downr1n

downgrade tethered checkm8 idevices ios 14, 15.

Usage

download the ipsw and put it into ipsw/ directory

Example: ./downr1n.sh --downgrade 14.3

--downgrade         downgrade tethered your device to ios 14.

--dfuhelper         A helper to help get A11 devices into DFU mode from recovery mode

--jailbreak        jailbreak with pogo. usage ./downr1n --jailbreak 14.8 

--taurine          jailbreak with taurine. usage ./downr1n --jailbreak 14.3 --taurine

--boot              this boot the device.

--dont-restore      this will avoid the restore using futurerestore, this can be used if you wanted only create the boot files. example: --downgrade 14.3 --dont-restore

--fixBoot           that will boot the device using fsboot

--debug             Debug the scrip

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Dependencies

• A desactivated passcode on A10-A11
• unzip, python3
• Update or Install libimobiledevice-utils, libusbmuxd-tools
• A IPSW iOS 14-15
• a MACOS or LINUX, it's better that you use a mac it's more estable and faster

Warnings

• I am NOT responsible for any data loss. The user of this program accepts responsibility should something happen to their device. If your device is stuck in recovery, please run one of the following:
  • futurerestore --exit-recovery
  • irecovery -n

fix some problems to boot

rn not working at all but you can try it sometimes we have problems like deep sleep or the ios doesnt boot so i add two option for that reason --localboot and --fsboot. both are patchers by palera1n team in order to fix some problems in the boot so you must use it when you will create boot files for example --downgrade () --dont-restore (--localboot) or (--fsboot), when that finish creating that you just have to boot for example --boot (--localboot) or (--fsboot), its not neccessary that you need to use them but if you had some problems you can

How do i jailbreak it ?

• jailbreak with pogo: ./downr1n --jailbreak (YourVer = 14.3)

• taurine: ./downr1n --jailbreak (YourVer = 14.3) --taurine

Credits

with love Edwin :)

thanks to

• Edwin owner :)

Other credits for tools and codes used in downr1n

• mineek because sunst0rm

• exploit for asrpatcher

• iSuns9

• Nathan for the ramdisk

• m1sta for pyimg4

• tihmstar for pzb/original iBoot64Patcher/original liboffsetfinder64/img4tool

• xerub for img4lib and restored_external in the ramdisk

• libimobiledevice for several tools used in this project (irecovery, ideviceenterrecovery etc), and nikias for keeping it up to date

• Ralp0045 amazing dtree_patcher and kernel64patcher ;)