Often times when we restore the data after the OS install BBM group that stuck there (waiting to rejoin), usually occurs due to poor signal / interference network. One way to prevent stuck is to find a position with a good 3G signal that when a restore BBM group.
What if already stuck? Please follow the tips below :
1. Turn off all connections (Network OFF) (Mobile network + WiFi)
2. Open BBM - Options - Backup Management
3. Choose Backup - Backup files locally (select the folder that you can remember)
4. Still in a state of network Off, go to Backup Management - select restore (restore the file from your last backup)
5. Check back BBM group, if it is correct, turn on network.
