// create apk release
flutter build apk --split-per-abi

// goto to build/app/outputs/apk/release
run - python -m SimpleHTTPServer
on your phone goto 192.168.2.53:8000 or whatever your dev computer ip address
pick your correct apk (32 or 64 bit)

///////////////////// basic app for testing
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: MyWidget(),
      ),
    );
  }
}

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Center(
      child: Text('hello'),
    );
  }
}