Cannot jailbreak anymore (error code -20)

[TngySt]

What device + iOS version are you on? iPhone 7 (9.3)

What are the steps to reproduce the issue?

1. Jailbreak with checkra1n
2. Try to install Cercube for YouTube (which is not yet updated for iOS 13) and respring
3. iPhone should go into non-jailbroken state
4. Try to re-jailbreak with checkra1n
5. Error -20 occurs as shown in the following screenshot

What do you expect, and what is happening instead? I expected the tweak to be install and maybe to be buggy, but I cannot jailbreak my iPhone 7 anymore

Any other info, error logs, screenshots, ...?

EDIT: I reset my iPhone, and it has not changed anything. I stil have the Cydia icon on the SpringBoard, but I cannot launch it

[zm2231]

I have the same issue as well but have not gotten into jailbroken state yet

[AnonMujo]

same Problem with iphone X (GMS) on iOS 13.1.3

[joshcb]

Same issue. iPhone X (GSM) iOS 13.0

Going to try a few things and report back

EDIT:

My issue was resolved after updating from iOS 13.0 -> 13.2.2

[CrazyKidd]

I have the same Problem with iPhone 7 (Global) (OS 12.4.1)

Detail information as follow #

Checkra1n beta 0.9

#

Proudly written in nano

(c) 2019 Kim Jong Cracks

#

======== Made by =======

argp, axi0mx, danyl931, jaywalker, kirb, littlelailo

nitoTV, nullpixel, pimskeks, qwertyoruiop, sbingner, siguza

======== Thanks to =======

haifisch, jndok, jonseals, xerub, lilstevie, psychotea, sferrini

Cellebrite (ih8sn0w, cjori, ronyrus et al.)

==========================

• [*] Waiting for DFU devices
• [*] Exploiting
• [*] Checking if device is ready
• [*] Exploiting
• [*] Setting up the exploit (this is the heap spray)
• [*] Right before trigger (this is the real bug setup)
• [*] Exploiting
• [*] Entered download mode
• [*] Booting...
• [!] Timed out waiting for bootstrap upload (Error -20)

[Rihcus]

I got this err a bit but had two sucesses my only guess is the timeing instructions for checkra1n are off

[DjElectricUA]

Same issue. Iphone 8+ - IOS 13.1.3 (Cercube for YouTube and he can't jailbreak any more) Stuk on code -20 and Iphone screeen stuck on checkra1n bootroom. After resset stiil same Now need wait update for fix this issue.

[jacksonchui]

I tried to install cercube as well and am running into the same issue. (iPhone X 12.2.2)

[Yeezus888]

Same issue on 6 plus with ios 12.3.1. Installed eqe and got the same issue after respring

[TngySt]

I edited the post.

[AnonMujo]

I edited the post.

Same issue , i had also try to reset my iphone but it dosent work :/ I think we must wait for an update :/

[CrazyKidd]

Fixed,I do not know how to fix the problem exactly.... I failed many times and intended to try it again.I open cheackraln app first, after I let iPhone entered DFU mode, cheackraln app crashed suddenly,Mac given me a dialog and asked me if reopen cheackraln,I choosen yes.a few seconds later,my iPhone has a boot animation and then boot successfully,I found checkraln has been installed on device. I guess the problem relate to your order of operations.

[nullpixel]

This issue is caused by a faulty tweak. Following this guide should help you get out of it: This is caused by a faulty tweak which is not checkra1n's fault. Please follow this guide to resolve the issue: https://www.reddit.com/r/jailbreak/comments/ducjw9/tutorial_how_to_enter_safe_mode_and_remove_bad/

[amazingvine]

Same issue. iPhone X (GSM) iOS 13.0

Going to try a few things and report back

EDIT:

My issue was resolved after updating from iOS 13.0 -> 13.2.2

So u updated ur iOS version and it worked?

[Rihcus]

Same issue. iPhone X (GSM) iOS 13.0 Going to try a few things and report back EDIT: My issue was resolved after updating from iOS 13.0 -> 13.2.2

So u updated ur iOS version and it worked?

I had to do a dfu restore and restore a backup prior to jb/tweak that fixed it

[joshcb]

Yes. I should note that my error -20 had nothing to do with Cercube. It was a fresh install of 13.0 that failed repeatedly. Updating to 13.2.2 and running the exploit worked flawlessly

On Nov 11, 2019, at 11:07 AM, Rihcus Ramukavis notifications@github.com wrote:  Same issue. iPhone X (GSM) iOS 13.0 Going to try a few things and report back EDIT: My issue was resolved after updating from iOS 13.0 -> 13.2.2

So u updated ur iOS version and it worked?

I had to do a dfu restore and restore a backup prior to jb/tweak that fixed it

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[Rihcus]

Weird when I installed cercube I got bootlooped and then always -20. Maybe substrate safe mode wasn’t updated (I think the fixed it 0.9.1

[harbk]

Time out waiting for bootstrap upload (error code -20) what should I do

[gabatx]

https://www.youtube.com/watch?v=HkQS_HwwKr8