Please note that this tutorial is only for iPhone 4 and 3GS, which run on the system versions lower than iOS7.0, with 4-bit passwords!
If you change a new password and then forget it suddenly, it would be a little hard for you to deal with it. iOS Restoring could remove your data. However, the 3uTools can’t only jailbreak and flash iOS devices, but also provide a variety of useful advanced features, for example, retrieving the device’s password. You can tap “Jailbreak→Advanced” to find it. But the tool can only support the iPhone3GS and iPhone 4 running the system lower than iOS7.0 and then retrieve the 4-bit passwords. Anyway, please do what 3uTools reminds.
Step 1. Please connect your iPhone to the computer via original Apple USB cable, and then start 3uTools.
Step 2. Please ensure your iPhone in DFU Mode. As to the steps to enter into the DFU mode, you can do according to the tool’s reminders. Then Tap Flash Jailbreak→Advanced→Retrieve device’s password.
Step 3. During the password reading process, the white data rolls over on your iPhone device screen.
Step 4. Keep waiting instead of making other operations before the password reading process is completed. Finally, we get the password:1234
We have preset a very simple password for this tutorial, and thus it takes about 8 minutes to finish the process. As to the iPhone with a more complex password, it will take more time. So, be patient if you preset a complex one!
And then after you need to restart your iPhone by pressing the Home button and Power button simultaneously for 10 seconds.
FAQ about 3uTools retrieving iPhone’s password:

• Iphone 3gs Battery
• Iphone 3gs Flash Tool Software

1. Why the original Apple USB cable?

Try your best to use the original Apple USB cable in order to ensure the successful match of input impedance, and thus the transmission of data is not influenced by the physical connection.

The actual SHSH blob backup portion does not make any modifications to your device. All it does is save your SHSH blobs to a file on your desktop and/or create custom firmware. IFaith in itself cannot make any modifications to your device. You must use iTunes or some other tool to make the modifications. Restoring to custom firmware. Re-flashing the 06.15.00 iPhone 3GS BaseBand November 2, 2011 24 Comments Only for 3GS users with 6.15.00 bb or those that want 6.15.00 and know about potential loss of GPS. Redsn0w is one of the easiest and most popular tools to jailbreak iPhone, iPad and iPod Touch developed by the iPhone Dev team. Check out this webpage for the links to our latest step-by-step tutorials to jailbreak your iPhone, iPad or iPod touch using Redsn0w. Download links for the latest version of Redsn0w: Redsn0w 0.9.15 beta 3 Mac, Windows. IPhone Rip - a best professional iphone transfer and iphone manager tool. Joboshare iPhone Rip also supports all types of iPods including iPod classic, iPod nano, iPod touch, iPhone 3G, iPhone 3GS and so on. IPhone Rip Support all types of iPhones. 3uTools is a tool for flashing and jailbreaking Apple’s iPhone, iPad, iPod touch, provides two ways, Easy Mode or Professional Mode, to flash Apple mobile devices, selects the appropriate firmware automatically and supports a rapid downloading speed.

2. Why the only iPhone 3GS and 4 get such support? What about iPhone 4S, 5,…?

Currently, the tool’s feature of retrieving the device’s password can only support the iPhone 3GS and 4 running the system versions lower than iOS 7.0, and at the same time, 3uTools can only read 4-bit passwords! In addition, this feature will become the invalid if both devices are upgraded to iOS7.0 or higher iOS versions. Actually, the iPhone 4S, 5 and other above iOS devices have different CPU architectures.

3. Why can the tool only support 4-bit password reading?

The 3uTools try various different password combinations until one of them succeeds. As to 4-bit password, there are tens of thousands of number combinations (from 0000 to 9999). So it has been a very complex task for the software to work out the correct password. Sometimes, you will need to spend half an hour or more in order to retrieve a complex 4-bit password. By the way, please don’t do other various operations, for example, deleting any system file, when you forget the password, but use the 3uTools to help you retrieve it.

Download iPhone 3G Flash File, Firmware, Stock ROM. This is the latest firmware version of the Apple iPhone and restores a file which is an Ipsw file. You can flash this flash file with iTunes software. And by flashing this file, you can easily remove your phone lock, fingerprint lock, pin lock. Here’s how to flash or restore iPhone smartphones. It is mentioned in full details and the download link of the firmware is also given.

• Itunes FlashTool – Download

If your iPhone is locked with iCloud id, remove flash by flashing it. Or remember iCloud id. Here the flash file only to unlock and restore the phone’s password.

Read More: Download All Models Phone Original Firmware (Flash File)

How to Flash iPhone 3G:

Iphone 3gs Battery

• Download the iPhone 3G Flash File above
• install iTunes software
• Run the iTunes logo on the desktop after installing
• Once the tools are open, the phone has to be connected.
• To connect the phone to iTunes, press and hold the center button/home button and place the data cable in the phone.
• After that, the option of restore will come. Press and hold the shift button from your computer keyboard and select the Ipsw flash file.
• Restore will start after selecting the file
• This method will work without an internet connection

Iphone 3gs Flash Tool Software

Note: During flashing, do not remove the data cable from the phone, otherwise the phone can go into a dead mode.