I bought my iphone OTB 1.1.2 for 4 days ago and bought a turbosim to unlock it. i jailbroke it and unfortunately i did that on 15.01.08 and get the fw 1.1.3 instead of 1.1.2. Itunes didnt downgrade fw. i used this guid from Erica Sudon http://www.tuaw.com/2008/01/16/downg...or-ipod-touch/
then i managed to downgrade to 1.1.1 and jailbreak to use the ipod functionalities.
but i have the message incorrect simcard. i tried to install oktoprep and update to 1.1.2 to use my turbosim but after updating everythig taht i installed was gone including oktoprep. i dont understand this. Does upgrading fw delete you thirdparty programs or it is just b/c of the new BB. Hope this will help ppl who has upgraded to 1.1.3 and cannot use it as ipod