How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

October 10, 2010 by: 3

This tutorial will show you how to upgrade your iPhone 4 to iOS 4.1 without upgrading its baseband using TinyUmbrella for Mac. We recommend reading the TinyUmbrella Read Me located here before doing anything. The Windows version of this tutorial is here.

Please Note: This ONLY Works with the iPhone 4!

Step One
Download TinyUmbrella from here Also make sure to download the iPhone 4 iOS 4.1 Firmware located here
tinyimg How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

Step Two
Double click the downloaded Umbrella.dmg file to mount it. Drag the Umbrella app from the mounted dmg into your Applications folder. Then double click the Umbrella app to launch it.
41325 How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

41367 How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

41366 500 How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

If asked enter your administrative username and password.
41328 500 How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

Step Three
Make sure the device is connected, and Umbrella has detected the type of device and its firmware.
41336 500 How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

**If you haven’t already saved your SHSH blobs then click Save My SHSH.

Step Four
Hit Start TSS Server and make sure you receive no errors.
41331 How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

Once The TSS Server is “running” successfully, umbrella will kill iTunes. Leave TinyUmbrella Open.
41369 500 How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

If you do receive an error, DO NOT continue. Your restore will not work if the TSS server cannot be started.

Step Five
Open iTunes and Hit Shift+ Restore.
41368 500 How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

Browse to and select the iPhone 4.1 Firmware File.
41334 500 How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

Hit OK to Restore iPhone
41335 500 How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

Step Six
iTunes should give you error 1004. This is what we wanted, as it notes the baseband has not updated icon smile How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

Step Seven
Go back to the TinyUmbrella window and Click Kick Device Out of Recovery
41363 How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

*If you have issues here, try closing and re-opening TinyUmbrella.

Your iPhone will now be on 4.1 with the 1.59.00 baseband!

41365 500 How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)

**Thanks to semaphore for his work on this tool

Share this Story
Categories
Tags
Add a Comment on "How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)"

    3 Comments on "How to Update Your iPhone 4 Without Upgrading the Baseband (Mac)"

Leave a Reply

Follow us