These basic troubleshooting steps can solve most Black Berry mobile network connection issues that are not a result of a regional or nationwide carrier outages.

If the problem is a more complex device issue, your carrier's technical support will guide you through more in-depth troubleshooting.

Black Berry has acknowledged the problem in their knowledge base.

It apparently happens because Black Berry 10 needs 2.5 times the size of a downloaded update package to install.

Whats App Messenger is a cross platform mobile messaging app for smart phones such as the i Phone, Android phones, Windows Mobile or Blackberry.

Whatsapp allows users to send and recieve messages, photos, and other information and is considered an alternative to text messages or SMS.

I did some investigation and found at least two experiments allowing to reproduce this issue with 99% success rate: 1st experiment: Initially phone should be on the 4G network. When you notice an issue, open Field Medic and click “Stop Logging”.

Go to settings - mobile SIM and enforce phone to use 3G or 2G network only. Give the logs a name, and then click the “Save” button at the bottom (don’t click Upload). Then you can find the log files on your phone, under Documents\Field Medic\reports, so connect your phone to your computer and open that folder from your phone.As of today, when you update your BBM app, you will find that your BBM contact list has been upgraded.You start to take more – or less, depending on how you see it – control of your social circles.I've switched to WP recently and found that push notifications on Windows Phone are not reliable at all. I was using Lumia 930 for the last 3 months, and noticed a few occasions where I've missed messages on Viber / FB messenger / IM Pro: I was not seeing any notifications about new message until I opened Viber / other IM.This happens more often when I'm travelling through the areas with poor network coverage (so phone switches to 3G or even 2G for a short periods of time).It may look like your device’s display has an issue, but it actually doesn’t, it’s a software problem.