Some of your users BlackBerry Messenger (BBM) may have had moments that are less obvious than the performance of this chat service, one of which is the new BBM icons that appear on the home screen, but after check into the BBM app, it turns out all messages in the BBM already in a read all, or no new unread messages. BBM icons are 'stuck' that often make a fuss, we can not know the right way, if there is a new BBM message or not. When you experience the above case, do not panic first, consider the following tips.
1. Open BBM and then go to option
2. Then scroll down, select the backup
3. Select the backup file locally
4. save data backup 'Blackberry Messenger' in 'media card' or is it up to you keep any where
5. After a successful backup, then restore contact Blackberry Messenger
6. Select Restore using a backup file from device
After all process is complete, wait until all contact restore, is quite a long time depending on the extent of contact Blackberry Messenger. If the above method still can not, try to return to the home screen, press ALT + LGLG -> CLEAR LOG -> YES -> turn off and unplug the battery BlackBerry -> After that, replace the battery without the SIM card. Then after 'BB' is active, remove the battery again. Replace the SIM card and reinsert the battery to be activated normally.
I hope the above tips useful :)
