Yes yet another unofficial leaked operating system, this time OS 5.0.0.303 for the BlackBerry Tour 9630 smartphone is now available should you wish to install it.

However, the guys over at Crackberry suggest you should give OS 5.0.0.303 for the BlackBerry Tour 9630 a miss as reports have it that the radio is bad for some reason which basically means you may experience connection issues.

But if you do opt to check out OS 5.0.0.303 on your BlackBerry Tour 9630 and experience problems you can go the downgrade route again to sort things out.

As this is an unofficial leaked OS, the usual disclaimer applies and if you install OS 50.0.0.303 for the BlackBerry Tour 9630 you do so at your own risk, so please make sure you back up your handset accordingly.