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HOW TO: Put The iPhone In DFU Mode And Jailbreak, Even If Your Home Or Power Button Is Broken


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3 replies to this topic

#1
Light33

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As you know, to get into DFU you must press the two buttons simultaneously for 10 seconds, but some times one of the two buttons will break. An alternative to jailbreak without having to go into the DFU mode is to use Blackra1n. However, if the iPhone freezes and you need to restore the firmware to do it again, this guide will come back again very useful.

What you need:

* original Apple firmware (Download here or use iTunes)
* BetterZip on Mac or WinZip on Windows (or something similar, your choice)

How to do it:

1. Create a copy of the original apple firmware and change the file extension from .ipsw to .zip

2. Unpack the .zip file to view its content. Navigate to Firmware > all_flash

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3. Inside you will get two folders ( all_flash.m68ap.production and all_flash.n82ap.production ) and both of them will contain various files. The ones you are interested in are:

* LLB.m ** ap.RELEASE.img3
* applelogo.xxx.img3

NOTE: asterisks stands for 68 or 82 – depending on the folder. “xxx” is a different number for each device.

4. Delete the LLB.m ** ap.RELEASE.img3 file in both folders and rename the applelogo.xxx.img3 file to LLB.m ** ap.RELEASE.img3

5. Save everything and rename the file back from .zip to .ipsw

6. Connect your iPhone or iPod Touch to your computer, open iTunes and click the “Restore” button while holding down the Alt key if you’re using Mac (Shift key if you’re on Windovs).Now browsed for the modified .ipsw and restore your device with it.When iTune is done restoring your device with the custom firmware, your iPhone/iTouch will load directly into the DFU mode and now you can restore with a custom jailbreake firmware.

So basically what you are doing here is, making LLB (which is not there) invalidate iBoot which causes it to go into a DFU loop. (thx iH8sn0w for your input :) )

[FSM]

Yes.. It is very old but I found it interesting for those who have the Home/Power buttons broken and want to restore their iDevices.

Edited by Light33, 26 May 2010 - 10:51 PM.

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#2
lildimsum7

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thanks for this. my power button doesn't work and i dont wanna pay to fix it
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#3
lildimsum7

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ok, im confused with this. could you help me out? the LLB.m file is only in one of the folders, but the applelogo file is in both. so do i just rename both applelogo files to LLB.m? also, do i keep the LLB.n file or delete that too?
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#4
kerrying

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This might comes in very handy for me - my power button is broken after the jb n upgrade to fw3.0 from fw2.0 many many months back. You are not going to believe how much the repair shop ask for replacing 1 single Home button..
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