Got the deal from Zapals the other week and it just turned up. The procedure is to plug it in to a USB, download and login (sigh) to the Mi Home app (on the mobile phone) in order to configure the extender and hey-presto! So did all all that and the app sees the extender no problem but it wont detect my routers wifi (Asus RT-N66U) the wifi is working fine and in fact the phone is connected to it and working but for some reason Mi Home wont detect it. Not sure if it's relevant but I run an open network as we are on a block with no neighbours or other people around who can pinch bandwidth.
Any ideas appreciated.
Cheers.
(edit: Working now, it would not connect to the open wifi, once I turned security on it started working.)
Glad your problem's fixed! I'm expecting this soon and really need to get rid of a Wifi deadzone at home.
How's it working for you?