Update iPhone 4 to iOS 4.1 Without Baseband Upgrade
Apple has released the iOS 4.1 which features a new baseband 2.10.4. If you update to iOS 4.1, you will lose the jailbreak and unlock.
The latest Ultrasn0w 1.1-1 nor the downgrading back to iOS 4.0.x (with SHSH blobs) will not be able to unlock the iPhone 4. Notcom has found a way to upgrade to iOS 4.1 without upgrading the baseband to 2.10.4 and allowing you to unlock the iPhone 4 on iOS 4.1 as soon as the jailbreak for it is released.
Here is a simple step by step guide  to update iOS 4.1 while preserving the 1.59.00 baseband:
- Terminate all working applications.
- Download the latest version of TinyUmbrella (4.1.3) from here( Mac/ Windows/Linux) and launch it.
- Download the iOS 4.1 from here.
- Press the ” Start TSS Server” button
- After that launch iTunes and press restore (Not Update) your iPhone 4 to stock iOS 4.1. To do this, press and hold Left “Shift†button on Windows (left “alt†button on Mac) on the keyboard and then click on “Restore†(Not “Update†or “Check for Updateâ€) button in the iTunes  and then release this button.
- Now iTunes you the location select the location for your downloaded firmware file. Select that ipsw file and click on “Openâ€.
- iTunes will show 1004 error (baseband update failed). You do not have to worry because it’s part of the plan.
- Click on “Kick Device Out of Recovery†to bring your iPhone back from the recovery mode.
- Restart your iPhone 4.
It’s done. Be surprised to find your iPhone 4 working on iOS 4.1 with the old baseband 1.59.00!




have to wait for the Mac OS X version of Limera1n which will made later available to download. Now you could download Limerain for Windows to jailbreak all devices on iOS 4.1 and iPad on iOS 3.2.2.
message on emergency mode screen after jailbreaking their devices. Don’t worry because here is how to fix Different SIM Detected error shown on emergency mode.

or iPod Touch. You could use the Volume Boost App to increase iPad volume. The application could be used in jailbroken Apple devices since it is an app available via Cydia. Here are the steps to install Volume Boost 4.0 to increase iPad volume.












been released and is available to download. But if you have an unlock on your device, then don’t go for the jailbreak with redsnow 0.9.6 now as it will update your baseband. So wait for the unlock to be released and then jailbreak iOS 4.1 with redsnow 0.9.6.
