Like many other Google Sync users on Blackberry, calendar sync stopped working some time between the end of November, 2008, and when I returned to network coverage areas in mid-January. No amount of uninstalling and reinstalling Google Sync had any effect. Luckily, I found a thread in Google Mobile Help that contained the solution.

I’m on a Blackberry Bold 9000 on AT&T, v4.6.0.167 (Platform 4.0.0.157), and here are the steps I took to get Google Sync working again:

1. On a Windows machine, connect your Blackberry and run Blackberry Desktop Manager
2. Go to Backup/Restore, and then click on Advanced
3. In the device pane, select “Calendar” and “Calendar-all” (Control-click to select both) and click on Clear¹
4. On your Blackberry, uninstall Google Sync (requires restart)
5. Install Google Sync
6. Run Google Sync, enter your login credentials, and sign in
7. Go go Options, and de-select contact sync (I don’t use it), and then select the Calendars you want to sync
8. Sync!

I’m glad it’s working again.