3asy´s iPhone How To

How to downgrade from the iPhone OS 4.0 beta1/2 to firmware 3.1.3 for Windows & Mac

2010-04-22T18:47:00.000-07:00

Not satisfied with the iPhone OS 4.0 beta1/2? Have you tested it and want back to 3.1.3 or lower?
Here`s the guide:

Get your iPhone into the DFU mode by turning it off and holding the homebutton by connecting it with the USB cable. If you see the iTunes logo on your screen you can release the homebutton
Install the 3.1.3 firmware with iTunes on your device (Press alt while clicking on the restorebutton in iTunes and choose the iPhone 3.1.3_restore.ipsw file manually). The installation will end up with an error
The OS 4.0 beta1/2 has updated your Baseband to a higher version that 3.1.3 comes with. This results in the "iphone restore error", iTunes says that it needs to be restored each time you connect it
Download iRecovery , Mac users skip point 5!
Windows only: install libusb-win32-filter-bin-0.1.12.2.exe from the package above. Vista needs to run this file as administrator and in compatibility mode
Open Terminal. Type in cd{space} and drag your iRecovery file into the Terminal, before you press enter delete the "iRecovery" textpart at the end
Type in "iRecovery -s" , sometimes this only works for Mac: "./iRecovery -s"
Type in the following commands: "setenv auto-boot true" {enter}, "saveenv" {enter},
"exit" {enter}
Restart your device

After the reboot you have successfully downgraded your firmware to 3.1.3!

How to decrypt, mount and edit the root filesystem in .ipsw files

2010-04-22T16:57:00.000-07:00

Before the redsn0w jailbreak was public you could see a video on iH8snow`s twitter blog at http://www.twitvid.com/UI21P showing him modifying the root_fs.dmg from an .ipsw file:

All the guides you find on the net are not complete, missing a few important steps and, most important, the reason why it cant`t be done this way. Complete Guide:

Rename your .ipsw file to .zip and unzip it
Download vfdecrypt here: vfdecrypt.zip
Place the .dmg you want to decrypt in the vfdecrypt folder
Open Terminal, cd (switch) to the vfdecrypt folder by typing in "cd"{space} and dragging the vfdecrypt folfer into the Terminal, press enter
Type in "./vfdecrypt -i {dmg) -o rootfs.dmg -k {key}" replace {dmg} with the filename of the .dmg that you want to decrypt and {key} with the key for the firmware you want to edit. Firmware keys can be found here. Press enter
Your decrypted .dmg will be created in the vfdecrypt folder under the name "rootfs.dmg"
Right click on it and open it with hdd utility. Click on "convert" and choose "read/write" and "without" in the encryption tab.

That`s it. Save the .dmg to a new file and mount it. Your are now able to browse and edit the .dmg (for example edit the SystemVersion.plist like shown in the video). The problem and the reason why this guide can`t be used to create custom .ipsw files is that you can not re-encrypt .dmg files with the same key you used to decrypt them after changing something! Your created .ipsw files will be corrupted.

To finish the custom .ipsw you have to be able to re-encrypt the .dmg with the same key which is not possible and to add it back to the .ipsw (.zip) without changing the checksum which is impossible too (iH8sn0w posted a few days after the video that you also need to patch a few system files to make this work.)

Why you can`t use the 3asy UDID bypass guide with the iPhone OS 4.0 Beta2

2010-04-22T16:13:00.000-07:00

Apple announced the iPhone OS 4.0 beta2 today.

I tried working on the redsn0w 0.9.5 beta2 to make it able to jailbreak the new OS 4.0 beta2.
The jailbreak on the beta1 is done by using an already known exploit. As apple released the 3.0.1 update of the 3.0 software you were able to use the redsn0w release for the 3.0 firmware to jailbreak 3.0.1.

The idea was, in case that the modifications weren`t big, to simply edit the redsn0w 0.9.5 beta2 by changing the names of the .dmgs (like the 018-7262-033.dmg to 018-7411-002.dmg ), -k and -iv keys (posted by iH8snow here) and the sha1 checksum (from "a855ef177392d3df6aa28bc3557d6a87a57846ae" for the beta1 to "865e331b9588ce20b949cbf11ca2e9a4ee439fca" for the beta2).
The last part with the sha1 checksum will let redsn0w recognize the new beta2 and display ".ipsw successfully identified".

This is how far you get, by clicking on "next" Redsn0w crashes in the Kernel Part and can not work with the Beta2.

This happens because Redsn0w is not able to patch all the files even if it can decrypt the firmware with the keys you manually entered.

We have to wait for the 0.9.5 beta3 if there will be one! As soon as I get any news about the 4.0 beta2 I`ll post them here, so stay tuned.

How to enable mms, data service and internet tethering in OS 4.0 beta

2010-04-21T06:23:00.000-07:00

After the update to the OS 4.0 beta you may not be able to use data, mms or internet tethering. Follow these steps to activate these features:

Connect your iPhone to a wifi network
Navigate (on your iPhone) with Safari to http://www.iphone-notes.de/mobileconfig/
Follow the instructions and install your customized carrier settings
Restart your devie

Tested it with Orange Austria, mms, data and internet tethering are working again.

How to add the cydia sources and repair the blank cydia icon

2010-04-19T14:00:00.000-07:00

The cydia button is blank after the jailbreak with the redsn0w Beta and there are no sources avalible! Follow this guide to fix it:

Open Cydia, go to sources and choose „edit“. Add the source „http://apt.saurik.com/cydia-3.7/“
After the download is done your cydia icon and all the packages will appear.

How to activate homescreen-wallpaper and multitasking on the iPhone 3G

2010-04-19T13:25:00.000-07:00

You may have noticed that there are a few major things
missing on the iPhone 3G: Desktop wallpapers and
multitasking.

You can enable this hidden features with this guide:

Open iPhone explorer, if you haven`t downloaded it already you can find it here: iPhone Explorer 1.1.8.3
Navigate to „System/Library/CoreServices/SpringBoard.app“ and copy „N82AP.plist“ to your desktop by dragging it there.
Download PrefSetter to edit the .plist here: PrefSetter 2.0
Start PrefSetter and open the „N82AP.plist“
Click on „Capabilities“ and choose „add new key“ in „Actions“ on the top
Name the new key „multitasking“, choose „Boolean“ and „true“
Add a second key by choosing „add new key“ in „Actions“ again
Name the second key „homescreen-wallpaper“ and set „Boolean“ and „true“
Save the file and add it back to your device by dragging it back into iPhone Explorer by overwriting the original file. Wait a few seconds and restart your iPhone

That`s it, desktop wallpaper is applied and multitasking is activated, you can start it by pressing the homebutton twice.

How to change the apple signature server to saurik`s

2010-04-19T13:11:00.000-07:00

We need to make invisible system folders in Mac OS X visible. The easiest way to do this is to download a software called inVisibles here: inVisibles 1.5
Open the Software and click on „visible“.
Now you can browse to the „etc/“ folder on your harddrive. Search for a file called „hosts“. Copy it to your Desktop by dragging it there and open it with Textedit.
Add the following entry to the bottom of the text: „74.208.10.249 gs.apple.com“

Choose „save as“ and uncheck the „use .txt extension“ box, save the file under the original name „hosts“ on your desktop.
Drag it back to the „etc/“ folder and choose „overwrite“. Follow the instructions on the screen.

You should be able to activate your iPhone with iTunes!

That`s it, worked fine for me. You can restore your iPhone with your saved 3.x backups. To backup from 4.0 with iTunes you need to install the latest iPhone OS 4.0 SDK (google).

How to REALLY activate iPhone OS 4.0 beta without UDID Registration by 3asy

2010-04-19T11:14:00.000-07:00

This Guide works ONLY with the iPhone 3G and the iPhone OS 4.0 b1 due to the limitations of the redsn0w jailbreak!

Have you been trying almost everything to get the iPhone OS 4.0 Beta to work like I did and asked yourself why all the „guides“ doesn`t work? They just coudn`t work because they were all fakes. You can NOT run a customized .ipsw file on a non-jailbroken device (read here why)!

The iPhone dev team released the new redsn0w Beta2 Jailbreak for the iPhone 4.0 Beta1. It jailbreaks your device but there`s no hacktivation included, what means that the UDID registration is still needed to activate your device!

I figured out a way to combine the „fake“ guides to a single one that WORKS! :-)

I will not take any responsability for broken devices, this is just for experimental purpose!

Guide:

Download a copy of the iPhone OS 4.0 Beta (google: "os4-iPhone1,2_4.0_8A230m_Restore.ipsw download")
Install this Version with iTunes on your device (Press alt while clicking on the restorebutton in iTunes and choose the iPhone 4.0 .ipsw file manually)
Download the redsn0w 0.9.5 BETA2 from here: redsn0w 0.9.5 Beta2
Run redsn0w and follow the on screen instructions.
Wait till the device reboots and wants to activate with iTunes
Download iPhone Explorer from here: iPhone Explorer 1.1.8.3
Open iPhone Explorer and navigate to System/Library/CoreServices

Copy SystemVersion.plist to your desktop by dragging it out of the window
Open the file with Textedit and delete the following lines:

Save the file and drag it back into iPhone Explorer, choose „overwrite“
Wait a few seconds and restart your iPhone.

Now you can activate it with iTunes. I`m not sure if this is always possible because I changed the Apple iTunes signature server to Saurik`s.

If your iPhone still won`t activate just follow these steps to change your signature server:
How to change your apple signature server to sauriks

That`s it, worked fine for me. You can restore your iPhone with your saved 3.x backups. To backup from 4.0 with iTunes you need to install the latest iPhone OS 4.0 SDK (google).

I had some problems with 3G, mms and internet tethering after the installation. Follow these steps to reactivate these features:
How to enable mms, data service and internet tethering

You may have noticed that multitasking and homescreen-wallpaper doesn`t work on the iPhone 3G. To activate these hidden features follow this guide:
How to activate homescreen-wallpaper and multitasking on the iPhone 3G

Cydia has a blank icon and there are no entrys? Follow this guide:
How to add the cydia sources and repair the blank cydia icon

Demo-video on youtube:

I tried to do this with the new iPhone OS 4.0 Beta2 by working on the redsn0w beta2, read here why it`s currently not working:
Why you can`t use the 3asy UDID bypass guide with the iPhone OS 4.0 Beta2

Not satisfied with the iPhone OS 4.0 beta1/2? Have you tested it and want back to 3.1.3?
Here`s the guide:
How to downgrade from the iPhone OS 4.0 beta1/2 to firmware 3.1.3 for Windows & Mac

If this guide helped you or saved you the money for an UDID registration feel free to leave a comment.

Stay tuned, 3asy