AssertionError Segmentation fault: 11

[kr0bi]

hi, i have a problem with your tool vieux... I'm trying to downgrade my iPhone 5S currently with iOS 12.4.3 to iOS 10.3.3, i've followed all your requirements in the github page but it gave me an error and I dont't know what's causing it.

OS 10.15.2 MacBook Pro Retina Mid 2012

log:

./vieux -i "iPhone_4.0_64bit_10.3.3_14G60_Restore.ipsw"

                                           /(//* /                         
                                        /(%@&/*((//*/                      
                                     (((((* %(&@@(*,///                    
                                   ((,((((((((/%%/,/(///                   
                                 ((((((((/*.((((////////**                 
                                (((((((((((((((((///////**.                
                                ((((((((((((((((//////*** .                
                                ((((((((((((((//*//(%#(/*..               
                                (((((((((((////** /%%#(* .                 
                                 (////////////**..##(/* ..                
                                *(/*******,,,,...,* ,...***.               
                               *(((&@@*.......*/***/////(//*////           
                           *** /((#@@@@@@@@@@@@@@@(///(((/**/*///          
                         #&(***/((%@@@@@@@@@@@@@@@(/((((// *****           
                        ((((%(*/((#@@@@@@@@@@@@@@@@((((//****              
                         (((((////(&@@@@@@@@@@@@@(((((//*,,,,           
                          ((((.//* %&&@@&&@@&((((////,.,,/((*          
                           (((/* **(%%&&&&&&&((((//**/** ((//            
                            (((((* ./##%%%%#((///**#&*******           
                             /((*      */(((/****/(((((#(**             
                                                 *(((((((              
                                                  (((((((*               
                                                 *((((((*                 
                                                   (((((                  

Vieux - A tool for 32/64 Bit OTA downgrades Still in BETA so expect issues/broken things If you are using a 64 Bit device then connect it in DFU Mode If you are using a 32 Bit device then just have it connected in NORMAL mode Files cleaned. iPhone_4.0_64bit_10.3.3_14G60_Restore.ipsw is a zip archive! Starting IPSW unzipping Continuing... IPSW found at given path... Cleaning up old files... Files cleaned. Unzipping.. Traceback (most recent call last): File "./vieux", line 79, in ipsw.unzipIPSW(argv[2]) File "/Users/Mac/Desktop/Vieux/Vieux/ipsw.py", line 153, in unzipIPSW pwndfumode() File "/Users/Mac/Desktop/Vieux/Vieux/restore.py", line 22, in pwndfumode device = dfu.acquire_device() File "/Users/Mac/Desktop/Vieux/Vieux/resources/ipwndfu/dfu.py", line 20, in acquire_device for device in usb.core.find(find_all=True, idVendor=0x5AC, idProduct=0x1227, backend=backend): File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/usb/core.py", line 1263, in find raise NoBackendError('No backend available') usb.core.NoBackendError: No backend available

[kr0bi]

fixed with brew install libsub

but now I've another problem

Vieux - A tool for 32/64 Bit OTA downgrades Still in BETA so expect issues/broken things If you are using a 64 Bit device then connect it in DFU Mode If you are using a 32 Bit device then just have it connected in NORMAL mode Files cleaned. iPhone_4.0_64bit_10.3.3_14G60_Restore.ipsw is a zip archive! Starting IPSW unzipping Continuing... IPSW found at given path... Cleaning up old files... Files cleaned. Unzipping.. Found: CPID:8960 CPRV:11 CPFM:03 SCEP:01 BDID:02 ECID:000007B7CAA87ED0 IBFL:1C SRTG:[iBoot-1704.10] Traceback (most recent call last): File "vieux", line 79, in ipsw.unzipIPSW(argv[2]) File "/Users/Mac/Desktop/Vieux/Vieux/ipsw.py", line 153, in unzipIPSW pwndfumode() File "/Users/Mac/Desktop/Vieux/Vieux/restore.py", line 28, in pwndfumode runexploit = checkm8.exploit() File "/Users/Mac/Desktop/Vieux/Vieux/resources/ipwndfu/checkm8.py", line 532, in exploit libusb1_async_ctrl_transfer(device, 0x21, 1, 0, 0, b'A' * 0x800, 0.0001) File "/Users/Mac/Desktop/Vieux/Vieux/resources/ipwndfu/checkm8.py", line 45, in libusb1_async_ctrl_transfer assert usb.backend.libusb1._lib.libusb_cancel_transfer(transfer_ptr) == 0 AssertionError Segmentation fault: 11

[MatthewPierson]

That’s just the exploit failing, keep trying and rebooting the phone back into dfu mode

[HanMs]

done brew install libusb seems to work now...

[kr0bi]

done brew install libusb seems to work now...

Didn't you have my problem after install libusb?

[MihaelIsaev]

keep trying and rebooting the phone back into dfu mode

this helps, just tried one more time after segmentation fault 11 and it started downgrading! So now my iPad Air is on iOS 10.3.3!!! Yaaaay!

[zupu8]

这个问题有解决了吗？

[zupu8]

尝试了很多次换线，都不行

[zhoushoujianwork]

Traceback (most recent call last): File "/Users/zhoushoujian/Downloads/Vieux/./vieux", line 89, in ipsw.unzipIPSW(argv[2]) File "/Users/zhoushoujian/Downloads/Vieux/ipsw.py", line 153, in unzipIPSW pwndfumode() File "/Users/zhoushoujian/Downloads/Vieux/restore.py", line 28, in pwndfumode runexploit = checkm8.exploit() File "/Users/zhoushoujian/Downloads/Vieux/resources/ipwndfu/checkm8.py", line 532, in exploit libusb1_async_ctrl_transfer(device, 0x21, 1, 0, 0, b'A' * 0x800, 0.0001) File "/Users/zhoushoujian/Downloads/Vieux/resources/ipwndfu/checkm8.py", line 45, in libusb1_async_ctrl_transfer assert usb.backend.libusb1._lib.libusb_cancel_transfer(transfer_ptr) == 0 AssertionError

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