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How to Fix No Network Signal on iPhone 4 4.3.3 After PwnageTool Jailbreak?

Hi, I just have done a jailbreaking on my iPhone 4 here. It’s a factory unlocked iPhone, so I am able to use it with any local carrier SIM card. My iPhone is running on baseband 04.10.01 and I used PwnageTool to jailbreak it on my Mac. However, after jailbreaking, the iPhone got no signal bar. I’ve already tried everything I could to fix the problem, I also tried to edit and reset the network settings as well as restore it to stock firmware, but nothing happens. Some have suggested that I should jailbroke my device using Redsn0w, but I am not confident with that tool as it bricked my iPhone 3GS couple of years back. Can you guys please help me fix this problem on iOS 4.3.3? Cheers.

Asked by: Fredrick from New Zealand

Hello Fredrick, the No Network error is quite common issue after jailbreaking.  Anyway, you should re-run PwnageTool 4.3.3 or (, but this time, you should un-check the “Activate iPhone” option. For the sake of those who aren’t familiar with the jailbreaking process using PwnageTool, all you need to do is launch PwnageTool and then click on “Expert mode” then select your iPhone 4.  Now browse for the stock iOS 4.3.3 firmware for your iPhone. Then under “General”, deselect “Activate the Phone” and proceed with the jailbreaking process: build custom iOS 4.3.3 firmware file, put your iPhone into DFU mode by holding the Power and Home button for 10 seconds then release the Power button after 10 seconds but continue holding on Home button till iTunes recognized that your iOS device is in DFU mode, then restore the custom firmware into your iPhone via iTunes. You can refer on this post for detailed tutorial on how to use PwnageTool 4.3.3 ( on iOS 4.3.3 firmware.
Fix iPhone 4 No Network Error
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    dana8 years, 4 months ago

    How to fix on iphone signal network