Hi All, I have an iPhone like this: iPhone 8GB Firmware 1.1.2 (3B48b) Unlocked to t-mobile with i3gsim (i3gsim.com) Jailbreaked! Model Iphone 1,1 (M68Ap) Model Number MA712LL/A Modem Firmware 04.02.13_G Bootloader Version 4.6_M3S2 And... I will like to upgrade to 1.1.4 but I hear some issues when ZiPhone Downgrade the BB or BL really don´t know... Can someone who had made the same upgrade point to a step by step tutorial please? I don´t want to have a expensive brick. Also please say if you had some issues after the upgrade (mine works just fine right now). Thanks in advanced.