Hi, I am in US right now, but will be in China soon. Want to have my iphone work. Sorry I cannot type Chinese here.
I have tried this tutorial. I successfully jailbreak and activate my iphone, which is 1.1.2. Before I went to the last step using lockdown to replace, I can use my At&T phone card. But after replacing, I lost the signal. My sim card can not be used in other phone either. I also tried other sim card in my phone. I didn't work either. So lockdown must have done something to my phone and my sim card.But I am not sure what it is. I am here seeking help from crazymummy. Is there any way to undo the last step? or any resolvent to get back signal? I have tired to replace lockdown file with the original one, but it didn't work. Thank you for your help!!
[ 本帖最后由 sparkle 于 2007-12-5 02:23 编辑 ]