Im praying that someone will be able to help, spent about 30 hours trying to get my iphone to work again.
I have a iphone 4 and was using ios4.1. I had saved my SHSH with tinyumbrella.
My phone was jailbroken with greenposion
I tried to do an upgrade through itunes to 4.2 but something went wrong and my phone would only have a white screen.
I then tried to do a restore back to 4.1
I have managed to do a restore back to 4.1 from a downloaded apple ipsw but when i turn the phone on i only get the usb/itunes logo and a message saying a restore is needed.
On itunes it says that there is no SIM in the device.
I read somewhere that i should re-jailbreak the phone. I did this with RedSn0w 0.9.6rc7 and the phone will boot to a clean install, trouble now is that i cant make any calls.
In the settings section I have no phone number or basband.
Using f0recast V1.2 i get an error starindex cannot be larger than length of string. Parameter name :starIndex
but f0recast gives me a serial number and model number but baseband and bootloader are blank.
Jailbreaking again with greenpoison did not work.
I have 4.1, 4.2.1 and a custom 4.1 from snowbreeze with me (i cant do a factory restore from itunes as im on a satilite internet connection).
Does anyone have any ideas as im at my wits ends!
Thanks in advance