Keep apps running in standby - DM20c


I have a Dosspor DM20c, which is effectively a slight upgrade on the lemfo lem 10 and running on Android 9.

When I turn off the screen, Spotify / TuneIn for example stops playing.

I’ve tried most of the settings include battery related ones but can’t manage to keep the app running…

Anyone have any ideas


These A9 devices are extremely limited in terms of both hardware and software. So your watch is NOT a Lemfo lem10 upgrade, sorry.
We therefore do not support these watches. You can see if you can exclude the apps from energy saving in the settings. But if I remember correctly, this is not possible with these watches.


I’m hoping for an android 10 upgrade to the LEM10. I bought my daughter one a while ago. she loves it, but I’de like to get her more storage and a faster processor.

do the watch faces change out correctly using clockskin?

no problem for me, I add one by unzip it into “\clockskin.btclockface” and use it (after reboot to restart the launcher)


I have new DM20C too , no problem with tuneit, I can use it with the screen off.

In parameters → apps and… setting → tuneit → battery → retricted background …= allow
(it is in french , sorry to not use the correct words)

1 Like

Thanks, I found the setting in Optimization - clean task - battery saver…

I also have the lemfo lem10 and I bought this as it’s android 9, and has an improved battery, it’s very similar to it otherwise but in my opinion is way faster.

I’m using square home launcher which beats the standard launcher where it doesn’t seem possible to rearrange the app icons easily…there may be a way but I’ve just gone with the launcher as I think it’s better.

I m trying Nova launcher, it works fine and fast but not at all with dark theme (??) (and no live wallpaper )-: ).
My goal is to use Nova but with clockskin … some have idea ?

Try this one:

1 Like

“Animated Walpaper” is not supported by the watch…

That’s the reason why we don’t support this A9 devices.
Sorry, we can’t help you in any way.

1 Like

You have better than dm20c fornthe same size ?

Anything is better than this watch. Lemfo LEM T for example.
Maybe A10 will be available for the LEM T someday. How knows?

1 Like

ok, mt6761, but too big…

Ticwris max s maybe?

smartwatch… not smarttablet (-:
~40mmx50 like dm20s

ok, I resolved my problem: I set nova as default launcher, and
dev simple app to launch the clockskin activity of default watch launcher when the screen become ON. So, first push button light on the watch and show me clockskin and second push give me nova…

This is the code of the “POC” code, I must do a Service not Activity, but it works

package com.whatyouwant.onscreen;

import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;

public class MainActivity extends Activity {

	protected void onCreate(Bundle savedInstanceState) {
        IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
        BroadcastReceiver mReceiver = new ScreenReceiver();
        registerReceiver(mReceiver, filter);

    public class ScreenReceiver extends BroadcastReceiver{
        public void onReceive(Context context, Intent intent) {

            	Intent intent2 = new Intent();
            	intent2.setComponent(new ComponentName("com.wiite.home.MyApp", "com.wiite.home.MainActivity"));
                Log.w("whatyouwant", "Screen on");

            else if(intent.getAction().equals(Intent.ACTION_SCREEN_OFF)){
                Log.w("whatyouwant","Screen off");

In fact, after some days of use, it is better for this POC to launch the watch activity when the display become OFF (with ACTION_SCREEN_OFF) and not ON, because:

  • the watch activity is already ready (on front) for th next display on (faster)
  • new notifications are not “overwrited” and are correctly displayed
  • the hours/minutes/secondes are already show, not need to wait the animation of needles and/or digital number…

Why doing you simple use any widget from standard android widgets??? I don’t see any complex need for so. I have lem10 with smart launcher 5. And that ya super.

Is there any solution for the DM20c that apps don’t detect the front camera??