This posting is part of Calpernia’s “Tech Tips for Nerds” series… if you are not a techie nerd, ignore this!

Ok kids, after a long day of searching every nook, cranny, blog and rumor mill following the iPhone software 3.1 upgrade released by Apple, here is the definitive finding:

If you upgraded your 3G or 3GS iPhone to 3.1, you cannot at present downgrade it to 3.0, jailbreak it or unlock it. There are some blogs out there saying you can, but that’s ONLY if you somehow upgraded the phone software to 3.0 but your baseband modem software remained not upgraded (which didn’t happen unless you were a developer who forced an upgrade of the phone software with a preview copy outside of the normal iTunes upgrade process).

To put it with ultimate clarity, if (as of Sept. 13, 2009) you upgraded your 3G or 3GS iPhone to 3.1 using iTunes, you cannot Jailbreak it, Unlock it or revert, restore or downgrade it to 3.0… yet. Use the Google search I put below to keep updated, I’m sure Saurik or someone will have this sorted out soon.

Oh, and [celebrities] [fancy costumes] [pop music] [sexy guys] for all my regular non-nerd readers. Mwah!

Search Google for recent postings on this topic: Click HERE

Calpernia on Twitter?

I recently discovered that while attempting to move a list of friends into a “group” with my iPhone Twitter app, I actually “blocked” them, which both unfollows them and blocks them from talking to me! Argh… so if you recently figured out that you were blocked by my Titter account, that’s what happened.

Once I figured out that this had happened, I needed to find a list of who I had blocked on Twitter, but there was no easy way to get this information. You have to go one-by-one and unblock/refollow the people, but how can you find them?

Thankfully, a member of the wonderful nerd community has created a super simple page using a new Twitter API to list the followers you have blocked. Just go here and connect to your Twitter account to see who you’ve blocked:

http://www.topify.com/whoiblock/

Find me on Twitter at http://twitter.com/calperniaaddams

Tech Tips for Nerds (TTFN) is my series of blog posts where I share the information I obtained after laborious Google searching for some tech problem or other. Ignore these if you’re not nerdily inclined, I’m just archiving them here to help the next Google searcher.

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