a chance meeting, or a casual mention in a conversation, small things leading to big on. This Thursday is World Freedom Day, and that got me thinking about choices, and the different ways that our lives can turn based on small or random things sometimes. Splashtop is well known for its remote access performance, as well as reliability, security (MFA, device authentication, encrypted traffic, etc.), and cost effective (starting at just $60 per year) sound like this is consumer usage and you can try out Splashtop Personal which is then just $16.99 per year.
but remoting into the Android box could be hit or miss because it depends on Android version and whether the vendor has set certain security policy (require root privilege via OEM signing) in order to support remote control of the Android box. remote downloading apps from a non-reputable website could be risky so prob best to download from vendor website or official app store (Google Play). If there is no Google Play store, you could try to side-load Splashtop APK through USB port (I assume there is an USB port).
Are you trying to remote from, or remote into the Android box (xiaomi)? If the Android box has Google Play, you could try downloading Splashtop app (remote from) or Splashtop Streamer (remote into the box).