Ok I used NSU last night and all worked well. I thought it would just do the Maemo 5 update, the small 16.2 MB size one but it did something like 172 MB and totally reflashed my phone. Great cos that's exactly what I was wanting to do. So in the first 12 hours so far, no sim card problems so far (Knock on wood) and let's pray it stays that way. I'll post back here later if that problem returns. Quick question: How come when using the NSU, I wasn't able to choose which firmware I wanted to download? How do I know if I have the USA variant or the Global variant or what? I guess by default NSU will just download and install the one based on your default location. I really wanted to do the Global variant but flashing through "cmd" prompt never worked. Learning something new everyday!