Three questions / IPSW, future upgrades and sync
For the knowledgeable members, please answer a few questions if you would? I have a 3GS with 3.0.1:
1) The IPSW download places a Zip'd file on my desktop. Is it correct to just change this to an IPSW extension? Extracting doesn't seem to be the solution. Changing the extension changed the icon, but want to verify before I initiate any JB process.
2) When a phone is JB'd, does this negate updating new software from Apple when it becomes available? For example, if 3.1 has new features I may want, how would one then go about upgrading a jailbroken phone in the future to take advantage of these new features? Just trying to connect the dots on how this all works, if someone could give me an overview.
3) When jailbroken, does the sync'ing process with iTunes still work exactly the same? No problems or known issues?
Appreciate any responses. I have been scouring to put this together, but these two issues are still unclear to me. Thanks in advance, Don