Originally Posted by Manuelmattar

you need a mac to change the zibri

I agree with you on the sig check on the 2.1 & 2.2 versions. Thats why I stick on to 2.0.

Please explain more on how you can help me.

-Sara

The validation of Ziphone is MD5 hash not digital signature. You must change and recompile c++ program to make it accept your modified zibri.dat file. Because bootloader is supposed to change. The validation is necessary in case the download has some problem. Otherwise it might brick iphone although the chance is rare.

Originally Posted by Gstar

hi,

i dont know if i'm right but i think we have a bootloader problem not a baseband problem. you cant fix a broken bootloader by updating or restoring to 1.1.4.

correct me if i'm wrong.

gstar

You are totally right, 1.1.4 didn´t solve my problem.....this is a bootloader brick............god help us...

Blessings...
XPR

exactly! i have restore to 1.1.4 and still have 1011 error at the end of it. I hope that sara's zibri.dat modified can help us. If not, i dont know who can do it...
Regards to all!
LaSuperYuka

so is the only way to fix the bootloader is testpoints?

hi all,

I think i have the same problem as yours which without bootloader. As i'm not familiar to unassembly my iphone and do the hardware A17 testpoints, is there any method to modify Sara's zibri.bat with below methods? I'm not sure its work or not but I would like to try.

Software downgrade bootloader
http://acujo.com/tutorials/how-to-do...software-only/

Rewrite a customize bootloader
http://iphonejtag.blogspot.com/2008/...s-to-come.html

I'm able to use Sara's unbrick112 but stop at "Spamming At, waiting for a response".

imucat (week 44, OTB1.1.1)
1) No wifi, unknown IMEI, unknown ICCID
2) Error 1011 no matter restore to any firmware in DFU or Recovery mode
3) Unable to jailbreak 1.0.2 after tried update firmare to 1.1.3, stop at "reboot in recovery mode"
4) Stuck at "Spamming AT, waiting for a response" by Ziphone

Updating to 1.1.4 does not help, tried that myself
Ziphone might be able to fix that, but i really doubt it
No wifi, no IMEI no ICCID, no sound. Pretty expensive but useless PDA touch

how do i go about downgrading the BOOTLOADER (testpoint method) if according to geohot's insturctions I need to download bsd/vt100/bootloader downgrade to the phone... the problem is i have no communication with the phone... so whats the point of doing the testpoint method if i cant even run the software required on the phone?

Originally Posted by aznbeayst

how do i go about downgrading the BOOTLOADER (testpoint method) if according to geohot's insturctions I need to download bsd/vt100/bootloader downgrade to the phone... the problem is i have no communication with the phone... so whats the point of doing the testpoint method if i cant even run the software required on the phone?

I had posted a link to download unbrick112 from Rapid Share days ago. Restore your iphone to 1.1.2. Execute unbrick112 command. You will have everything ready to do testpoint. README file is a simple guide you can follow.

Here is the url again:
http://**********.com/files/93492163...ck112.zip.html

I'm very sad this evening... I did the testpoint hack, iunew seemed to success flashing the bootloader (reached 1FF00 address...), but again when restoring to 1.1.2 with iTunes there it comes 1011 error. I try to redo testpoint again, no way. I tried to run again ziphone, the original one and some of the modified ziphone scripts I had previously wrote and tested to recover the brick, then I tried again from terminal ...nothing. I have only noticed that the error "invalid calibration data in device tree" is still there.
I remember I firstly came into error 1011 updating to 1.1.3 after I had "played" (how stupid I was!!) with seczone and iUnlock, probably corrupting it. I luckily got a backup of the seczone, and I'm trying to restore it to get off of the issue... but again no luck til now.
As far as you now, re-flashing bootloader with the testpoint hack should or should not repair/reflash the seczone also? In the latter case that could very well be my big problem to solve... keep on tryin'

Bye!

Ludo

Originally Posted by jameszjca

I had posted a link to download unbrick112 from Rapid Share days ago. Restore your iphone to 1.1.2. Execute unbrick112 command. You will have everything ready to do testpoint. README file is a simple guide you can follow.

Here is the url again:
http://**********.com/files/93492163...ck112.zip.html

getting stuck at spamming AT damnit!!!!!!! lol