Downgrade from IOS 13.3.1 to 13.2.3 using F3arRa1n and bypass icloud

This tutorial can be quite frustrating, and the error rate is slightly higher. sonick14 is very simple, but it costs for the service. F3arRa1n is free you need to download the files and start your bypass icloud and downgrade.
Download: F3arRa1n bypass tool

The current icloud bypass is not 100% complete:

  • Unable to call
  • Unable to send and receive text messages
  • Unavailable use 4G 3G
  • you can’t login to icloud, but this can be fixed
  • Downloading apps in the App Store is slow, because the request process is slow, not the download process
  • Can jailbreak and install various widgets
  • with this tutorial, after the iphone is turned off/restart, you need to use checkra1n CLI mode to restart the jailbreak and boot the device.
  • This works with all checkra1n devices supported
  • gmail works
  • AppStore works and you can install apps

Important NOTE:

  • During the operation, there is a step to quickly enter the DFU before the iphone automatically restarts during the downgrade. If it fails, you need to flash the device from the start from run F3arRa1n again, enter the DFU mode by yourself.
  • During the downgrade step, don’t press the HOME button unless this tutorial tell you to press.
  • Do not use shortcut keys such as ctrl + c in the terminal window. To copy text, use the right mouse button.
  • F3arRa1n has a total of 4 windows, except the main window with a heart-shaped icon, don’t click
  • The carriage return in the following means that the window is still and does not wait for your instructions to enter, rather than entering it during work.
  • Download the 13.2.3 firmware in advance and place it in the IPSW folder of the tool

supporting device

0. Fresh new restore flash 13.3.1 to prevent errors.

1. Install python and dependencies

  • Open a terminal and type
    • / usr / bin / ruby ​​-e “$ (curl -fsSL- https: // )”
    • brew install dpkg
    • brew install wget
    • brew install

2. Jailbreak using checkra1n 0.9.7

  • for the first jailbreak u can use 0.9.7
  • Open a terminal window
  • Right click on checkra1n icon
  • Show package contents
  • Contents
  • MacOS
  • Drag checkra1n_gui to the terminal
  • press enter
  • put the Phone into DFU

3. Downgrade with F3arRa1n

  • here u must use checkra1n 0.9.2 only
  • Run F3arRa1n-Start.command
  • Go to the window with the heart icon
  • Enter EN (must be capitalized) and press Enter
  • Enter the verification code given at the top (case sensitive)
  • Carriage return
    • Enter 1 without an account, register yourself, you must email
  • 2, enter, log in
  • Enter BT, enter, then enter
  • Create a new terminal window and enter the following 2 in order
    • sshpass -p ‘alpine’ ssh -o ‘StrictHostKeyChecking = no’ -p 2222 root @ localhost
    • dpkg -i /DEBS/openssh_8.1-1_iphoneos-arm.deb
  • Back to the main window, enter
  • Confirm that the 13.2.3 firmware is placed in the IPSW folder of the tool, enter V, and press Enter
  • According to step 2, open checkra1n 0.9.2 again (ipad uses 0.9.6) and execute the steps to wait for dfu:-[*] Waiting for DFU devices
  • Press the phone’s HOME button, slide down from the upper left corner when the screen is black, open the settings-Display
    • Turn on Dark
    • Raise to Wake
    • Auto-Lock changed to Never
  • Swipe in the upper left corner to open the green Succession
    • Dismiss
    • Download clean filesystem
    • Use Provided IPSW
    • Override
    • The interface prompts Verifying IPSW, a pop-up window appears after about 1 minute, click back
    • (in Red) Prepare for restore
    • Erase iPhone (in red)
    • Begin restore
  • Pick up your phone, look at the screen, get ready
  • After about 3 minutes, the blue progress bar finishes, and a pop-up window appears on the screen. At this time, quickly enter DFU. Don’t wait for him to restart automatically, otherwise all his achievements will be rejected.
  • If it is normal, it will be jailbroken after restarting, and then the screen should show a black apple + progress bar
  • So far the downgrade is complete

4. Use F3arRa1n to bypass icloud

  • Connect your device to computer
  • Close all terminal windows
  • Run F3arRa1n-Start.command and login
  • Enter D2 and press Enter
  • follow the steps
  • Create a new terminal window and enter
    • sshpass -p ‘alpine’ ssh -o ‘StrictHostKeyChecking = no’ -p 2222 root @ localhost
    • dpkg -i /DEBS/openssh_8.1-1_iphoneos-arm.deb
  • Back to the main window, enter
  • Refer to step 2 to jailbreak again
  • Done, all terminal windows can be closed

4. Delete useless files and free up space

  • Open the filza of the phone
  • Go to / var / mobile / Media / Succession
  • Swipe left on rfs.dmg, ok, delete
  • Click on the bottom gear to enter the filza settings-trash-Empty-OK

5. FInal

  • change language
  • Connect wifi
  • Restore auto-lock time, wake up, dark mode as needed
  • Open the Appstore and click repeatedly to retry. Then log in and test the download

6. Can’t log in to the App Store?

  • Delete the / var / mobile / Library / Accounts folder with Filza
  • Sign in to and remove the device from the device list
  • Follow the steps in this article to re-jailbreak
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