Signature Verification Failed during manual update.

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CannedBullets

Member
Jun 25, 2014
22
0
SF Bay Area
I'm trying to install FRG83G but every time I do it in the recovery it says Signature Verification failed. How do I fix that? Is there a version of FRG83G which doesn't need Signature Verification? The phone's unrooted and I'm on stock.