How to Roll Back the Android System to the Old Version? - ZTE

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How to Roll Back the Android System to the Old Version?

The FOTA upgrade mode cannot be downgraded to the old version. Generally, the latest offline SD card upgrade package is placed on the official website of ZTE. Due to the difference in the upgrade of the Android large version, the card brush may not be upgraded completely. Currently, only the factory flash mode can ensure the integrity of the upgrade.

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