Apologies for multiple posting, but I'd received remarks that I'd posted into the wrong thread, so thought a new thread would be best, and should also help anyone else in the same situation.
I've recently purchased an iphone from the O2 store which was firmware version 1.1.2.
I didn't want to use/activate onto an 18 month iPhone tariff at £35 a month, when an O2 Simplicity tariff (Anytime 15) at £15 a month + Unlimited Data bolt-on at £7.50 a month offered the same deal (except the free Wifi Cloud access).
To do this, I had to unlock the phone to use any O2 SIM, which is the only unlock method available on 1.1.2 OTB at present.
I paid £40 for the method from
http://www.iphoneunlockuk.com
(Ok, naive I know, but I paid, and they're responsible for the accuracy of the instructions they've provided, and any future updates, so I guess I've got piece of mind too)
This involved downgrading to 1.1.1, running iBrickr, activating/jailbreaking 1.1.1, upgrading to 1.1.2 then jailbreaking 1.1.2.
This works fine and I've been using my O2 SIM fine, with EDGE etc.
I have two questions:-
1. This is not technically unlocked as I understand it, as I haven't changed the bootloader at all.
Can I safely restore my phone using iTunes back to 1.1.2 provided I have the file?
or
Do I need to virginize and if so how do I do that ?
All links found apply only to 1.1.1 and earlier, and not OTB 1.1.2.
2. I realise updating to 1.1.3 would now remove all my 3rd party software, would it also lock me out of my current O2 (non-iPhone tariff) SIM?
3. If I update to 1.1.3 using iTunes, being as I'm actually using an O2 SIM, would it just return me to the activation screen to setup a new official O2 iPhone tariff?
Sorry if these are newbie questions, but I don't want to brick the phone
Thanks in advance