We reported earlier about the release of Redsn0w 0.9.14b1 to add the support for 06.15.00 baseband downgrade. And as promised the dev team has released Redsn0w 0.9.14b1. The tool is available for both Windows and Mac. The downgrading procedure is pretty simple. Its just another option to check.
You’ll be able to downgrade to 05.13.04 baseband from the iPad baseband using this option. There are nothing else to check on except for the normal procedures. Just download Redsn0w 0.9.14b1 from below and do as said here. You’ll be able to successfully downgrade to a lower baseband.
It might take a little longer than the usual jailbreak procedure as Redsn0w will have to downgrade your baseband. So don’t do anything crazy. Just be cool and wait till Redsn0w finish the entire work. You’ll be able to get your unlock through Ultrasn0w, with full compatibility of GPS and the usage of stock ipsw will also be enabled once you downgrade.
Download Redsn0w 0.9.14b1 from below: