downgrade problem from 2.0

**faisal_sherry** · 07-19-2008 08:33 PM

hi i have an iphone with latest firmware installed in it i had 7.5 itune so that i can downgrade it from 2.0 to 1.1.4 but when i put phone in recovery mode i see itune is not detecting iphone i saw in device manager that drivers are not recognised i tried everything but no luck then i upgraded itune to 7.7 and i see drivers are installed automatically then i tried to downgrade with 7.7 but got the error (20) and then again i reinstalled 7.5 and tried to downgrade by pressing shif button but got the same error (20) i have changed 3 computers but same error i dont know how to do it and not even able to put phone back in normal mode so i had to update it online again and now phone is in normal mode so help me plz
BR Sherry

**abc12345** · 07-19-2008 10:57 PM

Originally Posted by faisal_sherry

hi i have an iphone with latest firmware installed in it i had 7.5 itune so that i can downgrade it from 2.0 to 1.1.4 but when i put phone in recovery mode i see itune is not detecting iphone i saw in device manager that drivers are not recognised i tried everything but no luck then i upgraded itune to 7.7 and i see drivers are installed automatically then i tried to downgrade with 7.7 but got the error (20) and then again i reinstalled 7.5 and tried to downgrade by pressing shif button but got the same error (20) i have changed 3 computers but same error i dont know how to do it and not even able to put phone back in normal mode so i had to update it online again and now phone is in normal mode so help me plz
BR Sherry

Search for the magic mode called DFU. Downgrade could be possible if you get device in this mode.

**faisal_sherry** · 07-20-2008 05:57 PM

hi mate i put the phone in dfu mode tooo and same error any other help plz

**Tux1** · 07-20-2008 08:01 PM

Me too, i have this problem

**sparty** · 07-20-2008 09:43 PM

I was doing the downgrading for a friend when i ran into this error(20) problem.... just make sure the following:
1) upgraded itunes to 7.7
2) uninstall itunes 7.7 and change the name of itunes library in your Music folder
3) install itunes 7.5/7.6...doesn't really matter
4) put your phone in DFU (screen black) not recovery mode(USB+itunes)
5) restore with the (shift/ctrl) way
6) kick phone out of recovery mode
7) run patched ziphone
8) restore again
9) unlock with the usual stuff in here

**crackertc** · 07-20-2008 10:05 PM

Same problem here,

iTunes does not detect the iphone on DFU nor Restore mode, only in normal mode.
I have tried it on my mac and win and nothing, it looks like its bricked.

**abc12345** · 07-21-2008 12:32 AM

20 error means ,You have to uninstall iTunes 7.7 to 7.5.
1600 error means , device dont get in DFU mode.
Restart iPhone and try DFU mode again.

**crackertc** · 07-21-2008 12:55 AM

How about a phone that doesn't get into DFU mode?

I have done it before, with other phones, but this one (OTB 1.0.2 4gb) just doesn't.
It currently has FW 2.0 (upgrade by mistake), I'm trying to downgrade to 1.1.4 and can't because of the DFU mode, it doesn't go in.

**hks_turbokits** · 07-21-2008 03:18 AM

how do i run Patched Ziphone??

on the PC or on the Actual Phone?

and is it "ZiPhoneOSX_patched_by_kIREmK_04.05.04_G__En_. zip"

I use a windows machine btw