[1.1.3 (1.1.2 OTB) ][Help] Downgrade firmware (with 4.6bl and 04.02.13_G)

**pgilder** · 01-27-2008 07:53 PM

Hi, i soft-upgraded to 1.1.3 from a 1.1.2 OOB (bl 4.6)

baseband didnt get upgraded, so its still 04.02.13_G

i want to go back to 1.1.2

do i simply restore to 1.1.1 and jailbreak
then oktoprep back to 1.1.2???

and with all phone functions etc still working?

**prozua** · 01-27-2008 07:58 PM

how do u downgrade from 1.1.3? I tried but an error keeps pop up. If you know let me know plz

thx

**prozua** · 01-27-2008 07:59 PM

I have a mac btw.. so a mac version to downgrade would be helpfull.

**m3centurion** · 01-27-2008 08:04 PM

All you need to do is put your iphone in DFU mode and restore FW 1.1.1
Jailbreak 1.1.1
Oktoprep
upgrade to 1.1.2
jailbreak 1.1.2
Done

**pgilder** · 01-27-2008 08:08 PM

thanks

now lets hope it works!!!

**pgilder** · 01-27-2008 10:42 PM

how do u downgrade from 1.1.3? I tried but an error keeps pop up. If you know let me know plz

whats the error?

**hquest** · 01-27-2008 11:16 PM

Originally Posted by pgilder

whats the error?

**viperice** · 01-28-2008 12:57 AM

Originally Posted by hquest

Put your phone into DFU by switching it on, once on hold down home & power, when it switches off let go of power but keep home help down. Screen will stay black but it will be recognised to be in DFU. This is a mistake I was making, holding down home etc when switched off instead off on.

If you are stuck in DFU then this will not work, it will keep returning you too the iTunes logo. If this is the case use iBrickr to restore too 1.0.2, instructions are quite simple for this, it will switch it into the other form of DFU (cant remember exact name of it and then you can restore too any version with iTunes.

note: after you restore using this other form of DFU you will get an error 1015 or similar which is where you will usually use AppTapp or iBrickr too boot in normally it will not work and you will need too restore again, normally too the same version. (This is from my experience anyway)

**curtisbcm** · 01-28-2008 04:57 PM

Originally Posted by pgilder

thanks

now lets hope it works!!!

Did this method work to fix your problem? Because I have one that was updated to 1.1.3 from 1.1.2 and need to unlock it.

**Cefd** · 01-28-2008 06:24 PM

quick question: one of my freinds did the exact same mistake, will his turbo sim still work after that or not? i read several times that an updated iphone that was 112 OOB, could not work afterwards, even if the phone is back to 112... True or not?