February 22nd, 2021 
Marty Figgs 
Earlier this month, OnePlus started rolling out OxygenOS 5.0 (aka Android 8.0 Oreo) to the OnePlus 3 and 3T. Meanwhile, Oreo for the newer OnePlus 5 is still in beta. If you have a 3 or 3T, and you’d rather not wait for the update to be pushed to your phone, you can now download the system images straight from OnePlus’ website.
OnePlus has dedicated pages for both models with instructions for updating.
OnePlus releases Oreo system images for OnePlus 3 and 3T was written by the awesome team at Android Police.
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