(Firmware Download) Manually update OnePlus 3T to OxygenOS 3.5.4 version based on Android 6.0.1 Marshmallow

Jesse Han   2016.12.16 8:16   Jesse Han  

Have you got an OnePlus 3T? While the phone from OnePlus has just been released, it’s very popular since it’s cost-effective.

If you’re one of OnePlus 3T users then I cay say with absolute certainty that happiness will be yours because a new update is coming towards your phone.

This is an Android 6.0.1 Marshmallow update, it moves your OxygenOS to new version number 3.5.4, the Android security patch level is November 2016. The update includes also various optimizations, such as optimizations for US-TMO network, which brings better support for T-Mobile network, optimizations to Reduce lag when Battery is below 5%, the Bluetooth connectivity for Mazda Cars is now also improved, improved Battery Saving Mode for GPS and Orientation Preferences.

OnePlus is now rolling out the OxygenOS 3.5.4 update by the OTA, but if you like, you can manually update your OnePlus 3T to the latest system version since the incremental OTA and full firmware files are both now alive.


Firmware Download Directly

To manually update your OnePlus 3T by flashing the appropriate firmware file, that is actually pretty simple, you can refer to the simple guide below, there is also a full tutorial for you.

Simple guide to flash OxygenOS 3.5.4
  1. Copy the OxygenOS 3.5.4 firmware file you download to the root folder of the phone
  2. Go to Settings, System Updates, Settings icon, Local Upgrade
  3. Select the OxygenOS 3.5.4 firmware file you copied
  4. You will see a upgrade now prompt
  5. Select upgrade now
  6. The updating process will start at once
  7. Wait for the update to be completed

Your OnePlus 3T will automatically reboot after the update is finished.