06-21-2012 03:13 AM
06-21-2012 01:38 PM
If you did upgrade to OS 6 on a Curve 8520, you should be able to go back using BlackBerry Desktop Software. Plug your phone in to your PC and open the software. Click Device at the top of the software then Update. You should see an OS 5 version in that list. Just click it and away you go.
I hope that helps you.
06-22-2012 07:51 AM
sorry...yes.. it is 9300..
1. From where we can download OS 5.0 for Curve 9300 and OS 4.6 for Curve 8520?
2. If downloaded do we need to install in PC ?
3. we have already downloaded OS5.0 for curve 8520 and tried this OS version for downgrade of Curve 9300. But in desktop manager->device updates we are not able to find new version ..is it because we are using OS 5.0 of 8520??