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WhatsApp 101: 3 Ways to Read Messages Without Opening Them (Or Letting the Sender Know) | by Gadget Hacks | Medium
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WhatsApp message receiving/loading only after opening the app - WhatsApp notification not showing - YouTube
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samsung - Not receiving WhatsApp messages unless I open the app when on 3G (on WiFi there is no delay) - Android Enthusiasts Stack Exchange
![WhatsApp message receiving/loading only after opening the app - WhatsApp notification not showing - YouTube WhatsApp message receiving/loading only after opening the app - WhatsApp notification not showing - YouTube](https://i.ytimg.com/vi/Pq0_MTMCvqk/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLDl4S7jklqpf6JLBOSKbDo2VFq1-w)