QUOTE(yenestc @ Feb 5 2008, 12:12 AM)
just wondering if i successful downgrade to 1.1.2, i still need software to unlock the phone?
that means i need spend more money to do it? or i can do it myself?
coz now i not see any installer button in my home screen like previous version.
i'm really scare about it, is it possible to recover as previously?
ok before u proceed to downgrading, 1st thing u need to know is what bootloader is your iPhone comes with. if u are now using *****SIM thingy to get access to the telco, it's likely that u r using on BL 4.6, which restricts baseband fw (modem firmware) downgrading. But if u can use software unlock on your phone (not depending on *****SIM stuff), then u r ready to go as you are on BL 3.9. this is the easiest method for you to follow in step by step:
http://iclarified.com/entry/index.php?enid=630Ok, now considering that u r using iTunes 7.6, you can't get restore mode (DFU) easily. u need to use a software kit that consists of iPhuc software + some DFU Release files that may be useful to get it into restore mode. Just google for 1.1.3 downgrade kit. But if you find this method is not that easy u can use a lower version of iTunes.
owww...to get installer into 1.1.2, you need to downgrade to 1.1.1 first, and doing touchfree jailbreak method, install oktoprep, and only after that u upgrade firmware to 1.1.2 and done another jailbreak using a 1.1.2 jailbreak (google for this one).
Added on February 5, 2008, 12:47 ambtw, u can use the same guide if u r on BL 4.6. But it will only get you a jailbroken version, not SIM-unlocked. This is because with that bootloader, the baseband version can only being upgraded but not downgraded. So u still can't access your phone network. Plus, firmware 1.1.3 already knows the trick of this type of *****SIM hack so you can't access network as before.
Or if u wanna try, do a hardware unlock on bootloader. This is totally risky. Or wait for another firmware revision.
This post has been edited by LaskarCinta: Feb 5 2008, 12:48 AM