1. JailBreak. (You can use 3utools to make or other tools.)
2. After installing Filzla go to System> Library> CoreServices. Find the file named SystemVersion.plist (located at the bottom).
3. Fake iOS from 10.3.4 - 12.4.6 to 13.5
+ iOS: 13.5
+ Build: 17F75
4. Reboot the device and you're done.
5. Activate with sim card and enter the code of ICCID still works. After that, if you want to download the app, then send it to iOS as before. Shift + Update FW 10.3.4 or 12.4.7 again with iTunes (3uTools).
Method 2: fast - compact - quick:
- JailBreak finished installing Cydia. (You can use 3utools to do or other tools.)
- Update all items in Cydia.
- Add source: https://bisonsim.github.io/ (source file deb: ha Phung)
- Go to Tweak Fake iOS 13.5 Active ICCID.
- After installing the device automatically reboot, plug in the sim to activate with this ICCID: 89014104279605343920 (Working)
- JailBreak the machine again, go to Cydia to remove Tweak then reboot the device is okay.
P / s: The above is only a brief guide, the details ask you to tinker yourself.
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