hi, iPhone 3GS Version: 5.0.1 Modem Firmware: 05.16.05 I'm having an issue with this 3GS. I've already restored it twice and it'll be ok for approx a month before the rebooting issue returns. I did not have this issue until I upgraded to 5.0.1, and the issue seems to happen when I'm in an area that I lose my signal, as others are experiencing as well. I'd like to downgrade to a lower version if possible to see if this resolves the issue as alot of people seem to be having this exact issue on 5.0.1. In Tiny Umbrella, it shows that I've saved the shsh files for both 4.1 and 4.3 from this phone. Does that mean I can downgrade to either of these? If so, can anyone please provide a step-by-step on how to do this?? Thanks!