venu and venu sq differences

So after a few another days, I know that my wf:

1. run well on all devices on sim.

2. run well o fenix 5x, fenix 6 pro, fenix 6x pro, fr6545m, vivoactive 3 and maybe other

3. don't run wel on

- venu sq music 2.4 - 3 types of errors: start in onExitSleep, onEnterSleep ( Unhandled Exception) and in deferent places (look like there no global variable Symbol Not Found Error, can be connected with background)

- vivoactive 4:  1 type of  error: start in onExitSleep, 

- venu:  1 type of  error: start after onEntertSleep:

-- in high power

- after trying to enter sleep mode

but there is no errors (strange) in ERA

So question is, what is the main difference between devices 1 na 2/3: of course AMOLED (besides vvivoactive 4), what else?

What SDK are you using?

3.2.4  of course

minSdkVersion="2.3.0"

Send me source code or a PRG that I can use to reproduce.

How can I send you PRG? I don't know your email an there is no attachment here/private message.

For what device? venu sq - 006-B3596-00?

app is in store:

https://apps.garmin.com/en-US/apps/b754fc6a-a5dd-4ff1-9397-db9020b3b25f

thx

I've analysed may code and I think the problem is with amoled it has to be drawn fully  every second

let see my situation

class time extends UII.Drawable
{
    var hour = null;
    
    function draw(dc)
    {
        var h = now().hour;
        if(h != hour)
        {
            hour = h;
            drawhours(dc)
        }
    }
    ...
}

class V extends UII.WatchFace
{
    ...
    function onUpdate(dc)
    {
        mTime.draw(dc);
    }
}

It run well on no amoled devices but on amoled something clear screen not me (I don't call dc.clear, View.onUpdate(dc) etc).

Maybe there is electronic "switching off  displays" and I have to "bright" every single pixel every second? Maybe sdk knows that I didn't draw next time hour (it doesn't change) and "turn off" this pixel. Maybe I have to check

(... has :requiresBurnInProtection) and draw every second full screen because in case of amoled is it necessary?

Practically now I use the same code all the time besides of always on mode where is the same code like onPartial but with shifting time

And why it run in different way on simulator?

but on amoled onUpdate is called every minute in low power so system has to bright pixels for 1 minutes

Each time onUpdate is called, you want to update the whole screen.  The only safe time to only do a part is when onPartialUpdate is called.

With requiresBurninProtection, you want to do a simplified screen when in low power, and devices like the Venu and Venu SQ don't ever call onPartialUpdate.

There are a bunch of threads about trying to only update part of the screen in onUpdate. it can cause issues.