mention in my post usually results in the status LED showing but you may not see any light indication from the first reset - I would repeat the process if no joy ..but check the charger output too. If no joy after trying it a couple of times then contact Sonos Support via this LINK .

Hope that helps you to get it sorted.👍

It’s the official Sonos Roam charger with the included type C cable.  5v/2.1amps

I had the same issue, had to send it back. Powered on and connected once, the first time I used it. After that it bricked, the very next day. Tried everything, got absolutely no where.

Sonos replaced it, new one working as expected.  
Was happy they at least had advance RMA available.

Mine charged for 10 seconds and then turned the amber led off. Other than that the Roam was completely dead.

Tried the 12 seconds on the power button and that solved my problem.

/Anders

mine has been shocking since i recived it, on off, reset, onto sonos, different LED’s, power wrong, saying its playing in the app - no music. they are swapping it with me after 3 full days of 30 emails back & forth.

btw, waiting to send it back thought id give it a try while i wait, cant even get an LED on it on charge with teh sonos cable. hoppe my next one is much better or i want my money back. very dissapointed.

If anyone is having trouble with the wireless charger, try removing ROAM from the charger, then remove power from the charger for a few seconds.