his guide is for those who updated their Baseband to 6.15.00 on firmware 4.1 and 4.2.1 for iPhone 3g and 3gs. This is not for iPhone 4. The method is available everywhere but it is very difficult to understand the guide all others have posted.
This guide written by us is for all Noob’s who are trying this for first time and normal users also who were facing problems while doing this. I have tried this on my iPhone and I got succeeded. So if you want to try so try at your own risk and me or the community will not be responsible if you screw your device.
Get ready for some Official Activation:
You must be Jailbroken in order to use this method.
Download Red snow 0.9.6b6:
Ultrasn0w must be Installed. So only then you can apply this method.
On you jailbroken device open Cydia and add this Repo
When you are done with the repo Adding now install
SAM and SAM Preference
Now open Redsnow 0.9.6b6 and select De-Activate
When you will be done with this so your phone will boot up and you will have your desktop of your iPhone. You are not done yet. Now take your SIM out,Go to Settings> SAM then press “Revert Lock Down To Stock, Clear Push Sessions,and then the final Step Deactivate iPhone…
When you will press deactivate it will show you that you iPhone is De-Activated. That’s normal.
2.connect your phone
3.wait a while
4.insert SIM .
If it doesn’t says that so look down for trouble shoot.