Complete instructions for jailbreak for iOS: where to download and how to install. Complete instructions on jailbreak for iOS: where to download and how to install What is jailbreak

Jailbreak iPhone 3G – although this topic has not been new for many years, it is still relevant. Despite the fact that new smartphone models are constantly being released, people still have a large number of devices released not only in this, but also in the last decade.

Below are detailed instructions for jailbreaking an iPhone 3G, which will help you install third-party software on your phone. However, all actions that you perform with your iPhone will be done at your own peril and risk.

DIY iPhone 3G Jailbreak – Preparation

Download firmware 2.1 for iPhone 3G, you can get it here. It is universal for all countries.
Install iTunes 8 if it is not already installed.
Let's update through iTunes by holding down the Shift button and clicking on "Update", make sure that your iPhone is activated.
Let’s go to “computer management/Services and applications/Services/Apple Mobile Device/Properties/ - startup type “Disabled”, status “stop” - apply.

Jailbreaking iPhone 3G – the first stage

Download the QuickPWN application with all the necessary packages
Let's launch QuckPWN, select the firmware, in our example it is iPhone1,2_2.1_5F136_Restore.ipsw (see 1). We check the boxes next to Cydia (recommended) and Installer (at your discretion), while in NO EVENT do we check Unlock iPhone, because unlocking for the iPhone 3G is not yet available! Next, simply follow the program’s instructions step by step.
After the reboot, we do not touch the phone, we wait for the end of BootNeutera activity - literally a few minutes.
If the Cydia and Installer icons do not appear, then move on to the next steps.
Again we go to the Apple Mobile Device autostart service.

Jailbreak iPhone 3G – finalization

Loading Total Commander and t-pot plugin.
We install Total Commander, launch it, find the downloaded plugin on the disk, enter it without unpacking it (the plugin will be installed automatically).
Download the new patched MobileInstallation.
In Total Commander, go to “Network Places” (in the drive selection list) and select “t-pot”, the iPhone must be connected by cable to the computer.
Place the MobileInstallation file in /System/Library/PrivateFrameWorks/MobileInstallation.framework.
Be sure to make a backup of the original file!
Using Total Commander, delete the file /private/var/mobile/Library/Caches/com.apple.mobile.installation.plist
Reboot the iPhone. We make sure that the icons of the CD and the installer appear on the iPhone desktop.

That's all! iPhone 3G jailbreak completed.

The Dev-Team has released the official release of PwnageTool 4.01 for creating custom ipsw files for iOS 4.0. In other words, jailbreak iOS 4 has been launched for iPhone 3G, iPhone 3GS and iPod touch 2G. Custom firmware .ipsw files created using PwnageTool update iPhone to iOS 4 from jailbreak without updating the firmware. iPod models

touch 2G MC and iPod touch 3G are not yet supported.

A few important notes on jailbreak iOS 4 from the Dev-Team:

Jailbreak iPhone 3GS

Currently PwnageTool only works on jailbroken devices with an old bootrom.
If you have a jailbroken iPhone 3GS with an old BOOTROOM and you did not use Spirit to jailbreak, then you can create an ipsw using PwnageTool 4.0 and install the jailbroken firmware in recovery mode.

If you have an iPhone 3GS with the new BOOTROM, you're out of luck. Jailbreaking your iPhone 3GS is not supported by PwnageTool 4.01.

Jailbreak iPhone 3G
If you have an iPhone 3G with jailbreak 3.1.2 (but not with Spirit), then you can create an ipsw file using PwnageTool 4.01 and install the firmware in recovery mode or DFU. If you have new iPhone
3G, you can recover ipsw file from PwnageTool 4.0 in DFU mode.
If you have an iPhone 3G with jailbreak 3.1.3, then an error may occur in recovery mode. If this happens, restore in DFU mode.

As an alternative to PwnageTool for iPhone 3G, you can use redsn0w (on Mac and on Windows)

IMPORTANT! If you need to enter DFU mode, use PwnageTool only.

Jailbreak iPod touch 2G
If you have an iPod touch 2G (not MC) with jailbreak (not using Spirit), then you can use recovery mode.

As an alternative to PwnageTool, you can use redsn0w for non-MC iPod touch 2G (on Windows and Mac).

Jailbreak iPhone iOS 4 using PwnageTool 4.01 Step 1

. Download and install the latest version. Step 2 . Launch iTunes and sync iPhone with your computer to create backup copy

all data, including settings, applications, music, contacts and photos. Step 3 . and for yours iPhone models

or iPod touch. Transfer the files to your desktop. Step 4

. Launch PwnageTool 4.01 and select your device (iPhone or iPod touch) Step 5 necessary firmware for your device as shown in the screenshot:

Step 6. When asked about iPhone activation via iTunes, click YES only if you have an officially unlocked device! In this case, the utility will update the iPhone baseband to latest version.

Step 7. Now PwnageTool 4.01 will create a custom .ipsw file for your jailbroken iPhone.

Optional: To restore the firmware, you must switch to DFU mode. To do this, turn off the device (while holding the power button). Next, switch to DFU according to the instructions in the program.

After this, the screen will notify you that it has entered DFU mode and successful creation file.ipsw.

Step 8. After creating the .ipsw file using PwnageTool 4.01 (iOS 4 with jailbreak), you must restore the iPhone to this firmware. To do this, click on the iPhone icon in iTunes. Now, while holding down “ALT” on your keyboard (or “Shift” on Windows), click the “Restore” button in iTunes (not “Update” or “Check for Updates”).

In the window that opens, select the created firmware on the desktop with a name like “iPhone1,2_4.0_8A293_Custom_Restore” and click OK.

Step 9. iTunes will do the rest automatic mode. Be patient. Wait for iTunes to install new iOS 4 with jailbreak for iPhone. After iPhone installations will automatically reboot. Now you have an iPhone with jailbreak iOS 4 in your hands.

Step 10. After you have jailbroken, all you have to do is restore all settings, applications, music, contacts and photos to the new iOS 4 firmware with jailbreak, as described in step 2.

This article - detailed instructions by jailbreak for iOS. Along with frequently asked questions about everything jailbreak related, you will find links to detailed guides for all firmware versions how to hack your iPhone, iPad, iPod touch and Apple TV.

If you already know a lot about jailbreaking and are only looking for how-to guides, just skip to the section on how to jailbreak: just find the software version and the type of device you have to get personalized instructions. If you are new to this. and want to know more, we invite you to spend a few minutes and familiarize yourself with all the nuances in more detail.

What's the freshest thing right now?

The newest jailbreak utility supports firmware up to iOS 12.1.2. Although there are “crooked” versions for older firmware, they have nothing to do with full-fledged tools.

On this moment latest version, which can be jailbroken - iOS 12.1.2.

Latest utilities for iOS jailbreak- un0ver and Chimera. Both support iOS 12.0-12.1.2. But we recommend unc0ver, because... it uses Saurik's Cydia rather than Sileo for package management and fine tuning systems. But this may change in the future.

For device owners A12 or A12X, namely: iPhone XS, iPhone XS Max, iPhone XR, 11″ iPad Pro(2018) or 12.9″ iPad Pro (2018) 3rd generation, must use Chimera, since unc0ver doesn't support these new devices yet.

The latest version of tvOS that can be jailbroken is tvOS 12.1.1.

What is jailbreak?

Jailbreaking is a process by which Apple's operating systems are modified to remove restrictions and give the user more control over the device. These changes allow programs to run without digital signature, as well as reading and writing to the root file system, which is prohibited by default on Apple devices. Enhanced privileges allow you to configure and seamlessly install applications that are not available to users with standard devices. Jailbreaking is most popular and associated with mobile operating iOS system by Apple, although it is also used on tvOS and watchOS.

Typically, a jailbreak adds an unofficial application installer to the device that allows you to download third party applications, settings and extensions not available in App Store. These apps open up endless possibilities for doing things on your iOS device that a non-jailbroken iOS device would never be able to do. The most famous and large of these application installers is Cydia.

Cydia has many subtle custom settings that allow you to customize appearance, the behavior and capabilities of your device, bypass Apple and carrier restrictions, connect to other devices remotely, and generally bring life to your iOS device.

Jailbreaking will allow you to use paid apps from the App Store for free!

Main advantages of jailbreak

The main reason why users jailbreak is to install third-party applications and tweaks, which Apple does not allow into the App Store for policy reasons. There are hundreds of apps that don't meet Apple's requirements or do things Apple prohibits on iOS devices. There are no tweaks in the App Store at all, since they are not applications. These are extensions, additions or modifications to already installed applications, as well as to the operating system itself.

For example, Apple doesn't allow you to customize the device's overall user interface. Thanks to the jailbreak community, there are many settings that completely change the appearance of your iPhone, be it changing icons, hiding icon names, adding more than four applications to the dock, adding a dark mode and many more features.

If you value functionality over aesthetics, then jail may be right for you. Also popular are feature tweaks that make subtle improvements to the way your iOS device works: more convenient work with a text cursor, working with complex gestures and button combinations, installing applications from unknown sources, wireless connection to other devices via SSH, displaying information about Wi-Fi channel and signal strength. The list can go on for a very long time. WITH using Cydia you can customize the device for yourself and make it unique.

Is Jailbreak Legal?

So, let's clear up a common misconception: Jailbreaking in the US and abroad is completely legal at the moment. Until 2010, Jail was considered illegal by the US government due to copyright violations. However, now the jailbreak process is not considered so widely, and the issue of copyright is omitted.

In other countries, jailbreaking does not fall into the category of either legal or illegal, provided that copyright is not violated. In short, there's really nothing to worry about here. Even if you don't live in the US, there's virtually no chance that Apple will come after you for hacking your device. There have never been any precedents in any country.

Please note: jailbreaking is not illegal.

However, any offenses you commit on this device remain illegal. If you use jailbreak to download illegal torrent movies, download paid apps for free, or commit other cyber crimes and copyright violations, you are breaking the law. Therefore, use jailbreak only to customize the device as much as possible for yourself.

Does Jailbreak void your device warranty?

Yes and no. Yes because if you go to an Apple store with a broken device to get support, repair or service, you will be turned away (assuming they notice). Apple does not allow jailbreaking in its warranty agreement. It's illegal for Apple to stop you from doing what you want with your device, but it's legal to refuse to provide any support if you've done something they don't like.

“Apple strongly recommends that you do not install or use any software to modify the iOS operating system without permission. Additionally, it is important to note that unauthorized modification of the iOS OS is a violation of the terms license agreement. Therefore, Apple has the right to refuse service to all users of a jailbroken iPhone, iPad or iPod touch.”

However, there is an answer No. If you need to take your device to an Apple store, simply restore it to factory settings in advance. This will completely eliminate all traces of tampering and the device will be accepted by Apple under guarantee. It is impossible to know that the device has been hacked.

Can a device turn into a brick?

You may have heard some horror stories about people who tried to jailbreak their iPhone or iPad and ended up turning it into a useless brick. While this could have happened in the very early days of the iPhone, it is now so complex that it is simply impossible for any average user.

The worst thing that can happen when you first try to hack a device is that it becomes unresponsive, which is usually fixed by a hard reset. Even complete damage file system can be eliminated using the function iTunes recovery. The only danger after jailbreaking is installing incompatible settings or downloading something unsafe. Most versions of jailbreak include a safe mode that disables all your settings in case of incompatibility, so that you can easily remove them and continue using the device.

Finally, remember that you can always restore your iOS device to factory firmware, this will fix any non-hardware related issue. But keep in mind that this will result in the jailbreak being lost until it is released for an updated version of iOS.

Is jailbreaking the same as unlocking?

No, jail and unlock are two different things. Jailbreak removes restrictions on software Apple, and unlocking removes restrictions imposed by your mobile operator. As noted earlier, jailbreaking an iPhone allows you to install third-party applications and modifications, while unlocking allows you to use your iPhone with a different cellular provider.

Will it be possible to use iTunes and the App Store after jailbreak?

Yes, you can use iTunes and App Store after your device is jailbroken. In principle, nothing will change. The only slight inconvenience is that some Apps Store apps such as banking apps contain a jailbreak detection feature that prevents them from launching. This inconvenience can be circumvented using a tweak. The most noticeable change to your iOS device will be that after jailbreaking, you will have a new app installed called Cydia.

What is Cydia?

In short, Cydia is the App Store for jailbreak applications. Just like the App Store, you can browse Cydia for new additions to your device, read about them, purchase or download them, and then install and use them. Most applications and modifications in Cydia are free, but it's not uncommon for really worthwhile developments to be offered for a few dollars.

Does jailbreak prevent you from updating your iOS version?

If your iOS device is jailbroken and you decide to update it to the latest version of iOS, you will lose your jailbreak. Since there is usually no jailbreak for the latest version of iOS, you will have to wait longer for a new jailbreak tool. new firmware. Here the choice is yours - wait for a new jail or immediately switch to new version iOS, but without Cydia and the features that come with it. True jailbreakers update operating system his iOS devices only when a stable jailbreak tool comes out for it.

For every iOS update, Apple developers install jailbreak patches. Therefore, hackers need to start all over again and again look for methods to hack the latest iOS.

What types of jailbreak are there?

There are 4 types of jailbreak: tethered, semi-tethered, semi-untethered and untethered. The first two are not very common and will not be useful to the average user.

Almost all recent jailbreaks have been semi-untethered. This means that after each reboot of the device you need to re-launch the jailbreak application to reactivate the jailbreak and use Cydia features. Until you do this, your device will work as usual, as if there was no jail before.

Untethered versions of jailbreak are now being released less and less often due to difficulties in their implementation. They do not have the same restrictions that the semi-untethered have. An untethered jailbreak does not disappear after rebooting the device.

Is it possible to download applications from the App Store for free using jailbreak?

Yes, but we do not recommend installing pirated apps on your device. It's illegal and you're stealing money from hardworking developers. We do not condone piracy, do not help solve problems or provide support in matters related to piracy.

Is it easy to jailbreak?

Nowadays jailbreaking is very easy. Typically, you need to download a special jailbreak app and install it on your device using tools like Xcode or Cydia Impactor. Next, you need to launch one of these applications and simply press the “Jailbreak” button. For more earlier versions the hacking program had to be run on the computer, and the device had to be connected using a USB cable. But both methods are simple and do not require special knowledge and skills, only precise execution of steps according to step-by-step instructions.

Which jailbreak tool is considered the best?

There isn't really a "best" jailbreak, as tools typically only work with a specific set of firmwares until Apple releases patches. For this reason, they are constantly updated and new ones are created. For example, you would use one tool for iOS 7.1.2 and another for iOS 11.3. The "best" tool, therefore, will be the one that hacks the firmware your devices are currently running. Sometimes there are multiple tools for the same firmware, or (for older firmwares) Mac and Windows versions of the same jailbreak.

Is jailbreak paid?

No. Never pay anyone to jailbreak.

Hackers who develop jailbreaks do it for free. They sometimes accept voluntary donations, so if you appreciate the work that has been done to bring you a fresh jailbreak, feel free to give the developers something. However, there is never a charge to access this tool. If you find a website that pretends to be a new jailbreak and asks you to create account or pay for access, this is fraud. Always download jailbreak tools directly from the real developer's website. A list of genuine sites can always be found on our portal. Read below.

How to install jailbreak on iPhone, iPad, iPod touch and Apple TV

Select iOS version your device to find the jailbreak tool and how to use it.

iOS 12.1.3+

You're out of luck so far. There are currently no public exploits for iOS 12.1.3 and above, and all vulnerable firmwares are not digitally signed, meaning you can't downgrade them to that level. Block updates, stay on the lowest firmware level and wait for the next jailbreak.

iOS 12.0-12.1.2

unc0ver : all devices, except A12 and A12X. Recommended for iPhone X and younger.
Chimera: all devices, including A12 and A12X. Recommended for iPhone XS, iPhone XS Max, iPhone XR, 11″ iPad Pro (2018), and 12.9″ iPad Pro 3rd generation (2018).

iOS 11.0-11.4.1

unc0ver : all devices. We recommend.
Electra1141: all devices.

iOS 10.0-10.3.3

TotallyNotSpyware: All 64-bit devices. This is a web page that includes both Meridian and doubleh3lix jailbreaks. The jailbreak for your device will be automatically selected and launched. WE RECOMMEND.
doubleh3lix : all 64-bit devices, except iPhone 7 and iPhone 7 Plus.
Meridian: all 64-bit devices, including iPhone 7 and iPhone 7 Plus.
h3lix: all 32-bit devices.

TVOS

Apple TV 3: at the moment there is no jailbreak for any firmware, however

Hello. About a year ago I received a completely locked iPhone 3g with firmware 4.2.1, which only offered emergency calls.
That's what happened to him. It was impossible to even use it in any way, just to crack nuts.

I bought it for pennies at an American auction for tests and new experience. It said for spare parts, but the phone turned on by itself.

When I connected it to the computer, unfortunately I saw that it did not see it (I checked it on different versions Windows) and threw this iPhone out to collect dust in a dark place. And a year later I decided to take it apart, blow it out, and fix the cables.

And lo and behold, I connect it to the computer and it is identified by it. I was glad about this and immediately began looking for an iPhone 3g unlock in a search engine.

In this article I will describe what difficulties I encountered, so that if you suddenly get this rarity, you can also cope with unlocking it. My task was to unlock it so that it would at least turn on so that it could be used as an iPod for music and applications, but I completely unlocked it and now it is a good functional dialer.

Attention! This is not a manual for firmware and unlock. This personal experience and a description of the problems I encountered. I advise you to use specialized resources if you don’t understand something.

You will find all files and firmware in the search engine (if there are requests, I will add them)

So. We will need

— Iphone 3g 1 piece
— iPhone cord 1 piece.
— program redsn0w_win_0.9.6b5(version not lower than this)
— iTunes- download from the official apple website.
— iPhone firmware 1,2_4.2.1_8C148_Restore.ipsw .
— Common sense (optional)

So. First of all, we put the iPhone into recovery mode. As I noticed, there are several such modes, and if at one of the stages you enter it incorrectly, it simply won’t work.

When translating, the device must be connected to the computer.
Let's translate it like this.
— Turn off the smartphone.
— Press Home and Power button
— When we see the apple on the screen, release the power button but hold Home.
— When it says “Itunes” and a string is drawn, you can release the button.

iTunes will detect your phone in recovery mode. Be sure to press the button Shift and press "Restore Iphone" and select the previously downloaded firmware iPhone1,2_4.2.1_8C148_Restore.ipsw. We are waiting for it to install, it will take a few minutes. When everything is installed, the device will reboot.
Next you will have to work with the program Redsnow. This is where difficulties have already arisen (I spent several hours sorting out the errors piece by piece and searching the forums)

Firstly: if you have Windows Vista and above, right-click on the file Redsnow.exe and go to the program properties. Go to the compatibility tab, check the box “Run in compatibility mode for:” and select Windows xp service pack 3 and click apply.

After this, launch the program with administrator rights. Click "Browse" and open the same firmware that was installed in iTunes iPhone1,2_4.2.1_8C148_Restore.ipsw. and press Next.
The settings selection window will appear. First of all, we need JailBreak, check the box Install Cydia. If you have the same locked brick as mine that nothing can be done, put a tick on Install Ipad Baseband to upgrade modem to 0.6.15. If you have a working iPhone and you only need to jailbreak or unlock it to use SIM cards from any operator, then you don’t need to install iPad Baseband, after that you will not be able to use official firmware.

Click next.
— Turn off the device. The cable must be connected.
— Get ready and click Next. Suggestions will be written to put the device into recovery mode. Do as written:
— Hold power for 3 seconds and an apple will appear.
- Without letting go, press Home button and hold for 10 seconds (the apple will disappear, the device will seem to turn off, but don’t be alarmed).
— Release the power key but hold the Home key. When you see that the firmware has started, you can release the home key. All you have to do is wait for everything to be installed - about 5 minutes.

Do not try to enter the device into recovery mode in other ways, otherwise nothing will simply be installed, you need to do it exactly as described

Problems that I had.

If you have redsnow stuck on the process " Waiting for reboot" or "uploading ramdisk".

Perhaps you entered the recovery mode incorrectly (it should be as described in redsnow and the article “I personally couldn’t flash it for a long time because I didn’t enter it correctly.
— Also try reconnecting the cable to the device.
— Disable antiviruses and firewalls.
— Try changing the USB port.
— Try from another computer.

Do the following:

Restart the program. Open the task manager (Ctrl+Shift+Escape), select the processes tab, check the “Display processes of all users” checkbox, right-click on the redsnow.exe process and select set mapping. There, check the box only for CPU 1.
And again, select the firmware and do it as needed. If that doesn't help, try starting Windows in safe mode or try on another computer.

I didn't have any other problems. After Redsnow has done its job, the phone reboots and updates the system for a few minutes. And now we're already halfway there working Iphone 3. Go to Cydia, you will be prompted to install updates, be sure to do them.

Now we needed to unlock it for any SIM card. This is done by installing a tweak Ultrasn0w.
First way.
— Go to Cydia.
— Select sources — Edit — Add.
— And add the repository address ihacksrepo.com, but I already had it in the default addresses.
— Install Ultrasnow from there.

Unfortunately, I was unable to install from there, I had to download ultrasnow packages to my computer and download them from my computer via file manager ifunbox.
The utility consists of two files
mobilesubstrate.deb and ultrasn0w_1.2.deb .

Go through the file manager along the path // private/var/root/Media/Cydia/AutoInstall
and upload the file there mobilesubstrate.deb then reboot your smartphone.
Then you throw it there ultrasn0w_1.2.deb and reboot again. Now all that remains is to reboot again and any SIM card will work.

How to throw games and applications through a computer.
For such purposes you need appsync to your smartphone. Go to cydia, add to sources apt.alien.com and there you download the appsync utility for your version of IOS.

So, after all this I have a good dialer, although I think I will continue experimenting with it and will test custom firmware for it.

1. Firmware for iPhone 3G on iOS 4.

1.1. Download and install iTunes. Connect your iPhone to your computer using a USB cable.
1.2. If your iPhone firmware is lower than iOS 4 (iOS 3.0, 3.1.2, etc.), then you need to flash it to iOS 4.
How to find out the current firmware version:

By phone: Settings -> General -> About device -> Version
WITH using iTunes: see screenshot 1

Screenshot 1
1.3. Before flashing to iOS 4, you need to do data backup : contacts, SMS messages, photos, mail, notes, settings, game saves, etc. To do this, right-click on the device in iTunes and select " Copy". It may take several minutes to create a copy.
Screenshot 2

1.4. On your keyboard, press " Shift" and click on iTunes " Restore". An explorer window will open, specify the firmware file in it iPhone1,2_4.0_8A293_Restore or iPhone1,2_4.0.1_8A306_Restore. The message " iTunes will erase and restore your iPhone to iPhone OS 4.0 and verify this restoration with Apple.", press " Restore"Wait 5-10 minutes while the recovery takes place. It is advisable not to touch the phone and computer.
Screenshots 3 and 4

1.5. After flashing the firmware, activation is required via the Apple server (Internet connection required). If you have an official phone (PCT), then simply insert any SIM card and the phone will be activated. For locked phones (unofficial), you must first jailbreak (step 2) and then install Ultrasn0w from Cydia(add to Cydia repository repo666.ultrasn0w.com and run ultrasn0w 0.93).
Screenshot 5

1.6. Next a window will appear " iPhone setup". There are two options:

If you needed Restore from backup" and press " Continue". Data recovery will begin and may take several minutes.
If you Not needed contacts, SMS messages, photos, mail, notes, settings, game saves, etc., then select " Set up like a new iPhone" and press " Continue".

Screenshots 6, 7 and 8

2. Jailbreak iPhone 3G with iOS 4 using Redsn0w.

2.1. To jailbreak you will need a program Redsn0w 0.9.5b5_5. It can be downloaded from the official Dev-Team website:
2.2. Launch Redsn0w 0.9.5b5_5.exe(right click on the file and "Run as administrator"). Click " Browse" and in the explorer window specify the firmware file iPhone1,2_4.0_8A293_Restore. The file will begin checking, after which the message " IPSW Successfully identified". Press " Next >". Next we will prepare the firmware for jailbreak, do not press anything, wait.
Screenshots 9, 10, 11 and 12

2.3. In the next window you can additionally select what you need:

Install Cydia- install the Cydia online store;
Verbose boot- running lines when loading;
Custom boot logo- your own logo when loading (instead of the white Apple logo);
Custom recovery logo- your logo when restoring the firmware;
Enable multitasking- enable multitasking;
Enable homescreen wallpaper- enable desktop wallpaper (it’s better not to enable it - there are not enough hardware resources) ;
Enable battery percentage- battery charge in percentage.

After selecting, click " Next >".
Screenshot 13

2.4. Make sure your phone is turned off (press and hold Power button on 5 second and drag the slider " Switch off"), and connected to the computer.
Screenshot 14

2.5. Before you press " Next >"look carefully at the screenshots. When the first line is active, hold the button Power 3 seconds. Second line - without releasing the button Power, hold down the button Home for 10 seconds. Third line - release the button Power but keep holding on Home 30 seconds (until white screen on iPhone). The jailbreak process will begin. Don't press anything, wait. The message will appear Done!, press the button Finish. The process will still be ongoing on the phone. Once finished, the iPhone will reboot. That's it, you have an iPhone 3G with iOS firmware 4 and jailbreak.

*If an error occurs while running RedSnow and the program exits, simply repeat all steps from 2.2 to 2.5.

Screenshots 15, 16 and 17