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Sonoff POW R2 Energy monitor drops to 0 on new update 3.3

I bought 6 sonoff devices and I tried upgrading to 3.3.0 on one device. The energy monitor most of the time doesn't work. It's like stuck to 0 Watt or whatever the last number is there.  Sometimes it just drops to 0 Watt even when the AC is working. 


I'm not upgrading the other devices. How can I revert to previous firmware to fix this? 


17 people have this problem

Same here. 2 sonoff POW R2 updated to 3.3 and now I can't monitoring my system. This is really bad!!!

Any update?


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@stepenraj you can raise a ticket [New support ticket] button above.


In my oppinion everyone should raise a ticket, to show them that it is important issue. For me it is even critical, now my POW R2 is nothing better than Sonoff Basic and it was more expensive :(

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I've contacted support by app ewelink and they reply "Hi, We will solve this as soon as possible. So sorry for this inconvenience". Support know this bug, but without a beta program are possible to publish firmware with bug. Bye4now ProtoMax
Same problem here

Same problem here. After upgrade to 3.3.0 the monitor shows sometimes zero value and then for a few minutes some real value. 


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sad.... better dont update... 


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Cmon devs!!! Solve this shit! Is really too hard to solve that shit you did? WTF ?! A month and still nothing. Next week I'll tasmotize my devices.


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I wrote to them on August 29. They wrote to me that the next day there would be new software. And on September 8 there will be a new ewelink version. Somehow I haven't seen this new version for POW R2. The massacre fucked up the software a month ago and you have to wait for improvement and the devices are useless.

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well, 9/1 and nothing about new POW R2 firmware .  So, besides being shit devs, they are also liars , I think.


So why not download the latest functional firmware? I answer myself, there would be no unnecessary LAN function that causes all problems in all devices. But all of you have a conscience who called for this function. How often the Internet does not need to have this feature. Once a year. So just won't turn on the phone nothing happens. Likewise, when the Internet is not usually a storm and electricity.

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Any news from support??? At today pow r2 not show any new firmware...Itead Support can write us an official state of art??? As soon as possible isn't a valid reply at support request. Please restore pow r2 functionality!!!

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Any news? it's impossible that after 1 mounth there isn't upgrade 

Hi guys, 3.3.1 available.


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I cannot see 3.3.1 in app. How long will rollout last?

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