My ionic does not work on some Android devices

My ionic app works on my Samsung Galaxy phone but didnt work on some other devices. It shows a white screen after the splash screen. How do I get it to work?

maybe you should inspect chrome in each devices…

Did you remote debug the problem on the device already? Follow these instructions here to debug the problem in Chrome dev tools: Look at the console and network tabs for errors.

I dont get you. How do i do that?

Damn, they changed the link: