I got (I think it was) 4 SIM updates this morning, I deleted them (that was what I thought you are supposed to do after reading them)....... then suddenly my phone (after hanging up a call) wouldn't stop vibrating ! It just went on and on - only switching it off stopped it.

When I switched it back on, it continued, but once I'd made a call and hung-up, it stopped. Phew. What was that about!?!?