T-Mobile OnePlus 8 gets Google Live Caption and 5G support on bands 2, 66 with latest OxygenOS update

T-Mobile OnePlus 8 gets Google Live Caption and 5G support on bands 2, 66 with latest OxygenOS update

The T-Mobile OnePlus 8 is receiving its first OxygenOS update in the US.  The update bumps the security patch level, adds support for additional 5G bands, and fixes general bugs. This is a relatively minor update compared to the one rolled out to the unlocked Indian/EU/North American OnePlus 8 units which brought along many enhancements and improvements.

OnePlus 8 XDA Forums

The T-Mobile OnePlus 8 update comes with the software version number 10.5.8.IN55CB. It is 308MB in size and also packs the April 2020 security patches. Most notably, the update adds support for two additional Sub-6GHz 5G bands: n2 and n66, bringing the total number of 5G band support to five on this phone. The phone already supports T-Mobile’s low-band 5G on n71 band and Sub-6GHz 5G through n41 and n5 bands out-of-the-box.


The update also brings support for Google’s Live Caption feature which automatically displays subtitles when you’re playing a video, podcast or a voice message on your phone. The Live Caption was rolled out to the unlocked OnePlus 8 with the first OxygenOS update and it’s also available on last year’s OnePlus 7 series.

The full update changelog for the T-Mobile OnePlus 8 is as follows:

  • 5G support for bands 2 and 66
  • Google live caption
  • General improvement and fixes

T-Mobile hasn’t updated its software tracker page with the rollout details yet so this doesn’t appear to be a wider rollout at this stage. Unfortunately we haven’t gotten our hands on a direct OTA download link yet so you’ll have to wait for the automatic rollout to hit your device. Alternatively, you can also head to Settings > System Updates to manually check the update status.

The T-Mobile OnePlus 8 differs from the standard OnePlus 8 in that it has an IP (Ingress Protection) rating and only comes in 8GB RAM and 128GB of internal storage. T-Mobile is also the exclusive U.S. carrier of the Interstellar Glow color. Finally, unlike the Verizon OnePlus 8, the T-Mobile OnePlus lacks mmWave 5G support.

Thanks to XDA Senior Member KOLIOSIS for the screenshot!

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Kishan Vyas
Kishan Vyas

A loyal Android user since Android 2.1 Eclair. Direct inquiries to [email protected]

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