Unc0ver semi-untethered Jailbreak has been released for iOS 11.3.1 to iOS 11 versions. It is compatible with beta versions of 11.4 too.
It is an Electra alternative with better stability, compatibility and success rate.
Version Compatibility : iOS 11.4 beta 3, iOS 11.3.1, iOS 11.3, iOS 11.2.6, iOS 11.2.5, iOS 11.2.1, iOS 11.2, iOS 11.1.2, iOS 11.1.1, iOS 11.1, iOS 11.0.2, iOS 11.0.1, iOS 11
Device Compatibility : iPhone X, iPhone 8, iPhone 8 Plus, iPhone 7, iPhone 7 Plus, iPhone 6S, iPhone 6S Plus, iPhone 6, iPhone 6 Plus, iPhone SE, iPhone 5S
12.9-inch iPad Pro, 2nd generation 12.9-inch iPad Pro, 1st generation 10.5-inch iPad Pro, 9.7-inch iPad Pro, iPad Air 2, iPad Air, iPad 5th generation, iPad mini 4, iPad mini 3, iPad mini 2
iPod touch 6G
Online jailbreak is the easiest way, and you can directly download unc0ver Jailbreak IPA to your device. UnCover Online method exclusively available with Silzee Online JB App. You can download it using zJailbreak, Xabsi or iExtras third-party app stores.
However, it is recommended to follow the given below instructions to increase your Jailbreak success rate. You should always follow up these steps before starting any jailbreak process.
Enable Airplane Mode.
Disable Siri / Disable Touch ID.
Close all open applications or games from the app switcher.
Restart your device and then Launch the jailbreak app.
Step 01 - First download one of app stores from zJailbreak, Xabsi or iExtras using following buttons. You need to provide the device passcode for the installation process.
Step 02 - Then launch the downloaded app store from your iPhone or iPad. Find for the Silzee Online JB app.
Step 03 - Tap the Install button to download Silzee Online JB app to your device.
Step 04 - Now open Silzee app and Tap on Unc0ver Jailbreak button to sideload the unc0ver app to your device.
Step 05 - Once you have successfully installed the Unc0ver app sideloaded navigate to Settings > General > Profile & Device Management > Trust the Developer app.
Step 06 - Open the unc0ver app from your device homescreen and tap Jailbreak button to jailbreak your device.
Step 07 - Wait until Jailbreak Complete. Your device will restart at least twice during the process.
Step 08 - Once exploitation finished, Cydia will be installed on your device.
Enjoy! your iOS device is now jailbroken! Now you can Install the desired tweaks and jailbreak packages.
Step 01 - Download the unc0ver IPA and Cydia Impactor from following buttons.
Step 02 - Connect your device to the computer with a lightning cable. It should recognize your device once you connected.
Step 03 - Drag the IPA file to Cydia Impactor window. Sign in with your Apple ID & Password when prompted.
Step 04 - Cydia Impactor will begin to side-loading the unc0ver jailbreak app to your device.
Step 05 - Once the jailbreak app is installed on your device, you must trust the developer profile to avoid the “untrusted certificate” message. Go to Settings → General → Profiles & Device Management → Trust (tap on your Apple ID).
Step 06 - Now run the unc0ver app from your device. Tap the Jailbreak button to begin the exploitation process.
Step 07 - It will take a few seconds and it should respring your iOS device finally. Once finished, Cydia will be installed on your device.
Note: - If you don’t see Cydia after jailbreaking with unc0ver, then reboot and re-launch the unc0ver jailbreak app and keep trying until it works.
Unc0ver is semi untethered Jailbreak tool. When your device restarts, the jailbreak will be disabled. You need to re-Jailbreak your device using the Unc0ver app.
Uncover Jailbreak developed by pwn20wnd with Sam Binger (@sbingner.) Also, Dennis Bednarz, and Samg_is_a_ninja even behind this Unc0ver Jailbreak release.
Pwn20wnd is a former member of the Electra Jailbreak team. He owns few Cydia Repos too.
A few months ago, Coolstar tweeted that Pwn20wnd has removed from the Electra team due to his recent behavior. He said that Pwn20wnd was planning to leak the source code, and have open sourced before him.
As well unc0ver jailbreak iOS 11.4.1 support also not included.
And, Unc0ver jailbreak iOS 11.4 public version support also not added yet even if supported iOS 11.4 beta versions.
As the every Jailbreak tools, unc0ver Jailbreak has bugs and common jailbreak errors. Sometimes unc0ver jailbreak not working or tweaks not working with Unc0ver.
Here is the list of errors.
ERRNO: 1 TEST: RV == 0 FILENAME: VIEWCONTROLLER.M LINE: 1100 FUNCTION: EXPLOIT
ERRNO: 2 TEST: RV == 0, FILENAME: VIEWCONTROLLER.M LINE: 1484 FUNCTION: EXPLOIT
ERRNO: 2 TEST: RV == 0 FILENAME: VIEWCONTROLLER.M LINE: 1913 FUNCTION: EXPLOIT
ERRNO: 2 TEST: RV == 0, FILENAME: VIEWCONTROLLER.M LINE: 2141 FUNCTION: EXPLOIT
ERRNO: 3 TEST: MACH_PORT_VALID(TASK_PORT) FILENAME: VIEWCONTROLLER.RN LINE: 215 FUNCTION: INJECT_LIBRARY
PROGRESS BAR GETS STUCK AT 1/48
UNC0VER IS STUCK ON 7/48.
OS FIRMWARE <8.3 AND LINK IDENTITY EDITOR >=1:1.2.1 FOR INSTALLING TWEAKS
CYDIA IS NOT WORKING
The developer, Pwn20wnd promised to fix all errors.
Pwn20wnd has fixed most of the errors. He has released 11 updates for the unc0ver tool at this time.
He updated the changelog RC1 to RC9. Further, he has released V1 & V1.0.1 updates to fix the snapshot related issues, make the settings tab match with the rest of the UI, more minor fixes and disable the rootfs restore on iOS 11 - iOS 11.1.2 versions.
He fixed Enable and fix the RootFS Restore for all versions and various bug by releasing v1.0.2 to v1.1.1 updates.
Pwn20wnd releases unc0ver V1.1.2 by adding following features to improve exploit success rates.
Improve auto layout
Significantly improve the success rate of the Empty_List (VFS) exploit
Slightly improve the success rate of the Multi_List (MPTCP) exploit
So you are experiencing any of error, switch to a newer version of the unc0ver jailbreak tool.
All exploits in same app
Detailed error messages
More stable patches
No extra battery drain
No random freezes
No random slow downs
No data is logged or shared
Proper jailbreak state detection
Proper bootstrap extraction to fix issues such as Cydia not appearing after jailbreak
Native build of Cydia for iOS 11
Telesphoreo port for ARM64
Much faster Cydia
Much more stable Cydia
Much more modern looking and acting Cydia
When we compare Unc0ver with Electra Jailbreak, almost both are same.
Both Jailbreak tools compatible for same iOS versions.
Use Cydia Substrate for tweak injection instead of Substitute.
Included Cydia which is approved by saurik.
But according to Pwn20wnd ,unc0ver provides better stability, overall reliability, improved battery life/ performance and fixed freeze issues. Further, he said unc0ver is better than Electra Jailbreak because of the above unc0ver features.
If you are facing problems with Electra jailbreak it is time to switch to unc0ver from Electra jailbreak. You need to bring your device in jailbreak state if you’ve already jailbroken your iPhone or iPad with Electra Jailbreak. You can unjailbreak it with Rollectra/SemiRestore.
Step 01 - You should backup your data with iCloud or iTunes before running the SemiRestore11 / Rollectra tool.
Step 02 - Open Cydia from your iOS device. Search for “SemiRestore11” on the search tab. Select the SemiRestore11 tool from the result list.
Step 03 - Tap on Install to your device. Once done, SemiRestore app will be available on your device homescreen.
Step 04 - Run SemiRestore tool from your device and tap Unjailbreak to start the unjailbreak process.
Step 05 - Tap Erase All from popup confirmation message.
Step 06 - Finally it will restart your device and reboot as a new device.