hello - first timer here, I'm currently traveling overseas in Asia and have one week left. Currently on 1.01 firmware. I borrowed a new tamron 18-270 lens to use. During this trip it started giving the DBS problem, really annoying. Didn't have this problem when I tried the lens in the US. Nothing was broken so never upgraded firmware. Do you think I should upgrade and risk having a non functional camera right now? Thanks.