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Cannot upgrade firmware

Hi guys, I have 2 sonoff basic with installed the last firmware 3.0.1 and 1 TH16 with firmware 2.6.0 like the last version available. Can anyone explain me how to upgrade? Thanks in advance.

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My TH16 ære Also 2.6.0 and cant upgrade to 3.0.1 ??? Isn 't it possible?

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I have the same issue with my TH16. Firmware upgrade 2.6.0 to 3.3.0 runs up to 90% and then failed ... all the time. Is there a solution?

The firmware update needs to communicate outbound on the following IP ports :-


TCP 80

TCP 443

TCP 8088


80 & 443 you are highly likely to be already using for standard web browsing - but 8088 is possibly blocked.


You can either enable this on your ISP firewall/router (and I'd suggest disabling it again afterwards) or setup a wifi hotspot on your phone,  then do a normal device discovery and upgrade the firmware via that using your phones internet connection.  Once upgraded, then discover it again on your normal wifi.



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