After receiving OxygenOS 5.1.2, the OnePlus 5 and OnePlus 5T again are receiving the OxygenOS 5.1.3 update. The new update for OnePlus 5 and 5T is coming out over-the-air (OTA) update.
The file size of the update is around 58MB. Changelog of the update entails system updates but does not include the latest Android security patch. It is just a minor update that comes with a few under-the-hood optimisations and a fix for a security issue with the bootloader. While the security issue has been resolved, it is unfortunate that Google’s June security patch is not included in the latest OxygenOS update.
Meanwhile, the OxygenOS 5.1.3 software update to the OnePlus 5 and 5T also resolves some inconsistencies with the Bluetooth audio for cars. Some users were apparently having stability issues with the connection, but the issue has not been fixed. Additionally, a few other general bug fixes and improvements have also rolled out with the update.
OnePlus 5 and OnePlus 5T users, who have not received the OTA update, can check by going into Settings > System updates. You can also download the latest OxygenOS ROM through OnePlus forums and install it using the given instructions. As usual, users are advised to take a complete backup and ensure that the battery is charged before installing the update.