What's new on OxygenOS Open Beta 19 ? System Updated Android security patch to 2018.10 General bug fixes and improvements Recovery: https://oxygenos.oneplus.net.s3.amazonaws.com/recovery.img md5: 738c9e4a2de1c69932073aa0965f60de How to upgrade system? Download the software build for your device on this page. Please back up your data before flashing your device. Plug your phone into…