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a weak WiFi signal. The device can not be added to the 5G-wifi-router, only
the 2.4G-wifi is OK. At last, make sure that your router is MAC-open.
1.2. Green led slowly blinks one time and repeats, which means the device
has connected to router and server but failed to be added to the device list.
Then power on the device again, if it still not working, just add the device
again.
1.3. Green led quickly blinks twice and repeats, this means the device has
connected to the router but failed to connect to the server. Then please
confirm your WiFi router works normally.
2. Why the APP can’t find the device in pairing status?
Answers: That’s because of your phone’s cache. Please close the WLAN of
your phone then open it after a minute. At the same time, please power off
the device if you can, then power up to try again.
3. My WiFi is expired, can I connect the devices to LAN?
Answers: the Sonoff T1 doesn’t support to be controlled by LAN. You’ll
need to connect it to a WiFi with Internet.