iPhone 4 Baseband Chip Downgrade from 4.11.08 to 4.10.01 Service Now Available

Hello there! If you are new here, you might want to subscribe to the RSS feed for updates on this topic!

Baseband downgrade from 4.11.08 to 4.10.01 via chip replacement is now possible on iPhone 4.

UPDATE: If yours is locked to AT&T, get the official permanent unlock here. Check our Store for officially unlock iPhone on other network.

My team and I would like to present sort of a good news for those who are currently stuck on baseband 4.11.08 as we managed to downgrade an iPhone 4’s baseband from 4.11.08 to 4.10.01 earlier today on 22 October, 2011.

Editor's note: learn more by reading our ebook on starting your own iPhone repair & unlock business

However, It’s still not now possible to downgrade to 1.59.00 to make it unlockable with ultrasn0w. We have tried this numerous times even before Gevey Turbo SIM was released.

It’s similar to our baseband chip replacement service for 3G and 3GS, but this method requires two different chips to be replaced – the Infineon X-GOLD 618 processor chip and the Intel/Numonyx 128MB NOR DDR chip.

Once your iPhone 4 baseband has been downgraded to 4.10.01, you can then unlock it with a Turbo SIM.

There are a few tiny setbacks with this method – your iPhone serial number and IMEI will change. That means you can only hacktivate (activate) it with redsn0w or use custom hacktivated firmware in order to do a full restore. However, it is still possible to use original firmware to restore your iPhone 4 if you ever need to; unlike iPhone 3G/3GS on baseband 6.15.00 which doesn’t allow you to restore at all.

We are currently doing extensive testing and planning to launch this service very soon have launched this service. Customers who get their baseband downgraded using this service with us will also be getting a FREE Gevey Blue Turbo SIM worth $44.95. If you have the tools and skills to replace them youself, purchase the chips here.

Click here to read more about this service on our online store

Be sure to subscribe to us or LIKE us on Facebook to keep yourself up-to-date with new unlocking methods.

iPhone 4 Baseband Chip Downgrade from 4.11.08 to 4.10.01 Service Now Available was last modified: July 13th, 2019 by Joe Wang

Comments & Discussion

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.