Can't enable "Developer options" on Redmi devices The official guide says:

On Android 4.1 and lower, the Developer options screen is available by default. On Android 4.2 and higher, you must enable this screen as follows:

Open the Settings app.
(Only on Android 8.0 or higher) Select System.
Scroll to the bottom and select About phone.
Scroll to the bottom and tap Build number 7 times.
Return to the previous screen to find Developer options near the bottom.


I'm using Android 8.1 and there's no &quot;System&quot; option, but there's &quot;About phone&quot; right on the first Settings screen. However, inside &quot;About phone&quot;, there's no &quot;Build number&quot;. My phone is a Redmi 6, did they change the Android interface, or Android 8.1 interface is different, or what?
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It is not a big secret that the Xiaomi uses MIUI which is a heavily modified Android OS. 

Just searching the net quickly gets you the result that on MIUI you have to tap the field MIUI Version 7 times.

Anyway you could have found out that yourself by just tapping all available fields 7 times...