Xiaomi’s Mi A-line has been around for three generations, bringing the stock Google experience under the Android One program. With Android 10 now readily available for a plethora of Xiaomi devices, it was only a matter of time before the Mi A3 also got the latest version and now we have confirmation that the big update is coming next month. To be slightly more specific, Mi A3 owners can expect the Android 10 update in mid-February.
Thanks for your excitement and patience. Glad to announce the update will be out in mid February for Mi A3.— Mi India #108MP IS COMING! (@XiaomiIndia) January 14, 2020
Nothing on the A2 Lite, only January security update.
My Xiaomi Mi A2 phone was updated to Android 10 on January 13. No failure is reported.
I have 2 months android 10, and miui 11, on 9t, global version, made for eu market. Maybe you have some problem with your unit, or there is no internet connection, who knows.