downgrade tethered checkm8 idevices ios 14, 15.

download the ipsw and put it into ipsw/ directory

Example: ./downr1n.sh --downgrade 14.3

--downgrade         downgrade tethered your device to ios 14,15.

--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.

--fixBoot           that will boot the device using fsboot

--debug             Debug the script

• 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

• 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

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

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