How to Check Your iPhone Bootloader Version (Mac)

Posted April 15, 2009 at 12:45pm by iClarified | Please help us and submit a translation by clicking here | 95665 views
Spanish  Slovak  Polish  

These are instructions on how to find your iPhone Bootloader version using BBUpdaterExtreme. You can use these instructions to determine if an unlock is possible on an accidentally upgraded iPhone 3G.

Before you begin please have MobileTerminal and OpenSSH installed from Cydia. You can find MobileTerminal in the Terminal Support section of Cydia. For instructions on how to install an application from Cydia you can use this tutorial.

Step One
Download BBUpdaterExtreme from here and save it to your desktop.

Step Two
Launch the Terminal application from Applications:Utilities.

Step Three
Make sure you iPhone is connected to the same wireless network as your computer and determine its IP Address using these instructions.

Step Four
Enter the following command into the Terminal window replacing the IP Address below with the one for your iPhone.
scp ~/Desktop/BBUpdaterExtreme root@

You will be asked for your password. Enter alpine as the password.

Step Five
Input the following command to ssh into your iPhone.
ssh root@

You will asked for your password. Enter alpine as the password.

Step Six
Input the following commands into the Terminal window
cd /bin

chmod 755 BBUpdaterExtreme

launchctl unload /System/Library/LaunchDaemons/

Step Seven
Your iPhone will now loose its network connections. Launch Mobile Terminal from the iPhone SpringBoard.

Step Eight
Type su into the terminal window. When asked for a password input alpine as the password.

Step Nine
Now input BBUpdaterExtreme queryversion to get the bootloader version of your iPhone. It will look something like Boot Loader Version: ICE2_BOOT_05.08_G2M3S2

NOTES: You will need to restart your iPhone to regain network connectivity. You could also type launchctl load /System/Library/LaunchDaemons/ into the terminal window.

Add Comment
JollysRiz - February 28, 2012 at 9:03am
I need help to DOWNLOAD free XRumer 7.0.12 Elite!!! Somebody, write me link to get it, PLEASE! It the best program for SEO! Really need it! Thank you all!
JollysRiz - February 21, 2012 at 11:18am
I want DOWNLOAD warez X-Rumer 7.0 ELITE! Somebody, write me link to download, PLEASE! It the best program for SEO! Really need it! Thank you!
MaryXl84 - December 8, 2011 at 5:14pm
Good Morning people. How are we feeling today? I will be leaving for university soon. This information really helped my focus on my academic goals in highschool. If I were you, I would give it to as many people as you can. You will be able to save it to your computer here:
Antuanettegorp - November 17, 2011 at 7:32am
It's REAL power for internet-promo and for mass-posting! English desription of XRumer 7.08 Elite: + it can mass post to forums, blogs, guestbooks, CMS's, socials + absolutely automatically break a lot of captchas (more than 100 types of captchas, included ReCaptcha!) + break more than 15.000 types of textcaptchas (such as "1+1?", "what color of snow?", etc.) + autoconfirmate all links from email + mass register profiles on forums, edit it, upload avatars, writes signature, etc. + have a lot of macroses + autoregistrate email accounts on GMail,, etc. + have special modes, for example Mass-PM, for sending PM's to all forums members + more, and more! For Russian users: + automatically mass send messages in VKontakte, Odnoklassniki (auto-break captcha too!) Want to post your message more than 100.000 different site all over the world?! You can make it ONLY with XRumer 7.08 Elite! (latest version was updated in November 2011) Need more info? Just google it ;)
keith - November 8, 2011 at 7:54pm
MobileTerminal didn't work for me (as warned; not compatible with iOS 3 or 4), but I was able to use pTerm using root@ to login.
35 More Comments
Follow iClarified
Apple Extends iPhone 5 Battery Replacement Program
Apple has extended its iPhone 5 Battery Repla...
CNN App Gets Updated With Today Widget for iOS 8
CNN has updated its iPhone app with a new Tod...
Apple Warns Users That Aperture Won't Be Available for Purchase Once Photos for OS X Launches
Vevo Music Video App Gets Updated With New Home Screen
The Vevo music video app has been updated wit...
Apple is Not Expected to Unveil New Streaming Music Service at March 9th Event