Mukul Singh

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How To Fix Signature Verification Failed Error 21

How To Fix Signature Verification Failed Error 21

Since its release in 2008, Android has been an open-source project that has attracted many developers to contribute and enhance the user experience. Developers even added some functionalities which were never present in the original android version such as audio enhancement. But the most significant achievement of the developers is Custom ROM. In layman’s terms,

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