i have 4 GB 1.0.2 OTB. currently 1.1.1 .
now suddenly my iphone showing up message
Repair Needed: iPhone Cannot Make or Receive Call.
Seems like BB corrupted.
WI-FI has gone too .
Now i have downgraded it to 1.0.2 with the help of iBrickr and also activated and jailbroken it .
i have also downloaded req. files like Savious Pack. to upload it to phone.
but now i need proper guide to do it .