how to jailbreak iphone 4 ios4

August 12, 2010 by  
Filed under gadgets

Jailbreaking is now legal, and what perfect timing.  Users of the latest apple unit Iphone 4 running on iOS4 can now jailbreak their devices!  To jailbreak means to allow your phone to install and run apps from places other than iTunes.

It is a browser based jailbreak, all you have to do is to browse to from your iOS device to jailbreak it. Servers are probably thrashed right now. Keep trying until you successfully load the page. This guide will show you how to jailbreak your iPhone 4. In case you actually need a guide.

Things to know about jailbreakme jailbreak:

  • Jailbreakme is a browser based jailbreak for all iDevices including iPhone 4 running on iOS 4.0 and 4.0.1.
  • Jailbreakme does not include a carrier unlock.
  • Jailbreakme requires your device to be activated or hacktivated, if you aren’t you are out of luck.
  • Jailbreakme requires your device on 3G service or WiFi connectivity.

Step by Step Guide on How to Jailbreak iPhone 4?

1. Open Safari on you iPhone 4. Browse to through our device and wait for the complete page load.

Open Safari

2. Once your page loads swipe your finger across “Slide to jailbreak“.

3. Now wait and watch while your device will begin to download the data necessary to execute the jailbreak procedure.


4. After it downloads, it will say “Jailbreaking. Sit tight” – Just wait patiently for it to finish.

5. Wait a few seconds while installation finishes and a new popup will warn that Cydia icon is added on the springboard.

Cydia installation

6. Go back home screen and click Cydia icon.

7. Click the first item “User“, it will cost a long time for loading.

Click User

8. When come to this screenshot, click the sencond item”Sources” to open sources.

Sources item

9. Click “Edit“.


10. The buttons will be changed like this, then choose “Add“.

Add source

11. Enter Cydia URL.

source URL

12. Updating the source data, this process need to connect to U.S. servers, if your WiFi is not available, you can change a try.

U.S. servers

13. Click the source of the first Hackulo.

source of Hackulo

14. Select the corresponding version of the AppSync, here we tested the U.S. version of iPhone 4, select the third.

AppSync for iPhone 4

15. Install.

At this point, your iPhone 4 is free. You can install software though Cydia source, you can also use iTunes to download software then sync to iPhone 4, even install local software with the third party software. After jailbreaking, you may also want to unlock your iphone (if it is still locked to your country’s local carrier), simply follow the instructions here on how to unlock your ios4 iphone os4.

After getting your Cydia on your springboard or dashboard, you may want to install installous.  Installous is an app that acts as a directory of most of the worthwhile applications (also found in iTunes) and you can download it and install it right there for free if you want to evaluate it first before buying. Follow this guide on how to install installous in your iphone 4, iphone ios4, iphone 3g, iphone 3gs, and Ipad, and ipod touch.

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4 Responses to “how to jailbreak iphone 4 ios4”
  1. Ahmad says:


    I have the new iPhone 4 version 4.2.1 (bc148) am trying to dowload jalbreak but I found msg in that I have to dowgrade my vesion to 4.0.1 / 3.2.1, please assist what to do in details please I need to jailbreak my iphone

  2. sikandar says:


    is there any rick in jail breaking iphone 4 …. on 04.10.01, version 4.3???

  3. fiona says:

    i am doing lots of research lately.. this post made my day! =) thank you very much for the information! =)