Hello, I'm sumi, I have my favourite Lumia 640 excel, here I have some problem with notifications, first I had a problem with my what's app notification, I didn't get any message when I'm out of what's app, I got the solution for that, First solution go to "battery saver in usage see for what's app, make sure that what's app can run in background", and second one is setting, lock screen, choose what's app for an quick status", the problem has been solved for me, Now the new problem is I've downloaded a app named 'Jongla' I have a problem what I had for what's app, if someone knows any solution, please help me out...
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