Most of these don't use open source software so when it breaks you end up replacing the sockets with a new maker. At best you ask and get a refund on the failed product.
I have 4 Orvibo S20 sockets. They seem to be rendered almost useless just recently. Despite several resets they are only capable of remote on/off but do not operate in the timer mode. The app allows adding timing events to be set on all the sockets but nothing actually happens. The countdown timer does work sometimes on some of the sockets. I unwrapped a sealed "new" one which I received at Christmas 2017 but this one is just as bad as the other 4.
I have two versions of the WiWo app:
1. Wifi smart sockets V01.01.012 on a Samsung S7E SM-G935F running Android ver: 8.0.0 and
2. ver: V3.2.50 from Dynacomm on a Samsung SM-T20 Tablet Android ver: 4.1.2
Both of these different apps have their quirks and have wasted hours of my time over the last 3 years. Generally I can get things working but now have this new problem outlined above..
The hardware is beautifully crafted but the firmware / software does not seem up to the job. HELP. I have emailed email@example.com but have not received any response so far.