iPhone 4 Stuck at Apple Logo? Here’s how to fix it!

Some users are claiming that their iPhones are stuck at Apple logo after a jailbreak app required a reboot to complete the installation. Don’t worry, there a simple solution to this problem.

The Problem:

• iPhone stuck at Apple logo and won’t boot completely.

The Reason:

• It is a jailbreak-only issue and doesn’t happen on non-jailbroken iPhones.
• May be, mobilesubstrate wasn’t properly functional on your jailbroken iPhone.

The Solution:

Update: Turns out that there’s a simpler way to fix this on tethered jailbreaks. Just plug your device into the PC/Mac, start redsn0w 0.9.9 beta 5 and select ‘Just Boot’ from ‘Extras’ and it will boot your device tethered.

• You need to restore your iPhone to an official IPSW and then jailbreak it again.

Step by Step Guide:

Read our disclaimer before proceeding.

• Disconnect your iPhone from the computer.
• Enter recovery mode by pressing and holding the home and power simultaneously for about 20 seconds.
• You should see an iTunes connect graphic on the screen, this means you have successfully entered recovery mode.

• 

  Recovery Mode

• Connect the iPhone with the computer.
• Start iTunes.
• iTunes would ask you to update, press OK and let the iTunes do the rest. Your iPhone will boot normally once done.

• 

  iTunes Prompt

• Jailbreak your iPhone again on the latest 4.3.1 firmware following this guide – using redsn0w.
• Enjoy, the problem should not occur again.

Got another problem?

• If you have got a white Cydia icon after jailbreak that crashes, here’s how to fix that.
• Got a locked iPhone? Here are the unlocking possibilities.