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Continue to ChatOneplus 8: OxygenOS 11.0.9.9 with October 2021 security patch https://www.updatifynow.com/oneplus-8-october-2021-security-patch/
Oneplus 8: OxygenOS 11.0.9.9 with October 2021 security patch https://www.updatifynow.com/oneplus-8-october-2021-security-patch/