Difference between Activation and Jailbreaking
I'll be getting my iPhone soon. It is a german 3G with 3.0.1 and the corresponding baseband, it is netlocked by T-Mobile. The person I bought it from did a reset of the personal information, so it'll be clean and ready to us. I want to jailbreak and unlock it to get rid of the netlock and use it with my o2 card.
Now, to my question:
I'm well aware of what a Jailbreak and an Unlock is and how they are performed. But, I'm currently not sure how to tackle the activation.
As far as I know, without the activation via PC and a T-Mobile SIM card, I can't start the iPhone and use applications or anything like that, it will remain locked with the exception of emergency calls.
Now I'm confused if a Jailbreak will also remove the need for activation or not, so:
1. Can I get rid of the activation with a Jailbreak? Do I need to put the SIM card I want use into the iPhone while Jailbreaking?
2. If I activate the device properly with a T-Mobile SIM card, which SIM card should stay in the device for the Jailbreaking process, the T-Mobile card or the o2 card I want to use?
3. Does it make any difference if I activate with a Jailbreak (if possible) or an original card? Especially regarding the "activation status" Apple has of my iPhone, there are still some months of guarantee left on the device and I want to keep the possibility to reset my iPhone back to factory settings and use the guarantee.
thanks for your help