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It replaces specific files required by software installers to ensure they can run on older or incompatible system versions.
It prevents apps from "phoning home" to Adobe servers, which often causes apps to hang or crash when internet connections are unstable.
For example, if your phone shipped with Android 12, the Anti-Rollback Counter might be set to "4." If you try to flash a version of the software intended for an older device state (Counter "2"), the bootloader checks the value, sees a mismatch, and refuses to boot—or in severe cases, permanently bricks the device.
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