If you want to jailbreak iphone 4s 5.1 the below jailbreak information is for you and you have to read very carefully before going for jailbreak 5.1 untethered or tethered, the iPhone 4S 5.1 jailbreak has not yet been officially released by reliable sources, and the jailbreak available for the time being is tethered (some people are trying for iphone 4s also and you can try but after making backup of your device and saving SHSH blobs).
There is one website that is claiming iPhone 4S 5.1 untethered jailbreak which is xpoison, I tried to open the download links but these seem to be broken. I don’t know if someone has got xpoison 5.1 iPhone 4S jailbreak or not. You can check this video. The video title is Xpois0n RC 2.0 Untethered Jailbreak iOS 5.1 for A4, A5, A5X Devices. Since I suspect this site therefor I am not giving direct link here but you can go to http://Xpois0n.blogspot.com.
The 5.1 jailbreak guide given below is for ios 5.1 and 5.0.1 tethered jailbreak and is compatible with iPhone 4S, 4, 3GS, iPad 1, iPod Touch 4G, 3G using latest version of RedSn0w 0.9.10b6. I have given below the download links for redsnow 0.9.10b6 and complete step wise guide to jailbreak iPhone 4s, untethered jailbreak iPhone 3GS 5.1, untethered jailbreak iPod touch 4G 5.1 , jailbreak iPod Touch 3G 5.1 and iPad 2 5.1 jailbreak.
Before continuing you have to note that:
- This is a *tethered* 5.1 jailbreak for non-A5 devices (i.e. other than iPhone 4S, iPad 2&3) that means each time you need to reboot your idevice you will need to use redsn0w and select the option of “Just Boot” as mentioned in below jailbreak tutorial. Otherwise your Safari and Cydia apps will not work/launch.
- Similarly If you want to use ultrasn0w for your carrier unlock, be sure to use a custom IPSW to update to 5.1 first. You have to use redsn0w for generating custome ipsw “Custom IPSW”.
- This jailbreak will become automatically untethered if your device has old-bootrom i.e. 3GS.
- iBooks is not working until next update of redsn0w is released
Below steps are very simple to jailbreak iPhone 4 on ios 5.0.1 and are also compatible with iPhone 3gs, ipod touch and ipad 1 on iOS 5.1 by using the latest version of RedSn0w 0.9.10b6.
Below are the steps on How to jailbreak 5.0.1 / 5.1
Important Note: This jailbreak is not for iPhone 4S jailbreak, iPad 2 or iPad 3 jailbreak if these are running ios 5.1 otherwise if they are running ios 5.0.1 then it is OK.
Step 2: Extract the zip file and run the RedSn0w.exe file to start the redsn0w jailbreak process.
Step 3: There are two buttons “Extras” and “Jailbreak”, click Jailbreak to jailbreak and install Cydia
Step 5: Follow the screen instructions to put your device in DFU mode. RedSn0w will detect iPhone 4 and start installation of jailbreak and select “Install Cydia” when asked. (If not you can follow steps to put your device in DFU mode as instructed by clicking Next in previous step again). Close RedSn0w.
Step 6: Boot Tethered your iPhone 4: Restart RedSn0w by double clicking the exe file.
Go to Extra option and click “Just Boot”
Your iphone 4 will restart and now it is jailbroken tethered.
Note: This is a tethered jailbreak and if you need to reboot your iPhone you need to do step 6 each time therefore you need computer to reboot your iPhone4.
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