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Downgrade iOS Firmware using ReRa1n

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The ReRa1n tool can assist you Downgrade iOS on Windows and linux. ReRa1n is formally supported on Windows and in operation system} operating systems to assist you downgrade Apple devices from A5 to A11 chips quickly. If you have got associate degree iPhone 4S (A5 chip) to iPhone 8 and iPhone X (A11 chip) you’ll downgrade to any firmware.

Rera1n is a tool to help you downgrade bypass iCloud, jailbreak iOS 13 on Windows and Linux. This tool was released by @a_i_da_n based on the checkm8 vulnerability of Apple devices using the A5 – A11 chip.

  • Current NON-JB features: Exit DFU / Restore, Registered Firmware Update.
  • Current JB features: Update Firmware signed, respring (backboardd), respring (SpringBoard), reboot, Respring (Loop-Fix), disable a specified process, uicache, ideviceinfo, install packages, uninstall packages, ssh windows.
  • Upcoming NON-JB features: Downgrade / upgrade Tethered **, Unlimited OTA downgrade *, iDeviceinfo, Possible incident reporter **, direct kernel debugger **, Simple futurestore
  • Upcoming JB features: Downgrade / upgrade Tethered, Unlimited OTA downgrade *, Better iDeviceInfo, livekerneldebugger, Semi-Restore iDevice W / O update **, Simple Futurestore, Entire FS Backup **
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Devices can be downgraded by Rera1n

  • iPhone 5S
  • iPhone 6 and 6 Plus
  • iPhone 6S and 6S Plus
  • iPhone SE
  • iPhone 7 and 7 Plus
  • iPhone 8 and 8 Plus
  • iPhone X
  • iPad Pro (10.5-inch), iPad Pro (12.9-inch)
  • iPad (9.7-inch)
  • iPad Mini 2
  • iPad Mini 3
  • iPad Mini 4

Downgrade iOS on Linux

To Downgrade Iphone firmware on Linux with Rera1n, open Terminal and copy the following commands:

git clone https://github.com/AidanGamzer/ReRa1n.git

cd ReRa1n

sudo cp rera1n.sh /usr/bin

sudo chmod +x /usr/bin/rera1n.sh

sudo apt-get update --fix-missing

rera1n.sh
  • After executing the commands, see the message restart program to continue.

Type the command rera1n.sh again

rera1n.sh
  • The program will ask you to connect iPhone via WiFi, or USB. If connecting the iPhone to the computer with a USB cable, you type the USB (note the correct capital letters).
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  • Open a new terminal window and type the command: cd rerain-dep && sudo ./forward.sh
cd rerain-dep && sudo ./forward.sh
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  • Return to the first Terminal window, press Enter, then the message Enter the root password of your iDevice will be displayed. You type the password is: alpine
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When Connected to iDevice is notified, continue to follow the on-screen instructions to downgrade your ios firmware using ReRa1n.

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