I just updated my OS a few days ago. I noticed abnormalities then. First, signal of my phone has becoming weak. I can't access the internet as fast as i had before the upgrade. Next, my bbm notification alert keeps on lighting even though there is no incoming message. I tried turning off bbm in the hub management setting, but it's still lighting.
Please do something on this. I enjoyed my fast browsing and chats so much before the upgrade. But now i have to wait for my message to be delivered for several minutes. (