OnePlus 5T Can't Stream HD

OnePlus has come a long way, but they still make mistakes. Apparently they didn't include support for a particular version of DRM used by Google Play Movies, Netflix, Amazon Prime and others - making default video resolution on the device a mere SD. That is not good at all and it doesn't instill a lot of confidence in their latest device. The DRM patch will be released in the future, but at the moment you're stuck watching movies like it's 1999.

The deficiency was noted in a thread on the OnePlus forums and points to lack of support for Widevine Level 1 DRM, which many services require for HD streaming. The 5T currently supports Widevine Level 3, which only covers standard definition streams. The Verge has confirmed that both the OnePlus 5T and its predecessor, the OnePlus 5, are currently unable to stream Netflix or Amazon Prime Video higher than SD resolution.

Source: TheVerge