Undecimus: iPhone X, 12.4, unc0ver 3.5.3 - reboots upon attempted jailbreak

[samyk]

Describe the bug
Thank you for the hard work! Issue: When attempting jailbreak, phone almost immediately reboots without executing jailbreak. Have attempted 10+ times. I've disabled Siri, enabled Airplane mode, and exited all apps each time before trying.

To Reproduce
Steps to reproduce the behavior:

1. Click to open "unc0ver" app.
2. Click "jailbreak"
3. Phone reboots

Screenshots
If applicable, add screenshots to help explain your problem.

Device (please complete the following information):

• iOS Version: 12.4
• iOS Device: iPhone X
• unc0ver Version: 3.5.3

Place an "x" between the brackets if true:

• [x] this is a bug others will be able to reproduce
• [ ] this issue is present with all tweaks uninstalled(except for default packages) or disabled
• [ ] this issue is present after a rootfs restore
• [ ] this issue is present on the latest version of unc0ver

Logs
Taken from deviceconsole before reboot:
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Current task: 0xffffffe005f8f840
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Kernel's IPC space: 0xffffffe0003e6370
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Pipe buffer 9: 0xffffffe03ebc0000
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Pipe buffer 11: 0xffffffe00680b000
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Dummy kernel task port: 0xffffffe0021db678
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Port pointer overwritten
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Stage 1 read64 succeeded
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Kernel VM map: 0xfffffff11ab22320
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Stable kernel task port 25607: 0xffffffe0021d9b90
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Exploit succeeded, cleaning up
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Cleanup done
Aug 19 18:54:34 the-titanic Undecimus[231] : [] tfp0: 0x6407
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Successfully exploited kernel.
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Finding kernel offsets...
Aug 19 18:54:34 the-titanic Undecimus[231] : [] Progress: Initializing jailbreak...
Aug 19 18:54:34 the-titanic Undecimus[231] : [] kCFCoreFoundationVersionNumber: 1575.170000
Aug 19 18:54:34 the-titanic Undecimus[231] : [] offsets selected for iOS 12.0 or above
Aug 19 18:54:34 the-titanic kernel(apfs)[0] : apfs_load_inode:4337: ** reset ino 36366695 size back to 0 (from 34525184)
Aug 19 18:54:34 the-titanic locationd[62] : {"msg":"CLWifi1SystemLogic::apply", "event":"elapsed", "begin_mach":3195686054, "end_mach":3195692919, "elapsed_s":"0.000286042", "event":"Motion::CoarseMovement", "now_s":"587958874.704206944"}
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Escaping sandbox...
Aug 19 18:54:35 the-titanic Undecimus[231] : [] myProcAddr = 0xffffffe0059f3790
Aug 19 18:54:35 the-titanic Undecimus[231] : [] kernelCredAddr = 0xffffffe0006b9dd0
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Shenanigans = 0xffffffe0006b9dd0
Aug 19 18:54:35 the-titanic Undecimus[231] : [] myOriginalCredAddr = 0xffffffe0006bab50
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Successfully escaped sandbox.
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Setting HSP#4 as TFP0...
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Successfully set HSP#4 as TFP0.
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Setting kernel task info...
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Successfully set kernel task info.
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Platformizing...
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Successfully initialized jailbreak.
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Successfully unexported kernel task port.
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Successfully wrote a test file to UserFS.
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Progress: Unexporting kernel task port...
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Successfully dumped APTicket.
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Progress: Writing a test file to UserFS...
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Progress: Dumping APTicket...
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Successfully logged slide.
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Progress: Logging slide...
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Progress: Logging ECID...
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Successfully logged ECID.
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Progress: Disabling Auto Updates...
Aug 19 18:54:35 the-titanic Undecimus[231] : [] modifyPlist: Will modify plist: /var/mobile/Library/Preferences/com.apple.Preferences.plist
Aug 19 18:54:35 the-titanic Undecimus[231] : [] modifyPlist: Writing to file: /var/mobile/Library/Preferences/com.apple.Preferences.plist
Aug 19 18:54:35 the-titanic Undecimus[231] : [] modifyPlist: Success
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Successfully disabled Auto Updates.
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Initializing kernel code execution...
Aug 19 18:54:35 the-titanic locationd[62] : {"msg":"CLWifi1SystemLogic::apply", "event":"elapsed", "begin_mach":3218676868, "end_mach":3218683684, "elapsed_s":"0.000284000", "event":"Motion::CoarseMovement", "now_s":"587958875.662150979"}
Aug 19 18:54:35 the-titanic Undecimus[231] : [] Successfully initialized kernel code execution.
Aug 19 18:54:35 the-titanic Undecimus[231] : [] IODTNVRAM obj at 0xffffffe0004c8ec0

[fearlesspixel]

I am having the same issue with an iphone 8 plus, also running 12.4.

[forsoftware0044]

I am having the same issue with an iphone 6 running 12.4 and restarts at "8"

[forsoftware0044]

fearlesspixel try unc0ver 3.5.2 it worked for me iphone 6 12,4

[Yongle-Fu]

I am having the issue with an iphone 6s running 12.4 and restarts at "2"

[fearlesspixel]

unc0ver 3.5.2 worked! Thank you!

[Yongle-Fu]

unc0ver 3.5.2 worked! Thank you!

[jdambacher]

I'm having the same issue, but also version 3.5.2 is not working. It will reboot after a few seconds. It's an iPhone 7 with 12.4

[jdambacher]

I'm having the same issue, but also version 3.5.2 is not working. It will reboot after a few seconds. It's an iPhone 7 with 12.4

Ahhh it worked now. It helped to active the option "Reinstall Cydia" and disable "Reload Daemons"

[msairul]

not worked:
unc0ver: 3.5.3
iphone 5s
update to 12.4 via OTA from 12.3
tested on unc0ver 3.5.2 not worked too

phone restarted during jailbreaking around 8/31 process or sometimes hang on 1/31

[jdambacher]

@msairul Try to enable "Reinstall Cydia" and disable "Reload Daemon" in the options menu. This worked for me.

[ProfMertes]

thanks for sharing. unfortunately didn't work for me.
unc0ver: 3.5.2
iPad Pro 9,7" 2016 (A9X)
IPSW-Update to 12.4

[samyk]

I updated to 3.5.6 and this is now resolved for me -- I had to make no setting adjustments. Thanks!