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This is an easier version to manual_twrp_install_script.
Usage:
1. Make a folder in the internal storage named "backup"
2. Extract a migrate backup zip file inside the created "backup" folder. The contents of the zip must directly be inside the "backup" folder
3. Don't extract multiple zips.
4. Download this file, open TWRP and flash this file.
5. Reboot and continue restore via the helper app.