Updating iphone baseband
Thanks to a new root utility called Ping Pong Root from developer idler1984, almost all variants of the Samsung Galaxy S6 and S6 Edge can now be rooted without tripping the KNOX counter.
And yes, that even includes the AT&T and Verizon Wireless models, whose locked bootloaders have prevented other root methods from working.
This is the best approach to use, here’s where you will want to look and what to look for: With that information you’ll want to match the model number up to the actual phone model, which is important for instances where it’s not immediately obvious by visible inspection.
Sometimes you see i Phone versions referenced as “i Phone 9,2” which is the product ID version type number, here is where you can find that in i Tunes with a device connected to the computer: You must click on the serial number to rotate to the device product version identifier, you will also see IMEI number and some other details in this screen.
Just keep clicking until you see the product type ID in the (#,#) format.
The product type ID number is basically a versioning system, like “the 8th i Phone released, second model” for i Phone 8,2.
Update#3: Now you can also use Tiny Umbrella to kick your device out from recovery mode. Update#8: Download Rec Boot 2.2 for Mac OS X 10.5.x and above.
This signed IPSW will NOT jailbreak your i Device but will only restore your i Device to stock firmware without need of pointing i Tunes to Cydia server using Tiny Umbrella or HOSTS file.
Restoring this custom signed IPSW will not only restore directly (w/o Tiny Umbrella) but will also jailbreak your i Device on that firmware.
In this tutorial, i will be creating signed IPSW of i OS 4.2.1 for my i Phone 4.
Normally you need to put your i Phone into recovery mode when your want to do a firmware restore.
Rec Boot has very simple interface, only two buttons i-e "Enter Recovery Mode" which puts your i Phone to recovery mode and "Exit Recovery Mode" which takes your i Phone out of recovery mode option.