I've got a question that I'm hoping you can help out on - I've trawled through forums/websites trying to find out how to fix my iphone.
I bought it off a friend in London, before moving to Canada.
I had it unlocked in London, and it took the Iphone 3GS back to 4.1 setup and the guy said I couldn't download any new apps otherwise it would screw it up (and lock it again). My friend recently jailbroke his iphone, then unlocked his himself and it's working fine. Since I couldn't use/download new app's on my iphone, I wanted to do the same. I tried using Absinthe to jailbreak my phone, but it wouldn't work, so I tried updating the software to IOS 6.0 (as I thought I'd then be able to use a programme to jailbreak it after I updated the software). Unfortunately, now I can't use any simcard in the phone to get into it (rendering it useless).
I've tried downloading an old 4.1, and attempting to restore my iPhone through iTunes with it, but this isn't working - brings up 'Iphone can't be restored. An unknown error occurred (20)'
Is there anything else I can do to fix the phone? I'm struggling to find anything else I can do.
Would appreciate any assistance.