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Ability to downgrade firmware


I'm one of the maintainers of the opensource project , however with the latest release there appears to be certificate pinning (or similar) happening. This means that users can only upgrade the firmware in the Sonoff devices if they open it up, and solder in headers.

Using this OTA method users could get all of the benefits of an open platform, without the the need to open up the device and solder etc.

To allow customers to still do this, it would be great if you could either, provide a way of having an alternative update server (with no certificate pinning), or allow using to downgrade to previous versions of firmware that did allow SonOTA to work.

Your help is appreciated to allow every to benefit from the open platform.

Thank you.

59 people like this idea


Please allow for downgrading, so that we may use alternative firmwares and SonOTA again! Thanks & kudos for the simple, stable and quality HW platform.


1 person likes this


To this day I have 1 TH, 5 Basic and 1 T1. All these devices are excellent and the SonOTA project is great. Please allow the downgrade!

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